摘要
引入水工结构中徐变度的指数函数表达形式 ,阐明了利用徐变度对高层建筑进行考虑施工过程的徐变增量分析的初应变法的原理和基本步骤 ,编制了相应程序对框架和框支剪力墙结构算例分别进行对比分析 ,指出该简化方法避免了记录应力时程 ,效率较高 ,适于初步设计阶段估算徐变影响时使用 .
The relatively accurate method for creep analysis considering construction process in high-rise buildings is referred to the creep coefficient method in bridge engineering. But it takes too much time because it need record all stress changes during loading. This dissertation introduces the degree of creep used in hydro-structures which is defined as exponential function. The principle of initial strain method using degree of creep is represented for creep increment analysis considering construction process in high-rise buildings and corresponding program is programmed. By comparing two examples, namely a frame and a shear-wall supported by frame, it is concluded that the simplified method can be applied for estimating the influences of creep in the primary design stage witn its not recording the stress history and high efficiency.
出处
《华北水利水电学院学报》
2001年第4期25-29,共5页
North China Institute of Water Conservancy and Hydroelectric Power
基金
河南省自然科学基金资助项目 (96 40 4110 0 )
关键词
高层建筑
徐变度
施工过程
初应变
high-rise building
degree of creep
construction process
initial strain
