登录
注册
E-alert
登录
注册
E-alert
Experimental Research on Seismic Performance of Precast Columns with Intermediate Connections
-
摘要: 设计并制作了一个中部节点连接预制柱试件及一个同尺寸现浇柱试件，并开展了拟静力试验，试验结果表明：中部节点连接预制柱最终破坏形态表现为柱底塑性铰区破坏及节点连接处型钢破坏，其滞回曲线饱满，具有与现浇柱相当的耗能性能；中部节点连接预制柱初始刚度略低于现浇柱，最终刚度基本与现浇柱趋于一致；中部节点连接预制柱延性系数为3.1，为现浇柱的89%，延性表现较弱，在连接界面未失效情况下，抗震性能与现浇柱相当。Abstract: A precast column with intermediate connections and a cast-in-place column of the same size were designed and manufactured, and the quasi-static test of the two specimens was conducted. The experimental results showed that the ultimate failure mode of the precast column with intermediate connections was the plastic hinge zone failure at the bottom of the column and the steel failure at the joint connection. The hysteresis curve of the precast column with intermediate connections was full, and the energy dissipation performance was equivalent to that of the cast-in-place column. The initial stiffness of the precast column with intermediate connections was slightly lower than that of the cast-in-place column, and the final stiffness was basically consistent with the cast-in-place column. The ductility coefficient of the precast column with intermediate connections was 3.1, which was 89% of the cast-in-place column, and the ductility performance was weak. When the connection interface did not fail, the seismic performance of the precast column was equivalent to that of the cast-in-place column.
-
Key words:
- precast column /
- pseudo-static test /
- energy dissipation capability /
- ductility
-
[1] 严薇,曹永红,李国荣.装配式结构体系的发展与建筑工业化[J].重庆建筑大学学报, 2004(5):131-136. [2] 田春雨,黄小坤,李然,等.装配式混凝土结构的研究与应用[J].工程质量, 2015, 33(4):25-30. [3] 陈子康,周云,张季超,等.装配式混凝土框架结构的研究与应用[J].工程抗震与加固改造, 2012, 34(4):1-11. [4] 罗青儿,张仟朋,程文瀼,等.装配整体式钢筋混凝土框架柱榫式接头的试验研究[J].工业建筑, 2008, 38(10):48-52, 47. [5] 汪梅,梁书亭,李刻铭,等.全预制齿槽连接框架柱的受力性能研究[J].工业建筑, 2010, 40(2):69-73. [6] 汪梅,吴炯,何孝春,等.钢筋混凝土全预制柱的受力分析[J].特种结构, 2011, 28(5):9-12, 21. [7] 刘展.新型装配整体式螺栓钢板箍框架柱优化设计研究[D].西安:西安建筑科技大学, 2013. [8] 卫碧洋.新型装配整体式柱的抗震性能研究[D].西安:西安建筑科技大学, 2014. [9] 赵勇,李锐,王晓锋,等.大直径高强钢筋套筒灌浆连接预制柱抗震性能试验研究[J].土木工程学报, 2017, 50(5):27-35, 71. [10] 何志坚.新型柱中螺栓连接预制柱抗震性能研究[D].重庆:重庆大学, 2019. [11] 张世江,郭子雄,刘阳,等.榫式连接拼装RC柱轴压性能数值分析[J].中南大学学报(自然科学版), 2020, 51(4):1097-1107. [12] 霍文武.法兰螺栓连接可拆卸型钢混凝土柱受力性能及设计方法研究[D].西安:西安建筑科技大学, 2021. [13] 中华人民共和国住房和城乡建设部.钢结构设计标准:GB 50017-2017[S].北京:中国建筑工业出版社, 2018. [14] 中华人民共和国住房和城乡建设部.混凝土物理力学性能试验方法标准:GB/T 50081-2019[S].北京:中国建筑工业出版社, 2019. -
点击查看大图
计量
- 文章访问数: 35
- HTML全文浏览量: 2
- PDF下载量: 4
- 被引次数: 0
下载:
