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如何模拟将钢束先张拉到80% , 之后再张拉到100%的情况
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wangke81168720
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Mar 30, 2009, 2:34:21 AM
3/30/09
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to 328018027, 内部论坛, 外部论坛
班工
,你好!
如附件 increment-stress.rar所示,模型中只建立了一根钢束,从计算后输入的图形中可以看到,第二个钢束张拉的工况的效应为第一次效应的1/4. 该模型即模拟了将钢束先张拉到80%,之后再拉20%情况。
做法如下:
1、定义预应力筋作用时,分别为同一根钢束定义2个张拉标签,如附图1.gif中的 CS1 和 CS2,其张拉力80% 和 100%
2、在定义第二次钢束张拉的工况时,如附图2.gif所示,选择分步张拉力,这时便能达到只张拉(100%-80%)=20%的效果。
详见附带模型。
wangke81168720
2009-03-30
increment-stress.rar
附图2.GIF
附图1.GIF
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