当反应谱法抗震分析无法使用repeat load,并且p-delta 二阶分析必须采用repeatload 而不能用load combination. sttadpro底部剪力法不包含欧洲规范,因此需要手动计算 。 具体方法如下:1.用referenc load 创建每层的story weight (1.0恒载+0.5活载),如下图所示: 2.创建W2W3W4W5…建筑总重,和W2Z2W3Z3W4Z4….(层重x层高)的和。分别用于提反力。反力的总和可以和用来计算地震水平力系数。 3.将地震水平力系数和 1D+0.5L(质量源系数)结合得出新的系数。这个系数是最终的水平力系数 4.求X和Z两个方向自振周期有两个方法:(1)添加内置seismicload,再output里搜索period。(2)创建两个x和z方向的地震力工况,然后分别加上不同方向的荷载(1D+0.5L),在工况的后边加上CALCULATE RAYLEIGH FREQUENCY。也可以引用reference load. 5.当使用seismic load , response spectum 和rayleigh frequency三种方法求自振周期的时候.质量源三个方向的平动机会必须保持一致. seismic load和response spectum可以加 xyz三个方向,得出的结果也是一致的, 但是rayleigh frequency不能加三个方向,用单个方向或者单个方向加竖向都得不出相同的自振周期. 6.response spectum的前三阶模态一般代表的是两个水平方向xz外加扭转 7.如果建筑的荷载均匀且刚度均匀, […]
Tag: StaadProModel
Project(162) Steel Design Of Pipe Bridge (S2129)
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Project (28) Steel Structural Design (S1724)
Analysis software: Staad Pro Calculation of Connection Connection detail drawing Design code: GB50017-2017《Standard for design of steel structures》
Project (27) Steel Structural Design (S1723)
Analysis software: Staad Pro Structural drawing Calculation of Connection Connection detail drawing Design code: EN 1993-1-1:200 & EN 1993-1-8:2005
Project (26) ASIC Steel Structural Design (S1722)
Analysis software: Staad Pro Structural drawing Calculation of Connection Connection detail drawing Design code: AISC 360-10
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Project (16) Steel Structural Design (S1716)
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Steel structure analysis and design Analysis software: Staad Pro Design code:AISC 360-10
Project (07) Steel Structural Design (S1707)
Steel structure analysis and design Analysis software:StaadPro Calculation of Connection Structural drawing Connection detail drawing Design code: GB50017-2017