2022 Vol. 22, No. 5

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2022, 22(5): .
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Review on research of jointless bridges
CHEN Bao-chun, HUANG Fu-yun, XUE Jun-qing, LUO Xiao-ye, ZHUANG Yi-zhou, LIU Yong-jian, XU Ming, ZHAO Qiu-hong, BRISEGHELLA Bruno
Abstract: The technological development of jointless bridges was reviewed, the advatages, application and research hotspots were introduced, the longitudinal stress characteristics, pile-soil interaction, earth pressure of backfill on the autment and seismic performance were analyzed, and the present situatio...
2022, 22(5): 1-40. doi: 10.19818/j.cnki.1671-1637.2022.05.001
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Review on long-term performance of reinforced concrete structures under simulated acid rain erosion environments
REN Qing-yang, JIN Hong-hua, XIAO Song-qiang, WANG Fei-fei, CHEN Bin
Abstract: To deepen the understanding of the long-term performance evolution mechanism of reinforced concrete structures under acid rain erosion environments, the corrosion mechanism, erosion model, and time-varying process of physical and mechanical properties of concrete materials under the acid rain erosio...
2022, 22(5): 41-72. doi: 10.19818/j.cnki.1671-1637.2022.05.002
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Theoretical model of drying shrinkage behavior of recycled coarse aggregate concrete
CHOI Donguk, ENKHBOLD Odontuya, YANG Sungchul
Abstract: To investigate the drying shrinkage behavior of recycled coarse aggregate concrete, 12 studies and 32 sets of shrinkage data were collected and compared. The test period was between 41 and 480 d, and the analysis parameters were as follows: the water-cement ratio (0.36-0.68), compressive strength of...
2022, 22(5): 73-84. doi: 10.19818/j.cnki.1671-1637.2022.05.003
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Temperature action and zoning of concrete jointless bridge in Shaanxi
LIU Yong-jian, MA Zhi-yuan, LIU Jiang, ZHU Wei-qing, WANG Xu, LI Ming-hui
Abstract: In order to study the regional difference of temperature action of concrete jointless bridge, a long-term temperature field test was carried out for an integral jointless bridge. The accuracy of temperature field FEM (finite element model) was verified based on the recorded data. The meteorological ...
2022, 22(5): 85-103. doi: 10.19818/j.cnki.1671-1637.2022.05.004
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Tensile performance and application of LEM-SHCC road-bridge link slab mixed with rubber powder for fully jointless bridge
ZHAN Xue-fang, WANG Xian, YAN Heng-li, ZHAO Yi-bin, SHI Yuan-yuan
Abstract: In order to solve the problems of excessive crack width and excessive internal force of the road-bridge link slab for a fully jointless bridge, the isopyknic rubber powder was added to a strain-hardening cementitious composite (SHCC) material to partly replace the fine sand, then the SHCC material w...
2022, 22(5): 104-118. doi: 10.19818/j.cnki.1671-1637.2022.05.005
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Seismic responses of abutment steel piles in integral skewed bridges
ZHAO Qiu-hong, GUO Hao-meng, DONG Shuo, WANG Qing-wei, CHEN Bao-chun, ZHOU Yong-jun
Abstract: A three-dimensional structural model of a integral skewed bridge was established by using finite element analysis software SAP2000, and the interactions of abutment-soil behind the abutment and H-shaped steel pile-soil around the pile were simulated through a discrete nonlinear spring element. Throu...
2022, 22(5): 119-130. doi: 10.19818/j.cnki.1671-1637.2022.05.006
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Test on interaction of semi-integral abutment and soil based on displacement effect of medium-long-term ambient temperature
HUANG Fu-yun, LIU Zheng-feng, SONG Da-hao, LIN Zhi-ping, CHEN Bao-chun
Abstract: To study the influence of ambient temperature effect on the interaction mechanism between a semi-integral abutment and soil behind the abutment, a simplified model of the semi-integral abutment-soil structure was taken as the research object to carry out a displacement-based quasi-static test on the...
2022, 22(5): 131-144. doi: 10.19818/j.cnki.1671-1637.2022.05.007
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Quasi-static test on H-shaped steel-RC stepped pile-soil interaction of integral bridge
ZHUANG Yi-zhou, SONG Kun-sheng, SONG Yong-qing, CHEN Guo-dong, HUANG Fu-yun, CHEN Liang
Abstract: On the basis of H-shaped steel-RC stepped pile model tests, the quasi-static tests of 2 H-shaped steel-RC stepped piles (HS-RC-0.25, HS-RC-0.50) and an H-shaped steel (HS) pile under the low cyclic repeated loading were carried out. A horizontal displacement load was applied on the pile top, and the...
2022, 22(5): 145-162. doi: 10.19818/j.cnki.1671-1637.2022.05.008
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Back analysis of build-up effect of earth pressure behind integral abutment
XU Ming, LIN Yong-zhi, ZHOU Wen-xuan
Abstract: To determine the ultimate earth pressure behind integral abutment subjected to horizontal cyclic displacements, the back analysis using the finite difference numerical simulation was performed on five sets of model tests of integral abutments. A soil constitutive model capable of reflecting the high...
2022, 22(5): 163-172. doi: 10.19818/j.cnki.1671-1637.2022.05.009
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Calculation method for earth pressure behind integral abutment under horizontal reciprocating large displacement
LI Lan, HUANG Fu-yun, ZHANG Feng, LIU Zheng-feng, CHEN Wei
Abstract: To analyze the effect of horizontal reciprocating large displacement generated by the abutment on the interaction between the abutment and the backfill behind the abutment under the actions of strong earthquake and temperature, a quasi-static test for the interaction among the integral abutment, H-s...
2022, 22(5): 173-183. doi: 10.19818/j.cnki.1671-1637.2022.05.010
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Flexural performance and capacity of embedded H-shaped steel pile-abutment joint
ZHU Wei-qing, SHI Hao-hui, ZHANG Guan-hua, LIU Yong-jian, LIU Jia-tong
Abstract: In order to investigate the flexural performance of embedded H-shaped steel pile-abutment joint for integral abutment bridges, the finite element model of the joint was established, and the effects of abutment thickness, concrete strength, steel pile orientation, buried depth ratio, steel strength, ...
2022, 22(5): 184-199. doi: 10.19818/j.cnki.1671-1637.2022.05.011
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Fatigue performance of composite girder bridge with corrugated steel webs-concrete filled steel tubular truss chords
CHEN Kang-ming, HUANG Han-hui, WU Qing-xiong, CHEN Bao-chun
Abstract: To study the distribution laws of hot-spot stress, fatigue performance evolution, and fatigue failure mode of the composite girder with corrugated steel webs-concrete filled steel tubular (CSW-CFST) truss chords, the fatigue performance test and finite element analysis on the composite girder with C...
2022, 22(5): 200-216. doi: 10.19818/j.cnki.1671-1637.2022.05.012
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Analytical solution and calculation method of reasonable arch axis of through arch bridge
ZHANG Guo-jing, LIU Yong-jian, LIU Jiang
Abstract: To obtain the analytical solution and calculation method of the reasonable arch axis of through arch bridge, the dead load action mode and differential equation of the reasonable arch axis were established, and the analytical solution of the reasonable arch axis was determined. Based on the analytic...
2022, 22(5): 217-230. doi: 10.19818/j.cnki.1671-1637.2022.05.013
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Experiment on mechanical property degradation of Q345 steel after strong corrosion
QIAO Wen-jing, YANG Fan, HU Qi-han, ZHANG Hao, JIAO Xue-feng
Abstract: The influences of surface morphology and corrosion time of Q345 steel after strong corrosion on its mechanical property degradation were systematically studied. A rapid corrosion method based on the industrial hydrochloric acid with a concentration of 36% at room temperature was adopted, and nine gr...
2022, 22(5): 231-246. doi: 10.19818/j.cnki.1671-1637.2022.05.014
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