钢筋混凝土井字梁结构塑性极限分析  

Plastic Limit Analysis of Reinforced Concrete Waffle

作　　者：俞希楠[1] 张维奇[1] 周启龙 

机构地区：[1]南昌大学建筑工程学院,江西南昌330031 [2]江西省交通设计院,江西南昌330021

出　　处：《南昌大学学报（工科版）》2008年第4期394-397,共4页Journal of Nanchang University(Engineering & Technology)

摘　　要：对钢筋混凝土井式梁结构进行了塑性极限分析,得出了极限承载力得实用计算通式及相应得系数供设计使用。假设各井式梁内力间比例符合弹性结果比例,并考虑不同的边界条件,结果表明,对井式梁结构进行塑性极限分析,更加接近实际的受力状态,计算过程相对简单,避免了实际工程运用中各梁过量的内力调幅,使得结构设计更加优化。Plastic limit analysis was used to analyze reinforced concrete waffle structure . By this method, the general formulas and relevant coefficients of the ultimate bearing capacity are determined for design. On the assumption that the proportion of each beam internal force was identical with elastic one, different boundary conditions can be considered. The conclusion indicated that ： the result of plastic limit analysis of waffle is more adjacent to the factual state, the process of solution is relativity simple, and the case of excessive amplitude modulation of internal force in engineering is avoided and the design of waffle will be more economical.

关 键 词：井式梁结构 塑性极限分析 内力调幅 

分 类 号：TU375[建筑科学—结构工程]