Experimental investigation of force transmission performance in joint of steel truss web member-concrete composite truss arch
-
摘要:
为研究新型钢桁腹杆-混凝土组合桁式拱节点的承载力，并为节点剪力连接件的设置提供依据，以乌蒙山大桥为工程背景，开展了4个设置不同剪力连接件的节点试验研究；考察了节点试件的破坏模式及承载力，对比分析了不同剪力连接件的传力效果，并进行了现有规范中剪力连接件承载力计算方法的适用性对比分析。分析结果表明：各节点试件均发生受压腹杆及受压腹杆连接处节点板的屈曲破坏，节点板与混凝土界面黏结良好，未出现破坏现象；各节点试件承载力均大于2倍设计荷载，满足设计要求；剪力连接件能够将弦杆型钢所受腹杆轴力传递给弦杆混凝土，且对节点中心以下1倍腹杆宽度范围内影响最大；贯穿钢筋的传力效果较栓钉更好，仅设置贯穿钢筋和同时设置贯穿钢筋与栓钉的传力效果差异很小，从而得提出适用于贯穿钢筋和栓钉抗剪承载力计算的建议规范。研究成果可为钢桁腹杆-混凝土组合桁式拱节点的设计提供参考。
Abstract:To investigate the bearing capacity of a novel steel truss web member-concrete composite arch joint, and to provide a basis for arrangement of shear connectors of the joint, tests were conducted on four joint specimens with different shear connectors based on the engineering background of the Wumengshan Bridge. The failure modes and bearing capacity of the joint specimens were examined. The force transmission performance of the different shear connectors was comparatively analyzed. The applicability of existing code-based methods for calculating the bearing capacity of the shear connectors was comparatively analyzed. The analytical results show that all joint specimens exhibit buckling failure in the compressed web members and the gusset plates at the connections of the compressed web members. The interfacial bonding between the gusset plate and the concrete remains intact, with no signs of failure observed. All joint specimens exhibit bearing capacities exceeding twice the design load, thereby meeting the design requirements. The shear connectors effectively transfer the axial force from the steel chord, which is applied by a web member, to the concrete chord, and the most significant force transmission occurs within a range equal to one width of web member below the joint center. Penetrating steel bars present a superior force transmission performance compared to studs, and the difference in force transmission between a specimen with only penetrating steel bars and that with both penetrating steel bars and studs is very small. The recommended specifications applicable to the calculation of shear bearing capacities of penetrating steel bars and studs are presented. The research findings can provide reference for the design of steel truss web member-concrete composite truss arch joints.
-
图 8 应变和位移测点布置（单位：mm）
Figure 8. Arrangement of strain and displacement measuring points(unit: mm)
图 10 钢-混凝土接触面凿开后照片
Figure 10. Photograph of the steel-concrete interface after chiseling
图 16 K1与K0试件的弦杆混凝土应变比值
Figure 16. Concrete strain ratio of chord members between specimens K1 and K0
图 17 K2与K0试件弦杆混凝土应变比值
Figure 17. Concrete strain ratio of chord members between specimens K2 and K0
图 18 K1与K2试件弦杆混凝土应变比值
Figure 18. Concrete strain ratio of chord members between specimens K1 and K2
图 19 K3与K1试件弦杆混凝土应变比值
Figure 19. Concrete strain ratio of chord members between specimens K3 and K1
表 1 材料力学性能
Table 1. Mechanical properties of materials
材料 fy/MPa fu/MPa Es/GPa Q345 405.5 561.3 208 HPB300 335.2 464.1 210 HRB400 440.6 628.2 202 栓钉 354.8 487.5 205 
下载: 导出CSV
表 2 抗剪承载力计算结果比较
Table 2. Comparison of calculation results of shear bearing capacity
规范 Vd/kN 贯穿钢筋 栓钉 Vu，p/kN Vp/kN Vp/Vd Vu，s/kN Vs/kN Vs/Vd GB 50917—2013 382.2 86.6 606.2 1.59 26.2 524.0 1.37 JTG/T D64-01—2015 382.2 123.2 862.4 2.26 26.8 536.0 1.40 EN 1994-2 382.2 114.7 802.9 2.10 24.5 490.0 1.28
下载: 导出CSV
-
[1] 陈宝春, 刘君平. 世界拱桥建设与技术发展综述[J]. 交通运输工程学报, 2020, 20(1): 27-41. doi: 10.19818/j.cnki.1671-1637.2020.01.002CHEN Bao-chun, LIU Jun-ping. Review of construction and technology development of arch bridges in the world[J]. Journal of Traffic and Transportation Engineering, 2020, 20(1): 27-41. doi: 10.19818/j.cnki.1671-1637.2020.01.002 [2] 刘君平, 谢云鹏, 熊世伟, 等. UHPC蝶形腹板混凝土拱桥试设计[J]. 长安大学学报(自然科学版), 2025, 45(2): 75-84.LIU Jun-ping, XIE Yun-peng, XIONG Shi-wei, et al. Trial design of concrete arch bridge with UHPC butterfly web[J]. Journal of Chang'an University (Natural Science Edition), 2025, 45(2): 75-84. [3] 陈宝春, 牟廷敏, 陈宜言, 等. 我国钢-混凝土组合结构桥梁研究进展及工程应用[J]. 建筑结构学报, 2013, 34(增1): 1-10.CHEN Bao-chun, MU Ting-min, CHEN Yi-yan, et al. State-of-the-art of research and engineering application of steel-concrete composite bridges in China[J]. Journal of Building Structures, 2013, 34(S1): 1-10. [4] 黄卿维, 韦建刚, 陈宝春, 等. 420 m跨径SRC-钢腹杆组合箱拱桥试设计研究[J]. 福州大学学报(自然科学版), 2011, 39(6): 936-940.HUANG Qing-wei, WEI Jian-gang, CHEN Bao-chun, et al. Trial-design research on 420 m SRC-steel web composite box arch bridge[J]. Journal of Fuzhou University (Natural Science Edition), 2011, 39(6): 936-940. [5] 韦建刚, 牟廷敏, 缪锋, 等. 钢腹杆-混凝土新型组合箱拱桥试设计[J]. 交通科学与工程, 2009, 25(2): 40-45.WEI Jian-gang, MU Ting-min, MIAO Feng, et al. Trial-design on new-type composite box arch bridge with steel truss webs and concrete flanges[J]. Journal of Transport Science and Engineering, 2009, 25(2): 40-45. [6] 吴明军. 420 m跨径SRC-钢腹杆组合拱试设计研究[D]. 福州: 福州大学, 2010.WU Ming-jun. Trial-design research on 420 m combination arch bridge with SRC-steel web members[D]. Fuzhou: Fuzhou University, 2010. [7] 徐港宗. 钢桁腹杆-混凝土组合拱受力性能研究[D]. 福州: 福州大学, 2023.XU Gang-zong. Research on mechanical performance of steel truss web-concrete composite arch[D]. Fuzhou: Fuzhou University, 2023. [8] 罗霞, 余昕烨, 韦建刚, 等. 钢管约束超高性能混凝土加固RC墩柱抗震性能[J]. 交通运输工程学报, 2025, 25(5): 234-249. doi: 10.19818/j.cnki.1671-1637.2025.05.016LUO Xia, YU Xin-ye, WEI Jian-gang, et al. Seismic performance of RC columns strengthened by steel tube-confined ultra-high performance concrete[J]. Journal of Traffic and Transportation Engineering, 2025, 25(5): 234-249. doi: 10.19818/j.cnki.1671-1637.2025.05.016 [9] TANIS J M. Bras de la Plaine Bridge, Reunion Island, France[J]. Structural Engineering International, 2003, 13(4): 259-262. doi: 10.2749/101686603777964388 [10] SATO Y, HINO S, SONODA Y, et al. Study on load transfer mechanism of the joint in hybrid truss bridge[J]. Kozo Kogaku Ronbunshu, 2008, 54: 778-785. [11] JUNG K H, KIM J J, YI J W, et al. Development and evaluation of new connection systems for hybrid truss bridges[J]. Journal of Advanced Concrete Technology, 2013, 11(2): 61-79. doi: 10.3151/jact.11.61 [12] WANG C Y, YIN S P, WANG B X, et al. Research on the transverse flexural performance of T-PBL joints between corrugated steel webs and concrete slabs[J]. Structures, 2022, 44: 1057-1069. doi: 10.1016/j.istruc.2022.08.069 [13] 贺君, 王梓桐, 贺耀北, 等. 装配式钢-混组合梁可拆卸剪力连接件研究综述[J]. 交通运输工程学报, 2025, 25(5): 180-207. doi: 10.19818/j.cnki.1671-1637.2025.05.013HE Jun, WANG Zi-tong, HE Yao-bei, et al. Research review on demountable shear connectors for prefabricated steel-concrete composite beams[J]. Journal of Traffic and Transportation Engineering, 2025, 25(5): 180-207. doi: 10.19818/j.cnki.1671-1637.2025.05.013 [14] WEI J G, FENG Y, CHEN B C, et al. Tests of a composite box arch having steel truss web and concrete flange under unsymmetrical in-plane loads[C]//CHEN B C, WEI J G. Proceedings of the 6th International Conference on Arch Bridges. Basel: Springer Nature, 2010: 611-5. [15] 周凌宇, 贺桂超. 大跨度钢-混凝土组合桁架铁路桥端节点模型试验研究[J]. 土木工程学报, 2012, 45(1): 92-99.ZHOU Ling-yu, HE Gui-chao. Model test for the end joint of long-span steel-concrete composite truss railway bridges[J]. China Civil Engineering Journal, 2012, 45(1): 92-99. [16] 周凌宇, 贺桂超. 不同比例外接式钢-混凝土组合桁架节点的研究[J]. 四川大学学报(工程科学版), 2012, 44(2): 9-15.ZHOU Ling-yu, HE Gui-chao. Study on steel-concrete composite joints with two kinds of scale[J]. Journal of Sichuan University (Engineering Science Edition), 2012, 44(2): 9-15. [17] 周凌宇, 王海波, 贺桂超. 采用PBL连接件的组合桁架节点受力性能[J]. 中南大学学报(自然科学版), 2012, 43(7): 2762-2767.ZHOU Ling-yu, WANG Hai-bo, HE Gui-chao. Experiment for mechanical properties on steel-concrete composite truss joints with PBL connectors[J]. Journal of Central South University (Science and Technology), 2012, 43(7): 2762-2767. [18] 周凌宇, 张花, 贺桂超. 耳板式钢-混凝土组合桁架节点力学性能试验研究[J]. 中国铁道科学, 2011, 32(6): 41-47.ZHOU Ling-yu, ZHANG Hua, HE Gui-chao. Experimental research on the mechanical properties of the steel-concrete composite truss joint with ear plate[J]. China Railway Science, 2011, 32(6): 41-47. [19] 王海波, 李国提, 尹国安. 钢-混凝土组合桁架外接式节点优化分析[J]. 铁道科学与工程学报, 2015, 12(3): 616-623.WANG Hai-bo, LI Guo-ti, YIN Guo-an. The optimization analysis of external steel-concrete composite truss[J]. Journal of Railway Science and Engineering, 2015, 12(3): 616-623. [20] 王海波, 杜元涛. 钢-混组合桁架节点处PBL剪力键群受力性能研究[J]. 中国铁道科学, 2016, 37(2): 33-40.WANG Hai-bo, DU Yuan-tao. Mechanical behaviors of PBL shear connector group at steel-concrete composite truss joints[J]. China Railway Science, 2016, 37(2): 33-40. [21] 端茂军, 刘钊, 张建东, 等. 钢桁腹混凝土组合结构桥梁新型PBL-钢管节点试验研究[J]. 东南大学学报(自然科学版), 2016, 46(3): 572-577.DUAN Mao-jun, LIU Zhao, ZHANG Jian-dong, et al. Experimental study on new PBL-steel tube joint for steel truss-webbed concrete slab composite bridges[J]. Journal of Southeast University (Natural Science Edition), 2016, 46(3): 572-577. [22] 邵旭东, 陈玉宝, 何广, 等. 钢-UHPC组合桁式拱桥拱肋与腹杆节点性能试验研究[J]. 土木工程学报, 2022, 55(5): 54-66.SHAO Xu-dong, CHEN Yu-bao, HE Guang, et al. Experimental study on performance of joints between arch ribs and web members of steel-UHPC composite truss arch bridge[J]. China Civil Engineering Journal, 2022, 55(5): 54-66. [23] SHAO X D, HE G, SHEN X J, et al. Conceptual design of 1000 m scale steel-UHPFRC composite truss arch bridge[J]. Engineering Structures, 2021, 226: 111430. doi: 10.1016/j.engstruct.2020.111430 [24] 刘君平, 胡治华, 罗霞, 等. 钢腹杆-劲性骨架混凝土弦杆组合拱节点受力性能试验[J]. 中国公路学报, 2017, 30(2): 69-76.LIU Jun-ping, HU Zhi-hua, LUO Xia, et al. Test on mechanical performance of connections in steel brace-steel reinforced concrete (SRC) chord composite truss arch[J]. China Journal of Highway and Transport, 2017, 30(2): 69-76. [25] 刘君平, 杨倩, 刘华龙, 等. 钢管混凝土桁肋内栓钉K型节点应力集中特性[J]. 交通运输工程学报, 2024, 24(6): 106-120. doi: 10.19818/j.cnki.1671-1637.2024.06.007LIU Jun-ping, YANG Qian, LIU Hua-long, et al. Stress concentration characteristics of concrete-filled steel tubular truss-rib K-joint with inner studs[J]. Journal of Traffic and Transportation Engineering, 2024, 24(6): 106-120. doi: 10.19818/j.cnki.1671-1637.2024.06.007 [26] 姜磊, 刘永健, 周绪红, 等. 钢管混凝土节点承载力计算方法[J]. 中国公路学报, 2022, 35(6): 86-100.JIANG Lei, LIU Yong-jian, ZHOU Xu-hong, et al. Calculation method for the bearing capacity of concrete-filled steel tube joints[J]. China Journal of Highway and Transport, 2022, 35(6): 86-100. [27] 吴庆雄, 罗健平, 陈康明, 等. 高强螺栓止裂法提升钢管K型节点抗疲劳性能研究[J]. 交通运输工程学报, 2026, 26(05): 179-192.Qing-xiong, LOU Jian-ping, CHEN Kang-ming, et al. Research on improving the fatigue resistant performance of circular hollow section K-joint by high-strength bolt stop-hole method[J]. Journal of Traffic and Transportation Engineering, 2026, 26(05): 179-192. [28] 陈宝春, 黄文金. 钢管混凝土K形相贯节点极限承载力试验研究[J]. 土木工程学报, 2009, 42(12): 91-98.CHEN Bao-chun, HUANG Wen-jin. Experimental study on ultimate bearing capacity of CFST directly-welded K-joints[J]. China Civil Engineering Journal, 2009, 42(12): 91-98. [29] 陈伟乐, 刘震北, 刘双, 等. 狮子洋大桥整体节点足尺模型静载试验[J]. 交通运输工程学报, 2025, 25(3): 65-81. doi: 10.19818/j.cnki.1671-1637.2025.03.004CHEN Wei-le, LIU Zhen-bei, LIU Shuang, et al. Full-scale model static tests of integral joint on the Shiziyang Bridge[J]. Journal of Traffic and Transportation Engineering, 2025, 25(3): 65-81. doi: 10.19818/j.cnki.1671-1637.2025.03.004 -
计量
- 文章访问数: 66
- HTML全文浏览量: 38
- PDF下载量: 26
- 被引次数: 0
