钢筋活性粉末混凝土框架节点抗震性能试验研究

王德弘1,鞠彦忠2,郑文忠1

振动与冲击 ›› 2018, Vol. 37 ›› Issue (6) : 149-156.

PDF(2644 KB)
PDF(2644 KB)
振动与冲击 ›› 2018, Vol. 37 ›› Issue (6) : 149-156.
论文

钢筋活性粉末混凝土框架节点抗震性能试验研究

  • 王德弘1,鞠彦忠2,郑文忠1
作者信息 +

Experimental research on the seismic performance of reinforced reactive powder concrete frame joints

  • WANG Dehong1, JU Yanzhon,2, ZHENG Wenzhong1
Author information +
文章历史 +

摘要

活性粉末混凝土是一种具有超高强度、韧性和耐久性的水泥基复合材料,为了研究活性粉末混凝土框架节点的抗震性能,对4个活性粉末混凝土梁柱节点试件进行了低周反复荷载试验,研究了活性粉末混凝土梁柱节点的受剪破坏模式、承载力、滞回特性、延性、耗能、强度和刚度退化等抗震性能。结果表明,活性粉末混凝土框架节点具有较高的抗裂强度,节点区裂缝开展路径较多,多为细小裂缝,混凝土剥落较少,试件破坏时完整性较好;当达到最大荷载后,刚度退化和强度退化较为缓慢;节点的变形及耗能能力较强,试件破坏时的剪切变形为峰值荷载时变形的2.23~8.56倍,试件的平均等效粘滞阻尼系数为0.137,粘滞阻尼系数高于普通混凝土和高强混凝土节点。采用活性粉末混凝土可以改善框架节点的剪切延性和耗能能力等抗震性能,降低核心区箍筋率,便于施工。

Abstract

To study the seismic behavior of frame joints made of reactive powder concrete with ultrahigh strength, toughness and durability, 4 reinforced reactive powder concrete beamcolumn joints were tested under cyclic loads simulated seismic load conditions. The failure patterns, seismic bearing capacity, hysteretic characteristics, ductility, energy dissipating, strength and rigidity degeneration of the reactive powder concrete frame joints were analyzed. The test results show that, the shearcracking strength of the reactive powder concrete specimens is higher, and the development of surface crack exhibits the characteristics of multiple fine cracking and a little concrete spalling, and the specimens remain as an integral whole as the loading ends.The strength and rigidity degeneration rates are small. The deformation capacity and energy dissipation are well. When the failure is occurring, the shear deformation is the double of that under the peak load, and the averaging equivalent viscous damping coefficient of specimens is 0.137, which is higher than the equivalent viscous damping coefficient of normal and highstrength concrete joints. The use of reactive powder concrete can improve the seismic performances of frame joints, including the shear ductility, energy dissipation capacity and so on, and reduce the stirrup ratio in joint core, which is conducive to the construction.

关键词

框架中节点 / 活性粉末混凝土 / 抗震性能 / 拟静力试验

Key words

 interior frame joints / reactive powder concrete / seismic performance / quasi-static test

引用本文

导出引用
王德弘1,鞠彦忠2,郑文忠1. 钢筋活性粉末混凝土框架节点抗震性能试验研究[J]. 振动与冲击, 2018, 37(6): 149-156
WANG Dehong1, JU Yanzhon,2, ZHENG Wenzhong1. Experimental research on the seismic performance of reinforced reactive powder concrete frame joints[J]. Journal of Vibration and Shock, 2018, 37(6): 149-156

参考文献

[1]  唐九如, 杨开建, 周起敬. 钢纤维砼对框架节点性能的改善[J]. 建筑结构学报, 1989, 10(4): 37-44.
Tang Jiuru, Yang Kaijian, Zhou Qijing. Improvement on behaviour of frame Joints using steel fibrous reinforced conerete[J]. Journal of Building Structures, 1989, 10(4) : 37-44.
[2]  Hatem Hassan Ali Ibrahim. Stud Reinforcement in beam-column joints under seismic loads[D]. University of Calgary, 2011.
[3]  Richard P, Cheyrezy M. Reactive powder concretes with high ductility and 200–800 MPa compressive strength[C]. ACI Spring Convention: SP144-24, San Francisco: American Concrete Institute, 1994: 507-518.
[4]  N. Roux, C. Andrade, M. A. Sanjuan. Experimental study of durability of reactive Powder Concretes[J]. Journal of materials in civil engineering. 1996, 8(2):1-6.
[5]  郑文忠, 吕雪源. 活性粉末混凝土研究进展[J]. 建筑结构学报, 2015, 36(10): 44-58.
Zheng Wenzhong, Lv Xueyuan. Literature review of reactive powder concrete[J]. Journal of Building Structures, 2015, 36(10): 44-58.
[6]  曹霞, 彭金成, 金凌志. 预应力活性粉末混凝土简支梁受力性能试验研究[J]. 武汉理工大学学报, 2014, 36(01): 116-122.
Cao Xia, Peng Jincheng, Jin Lingzhi. Experimental research on mechanical performance of prestressed RPC beam[J]. Journal of Wuhan University of Technology, 2014, 36(01): 116-122.
[7]  鞠彦忠, 王德弘, 白俊峰. 活性粉末混凝柱抗震性能的试验[J]. 哈尔滨工业大学学报, 2013, 45(8): 111-116.
Ju Yanzhong, Wang Dehong, Bai Junfeng. Seismic performance of reactive powder concrete columns[J]. Journal of Harbin Institute of Technology, 2013, 45(8): 111-116.
[8]  Malik A, Foster S. Behavior of Reactive Powder Concrete Columns without Steel Ties[J]. Journal of Advanced Concrete Technology, 2008, 6(2): 377-386.
[9]  Malik A, Foster S. Carbon Fiber-reinforced polymer confined reactive powder concrete columns-experimental investigation [J]. ACI Structural Journal, 2010, 107(3): 263-271.
[10]  郑辉, 方志, 刘明. 预应力活性粉末混凝土箱梁抗剪性能试验研究[J]. 土木工程学报, 2015, 48(6): 51-62.
Zheng Hui, Fang Zhi, Liu Ming. Experimental study on shear behavior of prestressed reactive powder concrete box girders[J]. China Civil Engineering Journal, 2015, 48(6): 51-62.
[11]  郑文忠, 李莉, 卢姗姗. 钢筋活性粉末混凝土简支梁正截面受力性能试验研究[J]. 建筑结构学报, 2011, 32(6): 126-134.
Zheng Wenzhong, Li Li, Lu Shanshan. Experimental research on mechanical performance of normal section of reinforced reactive powder concrete beam[J]. Journal of Building Structures, 2011, 32(6): 126-134.
[12]  邓宗才, 陈春生, 陈兴伟. 混杂纤维活性粉末混凝土梁抗剪性能试验研究[J]. 土木工程学报, 2015, 48(5): 51-60.
Deng Zongccai, Chen Chunsheng, Chen Xingwei. Experimental research on the shear behaviors of hybrid fiber reinforced RPC beams[J]. China Civil Engineering Journal, 2015, 48(5): 51-60.
[13]  唐九如. 钢筋混凝土框架节点抗震[M]. 南京: 东南大学出版社, 1988.
Tang Jiuru. Seismic resistance of joints in reinforced concrete frames[M]. Nanjing: Southeast University Press, 1988.
[14]  JGJ 101-96建筑抗震试验方法规程[S]. 北京:中国建筑工业出版社, 1997.
JGJ 101-96 Specificating of Testing methods for earthquake resistant building[S]. Beijing: China Building Industry Press, 1997.
[15]  赵成文, 张殿惠, 王天赐, 等. 反复荷载下高强混凝土框架内节点抗震性能试验研究[J]. 沈阳建筑工程学院学报, 1993, 9(3): 260-268.
Zhao Chengwen, Zhang Diansheng, Wang Tianci, et. al. Experimental study on the aseismatic property of the beam-column joints in high-strength concrete frame under alternating load[J]. Journal of Shenyang Architectural and Civil Engineering Institute, 1993, 9(3): 260-268.
[16]  史科. 钢筋钢纤维高强混凝土梁柱节点抗震性能及计算方法[D]. 郑州: 郑州大学, 2016.
Shi Ke. Seismic Behavior and calculation method of steel fiber reinforced high-strength concrete beam-column joints[D]. Zhengzhou: Zhengzhou University, 2016.
[17]  Ganesan N, Indira P V, Sabeena M V. Behaviour of hybrid fibre reinforced concrete beam–column joints under reverse cyclic loads[J]. Materials & Design, 2014, 54: 686-693.
[18]  张浦. 基于软化桁架理论的RPC梁斜截面抗剪承载能力研究[D]. 北京: 北京交通大学, 2011.
Zhang Pu. Study on oblique section shear-bearing capacity of RPC beam based on softened truss theory[D]. Beijing: Beijing Jiaotong University, 2011.
[19]  朱伯龙. 结构抗震试验[M]. 北京: 地震出版社, 1989.
Zhu Bailong. Structure seismic test[M]. Beijing: Seismological Press, 1989.
[20]  陈诚. 陈诚. 钢筋混凝土框架边节点抗震性能试验研究[D]. 哈尔滨: 哈尔滨工业大学, 2009.
Chen Cheng. Experimental study on the seismic behavior of exterior joint of reinforced concrete frame[D]. Harbin: Harbin Institute of technology, 2009.
[21]  中国建筑科学研究院. 混凝土结构研究报告选集[C]. 北京: 中国建筑工业出版社, 1991
China Architecture Science Institute. Research reports of concrete structures[C]. Beijing: China Construction Industry Press, 1991
[22]  史庆轩, 王南, 昝帅, 等. 高强箍筋高强混凝土梁柱节点抗震性能试验研究[J]. 工程力学, 2015, 32(5): 102-110.
Shi Qingxuan, Wang Nan, Zan Shuai, et, al. Experimental study on seismic behavior of high-strength concrete frame joints with high-strength stirrups[J]. Engineering Mechanics, 2015, 32(5): 102-110.

PDF(2644 KB)

Accesses

Citation

Detail

段落导航
相关文章

/