Survey and Analysis of Exiting Reinforced Concrete Ribbed Arch Bridges

2011 ◽  
Vol 255-260 ◽  
pp. 1187-1191 ◽  
Author(s):  
Ke Chen ◽  
Jian Yong Song
Keyword(s):  
Reinforced Concrete ◽  
Southwest China ◽  
Mountain Areas ◽  
Arch Bridges ◽  
Design Construction

Reinforced concrete ribbed arch bridges are applied widely in China, especially in mountain areas of southwest China. After many years of operation, some distresses and damages occur of this kind of bridges. There are 100 bridges of this style are generally surveyed and 49 of them with typical distresses are investigated in details on site. Based on it, characteristics and rules of distresses are classified and summed up, and the reasons of them occurrence are analyzed. This process is expected to provide reference and evidence for design, construction, maintenance and strengthening of this kind of bridges, and establish a foundation for further research.

scholarly journals Transverse prestressing and reinforced concrete as the key to restoration of masonry arch bridges

2021 ◽  
Vol 245 ◽  
pp. 112898
Author(s):  
Ladislav Klusáček ◽  
Radim Nečas ◽  
Michal Požár ◽  
Robin Pěkník ◽  
Adam Svoboda
Keyword(s):  
Reinforced Concrete ◽  
Masonry Arch ◽  
Arch Bridges

Limit Analysis of Reinforced Concrete Arch Bridges

1979 ◽  
Vol 105 (2) ◽  
pp. 313-326 ◽  
Author(s):  
Paola Ronca ◽  
M. Z. Cohn
Keyword(s):  
Reinforced Concrete ◽  
Limit Analysis ◽  
Arch Bridges

Reinforced concrete and masonry arch bridges in seismic areas: typical deficiencies and retrofitting strategies

2020 ◽  
pp. 3-30
Author(s):  
Claudio Modena ◽  
Giovanni Tecchio ◽  
Carlo Pellegrino ◽  
Francesca da Porto ◽  
Marco Donà ◽  
...  
Keyword(s):  
Reinforced Concrete ◽  
Masonry Arch ◽  
Arch Bridges

scholarly journals Influence of Multiple-Support Excitation on Seismic Response of Reinforced Concrete Arch Bridges

2019 ◽  
Vol 10 (1) ◽  
pp. 17 ◽  
Author(s):  
Marta Savor Novak ◽  
Damir Lazarevic ◽  
Josip Atalic ◽  
Mario Uros
Keyword(s):  
Reinforced Concrete ◽  
Spatial Variation ◽  
Seismic Response ◽  
Ground Motion ◽  
Seismic Analysis ◽  
Numerical Study ◽  
Relative Significance ◽  
Multiple Support ◽  
Arch Bridges ◽  
Support Excitation

Although post-earthquake observations identified spatial variation of ground motion (i.e., multiple-support excitation) as a frequent cause of the unfavorable response of long-span bridges, this phenomenon is often not taken into account in seismic design to simplify the calculation procedure. This study investigates the influence of multiple-support excitation accounting for coherency loss and wave-passage effects on the seismic response of reinforced concrete deck arch bridges of long spans founded on rock sites. Parametric numerical study was conducted using the time-history method, the response spectrum method, and a simplified procedure according to the European seismic standards. Results showed that multiple-support excitation had a detrimental influence on response of almost all analyzed bridges regardless of considered arch span. Both considered spatial variation effects, acting separately or simultaneously, proved to be very important, with their relative significance depending on the response values and arch locations analyzed and seismic records used. Therefore, it is suggested that all spatially variable ground-motion effects are taken into account in seismic analysis of similar bridges.

Research on Masonry Arch-Bridges Reinforcement and Reconstruction Methods

2014 ◽  
Vol 501-504 ◽  
pp. 1152-1156
Author(s):  
Xu Yong Chen ◽  
Xiao Xie
Keyword(s):  
Reinforced Concrete ◽  
Load Capacity ◽  
Cooperative Work ◽  
Masonry Arch ◽  
Reconstruction Methods ◽  
Arch Bridges ◽  
Main Arch

We analyze existing masonry arch-bridges and corresponding reinforcement methods in this paper and bring about the method of using strip-shaped outer-wrap reinforced concrete with chemically planted bar to improve the new and old concretes cooperative work so as to strengthen the wholeness and improve impermeability of the bridge. We also compare two experiments on one actual bridge of 30 cm strip-shaped outer-wrap reinforced concrete in the main arch ring and 20 cm global outer-wrap reinforcement concrete, of which the data shows the superiority of strip-shaped outer-wrap reinforced concrete for it strengthens both the bridge floor and bottom structure and improve the load capacity.

Investigation on Road Traffic Safety of the Mountain Areas in Southwest China Based on Wulong County, Chongqing Municipality

2005 ◽  
Vol 6 (2) ◽  
pp. 193-196 ◽  
Author(s):  
Ji-Hong Zhou ◽  
Xin-Cai Zhao ◽  
Zhi-Quan Jiang ◽  
Shun-Ying Zhu ◽  
Jing-Cuan Zhou
Keyword(s):  
Traffic Safety ◽  
Southwest China ◽  
Road Traffic ◽  
Mountain Areas ◽  
Road Traffic Safety ◽  
Chongqing Municipality
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