超高性能混凝土预制拼装综合管廊抗剪承载力

陈树辉; 夏樟华; 吴泽霖; 许有胜; 呼明亮; 朱三凡

doi:10.13204/j.gyjzG22010413

超高性能混凝土预制拼装综合管廊抗剪承载力

doi: 10.13204/j.gyjzG22010413

1. 健研检测集团有限公司, 福建厦门 361004;
2. 福州大学土木工程学院, 福州 350108;
3. 深圳市市政设计研究院有限公司, 广东深圳 518038

基金项目:

厦门市建设局科技项目(XJK2020-1-8)

福建省自然科学基金项目(2020J01477)

福州市科技成果转移转化项目(2020-GX-18)。

详细信息

作者简介:
陈树辉,男,1982年出生,硕士,高级工程师,254309803@qq.com。

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

计量
- 文章访问数: 79
- HTML全文浏览量: 9
- PDF下载量: 6
- 被引次数: 0
出版历程
- 收稿日期: 2022-01-04

The Shear Bearing Capacity of Prefabricated UHPC Utility Tunnels

1. Jianyan Testing Group Co., Ltd., Xiamen 361004,China;
2. College of Civil Engineering, Fuzhou University, Fuzhou 350108, China;
3. Shenzhen Municipal Engineering Design Institute Co., Ltd., Shenzhen 518038, China

摘要

摘要: 为研究超高性能混凝土(UHPC)预制拼装综合管廊在静力荷载作用下的抗剪承载力,通过分析现有箱型混凝土结构的抗剪计算方法,考虑钢纤维对结构的抗拉作用,提出UHPC预制拼装综合管廊抗剪承载力计算方法。结合对UHPC管廊双向荷载作用下的静力试验,对所提出的抗剪承载能力计算式进行分析、比较和验证。结果表明:考虑UHPC中钢纤维对于结构抗剪能力的贡献,参考箱型结构"内力拱"受力计算模型,计算得到的管廊试件破坏时顶板和侧墙抗剪承载力计算值与实测值较为接近,计算结果精度较高,计算误差在7%以内,较现有计算法的计算精度更高。
- UHPC /
- 综合管廊 /
- 静力试验 /
- 抗剪性能 /
- 承载力
Abstract: In order to study the shear bearing capacity of prefabricated UHPC utility tunnels under static loads, the shear resistance calculation method of existing box-shape concrete structures was analyzed, and the tensile effect of steel fibers on the structure was considered, and a shear bearing capacity calculation method of prefabricated UHPC utility tunnels was proposed. Combining with the static tests under bidirectional loads on prefabricated UHPC utility tunnels, the proposed calculation formula for the shear bearing capacity was analyzed, compared and verified. The results indicated that the theoretically calculated values of the shear bearing capacity of top plates and side walls for the utility tunnel structure in destruction under confining pressure, which was considered the contribution of steel fibers in UHPC to shear resistance of structures and was referred to the "internal force arch" calculation model of box-shaped structurs, were closer to the measured values in tests. The calculated results were more accurate, and the calculation errors were within 7%. Compared with the existing calculation methods, the proposed method was more accurate.
- UHPC /
- utility tunnel /
- static test /
- shear performance /
- bearing capacity

HTML全文

参考文献(23)

[1]	曹生龙. 预制混凝土箱涵在地下综合管廊中应用的一些技术问题探讨 [J]. 混凝土与水泥制品, 2017(7): 30-37.
[2]	DUGAT J, ROUX N, BERNIER G. Mechanical properties of reactive powder concretes[J]. Materials & Structures, 1996, 29(4): 233-240.
[3]	WU X, HAN S M. First diagonal cracking and ultimate shear of I-shaped reinforced girders of ultra-high performance fiber reinforced concrete without stirrup [J]. International Journal of Concrete Structures & Materials, 2009, 3(1): 47-56.
[4]	BABY F, MARCHAND P, TOUTLEMONDE F. Shear behavior of ultrahigh performance fiber-reinforced concrete beams (II): analysis and design provisions [J/OL]. Journal of Structural Engineering, 2013, 140[2022-01-04].http://10.1061/(ASCE)ST.1943-541X.0000908.
[5]	VOO Y L, POON W K, FOSTER S J. Shear strength of steel fiber-reinforced ultrahigh-performance concrete beams without stirrups [J/OL]. Journal of Structural Engineering, 2010, 136(11) [2022-01-04].https://doi.org/10.1061/(ASCE)ST.1943-541X.0000234.
[6]	刘超, 吉赫. 超高性能混凝土-混凝土组合梁抗剪承载力计算方法 [J]. 同济大学学报(自然科学版), 2019, 47(8): 1123-1130.
[7]	陈红波. 配筋超高性能混凝土短梁受剪性能研究 [D]. 长沙:湖南大学, 2014.
[8]	马熙伦, 陈宝春, 杨艳, 等. R-UHPC梁的抗剪承载力计算方法 [J]. 交通运输工程学报, 2017, 17(5): 16-26.
[9]	刘亮. 超高性能混凝土梁抗剪性能研究 [D]. 西安:长安大学, 2018.
[10]	戚家南, 王景全, 周凯, 等. UHPC梁受剪性能试验与抗剪承载力计算方法 [J]. 中国公路学报, 2020, 33(7): 95-103.
[11]	DINH H H, PARRA-MONTESINOS G J, WIGHT J K. Shear behavior of steel fiber-reinforced concrete beams without stirrup reinforcement [J]. Structural Journal, 2010, 107(5): 597-606.
[12]	DINH H H, PARRA-MONTESINOS G J, ASCE M, et al. Shear strength model for steel fiber reinforced concrete beams without stirrup reinforcement [J]. Journal of Structural Engineering, 2011, 137(10): 1039-1051.
[13]	徐海宾. HRB500钢筋预应力超高性能混凝土梁受力性能研究 [D]. 北京:北京工业大学, 2015.
[14]	XIA J, MACKIE K R, SALEEM M A, et al. Shear failure analysis on ultra-high performance concrete beams reinforced with high strength steel [J]. Engineering Structures, 2011, 33(12): 3597-609.
[15]	邵旭东, 杨志杰, 邹同琛, 等. 密集横隔板UHPC箱梁桥面板双向受力性能试验 [J]. 中国公路学报, 2016, 29(8): 43-49 ,66.
[16]	陈艳平, 王华. 利用UHPC建设地下综合管廊的初步探讨 [J]. 市政技术, 2018, 36(6): 144-146 ,76.
[17]	中华人民共和国住房和城乡建设部.混凝土结构设计规范:GB 50010—2010 [S].北京:中国建筑工业出版社,2010.
[18]	中华人民共和国交通运输部.公路钢筋混凝土及预应力混凝土桥涵设计规范:JTG 3362—2018 [S].北京:人民交通出版社,2018.
[19]	中国工程建设标准化协. 纤维混凝土结构技术规程:CECS 38∶2004 [S].北京:中国计划出版社,2004.
[20]	中华人民共和国建设部.普通混凝土力学性能试验方法标准:GB/T 50081—2002 [S].北京:中国建筑工业出版社,2003.
[21]	中华人民共和国国家质量监督检验检疫总局.活性粉末混凝土:GB/T 31387—2015 [S].北京:中国标准出版社,2015.
[22]	中华人民共和国国家质量监督检验检疫总局.金属材料拉伸试验第1部分:室温试验方法:GB/T 228.1—2010 [S]. 北京:中国标准出版社,2011.
[23]	田子玄. 装配叠合式混凝土地下综合管廊受力性能试验研究 [D]. 哈尔滨:哈尔滨工业大学, 2016.