连体结构弹塑性时程分析的初始内力条件

DISCUSSION ON INITIAL INTERNAL FORCE CONDITIONS IN ELASTICOPLASTICITY TIME-HISTORY ANALYSIS OF CONNECTED STRUCTURE

以某高层连体结构为例,分析对连体结构弹塑性时程分析结果影响显著的两个初始条件及其对结构初始内力的影响,通过工程弹塑性时程分析结果对比,证实了此类结构以施工过程分析结果作为结构弹塑性时程分析初始条件的必要性,最后针对连体结构提出了减少结构附加内力的措施。

A high-rise connected structure is taken as example to analyze two initial conditions producing obvious influence on elasticoplasticity time-history analysis result of connected structure and their influence on initial internal force of the structure. After comparison among engineering elasticoplasticity time-history analysis results, it is proved that construction procedure analysis result used as initial condition for elasticoplasticity time-history analysis is necessary for this connected structure. Measures are put forward for reducing the additional internal force on the connected structure.