装配整体式半刚性节点在地下工程中的数值分析  

Numerical Analysis of Semi-rigid Joints of Fabricated Concrete Structure in Underground Engineering

作　　者：王俊 迟恒 施良峰 吴峰 WANG Jun;CHI Heng;SHI Liangfeng;WU Feng(Ningbo Eastern New Town Development InvestmentLtd.,Ningbo,Zhejiang 315040,China;Shanghai Municipal Engineering Design Institute(Group)Co.,Ltd.,Shanghai 200092,China)

机构地区：[1]宁波东部新城开发投资有限公司,浙江宁波315040 [2]上海市政工程设计研究总院(集团)有限公司,上海200092

出　　处：《水利与建筑工程学报》2019年第1期233-238,共6页Journal of Water Resources and Architectural Engineering

摘　　要：基于宁波市东部新城中央公园工程的设计方案,对预制装配式结构进行数值模拟,以实现半刚性节点在地下装配式结构动力分析及设计中的程序化应用。构建此项目梁-柱半刚性节点力学模型,分析获得M-θ滞回曲线,并将其力学性能赋予整体结构模型中。采用MIDAS/Gen软件对装配式混凝土结构进行弹塑性动力时程分析,获取装配式结构的屈服准则、变形能力等抗震性能。通过对比现浇方案可得出,装配良好的梁柱构件具有较强的刚度、强度和变形恢复能力等性能,并且结构计算指标符合规范要求。In order to realize the design calculation programming of the application of semi-rigid joints in dynamic analysis of underground fabricated structures, the numerical simulation of the assembly parts in Ningbo East New Town Central Park project was carried out. Based on the design scheme, the semi-rigid mechanical model of beam-column joints was constructed in a model of M-θ hysteretic curve by numerical calculation. The mechanical properties obtained from finite-element computing were allocated to the engineering structures. Through the elastoplastic time history analysis of fabricated concrete structures, the yield principle and deformation capacity of the fabricated structure was caculated by Midas Gen. Through the comparative analysis of cast-in-place plan, we can conclude that well assembled components have strong stiffness, strength and deformation recovery ability etc., and can meet the relevant specification requirements.

关 键 词：地下装配式结构 半刚性节点 结构弹塑性时程分析 

分 类 号：TU313[建筑科学—结构工程]