单层钢结构厂房的抗震构造有哪些措施

2025-04-07 01:57:39
推荐回答(1个)
回答(1):

       单层钢结构厂房的抗震构造措施如下:

  1、屋盖的构造措施单层钢结构厂房屋盖的抗震构造措施与钢筋混凝土柱厂房的基本相同。
  2、柱、梁的构造措施为了防止地震时柱子失稳,柱的长细比不应大于为了控制柱、梁截面不出现局部失稳,单层框架柱、梁截面板的宽厚比限值,除应符合现行《钢结构设计规范》GB50017对钢结构弹性阶段设计的有关规定外,尚有下表的规定。构件腹板宽厚比,可通过设置纵向加劲肋减小。
  3、柱间交叉支撑的构造措施有吊车时,应在厂房单元中部设置上下柱间支撑,并应在厂房单元两端增设上柱支撑;7度时结构单元长度大于120m,8、9度时结构单元长度大于90m,宜在单元中部1/3区段内设置两道上下柱间支撑。无吊车厂房纵向构件截面较小,柱间支撑不一定必须设在中部。有条件时,柱间支撑可采用消能支撑。


  相关内容:

  单层钢结构厂房横向、纵向抗震计算有哪些方法?
  一、厂房横向抗震计算一般情况下,宜计入屋盖变形进行空间分析;采用轻型屋盖时,可按平面排架式框架计算。
  二、厂房纵向抗震计算,可采用下列方法:
  用轻质墙板或与柱柔性连接的大型墙板的厂房,可按单质点计算,各柱列的地震作用应按以下原则分配:
  1、钢筋混凝土无檩屋盖可按柱列刚度比例分配;
       2、轻型屋盖可按柱列承受的重力荷载代表值的比例分配;  

       3、钢筋混凝土有檩屋盖可取上述两种分配结果的平均值。

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