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两个方向的桁架，高度不一样，小桁架支撑于高度大的桁架上，请教构造如何处理？ - 工程施工 - 项目管理 - 氿上知道
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满意答案
水平支撑和垂直支撑宜布置在同一区间内，且宜布置在边跨或者倒数第二跨内，支撑之间的间距宜45m~60m布一道。这是布置的基本原则。
对于水平支撑，与梁的夹角宜为45°，在支撑与梁的连接处应布置有刚性系杆，水平支撑的大小应根据山墙的风荷载来计算其大小。对于门式钢架水平支撑应布置在梁上翼缘，对于桁架，上弦和下弦都应有水平支撑。
对于垂直支撑，一般有大于5t的吊车时，应该布置为刚性支撑，否则，可以为柔性支撑，柔性支撑可以用Φ20~30的圆钢，刚性支撑可以用双拼的角钢。垂直支撑的计算可根据山墙风荷载的大小来计算，计算方法及过程从略。。
Walk
回答于：2015-02-27
共2条回答