基于干式节点连接的装配式混凝土框架结构抗震性能评估

对于装配式混凝土框架结构,确保梁柱节点具有足够的刚度和强度对于结构的抗震安全十分重要。提出一种干式梁柱节点连接方式,同时对采用该节点的装配式混凝土框架结构整体进行了抗震性能分析。分析结果表明:采用的混凝土梁柱干式连接节点的滞回性能与现浇节点的滞回性能几乎一致,满足“等同现浇”的要求;采用干式梁柱连接节点的装配式混凝土框架结构的抗震性能良好,干式连接对结构整体抗震承载力和延性的削弱程度有限。

Seismic Performance Evaluation of Prefabricated Concrete Frame Structure Based on Dry Joint Connection

For the prefabricated concrete frame structure,it is very important to ensure that the beam-column joints have enough stiffness and strength for the seismic safety of the structure.A dry beam-column joint is proposed,and the seismic performance of the prefabricated concrete frame structure with this joint is analyzed.The results show that the hysteretic behavior of the dry connection joints is almost the same as that of the cast-in-place joints,which meets the requirement of"equivalent cast-in-place";the seismic performance of the prefabricated concrete frame structure with dry connection joints is good,and the weakening degree of the whole seismic bearing capacity and ductility of the structure with dry connection joints is limited.