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1、40米跨径现浇箱梁贝雷梁支撑体 系详细计算书全套计算依据:L建筑结构荷载规范GB50009-20122、钢结构设计标准GB50017-20173、混凝土结构设计规范GB50010-2010一、基本参数门洞支撑搭设方式横向转换梁+纵梁+ 横向承重梁门洞立柱高H(m)是否考虑结构截面沿纵向变化是门洞支撑结构纵向计算截 面分区数n1、门洞立柱定位参数门洞立柱横向定位参数:序号 门洞立柱横向从上往下依次间距B (m)1222324252门洞立柱纵向定位参数:序号 门洞立柱纵向从左往右依次间距L (m)1212、门洞纵梁定位参数序号门洞纵梁从上往下依次间距S (m)11.821.831.841.851.
2、861.83.横向转换梁定位参数横向转换梁纵向间距a(i)(m) 横向转换梁纵向排数n(i)区块10.66区块20.916区块30.66二,荷载参数1 .均布荷载定位及大小均布面荷载标准值(kNm2)均布面荷载设计值(kNm2)区块14550区块22025区块34550三,横向转换梁计算横向转换梁在门洞横向上端悬挑长度al(m)0.8横向转换梁在门洞横向下端悬挑长度a2(m)0.8横向转换梁材质及类型槽钢截面类型12号槽钢抗弯强度设计值f(Nmm2)205抗剪强度设计值E(N/mm2)125弹性模量E(Nmm2)206000截面抵抗矩W(cm3)57.7截面惯性矩I(cm4)346允许挠度M1
3、/250自重线荷载标准值(kNm)0.1211 .区块1横向转换梁计算均布线荷载标准值 q, =0.121+450.6=27.121kNm均布荷载设计值 q = l35. 121 + 50x0.6=30.163kNm计算简图1)抗弯验算横向转换梁弯矩图(kNm)=MmaxW=9.65210657700=167.282Nmm2f=205Nmm2满足要求!2)抗剪验算横向转换梁剪力图(kN)Vmax=28.21kNmax=Vmax(8Iz)bh02-(b-)h2=28.211000531202-(53-5.5)1022(834600005.5) = 49.848Nmm2 = 125Nmm2满足要求
4、!3)挠度验算横向转换梁变形图(mm)跨中:vmax=1.114mmv = 1800250=7.2mm悬挑端:vmax=2.738mmv=8002250=6.4mm满足要求!4)支座反力计算正常使用极限状态R l=47.062kN ,R 2=47.601kN ,R 3=49.166kN ,R 4=48644kN ,R 5=49.166kN , R 6=47.601kN , R 7=47.062kN承载能力极限状态Rl=52.341kN , R2 = 52.94kN , R3 = 54.68kN , R4=54.1kN ,R5 = 54.68kN , R6=52.94kN , R7=52.341
5、kN2、区块2横向转换梁计算均布线荷载标准值 q, =0.121+200.9=18.121kNm均布荷载设计值 q = L350.121+2509=22663kNm计算简图如下:1)强度.挠度验算如下:项次抗弯强度验算抗剪强度验算挠度变形验算验算 值=125.687Nmm2max=37.453Nmm2跨中:vmax=0.745mm悬挑端:VmaX=I.83mm允许 值f=205Nmm2=125Nmm2跨中:v=1800250=7.2mm悬挑端:v=8002250=6.4mm结论符合要求!符合要求!符合要求!2)支座反力计算R l = 31.445kN ,R 2 = 31.805kN ,R 3
6、= 32.85kN ,R 4=32.502kN ,R 5 = 32.85kN , R 6=31.805kN , R 7=31.445kN承载能力极限状态Rl=39.326kN , R2 = 39.776kN , R3=41.084kN , R4=40648kN ,R5=41.084kN , R6=39.776kN , R7=39.326kN3、区块3横向转换梁计算均布线荷载标准值 q, =0.121+450.6=27.121kNm均布荷载设计值 q = l350.121 + 5006=30163kNm计算简图如下:1)强度.挠度验算如下:项次抗弯强度验算抗剪强度验算挠度变形验算验算 值=167
7、.282Nmm2max=49.848Nmm2跨中:vmax=l.114mm悬挑端:VmaX=2.738mm允许 值f=205Nmm2=125Nmm2跨中:v=1800250=7.2mm悬挑端:v=8002250=6.4mm结论符合要求!符合要求!符合要求!2)支座反力计算正常使用极限状态R l=47.062kN ,R 2=47.601kN ,R 3=49.166kN ,R 4=48644kN ,R 5=49.166kN , R 6=47.601kN , R 7=47.062kN承载能力极限状态Rl=52.341kN , R2 = 52.94kN , R3 = 54.68kN , R4=54.1
8、kN ,R5 = 5468kN , R6=52.94kN , R7=52.341kN四.纵梁计算纵梁左端的悬挑长度bl(m)0.3纵梁右端的悬挑长度b2(m)0.4纵向最左侧横向转换梁距纵梁左端的距离la(m)0.3是否为加强贝雷梁是梁片组合形式三排单 层贝雷梁容许弯矩M(kN.m)4809.4贝雷梁容许剪力V(kN)698.9贝雷梁自重线荷载标准值(kNm)0.331.纵梁Lbl计算区块1范围内:纵梁所受线荷载标准值:q =0.33kNm纵梁所受梁线荷载设计值:q = 1.350.33=0.446kNm区块2范围内:纵梁所受线荷载标准值:q, =0.33kNm纵梁所受梁线荷载设计值:q =
9、1.350.33=0.446kNm区块3范围内:纵梁所受线荷载标准值:q, =0.33kNm纵梁所受梁线荷载设计值:q = 1.350.33=0.446kNm纵梁所受集中荷载标准值依次为:F l=47.062kN 尸 2=47.062kN ,F 3=47.062kN zF, 4=47.062kN ,F 5=47.062kN , F 6=47.062kNF,7=31.445kN ,F 8=31.445kN ,F 9=31.445kN ,F 10=31.445kN , F ll = 31.445kN , F 12 = 31.445kN , F 13 = 31.445kN , F 14=31.445
10、kN zF, 15=31.445kN ,F 16=31.445kN ,F 17=3L445kN , F 18=31.445kN , F 19=31.445kN , F 20=31.445kN , F 21 = 31.445kN , F 22 = 31.445kNF, 23=47.062kN , F 24=47.062kN z F/ 25=47.062kN , F26=47.062kN , F 27=47.062kN , F 28=47.062kN纵梁所受集中荷载设计值依次为:Fl=52.341kN z F2 = 52.341kN z F3 = 52.341kN z F4=52.341kN ,F
11、5 = 52.341kN , F6=52.341kNF7=39.326kN , F8 = 39.326kN , F9=39.326kN z F10=39.326kN ,Fll = 39.326kN zF12 = 39.326kN zF13 = 39.326kN zF14=39.326kN ,F15 = 39.326kN zF16=39.326kN zF17=39.326kN zF18=39.326kN ,F19 = 39.326kN , F20=39.326kN , F21 = 39.326kN , F22 = 39.326kNF23 = 52.341kN zF24=52.341kN zF25
12、 = 52.341kN zF26=52.341kN ,F27 = 52.341kN z F28 = 52.341kN由于纵梁为贝雷梁 抗弯抗剪验算用容许值 厕荷载对应用标准值计算。计算简图如下:纵梁Lbl计算简图1)抗弯验算纵梁Lbl弯矩图(kNm)Mmax=2162.358kNmM=4809.4kNm满足要求!2)抗剪验算纵梁Lbl剪力图(kN)Vmax=490.474kN V=698.9kN满足要求!3)支座反力验算正常使用极限状态:连续梁支座反力(传递至横向承重梁荷载)标准值为:R, l=531.393kN , R, 2 = 538.648kN承载能力极限状态:连续梁支座反力(传递至横向
13、承重梁荷载)设计值为:Rl=625.761kN , R2=634.441kN 2、纵梁Lb2计算参考Lbl计算,区别之处仅荷载大小不同,荷载位置相同区块1范围内:纵梁所受线荷载标准值:q, =0.33kNm纵梁所受梁线荷载设计值:q = 1.350.33=0.446kNm区块2范围内:纵梁所受线荷载标准值:q, =0.33kNm纵梁所受梁线荷载设计值:q = 1.350.33=0.446kNm区块3范围内:纵梁所受线荷载标准值:q, =0.33kNm纵梁所受梁线荷载设计值:q = 1.350.33=0.446kNm纵梁所受集中荷载标准值依次为:F, l=47.601kN ,F, 2=47.60
14、1kN F 3=47.601kN ,F, 4=47.601kN ,F, 5=47.601kN , F, 6=47.601kNF,7=31.805kN ,F, 8=31.8O5kN ,F, 9=31.805kN ,F, 10=31.805kN ,F, ll=31.8O5kN , F, 12=31.805kN , F, 13=31.8O5kN , F,14=31.805kN ,F/ 15=31.805kN ,F, 16=31.8O5kN ,F, 17=31.805kN ,F, 18=31.805kN , F 19 = 31.805kN z F/ 20=31.805kN , F21 = 31.805kN z F, 22 = 31.805kNF, 23=47.601kN , F 24=47.60IkN ,