大连理工大学学报Issue(2)：171-178,8.DOI:10.7511/dllgxb201502008
预制装配式部分钢骨混凝土框架梁柱中节点抗震性能试验研究
Experimental study of seismic performance for interior beam-column joints of precast and discontinuous steel reinforced concrete frames
摘要
Abstract
The joint connection manner of precast concrete structure is the key to solve the problem of technology promotion at present.A new concept of precast and discontinuous steel reinforced concrete frame structure is put forward.In this new structure,the reinforced concrete frame is divided into two parts,which are precast column members and precast beam members.Steels are only installed in the connect region of members and the core region of beam and column.Steels in the concrete members are discontinuous and unreinforced steels are installed in the connection region.The low cyclic tests are performed for three interior joint specimens of precast and discontinuous steel reinforced concrete frame.The test results are compared with the data of two reinforced concrete frame interior joint specimens in the same working condition.The analyses of the damage law, hysteretic curve,bearing capacity,stiffness degradation and ductility are performed for five specimens of two types.Analytical results indicate that the bearing capacity of the precast and discontinuous steel reinforced concrete specimens is about three times that of the ordinary reinforced concrete specimens.Their degradations of bearing capacity and stiffness are slow and the ductility and energy dissipation are well.The design of prefabrication connection joints is reliable and their seismic performance is well,which is in line with the seismic design principles that joints should be strong and members should be weak.They are suitable for the site assembly construction of the precast and reinforced concrete frame structures.关键词
预制装配式部分钢骨混凝土/框架/梁柱中节点/抗震性能Key words
precast and discontinuous steel reinforced concrete/frame/interior beam-column joint/seismic performance分类
建筑与水利引用本文复制引用
程万鹏,宋玉普,王军..预制装配式部分钢骨混凝土框架梁柱中节点抗震性能试验研究[J].大连理工大学学报,2015,(2):171-178,8.基金项目
国家自然科学基金资助项目(重点项目90815026) （重点项目90815026）
