方钢管混凝土柱外置式环梁节点的试验及设计方法研究
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摘要
本文对自行研制的一种用于方钢管混凝土结构的新型外置式环梁节点,进行了三个环梁纵筋配筋量和形式各不相同的梁柱组合体试件在楼面恒载和侧向低周反复荷载共同作用下的试验。考察了梁柱组合体的宏观受力性能,以及不同配筋形式对环梁节点性能的影响,分析了试验现象及试件中钢筋应变发展规律。初步的试验结果表明,这种新型节点形式可以应用于实际工程。之后,提出了本节点形式应用于工程时初步的设计方法。
In this paper, a new type of connection composed of the RC ring beam located outside the concrete filled rectangular steel tubular column was developed. Three beam column assemblage specimens were tested, in which horizontal reversed cyclic load was exerted at the top of the columns accompanied by the simulated storey dead load exerted vertically at the bottom of the column. Structural behavior of the specimens and the influences of different reinforcement were investigated. The strain of the reinforcement in the specimens was also analyzed. The test and analysis show that this new type of connection can be used to engineering practice. According to the experimental and analytical results, primary design method was put forward as well.
In this paper, a new type of connection composed of the RC ring beam located outside the concrete filled rectangular steel tubular column was developed. Three beam column assemblage specimens were tested, in which horizontal reversed cyclic load was exerted at the top of the columns accompanied by the simulated storey dead load exerted vertically at the bottom of the column. Structural behavior of the specimens and the influences of different reinforcement were investigated. The strain of the reinforcement in the specimens was also analyzed. The test and analysis show that this new type of connection can be used to engineering practice. According to the experimental and analytical results, primary design method was put forward as well.
引文
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犤9犦GB50010混凝土结构设计规范犤S犦.
犤10犦李学平,吕西林.方钢管混凝土柱外置式环梁节点的联结面抗剪研究犤J犦.同济大学学报,2002,30(1).
犤11犦向黎明,吕西林,曹阳.新型钢管混凝土柱-梁节点抗震性能研究犤J犦.结构工程师,2001,(58):20-24.
犤12犦过镇海.钢筋混凝土原理犤M犦.北京:清华大学出版社,1999.
犤13犦GB50017—2002钢结构设计规范犤S犦.
犤14犦GB50011—2001建筑抗震设计规范犤S犦.
犤2犦张正国.方钢管砼中长轴压柱稳定分析和实用设计方法犤J犦.建筑结构学报,1993,14(4).
犤3犦韩林海.钢管混凝土结构犤M犦.北京:科学出版社,2000.
犤4犦吕西林,余勇.轴心受压方钢管混凝土短柱的受力性能研究:I试验犤J犦.建筑结构,1999,(10).
犤5犦余勇,吕西林.方钢管混凝土柱的三维非线性分析犤J犦.地震工程与工程振动,1999,19(1).
犤6犦吕西林,陆伟东.反复荷载作用下方钢管混凝土柱的抗震性能试验研究犤J犦.建筑结构学报,2000,21(2).
犤7犦周起敬,姜维山,潘泰华.钢与混凝土组合结构设计施工手册犤M犦.北京:中国建筑工业出版社,1991.
犤8犦沈在康.混凝土结构试验方法新标准应用讲评犤M犦.北京:中国建筑工业出版社,1994.
犤9犦GB50010混凝土结构设计规范犤S犦.
犤10犦李学平,吕西林.方钢管混凝土柱外置式环梁节点的联结面抗剪研究犤J犦.同济大学学报,2002,30(1).
犤11犦向黎明,吕西林,曹阳.新型钢管混凝土柱-梁节点抗震性能研究犤J犦.结构工程师,2001,(58):20-24.
犤12犦过镇海.钢筋混凝土原理犤M犦.北京:清华大学出版社,1999.
犤13犦GB50017—2002钢结构设计规范犤S犦.
犤14犦GB50011—2001建筑抗震设计规范犤S犦.
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