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钢结构焊接连接方法的优点和缺点有哪些?
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钢结构焊接连接方法的优点和缺点有哪些?
时间:2021-12-30 00:21
关键词:
钢结构设计原理
机械工程
大学试题
工学
答案解析
<p> 焊接连接的优点:焊接间可以直接连接,构造简单,制作方便;不削弱截面,节省材料;连接的密闭性好,结构的刚度大;可实现自动化操作,提高焊接结构的质量。<br> 焊接连接的缺点:焊缝附近的热影响区内,钢材的金相组织发生改变,导致局部材质变脆;焊接残余应力和残余变形使受压构件承载力降低;焊接结构对裂纹很敏感,局部裂纹—旦发生,容易扩展至整个截面,低温冷脆问题较为突出。</p>
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钢结构焊接连接方法的优点和缺点有哪些?
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