高温后半套筒灌浆连接循环荷载下力学性能研究

史佳益; 李俊华; 陈平均; 郭菲; 王维宸

doi:10.3724/j.gyjzG25031101

高温后半套筒灌浆连接循环荷载下力学性能研究

doi: 10.3724/j.gyjzG25031101

宁波大学土木工程与地理环境学院, 浙江宁波 315211

基金项目:

浙江省自然科学基金重点项目（LZ22E080002）；国家自然科学基金项目（52578589）；宁波市自然科学基金重点项目（2022J068）。

详细信息

作者简介:
史佳益，硕士研究生，主要从事钢与混凝土组合结构研究，sjy15867511350@163.com。

通讯作者:
李俊华，博士，教授，博士生导师，主要从事组合结构和装配式结构研究，lijunhua@nbu.edu.cn。

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出版历程
- 收稿日期: 2025-03-11
- 网络出版日期: 2026-08-31
- 刊出日期: 2026-07-20

Research on the Mechanical Properties of Half-Grouted Sleeve Connections Under Cyclic Loading After High-Temperature Exposure

School of Civil & Environmental Engineering and Geography Science, Ningbo University, Ningbo 315211, China

摘要

摘要: 为研究高温对半套筒灌浆连接在地震作用下力学性能的影响，制备了30个半套筒灌浆试件，分别在不同温度下加热后进行高应力反复拉压和大变形反复拉压试验。通过试验，分析了高温后连接件在地震作用下的失效模式、承载性能及黏结特性。结果表明：在相同温度条件下，套筒灌浆连接在两种加载模式下的破坏模式具有一致性，当温度不超过400 ℃时，破坏模式主要为套筒外部灌浆端钢筋断裂；超过600 ℃时，转变为灌浆料与钢筋之间的黏结失效破坏；随着受火温度的升高，灌浆料与钢筋的材料性能逐渐退化，试件极限抗拉强度、黏结应力和延性均呈现下降的趋势，且大变形反复加载试件的下降幅度明显高于高应力反复加载试件。最后，通过统计回归，提出了高温后半套筒灌浆连接在两种反复加载下的黏结应力计算公式，计算结果与试验的最大误差不超过15%。
- 半套筒灌浆连接 /
- 高温后 /
- 大变形反复拉压 /
- 高应力反复拉压 /
- 力学性能
Abstract: To investigate the effects of high temperature on the mechanical properties of half-grouted sleeve connections（HGSCs） under seismic loading， thirty HGSC specimens were prepared. These specimens were heated to various target temperatures and then subjected to two loading types： high-stress repeated tension-compression tests and large-deformation repeated tension-compression tests. Through tests， this study examined the failure modes， bearing capacity， and bonding characteristics of connectors under seismic loading after exposure to high temperatures. The test results indicated that under the same temperature conditions， the grout-filled sleeve connections exhibited consistent failure modes under the two loading modes. When the exposure temperature was 400 ℃ or lower， the specimens failed due to tensile fracture of the rebars at the sleeve’s external end. In contrast， when the temperature exceeded 600 ℃， the specimens failed by bond-slip at the grout-to-rebar interface. As the temperature increased， the material properties of both the rebars and the grout gradually degraded， leading to a reduction in ultimate tensile strength， bond stress， and ductility. This degradation was significantly more pronounced in specimens subjected to large-deformation repeated loading than in those under high-stress repeated loading. Finally， a formula for calculating the bond stress of HGSCs under these two cyclic loading conditions after high-temperature exposure was proposed based on statistical regression. The maximum error between the calculated results and the experimental data was within 15%.
- half-grouted sleeve connection /
- after exposure to high temperatures /
- large-deformation repeated tension-compression /
- high-stress repeated tension-compression /
- mechanical properties

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参考文献(21)

[1]	TULLINI N，MINGHINI F. Grouted sleeve connections used in precast reinforced concrete construction-experimental investigation of a column-to-column joint[J]. Engineering Structures，2016，127:784-803.
[2]	ZHENG Y，GUO Z，GUAN D，et al. Parametric study on a novel grouted rolling pipe splice for precast concrete construction[J]. Construction and Building Materials，2018，166:452-463.
[3]	YEE A A，ENG P H D. Structural and economic benefits of precast/prestressed concrete construction[J]. PCI Journal，2001，46（4）:34-43.
[4]	XIAO J Z，LIU L，DING T，et al. Experimental study on mechanical behavior of thermally damaged grouted sleeve splice under cyclic loading[J]. Structural Concrete，2020，21（6）:2494-2514.
[5]	肖建庄，刘良林，丁陶，等.高温后套筒灌浆连接受力性能试验研究[J].建筑结构学报，2020，41（11）:99-107.
[6]	王国庆.钢筋套筒灌浆连接高温性能试验研究[D].苏州:苏州科技大学，2017.
[7]	张望喜，邓曦，何超.钢筋半套筒灌浆连接的高温静力拉伸性能[J].华南理工大学学报（自然科学版），2019，47（1）:48-55.
[8]	ZHANG W X，LYU W，ZHANG J，et al. Post-fire tensile properties of half-grouted sleeve connection under different cooling paths[J]. Fire Safety Journal，2019，109:102848.
[9]	张望喜，何超，张瑾熠，等.钢筋半套筒灌浆连接高温后的力学性能试验研究和黏结滑移分析[J].湖南大学学报（自然科学版），2019，46（11）:33-42.
[10]	WANG W，LI J H，GUO F，et al. Comparison of tensile mechanical properties of half grouted sleeve connection at elevated and post-elevated temperature:an experimental study[J]. Construction and Building Materials，2024，433:136723.
[11]	高强，赵唯坚.单向拉伸荷载下堆焊成型套筒灌浆连接性能试验研究[J].建筑结构学报，2022，43（4）:208-219.
[12]	许成顺，刘洪涛，杜修力.高应力反复拉压作用下钢筋套筒灌浆连接性能试验研究[J].建筑结构学报，2018，39（12）:178-184.
[13]	王嘉.高温对钢筋套筒灌浆连接力学性能影响研究[D].长沙:湖南大学，2022.
[14]	刘良林.高温后套筒灌浆连接大变形反复拉压力学性能研究[J].力学与实践，2023，45（3）:535-543.
[15]	郭菲.火灾高温及高温后钢筋套筒灌浆连接力学性能研究[D].宁波:宁波大学，2023.
[16]	中华人民共和国住房和城乡建设部.钢筋套筒灌浆连接应用技术规程:JGJ 355—2015[S].北京:中国建筑工业出版社，2015.
[17]	马江剑.高温后半灌浆套筒连接试验研究[D].西安:西安建筑科技大学，2017.
[18]	ZHENG Y，GUO Z，LIU J，et al. Performance and confining mechanism of grouted deformed pipe splice under tensile load[J]. Advances in Structural Engineering，2016，19（1）:86-103.
[19]	HUA L J，RAHMAN A B A，MIRASA A K，et al. Performance of CS-sleeve under direct tensile load:part I:failure modes[J]. Malaysian Journal of Civil Engineering，2008，20（1）:89-106.
[20]	EINEA A，YAMANE T，TADROS M K. Grout-filled pipe splices for precast concrete construction[J]. PCI Journal，1995，40（1）:82-93.
[21]	舒斌.循环荷载作用下高温后钢筋套筒灌浆连接受力性能研究[D].苏州:苏州科技大学，2020。