装配式梁柱铰接框架-剪力墙结构体系性能研究

Research on performance of prefabricated beam⁃column hinged frame⁃shear wall structure system

现阶段装配式混凝土框架结构中梁柱节点一般采用湿连接的方式,施工效率低且节点连接难以保证质量。提出了一种新型结构体系——装配式混凝土梁柱铰接框架-剪力墙结构体系。预制梁柱采用干式连接形成铰接节点,增设剪力墙提高结构的抗震能力。此体系受力明确,构造简单,更符合装配化施工及工业化生产的要求。通过分析其受力特点,给出了此结构体系的设计原则,并对比分析了此结构体系在不同抗震设防烈度与建筑高度下的预制构件用量。结果表明:梁柱铰接框架-剪力墙结构按剪力墙结构的设计原则进行抗震设计,其梁柱按非抗震设计要求进行设计;在低烈度区、层数较低的平面尺寸较大的大型建筑中使用梁柱铰接框架-剪力墙结构在施工效率和经济性上都有较强的优越性。

At present,the beam-column joints in prefabricated concrete frame structures generally adopt the method of wet connection,which is inefficient and difficult to ensure the quality of joint connection.A new structural system,prefabricated concrete beam-column hinged frame-shear wall structure system was proposed.The prefabricated beams and columns are dry connected to form hinged joints,and shear walls are added to improve the seismic resistance capacity of the structure.This system has clear force and simple structure,and is more in line with the requirements of assembly construction and industrial production.The design principle of the structure system was given by analyzing its mechanical characteristics,and the amount of prefabricated components under different seismic fortification intensity and building height was compared and analyzed.The results show that the seismic design of beam-column hinged frame-shear wall structure is carried out according to the design principles of shear wall structure,and its beams and columns are designed according to the non-seismic design requirements.The use of beam-column hinged frame shear wall structure in large-scale buildings with low seismic fortification intensity,low floors and large plane size has strong advantages in construction efficiency and economy.