【摘 要】
：
提出了一种新型的组合结构--波形钢腹板钢管混凝土梁,进行了3根模型梁的受弯试验.对试验梁的变形、应变、破坏模式和极限承载力等进行了分析,比较了上下弦管填充混凝土对梁受
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提出了一种新型的组合结构--波形钢腹板钢管混凝土梁,进行了3根模型梁的受弯试验.对试验梁的变形、应变、破坏模式和极限承载力等进行了分析,比较了上下弦管填充混凝土对梁受力性能的作用,并与钢管混凝土桁梁的试验结果进行了对比.结果表明,与钢管混凝土桁梁相比,波形钢腹板钢管混凝土梁避免了节点破坏问题,其抗弯刚度和极限承载力得到较大的提高;上弦钢管填充混凝土对提高极限承载力作用很大,下弦钢管填充混凝土也能提高梁的极限承载力,但作用小于上弦管;"拟平截面假定"的计算方法可以用于波形钢腹板钢管混凝土梁的极限承载力计算.
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