项目名称: 新型半刚性节点网壳结构的动力性能及其抗震设计方法研究
项目编号: No.51308153
项目类型: 青年科学基金项目
立项/批准年度: 2014
项目学科: 建筑科学
项目作者: 马会环
作者单位: 哈尔滨工业大学
项目金额: 25万元
中文摘要: 装配式半刚性节点网壳外形美观、施工速度快、定位精度高,应用前景非常可观。然而,半刚性节点网壳结构的动力性能及其抗震设计方法研究尚属空白,成为制约此类结构广泛应用于工程实际的关键问题。为此,申请者以前期研究为基础,对新型半刚性节点网壳结构的动力性能和抗震设计方法展开深入系统的研究,主要内容包括:(1)研发出适用于矩型钢管或工字钢等构件的新型装配式半刚性节点;(2)通过试验和数值模拟等手段对新型半刚性节点的空间滞回性能展开研究;(3)开展新型半刚性节点网壳结构动力性能的试验研究,并建立动力荷载作用下结构的精细化数值分析模型,针对半刚性节点网壳结构的抗震性能,展开大规模的参数化分析;(4)提出合理有效的半刚性节点网壳结构的抗震设计方法。通过本项目的研究,建立起可应用于工程实际的较完善的半刚性节点网壳结构抗震设计理论与设计方法,为新型半刚性节点网壳结构的工程应用提供可靠的理论基础与技术保障。
中文关键词: 半刚性节点;试验;理论模型;弯矩-转角曲线;地震内力系数
英文摘要: The latticed shells with semi-rigid joints have quite different mechanical behaviour from those assembled by rigid or pin joints. Semi-rigidly jointed spatial structures, with merits such as beautiful appearance, construction convenience and high fabrication accuracy, etc., possess a wide-range prospect of engineering applications. However, the lagged dynamic performance and seismic design method for the semi-rigidly jointed spatial structures limit the engineering applications of this kind of structures. As a matter of fact, on the basis of previous studies, the dynamic performance and seismic design methodof the new semi-rigid joints and the dynamic stability of the latticed shells are investigated in detail. The main content of this study includes: i) some new assemble semi-rigid joints will be developed to connect the rectangular steel members or I-steel members; ii) the hysteretic behavior of the new semi-rigid joitns will be investigated through the experimental and numerical study; iii) the dynamci performances of the latticed shells will be investigated through the structural experiments, and the delicate numerica model of the latticed shells with semi-rigid will be established to investigate their dynamic peformance,the seismic performance of the semi-rigidly jointed latticed shells will be investigated
英文关键词: semi-rigid joint;test;analytical model;moment-rotation curve;seismic force coefficient