structural steelTonnage CalculationsSteel Density7800kg/m3Area10x880m2lengthnos.Main Rafter beam(m)a610x229x113.1kg/mUB1022262bxxkg/m0Main TrussTopxxkg/mUB0Bottomxxkg/m0Diagonalxxkg/m0Verticalxxkg/m0Purlinsa200x75x12.7kg/mLipped C8111118bxxkg/m0Total3380kgTonnage42kg/m2

Progressive CollapseColumn ReinforcementColumn dimensions400x1000Steel Stressfy =460N/mm2fcu =40N/mm2Critical Storey LoadN =7500kNDL =336kNLL =106kNN =0.4fcuAc + 0.75fyAscN = 1.4DL+1.6LL =640kNNAc =6400kNProvide AscVertical TiesAsc =6377mm2AscAsc = N/(0.87*fy) =1599mm20.4%Required20.3T20(mm2)% steel21T2065981.6%Min. AscAsc = (0.4%Ac) =1600mm2Required AscAsc =1600mm2AscRequired2.0T32(mm2)% steel2T3216090.4%Provide4T3232170.8%

Wall SummaryProposed 30 Storey Condominium Housing Development at Newton/Lincoln RoadSummary of Wall ReinforcementsReinf., Asc at Stories ConcernedBmt to 5th6th to 10th6th to 10th11th to 15th16th to 20th21st to 25th25th to 30thAscAscAscAscAscAscAscS/No.TypeBLEZCZEZCZEZCZEZCZEZCZEZCZEZCZEZCZ1W1300380010001800T25-200T13-200T16-200T13-200dittodittodittodittodittodittodittodittodittoditto2W2300380010001800T25-200T13-200T16-200T13-200dittodittodittodittodittodittodittodittodittoditto3W330025005001500T16-200T13-200T13-200T13-200dittodittodittodittodittodittodittodittodittoditto4W430020005001000T25-150T13-200T16-200T13-200dittodittodittodittodittodittodittodittodittoditto5W5400330010001300T32-125T25-175T20-200T16-200T16-200T13-200dittodittodittodittodittodittodittodittoNotes1All Distribution reinforcement(horizontal) to be T13-2002Concrete grade35 N/mm23Reinforcement grade460 N/mm24All Dimensions to be in mm

Wall DesignST Architects & Engineers Pte Ltd.DESIGN CALCULATIONSPage No :Project :NEWTONStructure :WALL DESIGNComputed By :FTYDate :24-Apr-13Checked By :Date :- BASEMENT STY TO 5TH STYWall Design (By Elastic Analysis)TYPEHS2C- 6TH STY TO 10TH STY- 6TH STY TO 10TH STY- 11TH STY TO 15TH STYWall DimensionsMaterial Properties- 16TH STY TO 20TH STYThickness =200mmfcu =35N/mm2- 21TH STY TO 25TH STYLength =500mmfy =460N/mm2End zone =100mmCentral zone =300mmLever arm =400mmForces At Wall BaseWall Moment =0kNmWall Axial force =1200kNAssume :Axial force at each end zone =240kN20%Axial force at central zone =720kN80%End ZoneAssume100mm length of wall at both ends to resist axial loadsand in plane momentForce to resist moment F =0kNAsc required =0mm2T16at100centres each face at both endsAsc provided =402mm2OK!(equally distributed at each end zone)Concrete capacity at end zone =274kNOK! No Asc Reqd!(due to load transferred from rc beam)Additional Asc required =0mm2Total Asc required =0mm2T16at100centres each face at both endsAsc provided =402mm2OK!(equally distributed at each end zone)Central ZoneAssume300mm length of wall at to resist axial loadsConcrete capacity at end zone =840kNNominal Reinf. OK!Asc required =800mm2/mT13at100centres each faceAsc provided =2656mm2/mOK!(equally distributed at each end zone)Distribution ReinforcementNominal reinf. =500mm2/mT13at200centres each faceAsc provided =1328mm2/mOK!

Wall_SlabTonnage CalculationsSteel Density7850kg/m3Wall/SlabSize300mm thick% steelTonnageMain Reinforcement%(kg/m3)Top (TT)T20@150mmcentresAsv =2094mm20.755Bottom (BB)T20@150mmcentresAsv =2094mm20.755Distribution ReinforcementTop (T)T13@200mmcentresAsv =664mm20.217Bottom (B)T13@200mmcentresAsv =664mm20.217Total1.8144

rc Beam_ColumnTonnage CalculationsSteel Density7850kg/m3Beam/ColumnSize1000x1000Tonnage%(kg/m3)Main ReinforcementTop28T32As =22528mm22.3177Bottom0T32As =0mm2Links1T10@150mmcentresDim =wxhAsv =524mm2950950Length =3800mm0.2164T10@100mmcentresDim =wxhAsv =3143mm2300950Length =2500mm0.862Total3.2254

Circular_ColumnTonnage CalculationsSteel Density7800kg/m3ColumnDiameter1000mmTonnage%(kg/m3)Main ReinforcementTop23T25As =11295mm23.8296Bottom23T32As =18505mm2Links1T10@250mmcentresDim =wxhAsv =314mm2Length =2670.3537555513mm0.180T10@200mmcentresDim =wxhAsv =0mm2Length =2670.3537555513mm0.00Total3.9304