Research on Mechanical Properties of Double-Faced Precast Concrete Superposed Shear Wall with Structural Steel Trusses Under Axial Compression
-
摘要: 通过对3片双面叠合混凝土剪力墙试件进行轴心受压试验和有限元参数分析,研究双面叠合混凝土剪力墙在轴心荷载作用下的破坏形态、变形以及极限承载力,分析了钢筋桁架与分布筋网片采用不同的连接方式对双面叠合混凝土剪力墙试件轴心受压性能的影响。试验结果表明:双面叠合混凝土剪力墙在轴心荷载作用下的破坏始于预制层和后浇层混凝土叠合面开裂,达到极限荷载时墙板两侧叠合面裂缝贯通,墙板局部区域混凝土压碎;本次试验中,钢筋桁架与分布筋网片采用绑扎连接方式的双面叠合混凝土剪力墙试件的极限承载力高于采用焊接连接方式的试件。双面叠合混凝土剪力墙试件的有限元计算结果与试验结果吻合良好;参数分析结果表明,增大预制-后浇混凝土叠合面摩擦系数和钢筋桁架腹筋直径可明显提高叠合墙板的极限承载力。
-
关键词:
- 双面叠合混凝土剪力墙 /
- 钢筋桁架 /
- 轴心受压试验 /
- 连接方式 /
- 有限元分析
Abstract: By conducting axial compression tests and finite element analysis on three double-faced precast concrete superposed shear wall(DPCW)specimens, the damage patterns, deformation and ultimate bearing capacity of double-faced precast concrete superposed shear walls under axial load were studied, and the effects of different connection methods between steel truss and distributed reinforcement mesh on the mechanical properties of double-faced precast concrete superposed shear wall specimens were analyzed. The test results showed that the damage of double-faced precast concrete superposed shear walls under axial load started from the cracking of the concrete laminated surface of the precast and post-cast layers, and when the ultimate load was reached, the cracks of laminated surface on both sides of wall slabs were penetrated, and concrete of wall slabs was crushed. In this test, the ultimate bearing capacity of the specimen of double-faced precast concrete superposed shear wall with tied connection of reinforcement joist and distribution bar mesh was higher than that of the specimen with welded connection. The finite element calculation results of double-faced precast concrete superposed shear wall specimens were in good agreement with the test results; the parameter analysis results showed that increasing the friction coefficient of precast-postcast concrete laminated surface and the diameter of web reinforcement of steel truss could significantly improve the ultimate bearing capacity of laminated wall slabs. -
[1] 唐菁菁,李志欣,梁文钊,等. 建筑业发展现状分析与趋势预测[J]. 土木工程与管理学报,2013,29(4):84-88. [2] BENAYOUNE A, SAMAD A A A, ALT A A A, et al. Response of precast reinforced composite sandwich panels to axial loading[J]. Construction and Building Materials, 2007, 21(3): 677-685. [3] NORIDAH M, HILMI M M. Testing of precast lightweight foamed concrete sandwich panel with single and double symmetrical shear truss connectors under eccentric loading[J]. Advanced Materials Research, 2011, 1450: 1107-1116. [4] 侯和涛, 叶海登, 马天翔, 等. 叠合整体式混凝土剪力墙轴心受压性能研究[J]. 建筑结构学报, 2016, 37(3): 76-85. [5] 黄成林. 半预制叠合混凝土剪力墙轴心受压性能研究[D]. 北京:北方工业大学, 2019. [6] 连星, 叶献国, 蒋庆, 等. 一种新型绿色住宅体系-叠合板式剪力墙体系[J]. 工业建筑,2010,40(6): 79-84,92. [7] 谷倩, 任靖, 张延宾, 等.双面叠合剪力墙平面外受力性能[J]. 建筑科学与工程学报, 2020, 37(4): 32-41. [8] 骆玉琦, 谷倩, 赵端锋, 等.带构造边缘构件的T形双面叠合剪力墙抗震性能研究[J].工业建筑,2021,51(9):90-97. [9] 王平山, 崔家春, 徐自然, 等. 双面叠合剪力墙结构力学性能研究[J].建筑结构, 2020, 50(18): 1-8. [10] 王晶秋. 不同轴压比双面叠合剪力墙抗震性能研究[D]. 大连:大连理工大学, 2019. [11] 薛伟辰, 李亚, 蔡磊, 等. 双面叠合混凝土剪力墙平面内和平面外抗震性能研究[J]. 工程力学,2018,35(5):47-53. [12] 中华人民共和国住房和城乡建设部.装配式混凝土建筑技术标准:GB/T 51231—2016[S].北京:中国建筑工业出版社,2017. [13] 中华人民共和国住房和城乡建设部.普通混凝土力学性能试验方法标准:GB/T 50081—2002[S].北京:中国建筑工业出版社,2003. [14] 中华人民共和国国家质量监督检验检疫总局.金属材料拉伸试验:第1部分:室温试验方法:GB/T 288.1—2010[S].北京:中国标准出版社,2011. [15] 中华人民共和国住房和城乡建设部.混凝土结构试验标准:GB/T 50152—2012[S].北京:中国建筑工业出版社,2012. [16] 聂建国, 王宇航. ABAQUS中混凝土本构模型用于模拟结构静力行为的比较研究[J]. 工程力学, 2013,30(4): 59-67. [17] 赵作周, 周剑, 侯建群, 等. 上下层插筋连接预制混凝土空心模剪力墙有限元分析[J]. 工程力学, 2017,34(1): 117-129. [18] 沈小璞, 张江山, 雷庆关, 等. 叠合板式剪力墙考虑叠合面摩擦滑移的破坏机理研究[J]. 建筑结构, 2018, 48(22): 78-84,94.
点击查看大图
计量
- 文章访问数: 162
- HTML全文浏览量: 22
- PDF下载量: 2
- 被引次数: 0