Load Distribution Assessment of Reinforced Concrete Buildings During Construction with Structural Characteristic Parameter Approach  

作　　者：方东平 席海峰 王晓明 张传敏 赵挺生 

机构地区：[1]School of Civil Engineering,Tsinghua University [2]Urban Systems Program,CSIRO Sustainable Ecosystems,Commonwealth Scientific and Industrial Research Organisation(CSIRO) [3]Henan Development and Reform Commission [4]School of Civil Engineering and Mechanics,Huazhong University of Science and Technology

出　　处：《Tsinghua Science and Technology》2009年第6期746-755,共10页清华大学学报（自然科学版（英文版）

基　　金：Supported by the National Natural Science Foundation of China (Nos.50378051,70172005,and 70572007);the National Science and Technology Planning Project (No.2006BAJ01B04-03)

摘　　要：High-rise reinforced concrete buildings are in great demand in developing countries with rapid urbanization. Construction engineers are facing more and more safety control challenges. One major issue is the understanding of the load distributions, especially the maximum slab load, of structures under construction, which is time dependent. Previous methods were mainly targeted to specific examples, providing specific solutions without addressing the fundamental issues of finding general solutions for load distributions in reinforced concrete buildings with different geometrical and material characteristics during construction. The concept of a structural characteristic parameter is used here to parametedze the main geometrical and material characteristics of concrete structures for generalized assessments of load distributions during construction. The maximum slab load for 20 different construction shoring/reshoring schemes is presented. The results indicate that the traditional simplified method may underestimate or overestimate the maximum slab load, depending mainly on the shoring/reshoring schemes. The structural characteristic parameter approach was specifically developed to assist construction engineers to estimate load distributions to assure safe construction procedures.High-rise reinforced concrete buildings are in great demand in developing countries with rapid urbanization. Construction engineers are facing more and more safety control challenges. One major issue is the understanding of the load distributions, especially the maximum slab load, of structures under construction, which is time dependent. Previous methods were mainly targeted to specific examples, providing specific solutions without addressing the fundamental issues of finding general solutions for load distributions in reinforced concrete buildings with different geometrical and material characteristics during construction. The concept of a structural characteristic parameter is used here to parametedze the main geometrical and material characteristics of concrete structures for generalized assessments of load distributions during construction. The maximum slab load for 20 different construction shoring/reshoring schemes is presented. The results indicate that the traditional simplified method may underestimate or overestimate the maximum slab load, depending mainly on the shoring/reshoring schemes. The structural characteristic parameter approach was specifically developed to assist construction engineers to estimate load distributions to assure safe construction procedures.

关 键 词：reinforced concrete buildings construction load re-distdbution structural characteristic parameter： slab-shore interaction 

分 类 号：TU375[建筑科学—结构工程]