化學(xué)錨栓承載力計(jì)算

化學(xué)錨栓計(jì)算書,,,,,,,,,,,,,,,,,,,,

一、材料信息及計(jì)算參數(shù),,,,,,,,,,,,,,,,,,,,

,1.錨栓規(guī)格,,,：M,16,，As=,,156.7,,mm2,錨栓類型：,,,膠粘型錨栓,,,,,,

,2.錨栓鋼材:,,,碳鋼及合金鋼,,,,5.8,"等級，fud,t=",,,310,"Mpa,fud,v=",,,180,Mpa,,,

,3.混凝土材料信息：強(qiáng)度等級,,,,,,,C30,",fc=",14.3,"Mpa,ft=",,1.43,"Mpa,fcu,k=",,,30,Mpa，ψa=,,0.9

,4.膠粘型,,,,ψb=,,0.90,,,后擴(kuò)底,,ψa=,0.9,,,,,,,

,錨栓數(shù)n=,,,4,ψN=,,3.8,,,,,ψv=,3.6,,,,,,,

,基材混凝土受拉承載力修正系數(shù),,,,,,,"ψs,h=",,0.95,,"ψe,N=",,1,,,,,,

,"ψN=ψs,hψe,NAc,N/Ac,N0",,,,,,,"Ccr,N=",,187.5,,"Scr,N=",,375,,,,,,

,,,,,,,,"Ac,N0=",,140625,,,,,,,,,,

,,,,,滿足臨界距離,,,"Ac,N=",,562500,,"Ac,N/Ac,N0=",,4,,,,,,

,,一個(gè)方向均不滿足臨界距離,,,,,,"Ac,N=",,160312.5,,"Ac,N/Ac,N0=",,1.14,,,,,,

,,兩個(gè)方向均不滿足臨界距離,,,,,,"Ac,N=",,182756.25,,"Ac,N/Ac,N0=",,1.2996,,,,,,

,,,,,,,,,,,,,,,,,,,,,

,基材混凝土受剪承載力修正系數(shù),,,,,,,"ψs,v=",,0.9,,,,,,,,,,

,"ψv=ψs,vψh,vψa,vψe,vψu(yù),vAc,v/Ac,v0",,,,,,,"ψh,v=",,1,,,,,,,,,,

,,,,,,,,"ψa,v=",,1,,,,,,,,,,

,,,,,,,,"ψe,v=",,1,,,,,,,,,,

,,,,,,,,"ψu(yù),v=",,1,,,,,,,,,,

,,,,滿足規(guī)范16.3.9條時(shí),,,,"Ac,v/Ac,v0=",,4,,,,,,,,,,

,5.錨固深度,,,,,hef=,125,mm,,混凝土基材厚度,,,h≥,250,mm,,,,,

,注：按加固規(guī)范要求的錨固深度和基材厚度要求，適用于有抗震設(shè)防要求的結(jié)構(gòu),,,,,,,,,,,,,,,,,,,

,6.抗震設(shè)防烈度：,,,,7度,,,,,"，ψE,t=",,0.85,"，ψE,v=",,0.8,,,,,

,,,,,,,,,,,,,,,,,,,,,

二、幾何信息,,,,,,,,,,,,,,,,,,,,

,1.平行于剪力方向的邊距,,,,,,C1=,120,mm,,,,,,,,,,,

,2.垂直于剪力方向的邊距,,,,,,C2=,120,mm,,,,,,,,,,,

,3.平行于剪力方向的中距,,,,,,S1=,120,mm,,,,,,,,,,,

,4.垂直于剪力方向的中距,,,,,,S2=,120,mm,,,,,,,,,,,

,,,,,,,,,,,,,,,,,,,,,

三、計(jì)算信息,,,,,,,,,,,,,,,,,,,,

以下均按《混凝土結(jié)構(gòu)加固設(shè)計(jì)規(guī)范》GB50367-2013相關(guān)內(nèi)容計(jì)算,,,,,,,,,,,,,,,,,,,,

,a.錨栓鋼材承載力驗(yàn)算,,,,,,,,,,,,,,,,,,,

,"1.單根錨栓鋼材受拉承載力設(shè)計(jì)值，由式16.2.2，Nta=ψE,tfud,tAs,得：",,,,,,,,,,,,,,,,,,,

,,Nta=,,41.29045,,KN,,,,,,,,,,,,,,

,2.單根錨栓鋼材受剪承載力設(shè)計(jì)值,,,,,,,,,,,,,,,,,,,

,"2.1計(jì)算無杠桿臂受剪承載力設(shè)計(jì)值，由式16.2.4-1，Va=ψE,vfud,vAs,得：",,,,,,,,,,,,,,,,,,,

,,,Va=,22.5648,,KN,,,,,,,,,,,,,,

,"2.2計(jì)算有杠桿臂受剪承載力設(shè)計(jì)值，由式16.2.4-2，Va=1.2ψE,vWclfud,t（1-σ/fud,t）αm/l0,得：",,,,,,,,,,,,,,,,,,,

,,,Va=,,,KN,,,,,,,,,,,,,,

,,,,,,,,,,,,,,,,,,,,,

,b.基材混凝土承載力驗(yàn)算,,,,,,,,,,,,,,,,,,,

,1.基材混凝土的受拉承載力設(shè)計(jì)值，按16.3.2計(jì)算：,,,,,,,,,,,,,,,,,,,

,"1.1由式16.3.2-1，Ntc=2.8ψaψNfcu,k0.5hef1.5得：",,,,,,,,,,,,,,,,,,,

,,,Ntc=,73.30098055,,KN,,,,,,,,,,,,,,

,"1.2由式16.3.2-2，Ntc=2.4ψbψNfcu,k0.5hef1.5得：",,,,,,,,,,,,,,,,,,,

,,,Ntc=,62.8294119,,KN,,,,,,,,,,,,,,

,本工程采用,,,膠粘型錨栓,,,，故Ntc=,,62.8294119,,KN,,,,,,,,,

,,,,,,,,,,,,,,,,,,,,,

,2.基材混凝土的受剪承載力設(shè)計(jì)值，按16.3.6計(jì)算：,,,,,,,,,,,,,,,,,,,

,"2.1由式16.3.6，Vc=0.18ψvfcu,k0.5C11.5d00.3hef0.2得：",,,,,,,,,,,,,,,,,,,

,,,Vc=,28.15305312,,KN,,,,,,,,,,,,,,

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