钢梯计算.xls
- 文档编号:7675968
- 上传时间:2023-05-11
- 格式:XLS
- 页数:4
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钢梯计算.xls
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上海三铭制业有限公司标准厂房-钢梯验算输入区梯段水平长度L1(mm)4600钢材型号1平台长度L2(mm)0f(Mpa)215楼梯宽度B(mm)1000fv(Mpa)125楼梯高度H(mm)4600活荷载标准值(kN/m2)3.5梯梁截面挠度限值L/400栏杆高度h1(mm)1200踏步数n234踏步板宽度b1(mm)320注:
扶手采用50x2.5钢管,栏杆采用20方钢,每踏步二根踏步板厚度t1(mm)4.5输出区1.荷载及内力计算L3=sqrt(L12+H2)=6505.38mm梯梁自重0.141kN/m水平投影面梯板自重0.283kN/m栏杆自重0.377kN/m扶手自重0.041kN/m0.842kN/m乘以1.20增大系数1.011kN/m楼梯竖向荷载不宜小于2.00kN/m2折算成线荷载为1.00kN/mL=L1+L2=4.60mgk=1.01kN/m恒荷载标准值qk=1.75kN/m活荷载标准值p=3.66kN/m线荷载设计值M=pL2/8=9.69kN.m最大弯矩设计值V=pL/2=8.42kN最大剪力设计值2.强度验算=M/w=244.28Mpa不满足最大正应力=VS/(Itw)=18.84Mpa满足最大剪应力3.挠度验算Ix=th3/12=1.983E+06mm4=5(gk+qk)L4/(384EIx)=39.40mm不满足=L/400=11.50mmQ235C10第1页,共4页EsfyffvQ2352.06E+05235215125Q3452.06E+05345315185热轧普通槽钢截面特性名称hbtwtfgz0AIxIySxWxC550374.575.4313.569226000083000640010400.0C6.363404.87.56.6313.6845512000119000980016254.0C88043588.0414.3102410130001660001510025325.0C10100485.38.510.0015.2127419830002560002350039660.0C12.6126535.5912.3215.9156938850003800003640061666.7C14a1405869.514.5317.1185156370005320004750080528.6C14b1406089.516.7316.7213160940006120005240087057.1C16a160636.51017.2317.92195866200073400063900108275.0C16160658.51019.7417.52515934500083400070300116812.5C18a18068710.520.1718.825691272700098600083500141411.1C1818070910.522.9918.4292913699000111000091600152211.1C20a2007371122.6320.12883178040001280000104700178040.0C202007591125.7719.53283191370001436000114700191370.0C22a22077711.524.99213184239390001578000127600217627.3C2222079911.528.4520.33624257130001765000139700233754.5C25a2507871227.4020.73491335910001759000157800268728.0C25b2508091231.3319.93991361950001964000173500289560.0C25c25082111235.2519.64491388000002159000189100310400.0C28a280827.512.531.4220.94002475250002179000200200339464.3C28b280849.512.535.8120.24562511840002415000219800365600.0C28c2808611.512.540.2119.95122548430002641000239400391735.7C32a3208881438.0722.44850751060003047000276900469412.5C32b32090101443.1021.65490805680003356000302500503550.0C32c32092121448.1221.36130860290003650000328100537681.3C36a3609691647.8024.460891187410004550000389900659672.2C36b36098111653.4523.768091265170004967000422300702872.2C36c360100131659.1023.475291342930005366000454700746072.2C40a40010010.51858.9124.975041757770005920000524400878885.0C40b40010212.51865.1924.483041864440006406000564400932220.0C40c40010414.51871.4724.291041971100006878000604400985550.0WymaxWyminixiy6148.13531.919.43.98750.04507.624.64.411608.45784.031.55.016842.17804.939.55.623899.410242.649.86.331111.113007.355.26.636646.714133.953.56.441005.616274.962.87.047657.117557.961.06.852446.820040.770.47.460326.121511.668.47.263681.624196.678.67.973641.025873.976.37.675142.928178.686.78.386945.830068.184.28.084975.830698.198.18.898693.532678.995.28.5110153.134599.492.98.3104258.435662.8109.09.2119554.537852.7105.99.0132713.639954.6103.58.7136026.846448.2124.49.8155370.449064.3121.19.6171361.551626.6118.59.4186475.463547.5139.610.4209578.166850.6136.310.2229316.270052.2133.610.0237751.078828.2153.110.8262541.082551.5149.810.6284214.986190.5147.110.4xBHtwtfZo
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