- 摘 要
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(华森建筑与工程设计顾问有限公司 深圳 518054)
【提要】 工程设计遇到具有复杂应力场的非弯曲构件,如缺口梁、错洞剪力墙等构件时,设计人员通常根据工程经验,以构造措施保证其抗震性能,然而对这种构造措施的依据及其适用性缺乏更深入的研究。通过对拉压杆模型的介绍,结合我国现行规范给出适合我国规范的拉压杆模型计算参数和设计步骤。同时以错洞剪力墙为例说明利用拉压杆模型进行抗震设计的可行性,把结果和钢筋混凝土弹塑性有限元分析结果相比较,说明其优点及局限性。给出了若干应用拉压杆模型的设计工程实例,并对一些常用构造措施进行了讨论。
【关键词】 拉压杆模型 构造措施 错洞剪力墙 缺口梁
Application of Strutandtie Model on Reinforced Concrete Member Design/Wu Hui,Liu Weiya (Shenzhen Huasen Architecture & Engineering Design Consultants Ltd.,Shenzhen 518054,China)
Abstract:In engineering practices,designers often use details based on engineering experience to ensure the seismic performance of nonflexural members with complex stress fields,such as beam with dapped end and wall with staggered openings etc,but no further investigations are made on their basis and adaptability. By introducing the strutandtiemodel,the critical factors and design procedures which satisfy Chinese codes requirements are given. As an example,a wall with staggered openings is analyzed using strutandtie model and nonlinear finite element analysis. The comparison of both analytical results is performed to indicate the advantages and limitations of strutandtie model. Finally,some design examples and a discussion on some details are presented.
Keywords:strutandtie model;details;walls with staggered openings; beam with dapped end