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试述钢结构的几种连接方法,常用的焊接方法及特点是什么?

问答题
2022-06-30 22:06
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正确答案

钢构件的连接多采用焊接连接和螺栓连接。螺栓连接分普通螺栓和高强度螺栓连接等。前者主要用于拆装式结构或在焊接、铆接施工时用作临时固定构件。优点:装拆方便,不需特殊设备,施工速度快;后者是近几年发展起来的具有高强度承受动载安全可靠,安装简便迅速,成本较低,连接紧密不易松动,塑性韧性好,装拆方便,节省钢材,便于维护的一种连接方法,适用于永久性的结构。焊接连接是钢结构的主要连接方法。优点:构造简单便于加工,构造刚度大,连接的紧密性好,节约钢材,生产效率高;缺点是焊接容易产生焊接应力和焊接变形,严重的甚至造成裂纹,导致脆性破坏。


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