配置环形钢筋的梁桥湿接缝承载力计算方法比较研究

林上顺; 暨邦冲; 何永波; 夏樟华

doi:10.13204/j.gyjzG20122307

配置环形钢筋的梁桥湿接缝承载力计算方法比较研究

doi: 10.13204/j.gyjzG20122307

1. 福建工程学院土木工程学院, 福州 350118;
2. 福州大学土木工程学院, 福州 350108

基金项目:

福建省自然科学基金项目（2019J01779）。

详细信息

作者简介:
林上顺,男,1972年出生,教授,博士。

通讯作者:
夏樟华,男,1980年出生,博士,副研究员,xiatian@fzu.edu.cn。

计量
- 文章访问数: 108
- HTML全文浏览量: 17
- PDF下载量: 2
- 被引次数: 0
出版历程
- 收稿日期: 2020-12-23
- 网络出版日期: 2022-04-24

Comparative Research on Calculation Methods for Bearing Capacity of Wet Joints of Beam Bridges Equipped with Circular Steel Bars

1. College of Civil Engineering, Fujian University of Technology, Fuzhou 350118, China;
2. College of Civil Engineering, Fuzhou University, Fuzhou 350108, China

摘要

摘要: 为研究配置环形钢筋的梁桥湿接缝承载力计算方法，系统收集该类湿接缝承载力试验资料和计算方法，发现：1）现有的接缝承载力计算方法均以试件的抗拉承载力为基础，主要区别在于核心混凝土区域抗拉强度的计算及试件抗拉承载力的控制因素；2）由Joergensen提出的塑性功模型计算方法得到的理论值与试验值更为接近，且数据离散性小，更为稳定；3） HE Z-Q拉压杆模型比其他模型更好地反映了环形钢筋湿接缝的破坏模式与受力机理。由于目前的计算方法与实际情况仍有一定的误差，建议今后仍然应从破坏模式及受力机理出发，推导出更适用于环形钢筋湿接缝承载力的计算方法。
- 桥梁工程 /
- 环形钢筋 /
- 湿接缝 /
- 承载力 /
- 计算方法
Abstract: In order to study the calculation method for the bearing capacity of wet joints of beam bridges equipped with circular steel bars, collected the test data and calculation methods were collected systematically, and it was found that:1) the existing calculation methods for the bearing capacity of joints were based on the bearing capacity of the specimen under tension, the main difference was the calculation of the tensile strength of the core concrete area and the control factors of the tensile strength of the specimen; 2) the theoretical values obtained by the plastic work model calculation method proposed by Joergensen was closer to the experimental values, and the data dispersion was small and more stable; 3) strut-and-tie model of HE Z-Q reflected the failure mode and stress mechanism of wet joints of circular steel bars better than other models. Since the current calculation method still had a certain error from the actual situation, it was recommended that the calculation method that was more suitable for the bearing capacity of the wet joints of beam equipped with circular steel bars should be derived from the failure mode and the stress mechanism in the future.
- bridge engineering /
- circular steel bar /
- wet joint /
- bearing capacity /
- calculation method

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参考文献(16)

[1]	ZALESOV A, KIRILLOV A, RUBIN O, et al. Calculation of the strength and design of welding loops and linear anchor joints in combined precast-in situ reinforced concrete members[J]. Hydrotechnical Construction, 1989, 23(2):120-124.
[2]	ONG K C G, HAO J B, PARAMASIVAM P. A strut-and-tie model for ultimate loads of precast concrete joints with loop connections in tension[J]. Construction and Building Materials, 2006, 20(3):169-176.
[3]	HE Z Q, MA Z J, CHAPMAN C E, et al. Longitudinal joints with accelerated construction features in decked bulb-tee girder bridges:Strut-and-tie model and design guidelines[J]. Journal of Bridge Engineering, 2013, 18(5):372-379.
[4]	JOERGENSEN H B, HOANG L C. Tests and limit analysis of loop connections between precast concrete elements loaded in tension[J]. Engineering Structures, 2013, 52:558-569.
[5]	JOERGENSEN H B, HOANG L C. Strength of loop connections between precast bridge decks loaded in combined tension and bending[J]. Structural Engineering International, 2015, 25(1):71-80.
[6]	董夏鑫, 李国平, 易道远, 等. 基于剪摩擦理论的U形筋接缝强度计算方法[J]. 中国市政工程, 2019, 203(2):92-96 ,150.
[7]	朱玉, 丁德豪. 预制混凝土梁湿接缝环形钢筋搭接长度研究[J]. 公路, 2015, 60(12):99-103.
[8]	RYU H K, CHANG S P, KIM Y J, et al. Crack control of a steel and concrete composite plate girder with prefabricated slabs under hogging moments[J]. Engineering Structures, 2005, 27(11):1613-1624.
[9]	RYU H K, KIM Y J, CHANG S P. Experimental study on static and fatigue strength of loop joints[J]. Engineering Structures, 2007, 29(2):145-162.
[10]	张菊辉, 黄帅, 管仲国. 预制小箱梁纵向U筋交错搭接接缝静载试验[J]. 中国公路学报, 2018, 31(12):115-123.
[11]	申雁鹏,郭文龙,韩之江,等.混凝土桥面板湿接缝纯弯破坏行为试验研究[J].桥梁建设,2019,49(3):34-39.
[12]	吴大健,段宝山,宋林.装配式钢-混组合梁纵向湿接缝设计研究[J].武汉理工大学学报(交通科学与工程版),2020,44(4):764-767.
[13]	张勇,曹素功,叶品,等.钢板梁桥U钢筋湿接缝力学性能试验研究[J].中国市政工程,2019(5):95-97,114.
[14]	王莉莉. 钢-混组合桥梁预制桥面板湿接缝构造及传力研究[D]. 西安:长安大学, 2017.
[15]	王伟,苏小卒,赵勇. 钢筋混凝土界面抗剪承载力计算方法比较研究[J]. 结构工程师, 2010(4):134-140.
[16]	CHAPMAN E C. Behavior of precast bridge deck joints with small bend diameter U-bars[D]. Knoxville:University of Tennessee, 2010.