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对中华人民共和国行业标准JGJ/T249-2011《拱形钢结构技术规程》(以下简称《拱》)中拱形钢管混凝土结构相关的承载力实用计算方法进行了论述。对已有拱形钢管混凝土结构的试验数据采用《拱》进行计算,结果表明按照《拱》计算的承载力结果与试验值较为吻合。同时选取典型算例,进行拱形钢管混凝土结构与相应空钢管结构的承载力对比设计,结果表明在拱形钢管结构的弦管内部填充混凝土对结构的承载力有较大提高。
The practical calculation method of the bearing capacity of arched CFST structure in “Technical Code for Arched Steel Structure” (hereinafter referred to as “arch”) of People’s Republic of China JGJ / T249-2011 is discussed. The test data of the existing arch-type concrete-filled steel tubular structures are calculated using “arch”, and the results show that the bearing capacity calculated according to “arch” is in good agreement with the test value. At the same time, a typical example is selected to compare the bearing capacity of arch concrete filled steel tubular structure and the corresponding empty steel pipe structure. The results show that the concrete filled in the arched steel pipe structure has a great improvement on the bearing capacity of the structure.