STABILITY ANALYSIS OF MULTI-CIRCULAR STEEL ARCHES WITH VARIABLE BOX-SECTION
This paper is concerned with the stability analysis of multi-circular steel arches with variable Box-section on a background of project. By using the finite-element program for the nonlinear analysis, the behavior of the special deep steel arches subjected to symmetrically or asymmetrically uniformly distributed load along the horizontal projection was investigated. The nonlinear inelastic behavior of the arches was studied by taking into account the effects of large deformations, initial crookedness, and the material inelasticity. The study shows that, in the case of symmetrical load, the effects of large deformations and initial crookedness are not important to single arch, substructure, and the whole structure; and the materials elastic-plastic behavior has certain influence to single arch, but the remarkably influence on the load-bearing capacity of substructure and the whole structure. For the arches subjected to asymmetrical load, the single arch and the whole structure is sensitive to the initial crookedness. On considering material inelasticity, the loadcarrying capacity of steel arches will be tremendously decreased; and on using some braces, the stability of the whole structure can be enhanced.
steel arches, multi-circular arches nonlinear analysis stability buckling
Jun Jiang Jiping Hao Yangcheng Li
Xian University of Architecture & Technology, China
国际会议
The 9th International Conference on Steel Space & Composite Structures(第九届国际钢材、空间结构、组合结构会议)
烟台·北京
英文
55-62
2007-10-10（万方平台首次上网日期，不代表论文的发表时间）