平板网架拆除方案及计算书送审.docx

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1、拆除方案验算计算书1拆除方案概况根据拆除方案，先拆除I区。结构分区布置见下图1所示I11号区於1D号区域东I_15.S11；正线程范用他；I=U/IIIIMBTCBTC车车：I1IffCMTC车11车I.$.小MTCMTC车MrC车1I车*1浆包MrCr车：KH：II蛾车义QIII1If1”6/)&7fUIMI1fIIETC迁醇I图1清河主线站收费大棚拆除立面图根据原设计总说明，结构荷载如下：上弦荷载：静载（不包括网架自重）0.25KN/M2活载（不包括网架自重）0.50KN/M2下弦荷载：静载（不包括网架自重）0.1OKNZM2网架自重：通过3D3S空间有限元软件自动计算；网架风荷载：通过软

2、件形成自动封闭面计算导荷计算得到;2.原结构模型建模2.1 结构模型根据原结构图纸建立整体模型，如下图1所示:计算简图（圆表示支座，数字为节点号）2.2 荷载添加与组合结构重要性系数：1.00荷载工况汇总表工况号荷载类型荷载说明0恒1活2活3活工况号荷载类型荷载说明4活5活6活7活8活9活10活11活12活13活14活15活16风节点荷载1）工况号：O*输入的面荷载:序号荷载类型导荷方式体形系数面荷载值（基本风压）kNm1恒载双向节点一0.252恒载双向节点一0.10面荷载分布图:面荷载序号1分布图（黑点表示荷载分配到的节点）面荷载序号2分布图（黑点表示荷载分配到的节点）2）工况号：15*输入

3、的面荷载:序号荷载类型导荷方式体形系数面荷载值（基本风压）kNm21活载双向节点一0.50面荷载分布图:面荷载序号1分布图（黑点表示荷载分配到的节点）3）工况号：16*输入的面荷载：序号荷载类型导荷方式体形系数面荷载值（基本风压）kNm1风载双向节点-0.800.35面荷载分命图:IkA5AAAAAUAXAVAAAAAAXAA1.001O(T0.900.900.700.700.500.500.00单元数00021537百分比0.0%0.0%0.0%0.1%99.9%按“绕2轴应力比”显示构件颜色“绕2轴整体稳定应力比”最大的前10个单元的验算结果（所在组合号/情况号）序号单元号强度绕2轴整体稳

4、定绕3轴整体稳定沿2轴抗剪应力比沿3轴抗剪应力比绕2轴长细比绕3轴长细比结果110.0230.000(3/1)0.0440.0000.000104104满足220.0260.000(3/1)0.0000.0000.000104104满足330.0510.000(1/1)0.0960.0000.000104104满足440.1210.000(1/1)0.2280.0000.000104104满足550.0950.000(1/1)0.0000.0000.000104104满足660.1040.000(1/1)0.1960.0000.000104104满足770.0780.000(1/1)0.000

5、0.0000.000104104满足880.0270.000(1/1)0.0510.0000.000104104满足990.0080.000(1/1)0.0000.0000.000104104满足10100.0520.000(1/1)0.0060.0000.000104104满足按“绕2轴整体稳定应力比”统计结果表范围1.001.000.900.900.700.700.500.500.00单元数00001539百分比0.0%0.0%0.0%0.0%100.0%按“绕3轴应力比”显示构件颜色“绕3轴整体稳定应力比”最大的前10个单元的验算结果（所在组合号/情况号）序号单元号强度绕2轴整体稳定绕3

6、轴整体稳定沿2轴抗剪应力比沿3轴抗剪应力比绕2轴长细比绕3轴长细比结果112110.3620.0000.772(1/1)0.0000.000114114满足21440.3520.0000.750(1/1)0.0000.000114114满足31350.3460.0000.737(1/1)0.0000.000114114满足4810.3370.0000.718(1/1)0.0000.000114114满足5900.3340.0000.712(1/1)0.0000.000114114满足61360.3230.0000.684(1/1)0.0000.000113113满足71340.3230.000

7、0.683(1/1)0.0000.000113113满足812100.3140.0000.670(1/1)0.0000.000114114满足912120.3130.0000.668(1/1)0.0000.000114114满足104430.3850.0000.665(1/1)0.0000.0009696满足按“绕3轴整体稳定应力比”统计结果表范围1.001.000.900.900.700.700.500.500.00单元数005381496百分比0.0%0.0%0.3%2.5%97.2%4.II区基础验算11:-0.000/0.000也0.7孰186Ny=-0.342/-6.035Mz=197,552/114,140Ny=4.e070.368也=169.179/113.890Mx-M81-32,251My-1.698-20.381MAQOoo/0.000Mx-39.455/1.198Uy1.478/-4.235MZ=QooO/0.000Ita=2W-0.653Ny=-2,558-10.501Nz-173