那里有关于 梁柱线刚度比 限值的相关规定 ,在哪本规范里可以找到 抗震规范 还是 钢结构规范 谢谢!!

2025-01-04 07:16:59
推荐回答(2个)
回答1:

  一、混凝土教材里说梁的线刚度往往大于柱的线刚度,甚至梁是柱的3-5倍,限制没有作出规定。《混规》,《高规》,《抗规》。
  二、刚度的概念:
  刚度的定义就是构件抵抗变形的能力,这就是刚度,刚度和两个因素有关一个是构件的惯性矩另一个是弹性模量。这就是我们常见到EI,这个就是刚度的基本含义。线刚度就是构件的刚度除以长度(跨度),梁的线刚度就是EI/L。柱子的线刚度同样的道理。线刚度比又是什么呢,线刚度比是以节点为核心,在这个节点上连接的构件(梁柱),比如刚节点,柱和梁相交的位置,此节点,在内力(自重,温度应力,其他自身产生的应力)或者外力(风荷载,地震荷载,其他外部作用)作用下会产生弯矩。弯矩由构件承担,且力具有传递性。因此构件就会遵循能者居上的前提,也就说,能者多劳的前提,根据各个构件刚度大小来分配作用。刚度大的,分配的作用就多,反之则会承担越小的作用。因此,各种荷载作用就要通过线刚度比来实现分配。

回答2:

冷弯薄壁钢结构技术规范。你有邮箱我给你传过去。。
主要构件,主要承重柱。钢架柱。桁架。和格构式钢架的旋杆及支座压杆。容许长细比150;其他支撑200
希望对你有帮助

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