环境温度作用下半整体桥台后土抗力试验

Abstract
Figure/Table
References
Related Citation (11)

Download: PDF (1033 KB) HTML (0 KB)
Export: BibTeX | EndNote (RIS)

Abstract Research purposes:Semi-integral abutment jointless bridge (SAJB) is a new type of bridge structure. Due to the rigid connection of main girder and abutment, the main girder will induce the bridge abutment to undergo reciprocating displacement along the longitudinal bridge direction, which results the changes of soil resistance behind the abutment under the long-term effects of diurnal and seasonal ambient temperature. In order to study the distribution law of the soil resistance behind the abutment and the influence of the medium long-term ambient temperature on it, a quasi-static test of the semi-integral abutment-soil interaction was carried out under medium and long-term ambient temperature.
Research conclusions:(1) The soil resistance with the ambient temperature rises rapidly in the 1st to 6th middle period (the first warming interval from spring to summer), then decrease in the 6th to 16th middle period (the period from summer to summer). In the 16th to 20th middle period (the second warming interval from winter to spring), it starts to increase again, but the increase rate is slightly slow compared to the first warming interval. (2) The soil resistance along the buried depth increases firstly until reaching the maximum at the buried depth of 0.8h, and then decreases under the medium long-term ambient temperature. (3) The law of soil resistance along longitudinal direction in each period is that in the area near the abutment, the soil resistance decreases rapidly; while in the area far away from the abutment, the soil resistance decreases slowly to 0 at the position 1.0h away from the abutment. (4) After a large period of ambient temperature, the soil resistance behind the abutment has a significant cumulative increasing effect, and its cumulative effect has a strong correlation with the longitudinal position and vertical depth of the soil. (5) The research results can provide references for the design of semi-integral bridges and the formulation of related specifications.

Key words： bridge engineering semi-integral bridge quasi-static test seasonal ambient temperature soil resistance behind abutment cumulative effect

Received: 31 December 2020

PACS:

TU443

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	HUANG Fuyun
	ZHOU Zhiming
	SONG Dadong
	YAN Aiguo
	ZHANG Feng

Cite this article:

HUANG Fuyun,ZHOU Zhiming,SONG Dadong, et al. Experiment on the Soil Resistance behind Abutment of Semi-integral Abutment Jointless Bridge under Ambient Temperature[J]. Journal of Railway Engineering Society, 2022, 39(1): 47-55.

URL:

https://tdgcxb.crec.cn/EN/ OR https://tdgcxb.crec.cn/EN/Y2022/V39/I1/47

[1]	陈宝春, 庄一舟, 黄福云, 等.无伸缩缝桥梁(第二版)[M]. 北京: 人民交通出版社, 2019.Chen Baochun, Zhuang Yizhou, Huang Fuyun, etc. Jointless Bridges(2nd Edition)[M]. Beijing: China Communications Press, 2019.
[2]	陈宝春, 付毳, 庄一舟,等. 中国无伸缩缝桥梁应用现状与发展对策[J]. 中外公路, 2018(1):87-95.Chen Baochun, Fu Cui, Zhuang Yizhou, etc. The Application Status and Development Strategy of Jointless Bridges in China[J]. Journal of China ＆　Foreign Highway, 2018(1):87-95.
[3]	庄一舟, 李增锋, 程俊峰,等. 半整体式桥台无缝化斜交桥的抗震性能分析[J]. 建筑科学与工程学报, 2017(3):28-34.Zhuang Yizhou, Li Zengfeng, Cheng Junfeng, etc. Analysis on Seismic Performance of Semi-integral Abutment Jointless Skew Bridge[J]. Journal of Architecture and Civil Engineering, 2017(3):28-34.
[4]	林上顺, 林友炜, 黄福云, 等. 往复位移作用下整体桥台后土压力计算方法[J]. 中国公路学报, 2019(2):116-125.Lin Shangshun, Lin Youwei, Huang Fuyun, etc. Method to Calculate Earth Pressure of Backfill of Integral Abutment Bridges Under the Action of Reciprocating Longitudinal Displacement[J]. China Journal of Highway and Transport, 2019(2):116-125.
[5]	郑爽. 考虑季节温度效应的半整体桥台后土压力试验研究[D]. 福州:福建农林大学, 2019.Zheng Shuang. Experimental Study on Soil Pressure behind Semi-Integral Abutment Considering Seasonal Temperature Effect[D]. Fuzhou:Fujian Agriculture and Forestry University, 2019.
[6]	庄一舟,李增锋,程俊峰,等.半整体式桥台无缝化斜交桥的抗震性能分析[J].建筑科学与工程学报, 2017(3):24-30.Zhuang Yizhou, Li Zengfeng, Cheng Junfeng, etc. Analysis on Seismic Performance of Semi-integral Abutment Jointless Skew Bridge[J]. Journal of Architecture and Civil Engineering, 2017(3):24-30.
[7]	文望青, 严爱国, 王德志. 福厦高铁泉州湾跨海大桥总体设计[J]. 铁道标准设计, 2020(S1):7-11.Wen Wangqing, Yan Aiguo, Wang Dezhi. Overall Design of Quanzhou Bay Sea Crossing Bridge of Fuzhou-Xiamen High-speed Railway[J]. Railway Standard Design, 2020(S1):7-11.
[8]	赵云鹏, 于天来, 毕瑞锋. 整体式桥梁在温度荷载作用下的台后土压力研究[J]. 桥梁建设, 2016(6):56-60.Zhao Yunpeng, Yu Tianlai, Bi Ruifeng. Study of Earth Pressure Behind Abutment of Integral Bridge Under Action of Temperature Load[J]. Bridge Construction,2016(6):56-60.
[9]	吕阳, 雷长顺, 陈效星. 墙顶集中荷载对挡土墙结构的影响分析[J]. 铁道工程学报, 2021(4):28-32.Lv Yang, Lei Changshun,Chen Xiaoxing. Analysis of the Influence of Concentrated Load on the Retaining Wall[J]. Journal of Railway Engineering Society, 2021(4):28-32.
[10]	宋大好. 环境温度作用下半整体式弯桥台-土相互作用研究[D]. 福州: 福州大学, 2020.Song Dahao. Study on the Curved Semi-integral Abutment-soil Interaction under Ambient Temperature[D]. Fuzhou:Fuzhou University, 2020.