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滑动支座和抗震有什么关系? - 工程施工 - 项目管理 - 氿上知道
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满意答案
1、如何抗震:耗能
2、原理:地震产生的剪力是按刚度和变形分配的。
说明:
(1)刚度:楼梯相对框架结构来说,刚度比较大,分配的剪力大,地震是宜发生破坏。
(2)变形:变形大了,会耗散地震的能量。
3:地震作用是一种能量:根据功能原理,能量可近似的认为是力(广义力)与位移(广义位移)的矢量的乘积。所有得出防止的两个方法:
(1)增加本身结构的抗力
(2)让结构发生一定的位移
注:只两个要综合应用,只其中一个特别大而另一个为零,那能量也就为零了。
所以:滑动支座就是耗能的一种利用,有些东西抗并不一定好,所以我们建议优先采取构造措施,把楼梯和整体结构脱开。
如果地震是一种“负能量”,那么滑动支座产生的就是“正能量”。
奇卡6
回答于:2015-05-26
共2条回答