A STUDY ON PRACTICAL CALCULATION METHOD FOR ASSEMBLED SKEW HOLLOW SLAB BRIDGES
Firstly, this paper analyzes an assembled skew hollow slab bridge by using ANSYS re-developed by means of ANSYS parametric design language (APDL) to get its influence surfaces of bending moments, torsional moments and shearing forces on the control sections respectively. The most unfavorable inner forces of the bridge are obtained by dynamic programming to load on the influence surfaces of inner forces. Then the influence surfaces of inner forces and the most unfavorable inner forces of an assembled normal hollow slab bridge, which is of the same section, span and material as the skew one, are analyzed. After comparing the computational results of the normal bridge with those of the skew one, this paper puts forward an amended coefficient method of inner force calculating for assembled skew hollow slab bridges. It also analyzes structure parameters’ effect upon the reduction coefficients, and provides some reference data for designing an assembled skew hollow slab bridge.
Bridge engineering skew hollow slab influence surfaces of inner forces finite element method practical calculation method reduction coefficient
Xiao-Yan Liu Xiang-Sen Ou-Yang Xiao-Lei Li
Changsha University of Science & Technology,Changsha 410076,P. R.China Hunan Institute of Engineering,Xiangtan 410004,P. R.China
国际会议
长沙
英文
826-831
2009-10-26（万方平台首次上网日期，不代表论文的发表时间）