基于时变性的混凝土建筑施工方案优选  

Construction Plan Optimization of Concrete Buildings Based on Time-Dependence

作　　者：赵挺生[1] 方东平[2] 王泽辉[3] 

机构地区：[1]华中科技大学土木工程与力学学院,湖北武汉430074 [2]清华大学土木系,北京100084 [3]中国建筑工程总公司,北京100081

出　　处：《华中科技大学学报（城市科学版）》2005年第4期12-16,共5页Journal of Huazhong University of Science and Technology

基　　金：中国博士后科学基金资助项目(2003033159);国家自然科学基金资助项目(50378051)

摘　　要：现浇混凝土建筑结构施工期间,临时承载结构是由模板支撑和早龄期混凝土结构组成的时变结构.其特征参数包括弹性特征值,混凝土弹性模量发展系数,模板支撑薄弱层以及施工周期、支模层数、拆模时间等,它们直接或间接决定楼板承担施工荷载的大小.根据各特征参数对楼板承担施工荷载的影响规律,在保障施工安全的前提下,提出了施工时变结构体系特征参数的调整原则,实现施工方案的最优化.The transitory bearing structure of concrete building during construction is varying with time, namely time dependent structure. It consists of formwork shores and early age concrete structure. Its characteristic parameters include elastic nominal value, the ratio of elastic modulus progressing, weakened level of shores, the time of construction cycle, the levels of shores and the time of removing the shores, etc. The above parameters determine the construction load distribution in the time-dependent structure system directly and/or indirectly. Based on the effecting of these parameters on load distribution, the principle of construction parameters adjusting is proposed to guarantee the construction safety, the construction plan thereby can be optimized.

关 键 词：混凝土建筑结构 时变结构 施工 

分 类 号：TU318[建筑科学—结构工程]