混凝土螺栓杆预埋件极限承载力计算新方法

New Method of Ultimate Bearing Capacity of Concrete Bolt Rod Embedded Parts Calculation

对于混凝土螺栓杆预埋件,国内外学者研究较少,且国内相关规范尚没有确定其极限承载力计算方法。讨论了国内外文献中4种关于混凝土螺栓杆预埋件极限承载力的计算方法,并将现有的4种和新提出的计算方法对216个混凝土螺栓杆预埋件进行理论值计算与试验结果对比。结果表明,4种计算方法的结果均有较大程度的离散,新提出的计算方法与试验结果能有较好的吻合。

About embedded parts of concrete bolt rods,scholars at home and abroad have little research,and the relevant domestic codes have not yet determined the calculation method of its ultimate bearing capacity.This paper discusses four calculation methods for the ultimate bearing capacity of concrete bolt rod embedded parts in domestic and foreign literature,and calculates the theoretical value of the 216 concrete bolt rod embedded parts with the existing four and newly proposed calculation methods.Compare the test results.The results show that the results of the four calculation methods have a large degree of dispersion,and the newly proposed calculation method is in good agreement with the experimental results.