装配式小箱梁桥超高性能混凝土免支模湿接缝抗弯性能

doi:10.13229/j.cnki.jdxbgxb.20221403

Abstract

Abstract:

In order to improve the crack resistance of wet joints in prefabricated small box girder Bridges and simplify the site construction process， a construction form and design method of UHPC wet joint without formwork was proposed and its bending resistance was studied. Based on the assumption of flat section， the condition of cross-section equilibrium， the constitutive relation of steel bar， UHPC and concrete， a method for calculating the flexural capacity of the UHPC-NC composite section considering the contribution of UHPC in the tensile zone was proposed. The calculated value of the formula was compared with the finite element calculation. Based on the design method of UHPC wet joint without formwork， the feasible values of each parameter under the section form were obtained， and the functional relationship between the width of the wet joint rectangle strip and the calculated span of the small box girder bridge panel was obtained by fitting. Meanwhile， based on the finite element method， the numerical model of UHPC wet joint without formwork was established， the influence of the structure form of wet joint and the width of wet joint on the flexural capacity of UHPC wet joint was analyzed. The results show that the calculated value of the formula and the finite element calculation are in good agreement， which can provide guidance for the design of wet joints. The wet joint without formwork can give full play to the excellent mechanical properties of UHPC， inhibit the development of cracks， improve the durability and bearing capacity of bridge deck， and speed up the construction efficiency. The minimum width of the wet joint without support mold is 140 mm at the condition of the transverse steel bar diameter of the small box girder bridge is 16 mm， and the construction performance and economic performance of the precast bridge panel can be played.

Key words: prefabricated bridge, ultra-high performance concrete, wet joint, design method, flexural capacit

CLC Number:

U445.57

Jin-song ZHU,Xin-yao TONG,Xiao-xu LIU. Flexural behavior of ultra-high performance concrete joint without formwork in prefabricated small box girder bridges[J].Journal of Jilin University(Engineering and Technology Edition), 2024, 54(9): 2568-2580.

Figures/Tables 25

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References 23

1	李健.小箱梁结构在高等级公路中的应用发展及运营病害综述[J].公路交通科技,2015,11(4):9-12.
	Li Jian. Summary of application development and operating diseases of small box girder structure in high grade highway[J].Highway Traffic Technology,2015,11(4):9-12 .
2	宫亚峰,王博,谭国金,等.吉林省两种典型装配式箱涵受力特性对比分析[J].吉林大学学报:工学版,2019,49(6):1865-1870.
	Gong Ya-feng, Wang Bo, Tan Guo-jin,et al. Comparative analysis of the force characteristics of two typical prefabricated box culverts in Jilin Province[J]. Journal of Jilin University (Engineering and Technology Edition),2019,49(6):1865-1870.
3	崔凤坤,赵鹍鹏,董尧一,等.接缝失效对装配式小箱梁车辆荷载效应及结构可靠度影响研究[J].建筑技术,2018,49(S1):10-12.
	Cui Feng-kun, Zhao Kun-peng, Dong Yao-yi,et al. Effect of joint failure on load effect and structural reliability of assembled small box girder vehicles [J]. Architectural Technology,2018,49(S1):10-12.
4	吴清.预制小箱梁常见裂缝分类和防治[J].城市道桥与防洪,2011 (6):200-203, 323.
	Wu Qing. Classification and prevention of common cracks in precast box girder[J]. City roads and Bridges and flood control,2011 (6):200-203, 323.
5	龚永智,况锦华,柯福隆,等.UHPC连接的装配式剪力墙节点抗震性能试验[J].吉林大学学报:工学版,2022,52(10):2367-2375.
	Gong Yong-zhi, Kuang Jin-hua, Ke Fu-long,et al. Seismic performance test of prefabricated shear wall joints connected by UHPC[J]. Journal of Jilin University (Engineering and Technology Edition), 2022, 52(10):2367-2375.
6	Graybeal B A. Ultra-high-performance concrete connections for precast concrete bridge decks[J]. Pci Journal, 2014, 59(4): 48-62.
7	袁嘉梁,贾依楠,晏班夫. 矩形UHPC湿接缝受弯性能研究[J].公路工程,2020,45(5):129-134.
	Yuan Jia-liang, Jia Yi-nan, Yan Ban-fu. Study on flexural performance of vertical UHPC wet joints[J]. Highway Engineering,2020,45(5):129-134.
8	Peng K K, Yan B F. Experimental study of the flexural behaviour of ultra-high-performance concrete beam with wet joint[J]. Magazine of Concrete Research, 2022,74(1/2):70-80.
9	张阳,陈贝.预制NC板现浇UHPC接缝的抗弯性能有限元分析研究[J].公路工程, 2018, 43(6): 1-5.
	Zhang Yang, Chen Bei. Finite element analysis ｒesearch on flexural performance of prefabricated NC panels with UHPC joints[J]. Highway Engineering,2018,43(6):1-5 .
10	胡志坚,尹炳森,俞文生.预制拼装桥面板UHPC湿接缝抗弯性能分析[J]. 中山大学学报: 自然科学版,2021, 60(6): 29-35.
	Hu Zhi-jian, Yin Bing-sen, Yu Wen-sheng. Analysis of flexural behavior of prefabricated deck slab with UHPC joints[J]. Acta Scientiarum Naturalium Universitatis Sunyatseni,2021, 60(6): 29-35 .
11	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.
	Zhang Ju-hui, Huang Shuai, Guan Zhong-guo. Static loading test of longitudinal joint details using staggered U-bars in precast multibox girder bridges [J]. China Journal of Highway and Transport, 2018, 31(12): 115-123.
12	龙佩恒, 杜小节, 韩扬, 等. 预制拼装板UHPC湿接缝抗弯性能分析[J]. 建筑结构, 2021, 51(): 1209-1215.
	Long Pei-heng, Du Xiao-jie, Han Yang,et al. Analysis on flexural performance of prefabricated assembly panels with UHPC wet joints[J]. Building Structure,2021,51(Sup.2):1209-1215 .
13	T/CCES 27—2021. 超高性能混凝土梁式桥技术规程 [S].
14	. 混凝土结构设计规范 [S].
15	Al-Osta M A, Isa M N, Baluch M H,et al. Flexural behavior of reinforced concrete beams strengthened with ultra-high performance fiber reinforced concrete[J]. Construction and Building Materials,2017, 134: 279-296.
16	郭晓宇, 亢景付, 朱劲松. 超高性能混凝土单轴受压本构关系[J]. 东南大学学报: 自然科学版, 2017, 47(2): 369-376.
	Guo Xiao-yu, Kang Jing-fu, Zhu Jin-song. Constitutive relationship of ultrahigh performance concrete under uni-axial compression[J]. Journal of Southeast University (Natural Science Edition), 2017, 47(2): 369-376.
17	张哲, 邵旭东, 李文光, 等.超高性能混凝土轴拉性能试验[J].中国公路学报, 2015, 28(8): 50-58.
	Zhang Zhe, Shao Xu-dong, Li Wen-guang, et al. Experimental study on axial tension performance of ultra-high performance concrete[J].China Journal of Highway and Transport, 2015, 28(8): 50-58.
18	许建明, 陈勇, 刘骁繁, 等.UHPC-NC叠层梁界面黏结性能的试验研究与数值模拟[J]. 建筑科学与工程学报, 2021, 38(4): 44-56.
	Xu Jian-ming, Chen Yong, Liu Xiao-fan, et al. Experimental study and numerical simulation of interface bonding properties of UHPC-NC laminated beams [J]. Journal of Building Science and Engineering, 2021, 384: 44-56.
19	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.
	Ma Xi-lun, Chen Bao-chun, Yang Yan, et al. Calculation method of shear bearing capacity of R-UHPC beam[J].Journal of Traffic and Transportation Engineering, 2017, 17 (5): 16-26.
20	. 公路钢筋混凝土及预应力混凝土桥涵设计规范 [S].
21	. 公路桥涵设计通用规范 [S].
22	FHWA-HRT-14-090. Bond behavior of reinforcing steel in ultra-high performance concrete [S].
23	. 公路装配式混凝土桥梁设计规范 [S].

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考虑方面	设计理念
安全性	斜截面增大UHPC-NC接触面积，提高界面黏结强度，解决接缝界面易开裂的问题，UHPC可提高接缝抗弯承载力
耐久性	高应力区域设计矩形条带，有效抑制裂缝发展，UHPC耐久性好，开裂后无渗漏风险
施工性	直筋搭接，减少现场焊接量无需底部模板，提高了施工效率和施工质量UHPC养护时间短，可实现快速化施工
经济性	UHPC可以缩短湿接缝宽度，造价经济抗裂性好，后续维护费用低

h/mm	γ=0.1	γ=0.3	γ=0.5	γ=0.7	γ=0.9
20	0.71	0.79	0.88	0.96	1.05
40	0.76	0.84	0.91	0.98	1.05
60	0.80	0.86	0.92	0.98	1.03
80	0.84	0.89	0.93	0.98	1.02
100	0.90	0.93	0.96	0.99	1.02
120	0.90	0.93	0.95	0.97	0.99
140	0.88	0.89	0.90	0.91	0.92
160	0.95	0.95	0.96	0.96	0.97
180	0.97	0.87	0.87	0.87	0.87
平均	0.85	0.88	0.92	0.97	0.99
标准差	0.064	0.041	0.029	0.008	0.057

α/（°）	h₁/mm	h₂/mm	T/mm	W/mm
30	40	~	~	140
30	50	~	~	175
30	60	20 ~ 50	500	210
30	70	~	~	245
30	80	~	~	280

编号	h₁/mm	a/（°）	h₂/mm	T/mm	变化参数
J-1	80	30	30	500	标准接缝板
J-2	80	0	30	500	截面形式
J-3	80	30	0	0	截面形式
J-4	60	30	30	500	湿接缝宽度
J-5	40	30	30	500	湿接缝宽度

截面形式	开裂荷载	极限荷载	开裂位置
矩形有条带	190.2	623.4	UHPC-NC界面
漏斗无条带	193.4	572.3	预制NC板
免支模有条带	195.4	625.5	预制NC板

Flexural behavior of ultra-high performance concrete joint without formwork in prefabricated small box girder bridges

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