摘要
大型管桁架结构由于其良好的受力性能多用于大跨度空间结构。其支座节点的设计非常关键。由于管桁架结构的支座一般考虑成铰接节点,所以如何有效地传递水平及竖向力并且释放掉弯矩是设计的重点。以某大型管桁架结构工程为背景,研究比较了各种支座节点形式,最终选用销轴节点,并且通过有限元软件ANSYS对节点进行实体有限元分析。有限元分析结果表明了支座节点设计的合理性,并且为销轴节点的设计计算提出一些建议。
The tubular truss is widely used in the large-span spatial structures for its good performance under various loading cases. The design of the support is very crucial for the whole structure. Because the support of the tubular truss is mostly considered as the hinge support, it is the key point that how the support can transfer the vertical and horizontal force but release all the moments. Based on a project of one tubular truss structure, the article analyzes and compares some types of supports and finally the pin support is selected for the design. By using the software ANSYS, the solid finite element analysis is conducted and the results provide some useful suggestions for further design of this type of support.
出处
《低温建筑技术》
2009年第6期64-66,共3页
Low Temperature Architecture Technology
关键词
管桁架
销轴支座
有限元分析
tubular truss
pin support
finite element analysis
