首页/ 题库 / [问答题]为什么大跨度连续梁桥沿纵向一般设计成变高的答案

为什么大跨度连续梁桥沿纵向一般设计成变高度的形式?

问答题
2021-12-26 22:06
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正确答案

1、大跨度连续梁桥恒载内力占得比重比较大,选用变高度梁可以大大减少跨中区段因恒载产生的内力;2、变高度梁符合内力分布规律;
3、采用悬臂法施工时,变高度梁又与施工的内力状态相吻合;
4、从美学观点出发,变高度梁比较有韵律感,特别是位于城市中的桥梁。


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为什么大跨度连续梁桥沿纵向一般设计成变高度的形式?
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