doi:

DOI: 10.3724/SP.J.1249.2017.03245

Journal of Shenzhen University Science and Engineering (深圳大学学报理工版) 2017/34:3 PP.245-251

Analysis of axial bearing capacity of encased reactive powder concrete composite steel columns


Abstract:
We use three levels of mechanical properties of reactive powder concrete (RPC) to produce three groups of encased RPC composite columns with longitudinal reinforcement steel, and set up shear pin and then test the performance of axial bearing capacity. The results show that steel and RPC have strong adhesion. The protective layer of RPC is not peeled off when specimen damage occurs, which means that RPC has a good overall performance. According to the experimental phenomena, we propose five different processes of the composite column under the axial load: the elastic stage, the anti-slip stage, the cooperative working stage, the plastic stage and the failure stage. The main damage form is the splitting failure at column ends. The advantages of RPC and steel can be fully developed. The approximate bearing capacity formula of the composite structure is given.

Key words:structural engineering,reactive powder concrete,no longitudinal reinforcement,steel reinforced concrete columns,axial compression test,splitting failure

ReleaseDate:2017-06-16 14:08:43



[1] 杨 剑,汪金胜,彭 鑫. RPC在无砟轨道中的应用研究与展望[J]. 铁道科学与工程学报,2015,12(1):53-58. Yang Jian,Wang Jinsheng,Peng Xin. Application and outlook of RPC in ballastless track[J].Journal of Railway Science and Engineering,2015,12(1): 53-58.(in Chinese)

[2] 林震宇,吴炎海,沈祖炎. 圆钢管活性粉末混凝土轴压力学性能研究[J].建筑结构学报,2005(4):52-57. Lin Zhenyu,Wu Yanhai,Shen Zuyan.Research on behaveor of RPC filled circular steel tube column subjected to axial compression[J]. Journal of Building Structures, 2005(4): 52-57.(in Chinese)

[3] 朱 倩,赵均海,张常光,等.考虑界面黏结与尺寸效应的钢管活性粉末混凝土短柱轴压承载力统一解[J].工业建筑,2016(2):145-151. Zhu Qian,Zhao Junhai,Zhang Changguang,et al. Unified solutions of axial compression bearing capacity for RPC filled steel tubular stub columns with interface bond and size effect[J]. Industrial Construction,2016(2):145-151. (in Chinese)

[4] 王 钧,王志彬,李 论. 配有钢纤维RPC免拆柱模的钢筋混凝土短柱轴压力学性能[J].建筑科学与工程学报,2016(2):98-106. Wang Jun,Wang Zhibin,Li Lun.Mechanical behavior of reinforced concrete short colums with steel fiber RPC column permanent template subjected to axial compression[J].Journal of Architecture and Civil Engineering,2016(2):98-106.(in Chinese)

[5] 郑文忠,李 莉,卢姗姗.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):125-134. 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): 125-134.(in Chinese)

[6] 郑文忠,王 睿,王 英.活性粉末混凝土热工参数试验研究[J].建筑结构学报,2014,35(9):107-114. Zheng Wenzhong,Wen Rui,Wang Ying.Experimental study on thermal parameter of reactive powder concrete[J]. Journal of Building Structures,2014,35(9): 107- 114.(in Chinese)

[7] 李海艳,王 英,郑文忠.高温后活性粉末混凝土横向变形性能[J].哈尔滨工业大学学报自然科学版,2013,45(4):1-5. Li Haiyan,Wang Ying,Zheng Wenzhong.Transverse deformation properties of reactive powder concrete after exposure to high temperature[J]. Journal of Harbin Institute of Technology Natural Science Edition,2013,45(4): 1-5.(in Chinese)

[8] 戎志丹,孙 伟,陈惠苏,等.超高性能水泥基材料的力学行为及机理分析[J].深圳大学学报理工版,2010,27(1): 88-94. Rong Zhidan,Sun Wei,Chen Huisu, et al. Mechanical behaviors and microstructure mechanism analysis of ultrahigh performance cementitious composites[J]. Journal of Shenzhen University Science and Engineering,2010, 27(1): 88-94.(in Chinese)

[9] 孙 伟,焦楚杰.活性粉末混凝土冲击拉伸试验研究[J].广州大学学报自然科学版,2011,10(1)42-47. Sun Wei,Jiao Chujie. Experimental study on impact tensile behavior of reactive powder concrete[J]. Journal of Guangzhou University Natural Science Edition,2011,10(1) 42-47.(in Chinese)

[10] 季 韬,陈宝春,庄一舟,等.活性粉末混凝土抗裂性能试验研究[J].福州大学学报自然科学版,2011,39(3):434-437. Ji Tao,Chen Baochun,Zhuang Yizhou,et al. Study for the cracking resistant behavior of reactive powder concrete[J].Journal of Fuzhou University Natural Science Edition,2011,39(3):434-437.(in Chinese)

[11] 李俊华,李玉顺,王建民,等.型钢混凝土柱粘结滑移本构关系与粘结滑移恢复力模型[J].土木工程学报,2010,43(3):46-52. Li Junhua,Li Yushun,Wang Jianmin,et al.Bond-slip constitutive relation and bondslip resilience model of shape-steel reinforced concrete columns[J]. China Civil Engineering Journal,2010,43(3): 46-52.(in Chinese)

[12] Mirza O,Uy B.Behaviour of headed stud shear conncetors for composite steel concrete beams at elevated temperature[J]. Journal of Constructional Steel Research, 2009,65(3): 662-674.

[13] 李俊华,俞 凯,邱栋梁,等. 高温下带栓钉连接件型钢混凝土界面剪力传递性能研究[J]. 建筑结构学报, 2014,35(9): 107-114. Li Junhua,Yu Kai,Qiu Dongliang,et al. Study on force transfer behavior of S-RC members with stud shear connectors at elevated temperatures[J].Journal of Building Structures,2014,35(9): 107-114.(in Chinese)

[14] 王国锋.带栓钉连接件的型钢混凝土纵向剪力传递性能研究[D].宁波:宁波大学,2013. Wang Guofeng. Research on the force transfer behavior of SRC members with stud shear connectors[D]. Ningbo:Ningbo University,2013.(in Chinese)

[15] 何 峰,黄政宇.200~300 MPa活性粉末混凝土(RPC)的配制技术研究[J].混凝土与水泥制品,2000,4:3-7. He Feng,Huang Zhengyu. Research on preparation of 200~300 MPa reactive powder concrete(RPC) [J].China Concrete and Cement Products,2000,4:3-7.(in Chinese)

[16] GBT 31387—2015 活性粉末混凝土[S]. GB 31387—2015 Reactive powder concrete[S].(in Chinese)

[17] 吕雪源,王 英,符程俊,等.活性粉末混凝土基本力学性能指标取值研究[J].哈尔滨工业大学学报,2014,46 (10): 1-9. Lü Xueyuan,Wang Ying,Fu Chengjun,et al.Research on basic mechanical property indexes of reactive powder concrete[J]. Journal of Harbin Institute of Technology,2014,46(10): 1-9.(in Chinese)

[18] GB/T 228.1—2010 金属材料室温拉伸试验方法[S]. GB/T 228.1—2010 Metallic materials-tensile testing at ambient temperature [S].(in Chinese)

[19] Chen Lihua,Dai Jixiang,Jin Qiliang,et al.Refining bondslip constitutive relationship between checkered steel tube and concrete[J]. Construction and Building Materials,2015,79:153-164.

[20] Yazdan M,Hsu C T,Punurai S.Local bond-slip behavior between cold-formed metal and concrete[J]. Engineering Structures,2014,69: 271-284.

[21] GB 50010—2010 混凝土结构设计规范[S]. GB 50010—2010 Code for design of concrete structures[S].(in Chinese)

[22] YB 9082—2006 钢骨混凝土结构技术规程[S]. YB 9082—2006 Technical specification steel-Reinforced concrete structures[S].(in Chinese)