摘要
研究桥梁的传递关系一般是通过初参数法来求解的。辅助体系法是不同于初参数法的另一种方法,它利用一端固定一端自由的一种辅助体系来研究杆件两端的关系,通过对桥梁不同类型支座的研究,分析不同支座的力学性能。采用辅助体系法分别推导了弹性支座、刚性铰支座和刚性固定支座的传递矩阵,并将其与梁、墩结合在一起构成整个桥梁的传递关系。编制了相应的MATLAB程序,并进行了实例计算。实例计算表明,辅助体系传递矩阵法正确有效,对于支座传递关系的计算简便、实用,可用于桥梁结构的初步设计和最终校核。
Generally,the transfer relationship of the bridge is solved by the initial parameter method. The auxiliary system method is a method different from the initial parameter method,with the transfer relationship of both the member bar's ends solved by an auxiliary system with one end fixed and the other end free. In this paper,the mechanical properties of different supports were analyzed. The transfer matrices of elastic supports,rigid hinge supports and rigid fixed supports were derived by the auxiliary system method. The matrices of supports are then integrated with beam and pier to form the transfer relationship of whole bridge. Then,the corresponding calculation program was compiled by MATLAB,and some examples were carried out. The results indicate that,the method is correct,efficient,and is simple and convenient to use. It can be used for the initial design and final check-up of bridge structures.
出处
《自然灾害学报》
CSCD
北大核心
2014年第6期256-262,共7页
Journal of Natural Disasters
基金
国家自然科学基金资助项目(51078306)
陕西省教育厅专项科研计划资助项目(12JK0916)
高等学校博士学科点专项科研基金(20106120110004)
西安建筑科技大学重大科技项目创新基金(ZX0901)
关键词
辅助体系法
桥梁
弹性支座
刚性铰支座
刚性固定支座
传递矩阵
auxiliary system method
bridge
elastic support
rigid hinge support
rigid fixed support
transfer matrix
