*/}\r\n {/* {this.state.stageTwoOpen && */}\r\n
\r\n
DESIGN CALCULATION FOR SHUTTER / GATE LEAF / STOPLOG
\r\n {/* *************DESIGN DATA************* */}\r\n
\r\n
\r\n \r\n \r\n 1). DESIGN DATA: -\r\n
\r\n \r\n
\r\n
\r\n \r\n {'a). Width of opening'}
\r\n \r\n \r\n {'='}
\r\n \r\n \r\n {fieldObjShutter && fieldObjShutter.width ? checkForNull(this.returnFieldInteger('width')).toFixed(0) : 0} {'mm'}
\r\n \r\n \r\n {fieldObjShutter && fieldObjShutter.width ? `${checkForNull(this.returnFieldInteger('width') / 1000).toFixed(2)} m` : 0}
\r\n \r\n
\r\n
\r\n \r\n {'b). Height of opening'}
\r\n \r\n \r\n {'='}
\r\n \r\n \r\n {fieldObjShutter && fieldObjShutter.height ? checkForNull(this.returnFieldInteger('height')).toFixed(0) : 0} {'mm'}
\r\n \r\n \r\n {fieldObjShutter && fieldObjShutter.height ? `${checkForNull(this.returnFieldInteger('height') / 1000).toFixed(2)} m` : 0}
\r\n \r\n
\r\n
\r\n \r\n {'c) Design seating head'}
\r\n \r\n \r\n {'='}
\r\n \r\n \r\n {checkForNull(fieldObjShutter.seatingHead * 1000)} {'mm'}
\r\n \r\n \r\n {`${(checkForNull(fieldObjShutter.seatingHead)).toFixed(3)} m`}
\r\n \r\n
\r\n
\r\n \r\n {'d) Seating Head on bottom rib'}
\r\n \r\n \r\n {'='}
\r\n \r\n \r\n {checkForNull(this.unseatingHeadCalculation())} {'mm'}
\r\n \r\n \r\n {`${checkForNull(this.unseatingHeadCalculation() / 1000).toFixed(3)} m`}
\r\n \r\n
\r\n
\r\n \r\n {'e) Design unseating head'}
\r\n \r\n \r\n {'='}
\r\n \r\n \r\n {(fieldObjShutter && fieldObjShutter.unseatingHead && fieldObjShutter.seatingHead) ? checkForNull(fieldObjShutter.unseatingHead * 1000).toFixed(0) : 0} {'mm'}
\r\n \r\n \r\n {(fieldObjShutter && fieldObjShutter.unseatingHead && fieldObjShutter.seatingHead) ? `${checkForNull(fieldObjShutter.unseatingHead).toFixed(3)} m` : 0}
\r\n \r\n
\r\n
\r\n \r\n {'f) Unseating Head on bottom rib'}
\r\n \r\n \r\n {'='}
\r\n \r\n \r\n {(fieldObjShutter && fieldObjShutter.unseatingHead && fieldObjShutter.seatingHead) ? checkForNull((fieldObjShutter.unseatingHead * 1000 + this.returnFieldInteger('height') / 2)).toFixed(0) : 0} {'mm'}
\r\n \r\n \r\n {(fieldObjShutter && fieldObjShutter.unseatingHead && fieldObjShutter.seatingHead) ? `${checkForNull((fieldObjShutter.unseatingHead * 1000 + this.returnFieldInteger('height') / 2) / 1000).toFixed(3)} m` : 0}
\r\n \r\n
\r\n {/* *************MATERIAL SPECIFICATION AND PERMISSIBLE STRESSES************* */}\r\n
\r\n
\r\n \r\n \r\n 2). MATERIAL SPECIFICATION AND PERMISSIBLE STRESSES: -\r\n
\r\n \r\n \r\n \r\n {fieldObjShutter.applicableStandard === 'AWWA-C560' ?\r\n 'Reference Documents : AWWA C-560 code of practice for Shutter.' :\r\n fieldObjShutter.applicableStandard === 'BS-7775' ?\r\n 'Reference Documents : BS 7775 code of practice for Shutter.' :\r\n 'Reference Documents : IS 13349 code of practice for Shutter.'\r\n }\r\n
\r\n \r\n
\r\n
\r\n {'Material used for manufacturing:'}*\r\n {'='}\r\n \r\n {materialManufacturedAdjacentText}\r\n \r\n\r\n\r\n
\r\n\r\n
\r\n \r\n {'The above selected material is used for skin plate, vertical stiffeners and horizontal stiffener of Shutter and have following strength :'}
\r\n \r\n
\r\n\r\n\r\n
\r\n \r\n {/* {'Ultimate tensile strength '}
*/}\r\n \r\n {/* \r\n {'Factor Of Safety = '}
\r\n */}\r\n {/* \r\n \r\n
\r\n */}\r\n {/* \r\n {this.state.factorOfSafetyDD == \"CUSTOM\" &&\r\n \r\n FOS\r\n
\r\n }\r\n */}\r\n
\r\n\r\n\r\n
\r\n \r\n {'Ultimate tensile strength '}
\r\n \r\n \r\n {`TS = `}
\r\n \r\n \r\n {`${manufacturingMaterialObj.UTS * 1} Mpa`}
\r\n \r\n \r\n \r\n
\r\n
\r\n \r\n {'Ultimate Compressive Stress'}
\r\n \r\n \r\n {'CS = '}
\r\n \r\n \r\n {`${manufacturingMaterialObj.CS * 1} Mpa`}
\r\n \r\n
\r\n
\r\n \r\n {'Modulus of Elasticity '}
\r\n \r\n \r\n {'E = '}
\r\n \r\n \r\n {`${manufacturingMaterialObj.E} Mpa`}
\r\n \r\n \r\n {/* {this.state.factorOfSafetyDD == \"CUSTOM\" &&\r\n \r\n \r\n
\r\n } */}\r\n \r\n
\r\n\r\n
\r\n \r\n {'Factor of Safety'}
\r\n \r\n \r\n {'FS = '}
\r\n \r\n \r\n {this.state.factorOfSafetyDD === \"CUSTOM\" ?\r\n \r\n \r\n
:\r\n \r\n \r\n
\r\n }\r\n \r\n \r\n \r\n \r\n
\r\n \r\n
\r\n\r\n {/*
\r\n \r\n {'Permissible mono-axial stresses for structural components of hydraulic gates'}
\r\n \r\n
*/}\r\n
\r\n \r\n {'Allowable Stress'}
\r\n \r\n \r\n {' = '}
\r\n \r\n \r\n {'Strength / Factor of Safety'}
\r\n \r\n
\r\n
\r\n \r\n {'Allowable Tensile Stress'}
\r\n \r\n \r\n {'='}
\r\n \r\n \r\n {`${checkForNull(this.tensileStressCalc()).toFixed(2)} Mpa`}
\r\n \r\n
\r\n
\r\n \r\n {'Allowable Compressive Stress'}
\r\n \r\n \r\n {'='}
\r\n \r\n \r\n {`${checkForNull(this.compressiveStressCalc()).toFixed(2)} Mpa`}
\r\n \r\n
\r\n
\r\n \r\n {/* {'Allowable Compressive Stress'}
*/}\r\n \r\n \r\n {/* {'='}
*/}\r\n \r\n \r\n {'Based on the ratio of compressive to tensile strength of cast iron.'}
\r\n \r\n
\r\n {/* ************* DESIGN OF GATE LEAF / STOP LOG ************* */}\r\n
\r\n
\r\n \r\n \r\n 3). TYPICAL HORIZONTAL RIB STRENGTH AND DEFLECTION: -\r\n
\r\n \r\n
\r\n
\r\n \r\n \r\n
The maximum stresses and the deflection are calculated based on the specified design head. The beam is simply supported with a uniform water load for the highest loaded rib (next to the bottom one).
\r\n
\r\n {horizontalSniffersSelect === 'A' &&\r\n <>\r\n
\r\n \r\n C FLAT PLATE = T / 2\r\n \r\n
\r\n
\r\n \r\n C TRAPEZOID = T + H - H(2B + A)/(3 (B + A)\r\n \r\n
\r\n
\r\n \r\n C COMP = (C TRAPEZOID x A TRAPEZOID + C FLAT PLATE x A FLAT PLATE)/ TOTAL AREA\r\n \r\n
\r\n
\r\n \r\n I FLAT PLATE = T x W3/12\r\n \r\n
\r\n
\r\n \r\n I TRAPEZOID = H3(B2 + 4 x B x A + A2)/(36 (B + A)\r\n \r\n
\r\n
\r\n \r\n S1 = I COMP / C COMP\r\n \r\n
\r\n
\r\n \r\n S2 = I COMP / (H + T - C COMP )\r\n \r\n
\r\n
\r\n \r\n I COMP DEFLECTION = (C COMP -C FLAT PLATE)2 x A FLAT PLATE) + I TRAPEZOID + I FLAT PLATE\r\n \r\n
\r\n
\r\n \r\n I COMP = (C TRAPEZOID - C COMP )2 x A TRAPEZOID+((C COMP-C FLAT PLATE)2 x A FLAT PLATE) + I TRAPEZOID + I FLAT PLATE\r\n \r\n
\r\n \r\n }\r\n\r\n {horizontalSniffersSelect === 'B' &&\r\n <>\r\n
\r\n \r\n C FLAT PLATE = T / 2\r\n \r\n
\r\n
\r\n \r\n C TRAPEZOID = T + H - H(2B + A)/(3 (B + A)\r\n \r\n
\r\n
\r\n \r\n C COMP = (C FLAT PLATE (1) x A FLAT PLATE (1) + C FLAT PLATE (2) x A FLAT PLATE (2) + C FLAT PLATE (3) x A FLAT PLATE (3))/ TOTAL AREA\r\n \r\n
\r\n
\r\n \r\n I FLAT PLATE = T x W3/12\r\n \r\n
\r\n
\r\n \r\n S1 = I COMP / C COMP\r\n \r\n
\r\n
\r\n \r\n S2 = I COMP / (H + T - C COMP )\r\n \r\n
\r\n
\r\n \r\n I COMP DEFLECTION = (C COMP - C FLAT PLATE)2 x A FLAT PLATE) + I FLAT PLATE\r\n \r\n
\r\n
\r\n \r\n I COMP = (C FLAT PLATE (1) - C COMP )2 x A FLAT PLATE (1) + (C FLAT PLATE (2) - C COMP )2 x A FLAT PLATE (2) + (C COMP - C FLAT PLATE (3))2 x A FLAT PLATE (3) + I FLAT PLATE (1) + I FLAT PLATE (2) + I FLAT PLATE (3)\r\n \r\n
\r\n \r\n }\r\n\r\n
\r\n \r\n \r\n
\r\n {selectHorizontalRib == 'WITHOUT STEM HOLE' ?\r\n <>
})
\r\n
})
:\r\n <>
})
\r\n
\r\n }\r\n
\r\n
{'SECTION No: A'}
\r\n
\r\n
\r\n {selectHorizontalRib == 'WITHOUT STEM HOLE' ?\r\n <>
})
\r\n
})
:\r\n <>
})
\r\n
\r\n }\r\n
\r\n
{'SECTION No: B'}
\r\n
\r\n\r\n\r\n
\r\n \r\n \r\n \r\n {'TYPICAL HORIZONTAL RIB'}* = \r\n \r\n {/* \r\n {' = '}\r\n */}\r\n \r\n \r\n \r\n
\r\n \r\n\r\n {selectHorizontalRib === 'WITH STEM HOLE' ?\r\n \r\n \r\n \r\n {'STEM DIA'} = \r\n \r\n {/* \r\n {' = '}\r\n */}\r\n \r\n mm
\r\n \r\n
\r\n \r\n : ''\r\n }\r\n
\r\n
\r\n \r\n \r\n \r\n {'We consider section for Horizontal Stiffeners'}* = \r\n \r\n {/* \r\n {' = '}\r\n */}\r\n \r\n \r\n \r\n \r\n {''}\r\n \r\n
\r\n \r\n
\r\n {/* -------------------------new left column design start-------------- */}\r\n
\r\n {horizontalSniffersSelect === 'A' && \r\n \r\n \r\n Where,
\r\n \r\n \r\n \r\n \r\n Considered
\r\n \r\n \r\n Recommended
\r\n \r\n
\r\n \r\n
\r\n \r\n \r\n RIB THICKNESS-1
\r\n A =
\r\n \r\n \r\n \r\n \r\n \r\n \r\n \r\n {`${Number(this.ribThickness2A()) - 2} mm`}\r\n \r\n
\r\n \r\n
\r\n \r\n \r\n RIB THICKNESS-2
\r\n B =
\r\n \r\n \r\n \r\n \r\n \r\n \r\n \r\n {`${this.ribThickness2A()} mm`}\r\n \r\n
\r\n \r\n
\r\n \r\n \r\n RIB HEIGHT
\r\n H =
\r\n \r\n \r\n \r\n \r\n \r\n \r\n \r\n {`${this.ribHeightA()} ${this.ribHeightA() === '' ? '' : 'mm'}`}\r\n \r\n
\r\n \r\n
\r\n \r\n \r\n SHUTTER THICKNESS
\r\n T =
\r\n \r\n \r\n \r\n \r\n \r\n \r\n \r\n {`${this.shutterThicknessA()} mm`}\r\n \r\n
\r\n \r\n
\r\n \r\n \r\n NO OF HORZ RIBS SPACING
\r\n =
\r\n \r\n \r\n \r\n \r\n \r\n \r\n \r\n {`${this.noOfHorizontalRibsSpacingCalcA()} Nos`}\r\n \r\n
\r\n \r\n
\r\n \r\n \r\n RIB DISTANCE
\r\n W =
\r\n \r\n \r\n \r\n \r\n {checkForNull(ribDistanceL).toFixed(2)}{\" mm\"}\r\n \r\n \r\n\r\n \r\n
\r\n \r\n
\r\n }\r\n {horizontalSniffersSelect === 'B' &&\r\n <>\r\n \r\n \r\n \r\n \r\n Where,
\r\n \r\n \r\n \r\n \r\n Considered
\r\n \r\n \r\n Recommended
\r\n \r\n
\r\n \r\n
\r\n \r\n \r\n WIDTH OF FLANGE
\r\n b =
\r\n \r\n \r\n \r\n \r\n \r\n \r\n \r\n {\" mm\"}\r\n \r\n
\r\n \r\n
\r\n \r\n \r\n RIB THICKNESS FOR FLANGE
\r\n t1 =
\r\n \r\n \r\n \r\n \r\n \r\n \r\n \r\n {`${(diagonalVal.Horizontal).toFixed(2)} mm`}\r\n \r\n
\r\n \r\n
\r\n \r\n \r\n RIB THICKNESS FOR WEB
\r\n t2 =
\r\n \r\n \r\n \r\n \r\n \r\n \r\n \r\n {`${(diagonalVal.Horizontal).toFixed(2)} mm`}\r\n \r\n
\r\n \r\n
\r\n \r\n \r\n SHUTTER THICKNESS
\r\n t3 =
\r\n \r\n \r\n \r\n \r\n \r\n \r\n \r\n {`${(diagonalVal.Skin).toFixed(2)} mm`}\r\n \r\n
\r\n \r\n
\r\n \r\n \r\n RIB HEIGHT (WEB)
\r\n d =
\r\n \r\n \r\n \r\n \r\n \r\n \r\n \r\n {\" mm\"}\r\n \r\n
\r\n \r\n
\r\n \r\n \r\n NO OF HORZ RIBS SPACING
\r\n =
\r\n \r\n \r\n \r\n \r\n \r\n \r\n \r\n {(this.horizontalRSCalcTable1(fieldObjShutter.height)).toFixed(2)}\r\n \r\n
\r\n \r\n
\r\n \r\n \r\n RIB DISTANCE
\r\n B =
\r\n \r\n \r\n \r\n \r\n {`${checkForNull(fieldObjShutter.height / fieldObj.hs11).toFixed(2)} mm`}\r\n \r\n \r\n\r\n \r\n
\r\n \r\n
\r\n \r\n \r\n }\r\n
\r\n {/* -------------------------new left column design end-------------- */}\r\n {/* -------------------------new right column design Start-------------- */}\r\n {/* -------------------------new right column design end-------------- */}\r\n
\r\n \r\n {'The \"beam\" is a composite shape made up of a plate and a trapezoidal rib. The anisotropic properties of cast iron are considered. See the sketch for dimensions.'}
\r\n \r\n
\r\n\r\n {horizontalSniffersSelect === 'A' &&\r\n
\r\n \r\n | \r\n A | \r\n B | \r\n H | \r\n W | \r\n T | \r\n H2 | \r\n H3 | \r\n area | \r\n \"C\" | \r\n \"I\" | \r\n
\r\n \r\n | Plate | \r\n - | \r\n - | \r\n - | \r\n {checkForNull(ribDistanceL).toFixed(2)} | \r\n {checkForNull(fieldObj.hs4).toFixed(2)} | \r\n - | \r\n - | \r\n {checkForNull(Number(ribDistanceL) * Number(fieldObj.hs4)).toFixed(2)} | \r\n {checkForNull(Number(fieldObj.hs4) / 2).toFixed(2)} | \r\n {checkForNull(Number(ribDistanceL) * Math.pow(Number(fieldObj.hs4), 3) / 12).toFixed(1)} | \r\n
\r\n \r\n | Rib | \r\n {checkForNull(fieldObj.hs1).toFixed(2)} | \r\n {checkForNull(fieldObj.hs2).toFixed(2)} | \r\n {checkForNull(fieldObj.hs3).toFixed(2)} | \r\n - | \r\n - | \r\n - | \r\n - | \r\n {checkForNull((Number(fieldObj.hs1) + Number(fieldObj.hs2)) / 2 * Number(fieldObj.hs3)).toFixed(2)} | \r\n {checkForNull(tableVal10_3).toFixed(2)} | \r\n {checkForNull(tableVal11_3).toFixed(3)} | \r\n
\r\n \r\n | - | \r\n - | \r\n - | \r\n - | \r\n - | \r\n - | \r\n - | \r\n - | \r\n - | \r\n - | \r\n - | \r\n
\r\n {selectHorizontalRib === 'WITHOUT STEM HOLE' ?\r\n \r\n | - | \r\n - | \r\n - | \r\n - | \r\n - | \r\n - | \r\n - | \r\n - | \r\n - | \r\n - | \r\n - | \r\n
:\r\n \r\n | Handling/Stem hole* | \r\n {checkForNull(tableVal2_5).toFixed(1)} | \r\n {checkForNull(tableVal3_5).toFixed(1)} | \r\n - | \r\n - | \r\n - | \r\n {checkForNull(tableVal7_5).toFixed(1)} | \r\n {checkForNull(tableVal8_5).toFixed(1)} | \r\n {checkForNull(tableVal9_5).toFixed(2)} | \r\n {checkForNull(tableVal10_5).toFixed(2)} | \r\n {checkForNull(tableVal11_5).toFixed(3)} | \r\n
\r\n }\r\n \r\n | Composite | \r\n | \r\n | \r\n | \r\n | \r\n | \r\n | \r\n | \r\n {checkForNull(tableVal9_6).toFixed(2)} | \r\n {checkForNull(tableval10_6).toFixed(2)} | \r\n {checkForNull(tableVal11_6).toFixed(1)} | \r\n
\r\n
\r\n }\r\n\r\n {horizontalSniffersSelect === 'B' &&\r\n
\r\n \r\n | \r\n t1 | \r\n t2 | \r\n d | \r\n B | \r\n t3 | \r\n d1 | \r\n d2 | \r\n Area | \r\n \"C\" | \r\n \"I\" | \r\n
\r\n \r\n | Plate | \r\n - | \r\n - | \r\n - | \r\n {checkForNull(tableVal1B_5_2).toFixed(2)} | \r\n {checkForNull(fieldObj.hs9).toFixed(2)} | \r\n - | \r\n - | \r\n {checkForNull(tableVal1B_9_2).toFixed(2)} | \r\n {checkForNull(tableVal1B_10_2).toFixed(2)} | \r\n {checkForNull(tableVal1B_11_2).toFixed(1)} | \r\n
\r\n \r\n | Rib-Web | \r\n - | \r\n {checkForNull(fieldObj.hs8).toFixed(2)} | \r\n {checkForNull(fieldObj.hs10).toFixed(2)} | \r\n - | \r\n - | \r\n - | \r\n - | \r\n {checkForNull(tableVal1B_9_3).toFixed(2)} | \r\n {checkForNull(tableVal1B_10_3).toFixed(2)} | \r\n {checkForNull(tableVal1B_11_3).toFixed(1)} | \r\n
\r\n \r\n | Rib-flange | \r\n {checkForNull(fieldObj.hs7).toFixed(2)} | \r\n - | \r\n - | \r\n {checkForNull(fieldObj.hs6).toFixed(2)} | \r\n - | \r\n - | \r\n - | \r\n {checkForNull(tableVal1B_9_4).toFixed(2)} | \r\n {checkForNull(tableVal1B_10_4).toFixed(2)} | \r\n {checkForNull(tableVal1B_11_4).toFixed(2)} | \r\n
\r\n {selectHorizontalRib === 'WITHOUT STEM HOLE' ?\r\n \r\n | - | \r\n - | \r\n - | \r\n - | \r\n - | \r\n - | \r\n - | \r\n - | \r\n - | \r\n - | \r\n - | \r\n
:\r\n \r\n | Handling/Stem hole | \r\n - | \r\n {checkForNull(fieldObj.hs8).toFixed(1)} | \r\n - | \r\n - | \r\n - | \r\n {checkForNull(tableVal1B_7_5).toFixed(1)} | \r\n {checkForNull(tableVal1B_8_5).toFixed(1)} | \r\n {checkForNull(tableVal1B_9_5).toFixed(2)} | \r\n {checkForNull(tableVal1B_10_5).toFixed(2)} | \r\n {checkForNull(tableVal1B_11_5).toFixed(1)} | \r\n
\r\n }\r\n \r\n | Composite | \r\n | \r\n | \r\n | \r\n | \r\n | \r\n | \r\n | \r\n {checkForNull(tableVal1B_9_6).toFixed(2)} | \r\n {checkForNull(tableVal1B_10_6).toFixed(2)} | \r\n {checkForNull(tableVal1B_11_6).toFixed(1)} | \r\n
\r\n
\r\n }\r\n\r\n
\r\n \r\n {'* The stem hole or handling hole is a very small part of the overall beam. Although stresses are calculated based on the properties through that section, the value for Moment of Inertia for deflection is based on a solid member.'}
\r\n \r\n
\r\n
\r\n \r\n {'Therefore, Moment of Inertia based on a section member'}
\r\n \r\n \r\n I =
\r\n \r\n \r\n {checkForNull(sectionMemberMOI).toFixed(2)}
\r\n \r\n
\r\n\r\n
\r\n \r\n {'Moment of Inertia based on a solid member'}
\r\n \r\n \r\n Is =
\r\n \r\n \r\n {checkForNull(solidMemberMOI).toFixed(2)}
\r\n \r\n
\r\n\r\n
\r\n \r\n {'For Tensile Seating and Compressive Unseating'}
\r\n \r\n \r\n S1 =
\r\n \r\n \r\n {checkForNull(tensileSeating).toFixed(2)}
\r\n \r\n
\r\n\r\n
\r\n \r\n {'For Compressive Seating and Tensile Unseating'}
\r\n \r\n \r\n S2 =
\r\n \r\n \r\n {checkForNull(compressiveSeating).toFixed(2)}
\r\n \r\n
\r\n\r\n
\r\n \r\n {'The compressive strength and modulus of elasticity are typical values taken from ASM Metals Handbook'}
\r\n \r\n
\r\n
\r\n \r\n {'SEATING HEAD TENSILE STRESS'}
\r\n \r\n
\r\n
\r\n \r\n {'Tensile Stress'}
\r\n \r\n \r\n =
\r\n \r\n \r\n {'Gate Width2 x Maximum Head x 9810 x W )/8/S1'}
\r\n \r\n
\r\n
\r\n \r\n {/* {'Allowable Tensile Stress'}
*/}\r\n \r\n \r\n =
\r\n \r\n \r\n {`${checkForNull(seatingHeadTensileStress).toFixed(2)} Mpa`}
\r\n \r\n
\r\n
\r\n \r\n {'Allowable Tensile Stress'}
\r\n \r\n \r\n =
\r\n \r\n \r\n {`${this.tensileStressCalc().toFixed(2)} Mpa`}
\r\n \r\n \r\n this.tensileStressCalc() ? 'error' : ''} `}>{seatingHeadTensileStress > this.tensileStressCalc() ? 'STRESS TOO HIGH' : ''}
\r\n \r\n
\r\n {/* // Sytart here */}\r\n
\r\n \r\n {'SEATING HEAD COMPRESSIVE STRESS'}
\r\n \r\n
\r\n
\r\n \r\n {'Compressive Stress'}
\r\n \r\n \r\n =
\r\n \r\n \r\n {'Gate Width2 x Maximum Head x 9810 x W )/8/S2'}
\r\n \r\n
\r\n
\r\n \r\n {/* {'Allowable Tensile Stress'}
*/}\r\n \r\n \r\n =
\r\n \r\n \r\n {`${checkForNull(seatingHeadCompressiveStress).toFixed(2)} Mpa`}
\r\n \r\n
\r\n
\r\n \r\n {'Allowable compressive stress'}
\r\n \r\n \r\n =
\r\n \r\n \r\n {`${this.compressiveStressCalc().toFixed(2)} Mpa`}
\r\n \r\n \r\n this.compressiveStressCalc() ? 'error' : ''} `}>{seatingHeadCompressiveStress > this.compressiveStressCalc() ? 'STRESS TOO HIGH' : ''}
\r\n \r\n
\r\n\r\n
\r\n \r\n {'UNSEATING HEAD TENSILE STRESS'}
\r\n \r\n
\r\n
\r\n \r\n {'Tensile Stress'}
\r\n \r\n \r\n =
\r\n \r\n \r\n {'(Gate Width2 x Maximum Head x 9810 x W )/8/S2'}
\r\n \r\n
\r\n
\r\n \r\n \r\n \r\n =
\r\n \r\n \r\n {`${checkForNull(unseatingHeadCompressiveStress).toFixed(2)} Mpa`}
\r\n \r\n
\r\n
\r\n \r\n {'Allowable Tensile Stress'}
\r\n \r\n \r\n =
\r\n \r\n \r\n {`${this.tensileStressCalc().toFixed(2)} Mpa`}
\r\n \r\n \r\n this.tensileStressCalc() ? 'error' : ''} `}>{unseatingHeadCompressiveStress > this.tensileStressCalc() ? 'STRESS TOO HIGH' : ''}
\r\n \r\n
\r\n\r\n
\r\n \r\n {'UNSEATING HEAD COMPRESSIVE STRESS'}
\r\n \r\n
\r\n
\r\n \r\n {'Compressive Stress'}
\r\n \r\n \r\n =
\r\n \r\n \r\n {'(Gate Width2 x Maximum Head x 9810 x W )/8/S1'}
\r\n \r\n
\r\n
\r\n \r\n {/* {'Allowable Tensile Stress'}
*/}\r\n \r\n \r\n =
\r\n \r\n \r\n {`${checkForNull(unseatingHeadTensileStress).toFixed(2)} Mpa`}
\r\n \r\n
\r\n
\r\n \r\n {'Allowable compressive stress'}
\r\n \r\n \r\n =
\r\n \r\n \r\n {`${this.compressiveStressCalc().toFixed(2)} Mpa`}
\r\n \r\n \r\n this.compressiveStressCalc() ? 'error' : ''} `}>{unseatingHeadTensileStress > this.compressiveStressCalc() ? 'STRESS TOO HIGH' : ''}
\r\n \r\n
\r\n\r\n
\r\n \r\n {'BEAM DEFLECTION AT MAXIMUM HEAD'}
\r\n \r\n
\r\n
\r\n \r\n {'Deflection'}
\r\n \r\n \r\n =
\r\n \r\n \r\n {'(Head on lowest rib x 9810 x beam width x5x width4 x 10^6/(384xExI)'}
\r\n \r\n
\r\n
\r\n \r\n {/* {'Allowable compressive stress'}
*/}\r\n \r\n \r\n =
\r\n \r\n \r\n {`${checkForNull(beamDeflectionMaxHead).toFixed(2)} mm`}
\r\n \r\n
\r\n
\r\n \r\n {'Allowable Deflection'}
\r\n \r\n \r\n =
\r\n \r\n \r\n {'Lesser value of span / 720 and 1.6 mm'}
\r\n \r\n
\r\n
\r\n \r\n {/* {'Allowable compressive stress'}
*/}\r\n \r\n \r\n =
\r\n \r\n \r\n {`${checkForNull(actualDefLesser).toFixed(2)} mm`}
\r\n \r\n
\r\n
\r\n \r\n actualDefLesser ? 'error' : ''} `}>{beamDeflectionMaxHead > actualDefLesser ? 'DEFLECTION TOO HIGH' : 'The actual deflection is less than the permissible deflection, Hence the design is safe.'}
\r\n \r\n
\r\n\r\n
\r\n \r\n \r\n 4). BOTTOM RIB STRENGTH AND DEFLECTION: -\r\n
\r\n \r\n
\r\n
\r\n \r\n \r\n
The maximum stresses and the deflection are calculated based on the specified design head. The beam is simply supported with a uniform water load at the bottom rib.
\r\n
\r\n
\r\n \r\n \r\n
The \"beam\" is a composite shape made up of a plate and a trapezoidal rib. The anisotropic properties of cast iron are considered. See the sketch for dimensions.
\r\n
\r\n {horizontalSniffersSelect === 'A' &&\r\n <>\r\n
\r\n \r\n C FLAT PLATE = T / 2\r\n \r\n
\r\n
\r\n \r\n C TRAPEZOID = T + H - H(2B + A)/(3 (B + A)\r\n \r\n
\r\n
\r\n \r\n C COMP = (C TRAPEZOID x A TRAPEZOID + C FLAT PLATE x A FLAT PLATE)/ TOTAL AREA\r\n \r\n
\r\n
\r\n \r\n I FLAT PLATE = T x W3/12\r\n \r\n
\r\n
\r\n \r\n I TRAPEZOID = H3(B2 + 4 x B x A + A2)/(36 (B + A)\r\n \r\n
\r\n
\r\n \r\n S1 = I COMP / C COMP\r\n \r\n
\r\n
\r\n \r\n S2 = I COMP / (H + T - C COMP )\r\n \r\n
\r\n
\r\n \r\n I COMP DEFLECTION = (C COMP -C FLAT PLATE)2 x A FLAT PLATE) + I TRAPEZOID + I FLAT PLATE\r\n \r\n
\r\n
\r\n \r\n I COMP = (C TRAPEZOID - C COMP )2 x A TRAPEZOID+((C COMP-C FLAT PLATE)2 x A FLAT PLATE) + I TRAPEZOID + I FLAT PLATE\r\n \r\n
\r\n \r\n }\r\n\r\n {horizontalSniffersSelect === 'B' &&\r\n <>\r\n
\r\n \r\n C FLAT PLATE = T / 2\r\n \r\n
\r\n {/*
\r\n \r\n C TRAPEZOID = T + H - H(2B + A)/(3 (B + A)\r\n \r\n
*/}\r\n
\r\n \r\n C COMP = (C FLAT PLATE (1) x A FLAT PLATE (1) + C FLAT PLATE (2) x A FLAT PLATE (2) + C FLAT PLATE (3) x A FLAT PLATE (3))/ TOTAL AREA\r\n \r\n
\r\n
\r\n \r\n I FLAT PLATE = T x W3/12\r\n \r\n
\r\n
\r\n \r\n S1 = I COMP / C COMP\r\n \r\n
\r\n
\r\n \r\n S2 = I COMP / (H + T - C COMP )\r\n \r\n
\r\n
\r\n \r\n I COMP DEFLECTION = (C COMP - C FLAT PLATE)2 x A FLAT PLATE) + I FLAT PLATE\r\n \r\n
\r\n
\r\n \r\n I COMP = (C FLAT PLATE (1) - C COMP )2 x A FLAT PLATE (1) + (C FLAT PLATE (2) - C COMP )2 x A FLAT PLATE (2) + (C COMP - C FLAT PLATE (3))2 x A FLAT PLATE (3) + I FLAT PLATE (1) + I FLAT PLATE (2) + I FLAT PLATE (3)\r\n \r\n
\r\n \r\n }\r\n\r\n
\r\n \r\n \r\n
\r\n {selectHorizontalRib === 'WITHOUT STEM HOLE' ?\r\n <>
\r\n
:\r\n <>
\r\n
\r\n }\r\n
\r\n
{'SECTION No: A'}
\r\n
\r\n
\r\n {selectHorizontalRib === 'WITHOUT STEM HOLE' ?\r\n <>
\r\n
:\r\n <>
\r\n
\r\n }\r\n
\r\n
{'SECTION No: B'}
\r\n
\r\n
\r\n \r\n {'We consider section for Horizontal Stiffeners ='}\r\n \r\n {/* \r\n {' = '}\r\n */}\r\n \r\n \r\n \r\n \r\n {''}\r\n \r\n
\r\n\r\n {horizontalSniffersSelect === 'A' &&\r\n <>\r\n {/*
\r\n <>\r\n \r\n {'Where,'}\r\n \r\n \r\n {' ='}\r\n \r\n {'Considered'}\r\n \r\n {'Recommended'}\r\n \r\n \r\n
*/}\r\n\r\n
\r\n <>\r\n \r\n {'RIB THICKNESS-1'}\r\n \r\n \r\n {'A ='}\r\n \r\n \r\n {`${checkForNull(ribThickness4A) - 2} mm`}\r\n \r\n\r\n \r\n
\r\n\r\n
\r\n <>\r\n \r\n {'RIB THICKNESS-2'}\r\n \r\n \r\n {'B ='}\r\n \r\n \r\n {`${checkForNull(ribThickness4A)} mm`}\r\n \r\n\r\n \r\n
\r\n\r\n
\r\n <>\r\n \r\n {'RIB HEIGHT'}\r\n \r\n \r\n {'H ='}\r\n \r\n {`${checkForNull(fieldObj.hs3)} mm`}\r\n\r\n \r\n
\r\n\r\n\r\n\r\n
\r\n <>\r\n \r\n {'RIB DISTANCE'}\r\n \r\n \r\n {'T ='}\r\n \r\n {`${checkForNull(ribDistanceL / 2).toFixed(2)} mm`}\r\n \r\n
\r\n\r\n
\r\n <>\r\n \r\n {'SHUTTER THICKNESS'}\r\n \r\n \r\n {' ='}\r\n \r\n {`${checkForNull(fieldObj.hs4).toFixed(2)} mm`}\r\n\r\n \r\n
\r\n \r\n }\r\n\r\n {horizontalSniffersSelect === 'B' &&\r\n <>\r\n {/*
\r\n <>\r\n \r\n \r\n \r\n \r\n \r\n \r\n \r\n \r\n \r\n {'Where,'}\r\n \r\n \r\n {' ='}\r\n \r\n {'Considered'}\r\n \r\n {'Recommended'}\r\n \r\n \r\n
*/}\r\n\r\n
\r\n <>\r\n \r\n \r\n \r\n \r\n \r\n \r\n \r\n \r\n \r\n {'WIDTH OF FLANGE'}\r\n \r\n \r\n {'b ='}\r\n \r\n {`${checkForNull(fieldObj.hs6)} mm`} \r\n\r\n \r\n
\r\n\r\n
\r\n <>\r\n \r\n \r\n \r\n \r\n \r\n \r\n \r\n \r\n \r\n {'RIB THICKNESS FOR FLANGE'}\r\n \r\n \r\n {'t1 ='}\r\n \r\n {`${nextEvenNo(fieldObj.hs8 * 1.5)} mm`}\r\n\r\n \r\n
\r\n\r\n
\r\n <>\r\n \r\n \r\n \r\n \r\n \r\n \r\n \r\n \r\n \r\n {'RIB THICKNESS FOR WEB'}\r\n \r\n \r\n {'t2 ='}\r\n \r\n {`${nextEvenNo(fieldObj.hs8 * 1.5)} mm`}\r\n\r\n \r\n
\r\n\r\n\r\n\r\n
\r\n <>\r\n \r\n \r\n \r\n \r\n \r\n \r\n \r\n \r\n \r\n {'SHUTTER THICKNESS'}\r\n \r\n \r\n {'t3 ='}\r\n \r\n {`${fieldObj.hs9} mm`}\r\n\r\n \r\n
\r\n\r\n
\r\n <>\r\n \r\n \r\n \r\n \r\n \r\n \r\n \r\n \r\n \r\n {'RIB HEIGHT (WEB)'}\r\n \r\n \r\n {'d ='}\r\n \r\n {`${fieldObj.hs10} mm`}\r\n\r\n \r\n
\r\n\r\n
\r\n <>\r\n \r\n \r\n \r\n \r\n \r\n \r\n \r\n \r\n \r\n {'RIB DISTANCE'}\r\n \r\n \r\n {' ='}\r\n \r\n {`${((fieldObjShutter.height / fieldObj.hs11) / 2).toFixed(2)} mm`}\r\n\r\n \r\n
\r\n\r\n \r\n }\r\n\r\n\r\n\r\n {horizontalSniffersSelect === 'A' &&\r\n
\r\n \r\n | \r\n A | \r\n B | \r\n H | \r\n W | \r\n T | \r\n H2 | \r\n H3 | \r\n Area | \r\n \"C\" | \r\n \"I\" | \r\n
\r\n \r\n | Plate | \r\n - | \r\n - | \r\n - | \r\n {checkForNull(ribDistanceL / 2).toFixed(2)} | \r\n {checkForNull(fieldObj.hs4).toFixed(2)} | \r\n - | \r\n - | \r\n {checkForNull((Number(ribDistanceL) / 2) * Number(fieldObj.hs4)).toFixed(2)} | \r\n {checkForNull(Number(fieldObj.hs4) / 2).toFixed(2)} | \r\n {checkForNull((Number(ribDistanceL) / 2) * Math.pow(Number(fieldObj.hs4), 3) / 12).toFixed(2)} | \r\n
\r\n \r\n | Rib | \r\n {checkForNull(ribThickness4A - 2).toFixed(2)} | \r\n {checkForNull(ribThickness4A).toFixed(2)} | \r\n {checkForNull(fieldObj.hs3).toFixed(2)} | \r\n - | \r\n - | \r\n - | \r\n - | \r\n {checkForNull(((Number(ribThickness4A) - 2) + Number(ribThickness4A)) / 2 * Number(fieldObj.hs3)).toFixed(2)} | \r\n {checkForNull(tableVal2A_10_3).toFixed(2)} | \r\n {checkForNull(tableVal2A_11_3).toFixed(1)} | \r\n
\r\n \r\n | - | \r\n - | \r\n - | \r\n - | \r\n - | \r\n - | \r\n - | \r\n - | \r\n - | \r\n - | \r\n - | \r\n
\r\n \r\n | Handling/Stem hole* | \r\n {checkForNull(tableVal2A_2_5).toFixed(2)} | \r\n {checkForNull(tableVal2A_3_5).toFixed(2)} | \r\n - | \r\n - | \r\n - | \r\n {checkForNull(tableVal2A_7_5).toFixed(2)} | \r\n {checkForNull(tableVal2A_8_5).toFixed(2)} | \r\n {checkForNull(tableVal2A_9_5).toFixed(2)} | \r\n {checkForNull(tableVal2A_10_5).toFixed(2)} | \r\n {checkForNull(tableVal2A_11_5).toFixed(2)} | \r\n
\r\n \r\n | Composite | \r\n | \r\n | \r\n | \r\n | \r\n | \r\n | \r\n | \r\n {checkForNull(tableVal2A_9_6).toFixed(2)} | \r\n {checkForNull(tableVal2A_10_6).toFixed(2)} | \r\n {checkForNull(tableVal2A_11_6).toFixed(2)} | \r\n
\r\n
\r\n }\r\n\r\n {horizontalSniffersSelect === 'B' &&\r\n
\r\n \r\n | \r\n t1 | \r\n t2 | \r\n d | \r\n B | \r\n t3 | \r\n d1 | \r\n d2 | \r\n Area | \r\n \"C\" | \r\n \"I\" | \r\n
\r\n \r\n | Plate | \r\n - | \r\n - | \r\n - | \r\n {checkForNull(tableVal2B_5_2).toFixed(2)} | \r\n {checkForNull(tableVal2B_6_2).toFixed(2)} | \r\n - | \r\n - | \r\n {checkForNull(tableVal2B_9_2).toFixed(2)} | \r\n {checkForNull(tableVal2B_10_2).toFixed(2)} | \r\n {checkForNull(tableVal2B_11_2).toFixed(2)} | \r\n
\r\n \r\n | Rib-Web | \r\n - | \r\n {checkForNull(tableVal2B_3_3).toFixed(2)} | \r\n {checkForNull(tableVal2B_4_3).toFixed(2)} | \r\n - | \r\n - | \r\n - | \r\n - | \r\n {checkForNull(tableVal2B_9_3).toFixed(2)} | \r\n {checkForNull(tableVal2B_10_3).toFixed(2)} | \r\n {checkForNull(tableVal2B_11_3).toFixed(1)} | \r\n
\r\n \r\n | Rib-flange | \r\n {checkForNull(tableVal2B_2_4).toFixed(2)} | \r\n - | \r\n - | \r\n {checkForNull(tableVal2B_5_4).toFixed(2)} | \r\n - | \r\n - | \r\n - | \r\n {checkForNull(tableVal2B_9_4).toFixed(2)} | \r\n {checkForNull(tableVal2B_10_4).toFixed(2)} | \r\n {checkForNull(tableVal2B_11_4).toFixed(2)} | \r\n
\r\n \r\n | Handling/Stem hole | \r\n - | \r\n {checkForNull(tableVal2B_3_5).toFixed(2)} | \r\n - | \r\n - | \r\n - | \r\n {checkForNull(tableVal2B_7_5).toFixed(2)} | \r\n {checkForNull(tableVal2B_8_5).toFixed(2)} | \r\n {checkForNull(tableVal2B_9_5).toFixed(2)} | \r\n {checkForNull(tableVal2B_10_5).toFixed(2)} | \r\n {checkForNull(tableVal2B_11_5).toFixed(2)} | \r\n
\r\n \r\n | Composite | \r\n | \r\n | \r\n | \r\n | \r\n | \r\n | \r\n | \r\n {checkForNull(tableVal2B_9_6).toFixed(2)} | \r\n {checkForNull(tableVal2B_10_6).toFixed(2)} | \r\n {checkForNull(tableVal2B_11_6).toFixed(1)} | \r\n
\r\n
\r\n }\r\n\r\n\r\n
\r\n \r\n * The stem hole or handling hole is a very small part of the overall beam. Although stresses are calculated based on the properties through that section, the value for Moment of Inertia for deflection is based on a solid member.\r\n \r\n
\r\n
\r\n \r\n Therefore, Moment of Inertia based on a section member
\r\n \r\n \r\n {' I ='}\r\n \r\n \r\n {checkForNull(section2Val1).toFixed(2)}\r\n \r\n
\r\n\r\n
\r\n \r\n Moment of Inertia based on a solid member
\r\n \r\n \r\n {' Is ='}\r\n \r\n \r\n {checkForNull(section2Val2).toFixed(2)}\r\n \r\n
\r\n\r\n
\r\n \r\n For Tensile Seating and Compressive Unseating
\r\n \r\n \r\n {' S1 ='}\r\n \r\n \r\n {checkForNull(tensileSeatingTable2).toFixed(2)}\r\n \r\n
\r\n\r\n
\r\n \r\n For Compressive Seating and Tensile Unseating
\r\n \r\n \r\n {' S2 ='}\r\n \r\n \r\n {checkForNull(compressiveSeatingTable2).toFixed(2)}\r\n \r\n
\r\n\r\n
\r\n \r\n The compressive strength and modulus of elasticity are typical values taken from ASM Metals Handbook
\r\n \r\n
\r\n\r\n
\r\n \r\n {'SEATING HEAD TENSILE STRESS'}
\r\n \r\n
\r\n
\r\n \r\n {'Tensile Stress'}
\r\n \r\n \r\n {`=`}
\r\n \r\n \r\n {'Gate Width2 x Maximum Head x 9810 x W )/8/S1'}
\r\n \r\n
\r\n
\r\n \r\n {/* {'Allowable Tensile Stress'}
*/}\r\n \r\n \r\n {`=`}
\r\n \r\n \r\n {`${checkForNull(seatingHeadTensileStressTable2).toFixed(2)} Mpa`}
\r\n \r\n
\r\n
\r\n \r\n {'Allowable Tensile Stress'}
\r\n \r\n \r\n {`=`}
\r\n \r\n \r\n {`${checkForNull(this.tensileStressCalc()).toFixed(2)} Mpa`}
\r\n \r\n \r\n this.tensileStressCalc() ? 'error' : ''} `}>{seatingHeadTensileStressTable2 > this.tensileStressCalc() ? 'STRESS TOO HIGH' : ''}
\r\n \r\n
\r\n {/* // Sytart here */}\r\n
\r\n \r\n {'SEATING HEAD COMPRESSIVE STRESS'}
\r\n \r\n
\r\n
\r\n \r\n {'Compressive Stress'}
\r\n \r\n \r\n {`=`}
\r\n \r\n \r\n {'Gate Width2 x Maximum Head x 9810 x W )/8/S2'}
\r\n \r\n
\r\n
\r\n \r\n {/* {'Allowable Tensile Stress'}
*/}\r\n \r\n \r\n {`=`}
\r\n \r\n \r\n {`${checkForNull(seatingHeadCompressiveStressTable2).toFixed(2)} Mpa`}
\r\n \r\n
\r\n
\r\n \r\n {'Allowable compressive stress'}
\r\n \r\n \r\n {`=`}
\r\n \r\n \r\n {`${this.compressiveStressCalc().toFixed(2)} Mpa`}
\r\n \r\n \r\n this.compressiveStressCalc() ? 'error' : ''} `}>{seatingHeadCompressiveStressTable2 > this.compressiveStressCalc() ? 'STRESS TOO HIGH' : ''}
\r\n \r\n
\r\n\r\n
\r\n \r\n {'UNSEATING HEAD TENSILE STRESS'}
\r\n \r\n
\r\n
\r\n \r\n {'Tensile Stress'}
\r\n \r\n \r\n {`=`}
\r\n \r\n \r\n {'(Gate Width2 x Maximum Head x 9810 x W )/8/S2'}
\r\n \r\n
\r\n
\r\n \r\n \r\n \r\n {`=`}
\r\n \r\n \r\n {`${checkForNull(unseatingHeadCompressiveStressTable2).toFixed(2)} Mpa`}
\r\n \r\n
\r\n
\r\n \r\n {'Allowable Tensile Stress'}
\r\n \r\n \r\n {`=`}
\r\n \r\n \r\n {`${checkForNull(this.tensileStressCalc()).toFixed(2)} Mpa`}
\r\n \r\n \r\n this.tensileStressCalc() ? 'error' : ''} `}>{unseatingHeadCompressiveStressTable2 > this.tensileStressCalc() ? 'STRESS TOO HIGH' : ''}
\r\n \r\n
\r\n\r\n
\r\n \r\n {'UNSEATING HEAD COMPRESSIVE STRESS'}
\r\n \r\n
\r\n
\r\n \r\n {'Compressive Stress'}
\r\n \r\n \r\n {`=`}
\r\n \r\n \r\n {'(Gate Width2 x Maximum Head x 9810 x W )/8/S1'}
\r\n \r\n
\r\n
\r\n \r\n {/* {'Allowable Tensile Stress'}
*/}\r\n \r\n \r\n {`=`}
\r\n \r\n \r\n {`${checkForNull(unseatingHeadTensileStressTable2).toFixed(2)} Mpa`}
\r\n \r\n
\r\n
\r\n \r\n {'Allowable compressive stress'}
\r\n \r\n \r\n {`=`}
\r\n \r\n \r\n {`${checkForNull(this.compressiveStressCalc()).toFixed(2)} Mpa`}
\r\n \r\n \r\n this.compressiveStressCalc() ? 'error' : ''} `}>{unseatingHeadTensileStressTable2 > this.compressiveStressCalc() ? 'STRESS TOO HIGH' : ''}
\r\n \r\n
\r\n\r\n
\r\n \r\n {'BEAM DEFLECTION AT MAXIMUM HEAD'}
\r\n \r\n
\r\n
\r\n \r\n {'Deflection'}
\r\n \r\n \r\n {`=`}
\r\n \r\n \r\n {'(Head on lowest rib x 9810 x beam width x5x width4 x 10^6/(384xExI)'}
\r\n \r\n
\r\n
\r\n \r\n {/* {'Allowable compressive stress'}
*/}\r\n \r\n \r\n {`=`}
\r\n \r\n \r\n {`${checkForNull(beamDeflectionMaxHeadTable2).toFixed(2)} mm`}
\r\n \r\n
\r\n
\r\n \r\n {'Allowable Deflection'}
\r\n \r\n \r\n {`=`}
\r\n \r\n \r\n {'Lesser value of span / 720 and 1.6 mm'}
\r\n \r\n
\r\n
\r\n \r\n {/* {'Allowable compressive stress'}
*/}\r\n \r\n \r\n {`=`}
\r\n \r\n \r\n {`${checkForNull(actualDefLesserTabl2).toFixed(2)} mm`}
\r\n \r\n
\r\n
\r\n \r\n actualDefLesserTabl2 ? 'error' : ''} `}>{beamDeflectionMaxHeadTable2 > actualDefLesserTabl2 ? 'DEFLECTION TOO HIGH' : 'The actual deflection is less than the permissible deflection, Hence the design is safe.'}
\r\n \r\n
\r\n\r\n\r\n\r\n\r\n
\r\n \r\n \r\n 5). VERTICAL RIB STRENGTH AND DEFLECTION: -\r\n
\r\n \r\n
\r\n
\r\n \r\n \r\n
The maximum stresses and the deflection are calculated based on the specified design head. The beam is simply supported with a uniform water load at the bottom rib.
\r\n
\r\n
\r\n \r\n \r\n
The \"beam\" is a composite shape made up of a plate and a trapezoidal rib. The anisotropic properties of cast iron are considered. See the sketch for dimensions.
\r\n
\r\n {/* {horizontalSniffersSelect == 'A' && */}\r\n <>\r\n {/*
\r\n \r\n C FLAT PLATE = T / 2\r\n \r\n
*/}\r\n
\r\n \r\n \r\n \r\n C TRAPEZOID = T + H - H(2B + A)/(3 (B + A)\r\n \r\n\r\n \r\n C COMP = (C TRAPEZOID x A TRAPEZOID + C FLAT PLATE x A FLAT PLATE)/ TOTAL AREA\r\n \r\n\r\n \r\n I FLAT PLATE = T x W3/12\r\n \r\n\r\n \r\n I TRAPEZOID = H3(B2 + 4 x B x A + A2)/(36 (B + A)\r\n \r\n\r\n \r\n S1 = I COMP / C COMP\r\n \r\n\r\n \r\n S2 = I COMP / (H + T - C COMP )\r\n \r\n \r\n I COMP DEFLECTION = (C COMP -C FLAT PLATE)2 x A FLAT PLATE) + I TRAPEZOID + I FLAT PLATE\r\n \r\n \r\n I COMP = (C TRAPEZOID - C COMP )2 x A TRAPEZOID+((C COMP-C FLAT PLATE)2 x A FLAT PLATE) + I TRAPEZOID + I FLAT PLATE\r\n \r\n
\r\n \r\n \r\n \r\n \r\n \r\n
\r\n
})
\r\n {/*
*/}\r\n
\r\n
{'SECTION No: A'}
\r\n
\r\n \r\n
\r\n \r\n {/* } */}\r\n
\r\n \r\n {'We consider section for Vertical Stiffeners'}* = \r\n \r\n {/* \r\n {' = '}\r\n */}\r\n \r\n \r\n \r\n \r\n {''}\r\n \r\n\r\n
\r\n <>\r\n
\r\n <>\r\n \r\n {'RIB THICKNESS-1'} A =
\r\n \r\n\r\n \r\n \r\n \r\n \r\n {`${Number(this.ribThickness2A_5()) - 2} mm`}\r\n \r\n \r\n
\r\n\r\n
\r\n <>\r\n \r\n {'RIB THICKNESS-2'}B =
\r\n \r\n\r\n \r\n \r\n \r\n \r\n {`${this.ribThickness2A_5()} mm`}\r\n \r\n \r\n
\r\n\r\n
\r\n <>\r\n \r\n {'RIB HEIGHT'}H =
\r\n \r\n\r\n \r\n \r\n\r\n \r\n \r\n {`${this.ribHeightA()}`} {\" mm\"}\r\n \r\n \r\n
\r\n\r\n\r\n\r\n
\r\n <>\r\n \r\n {'SHUTTER THICKNESS'}T =
\r\n \r\n \r\n {`${checkForNull(shutterThicknessSection5)} ${this.ribHeightA_5() === '' ? ' mm' : ''}`}\r\n \r\n \r\n {`${(this.ribHeightA_5())} ${this.ribHeightA_5() === '' ? '' : 'mm'}`}\r\n \r\n \r\n
\r\n\r\n
\r\n <>\r\n \r\n {'NO OF VERT RIBS SPACING'}=
\r\n \r\n \r\n \r\n \r\n \r\n {`${this.noOfHorizontalRibsSpacingCalcA_5()} Nos`}\r\n \r\n \r\n
\r\n\r\n
\r\n <>\r\n \r\n {'RIB DISTANCE'}W =
\r\n \r\n {`${checkForNull(this.returnFieldInteger('width') / fieldObj.hs15).toFixed(2)} mm`}\r\n\r\n \r\n
\r\n \r\n {/* } */}\r\n
\r\n \r\n \r\n TYPICAL VERTICAL RIB STRENGTH AND DEFLECTION\r\n
\r\n \r\n
\r\n
\r\n \r\n FOR SECTION A\r\n \r\n
\r\n {/* {horizontalSniffersSelect == 'A' && */}\r\n
\r\n \r\n | \r\n A | \r\n B | \r\n H | \r\n W | \r\n T | \r\n H2 | \r\n H3 | \r\n area | \r\n \"C\" | \r\n \"I\" | \r\n
\r\n \r\n | Plate | \r\n - | \r\n - | \r\n - | \r\n {checkForNull(tableVal5_5_2).toFixed(2)} | \r\n {checkForNull(tableVal5_6_2).toFixed(2)} | \r\n - | \r\n - | \r\n {checkForNull(tableVal5_9_2).toFixed(2)} | \r\n {checkForNull(tableVal5_10_2).toFixed(2)} | \r\n {checkForNull(tableVal5_11_2).toFixed(2)} | \r\n
\r\n \r\n | Rib | \r\n {checkForNull(tableVal5_2_3).toFixed(2)} | \r\n {checkForNull(tableVal5_3_3).toFixed(2)} | \r\n {checkForNull(tableVal5_4_3).toFixed(2)} | \r\n - | \r\n - | \r\n - | \r\n - | \r\n {checkForNull(tableVal5_9_3).toFixed(2)} | \r\n {checkForNull(tableVal5_10_3).toFixed(2)} | \r\n {checkForNull(tableVal5_11_3).toFixed(2)} | \r\n
\r\n \r\n | - | \r\n - | \r\n - | \r\n - | \r\n - | \r\n - | \r\n - | \r\n - | \r\n - | \r\n - | \r\n - | \r\n
\r\n \r\n | - | \r\n - | \r\n - | \r\n - | \r\n - | \r\n - | \r\n - | \r\n - | \r\n - | \r\n - | \r\n - | \r\n
\r\n \r\n | Composite | \r\n | \r\n | \r\n | \r\n | \r\n | \r\n | \r\n | \r\n {checkForNull(tableVal5_9_6).toFixed(2)} | \r\n {checkForNull(tableVal5_10_6).toFixed(2)} | \r\n {checkForNull(tableVal5_11_6).toFixed(2)} | \r\n
\r\n
\r\n {/* } */}\r\n\r\n
\r\n \r\n {'The \"beam\" is a composite shape made up of a plate and a trapezoidal rib. The anisotropic properties of cast iron are considered. See the sketch for dimensions.'}
\r\n \r\n
\r\n
\r\n \r\n {'Therefore, Moment of Inertia based on a section member'}
\r\n \r\n \r\n {`I =`}
\r\n \r\n \r\n {checkForNull(tableVal5_11_6).toFixed(2)}
\r\n \r\n
\r\n\r\n
\r\n \r\n {'Moment of Inertia based on a solid member'}
\r\n \r\n \r\n {`Is =`}
\r\n \r\n \r\n {checkForNull(tableVal5_11_6).toFixed(2)}
\r\n \r\n
\r\n\r\n
\r\n \r\n {'For Tensile Seating and Compressive Unseating'}
\r\n \r\n \r\n {`S1 =`}
\r\n \r\n \r\n {checkForNull(tableVal5_11_6 / tableVal5_10_6).toFixed(2)}
\r\n \r\n
\r\n\r\n
\r\n \r\n {'For Compressive Seating and Tensile Unseating'}
\r\n \r\n \r\n {`S2 =`}
\r\n \r\n \r\n {checkForNull(Number(tableVal5_11_6) / (Number(tableVal5_4_3) + Number(tableVal5_6_2) - Number(tableVal5_10_6))).toFixed(2)}
\r\n \r\n
\r\n\r\n
\r\n \r\n {'The compressive strength and modulus of elasticity are typical values taken from ASM Metals Handbook'}
\r\n \r\n
\r\n
\r\n \r\n {'SEATING HEAD TENSILE STRESS'}
\r\n \r\n
\r\n
\r\n \r\n {'Tensile Stress'}
\r\n \r\n \r\n {`=`}
\r\n \r\n \r\n {'Gate Width2 x Maximum Head x 9810 x W )/8/S1'}
\r\n \r\n
\r\n
\r\n \r\n {/* {'Allowable Tensile Stress'}
*/}\r\n \r\n \r\n {`=`}
\r\n \r\n \r\n {`${checkForNull(seatingHeadTensileStress_5).toFixed(0)} Mpa`}
\r\n \r\n
\r\n
\r\n \r\n {'Allowable Tensile Stress'}
\r\n \r\n \r\n {`=`}
\r\n \r\n \r\n {`${checkForNull(this.tensileStressCalc()).toFixed(0)} Mpa`}
\r\n \r\n \r\n this.tensileStressCalc() ? 'error' : ''} `}>{checkForNull(seatingHeadTensileStress_5) > this.tensileStressCalc() ? 'STRESS TOO HIGH' : ''}
\r\n \r\n
\r\n {/* // Sytart here */}\r\n
\r\n \r\n {'SEATING HEAD COMPRESSIVE STRESS'}
\r\n \r\n
\r\n
\r\n \r\n {'Compressive Stress'}
\r\n \r\n \r\n {`=`}
\r\n \r\n \r\n {'Gate Width2 x Maximum Head x 9810 x W )/8/S2'}
\r\n \r\n
\r\n
\r\n \r\n {/* {'Allowable Tensile Stress'}
*/}\r\n \r\n \r\n {`=`}
\r\n \r\n \r\n {`${checkForNull(seatingHeadCompressiveStress_5).toFixed(0)} Mpa`}
\r\n \r\n
\r\n
\r\n \r\n {'Allowable compressive stress'}
\r\n \r\n \r\n {`=`}
\r\n \r\n \r\n {`${this.compressiveStressCalc().toFixed(0)} Mpa`}
\r\n \r\n \r\n this.compressiveStressCalc() ? 'error' : ''} `}>{checkForNull(seatingHeadCompressiveStress_5) > this.compressiveStressCalc() ? 'STRESS TOO HIGH' : ''}
\r\n \r\n
\r\n\r\n
\r\n \r\n {'UNSEATING HEAD TENSILE STRESS'}
\r\n \r\n
\r\n
\r\n \r\n {'Tensile Stress'}
\r\n \r\n \r\n {`=`}
\r\n \r\n \r\n {'(Gate Width2 x Maximum Head x 9810 x W )/8/S2'}
\r\n \r\n
\r\n
\r\n \r\n \r\n \r\n {`=`}
\r\n \r\n \r\n {`${checkForNull(unseatingHeadCompressiveStress_5).toFixed(0)} Mpa`}
\r\n \r\n
\r\n
\r\n \r\n {'Allowable Tensile Stress'}
\r\n \r\n \r\n {`=`}
\r\n \r\n \r\n {`${this.tensileStressCalc().toFixed(0)} Mpa`}
\r\n \r\n \r\n this.tensileStressCalc() ? 'error' : ''} `}>{checkForNull(unseatingHeadCompressiveStress_5) > this.tensileStressCalc() ? 'STRESS TOO HIGH' : ''}
\r\n \r\n
\r\n\r\n
\r\n \r\n {'UNSEATING HEAD COMPRESSIVE STRESS'}
\r\n \r\n
\r\n
\r\n \r\n {'Compressive Stress'}
\r\n \r\n \r\n {`=`}
\r\n \r\n \r\n {'(Gate Width2 x Maximum Head x 9810 x W )/8/S1'}
\r\n \r\n
\r\n
\r\n \r\n {/* {'Allowable Tensile Stress'}
*/}\r\n \r\n \r\n {`=`}
\r\n \r\n \r\n {`${checkForNull(unseatingHeadTensileStress_5).toFixed(0)} Mpa`}
\r\n \r\n
\r\n
\r\n \r\n {'Allowable compressive stress'}
\r\n \r\n \r\n {`=`}
\r\n \r\n \r\n {`${this.compressiveStressCalc().toFixed(0)} Mpa`}
\r\n \r\n \r\n this.compressiveStressCalc() ? 'error' : ''} `}>{checkForNull(unseatingHeadTensileStress_5) > this.compressiveStressCalc() ? 'STRESS TOO HIGH' : ''}
\r\n \r\n
\r\n\r\n
\r\n \r\n {'BEAM DEFLECTION AT MAXIMUM HEAD'}
\r\n \r\n
\r\n
\r\n \r\n {'Deflection'}
\r\n \r\n \r\n {`=`}
\r\n \r\n \r\n {'(Head on lowest rib x 9810 x beam width x5x width4 x 10^6/(384xExI)'}
\r\n \r\n
\r\n
\r\n \r\n {/* {'Allowable compressive stress'}
*/}\r\n \r\n \r\n {`=`}
\r\n \r\n \r\n {`${checkForNull(beamDeflectionMaxHead_5).toFixed(4)} mm`}
\r\n \r\n
\r\n
\r\n \r\n {'Allowable Deflection'}
\r\n \r\n \r\n {`=`}
\r\n \r\n \r\n {'Lesser value of span / 720 and 1.6 mm'}
\r\n \r\n
\r\n
\r\n \r\n {/* {'Allowable compressive stress'}
*/}\r\n \r\n \r\n {`=`}
\r\n \r\n \r\n {`${checkForNull(actualDefLesser_5).toFixed(2)} mm`}
\r\n \r\n
\r\n
\r\n \r\n checkForNull(actualDefLesser_5) ? 'error' : ''} `}>{checkForNull(beamDeflectionMaxHead_5) > checkForNull(actualDefLesser_5) ? 'DEFLECTION TOO HIGH' : 'The actual deflection is less than the permissible deflection, Hence the design is safe.'}
\r\n \r\n
\r\n
})
\r\n \r\n })
\r\n })
\r\n