土木建筑与环境工程
土木建築與環境工程
토목건축여배경공정
Journal of Chongqing Jianzhu University
2015年
4期
12-18
,共7页
钢筋混凝土框架%顶层端节点%500 MPa 钢筋%抗震性能
鋼觔混凝土框架%頂層耑節點%500 MPa 鋼觔%抗震性能
강근혼응토광가%정층단절점%500 MPa 강근%항진성능
reinforced concrete frame%knee joint%500 MPa reinforcement%seismic performance
按照《混凝土结构设计规范》（GB 50010—2010）设计了6个配置500 MPa 纵筋的钢筋混凝土框架顶层端节点，并进行了低周反复加载抗震性能试验，验证了规范规定的抗震措施对配置500 MPa 钢筋的顶层端节点的有效性，分析了配置500 MPa 级钢筋的顶层端节点的受力特点、节点区的破坏形态以及节点的综合抗震性能，并与受力条件基本相同的配置 HRB335级纵筋节点的受力性能进行了对比，对采用不同延性指标评价配置不同强度钢筋节点的延性性能差异进行了讨论。
按照《混凝土結構設計規範》（GB 50010—2010）設計瞭6箇配置500 MPa 縱觔的鋼觔混凝土框架頂層耑節點，併進行瞭低週反複加載抗震性能試驗，驗證瞭規範規定的抗震措施對配置500 MPa 鋼觔的頂層耑節點的有效性，分析瞭配置500 MPa 級鋼觔的頂層耑節點的受力特點、節點區的破壞形態以及節點的綜閤抗震性能，併與受力條件基本相同的配置 HRB335級縱觔節點的受力性能進行瞭對比，對採用不同延性指標評價配置不同彊度鋼觔節點的延性性能差異進行瞭討論。
안조《혼응토결구설계규범》（GB 50010—2010）설계료6개배치500 MPa 종근적강근혼응토광가정층단절점，병진행료저주반복가재항진성능시험，험증료규범규정적항진조시대배치500 MPa 강근적정층단절점적유효성，분석료배치500 MPa 급강근적정층단절점적수력특점、절점구적파배형태이급절점적종합항진성능，병여수력조건기본상동적배치 HRB335급종근절점적수력성능진행료대비，대채용불동연성지표평개배치불동강도강근절점적연성성능차이진행료토론。
Based on Code for design of concrete structures (GB 50010—2010),six knee joints with HRB500 rebars on top story of reinforced concrete frame structure were designed and tests on their seismic behavior were conducted under reversed cyclic loading.The effectiveness of code provisions on seismic detailing of such knee joints of reinforced concrete frame was revealed. Mechanic properties,failure modes and comprehensive seismic performance of these top story knee joints reinforced with 500 MPa rebars was analyzed.Furthermore,these joints were compared with those similar joints reinforced with 335 MPa rebars.Different ductility index were used to discuss difference of ductility of joints reinforced with different strength rebars to provide reliable evidence for the application of 500 MPa rebars in the joints.
