Results 11 to 20 of about 10,102 (232)

Temperature Field and Gradient Effect of a Steel-Concrete Composite Box Girder Bridge

open access: yesAdvances in Materials Science and Engineering, 2021
To study the effect of the temperature field and gradient of a steel-concrete composite box girder bridge, a 5 × 35 continuous composite box girder bridge is used as the research object. The temperature measuring point is set by selecting a typical cross
Haoxu Li, Zhiguo Zhang, Nianchun Deng
doaj   +1 more source

Damage Analysis of Box Girder Based on a Vehicle–Bridge Interaction System

open access: yesBuildings, 2023
This study proposes a stress analysis method of reinforced concrete (RC) box girder based on damage to reveal the dynamic mechanical response and damage mechanisms of a bridge under moving vehicle load.
Bin Zhou, Yingxin Hui, Xiaobo Zheng
doaj   +1 more source

Study on the Effects of Innovative Curing Combinations on the Early Temperature Field of Concrete Box Girders

open access: yesBuildings, 2022
Box girder bridges are often subject to cracking due to wet temperature changes caused by the heat of hydration in the early stages; however, current studies do not provide an effective method for considering this effect.
Yong Zeng   +3 more
doaj   +1 more source

Fatigue safety monitoring and assessment of short and medium span concrete girder bridges [PDF]

open access: yes, 2015
Concrete bridge is widely used in highway infrastructure in China, especially in short and medium span bridges. Concrete bridges are prone to fatigue failure under the coupled actions of repeated vehicles loads, environment and material degradation.
Chen, Xin   +4 more
core   +1 more source

Study on shear resistance of full-scale PC box girder reinforced by SPCCS method [PDF]

open access: yes, 2015
Steel plate and concrete composite strengthening (SPCCS) method is developed on the basis of steel and concrete composite girder, the process of which mainly includes welding studs on the reinforcing steel plates, planting rebars in the original concrete,
Li, Rui   +4 more
core   +1 more source

Decision Analysis of a Reinforcement Scheme for In-Service Prestressed Concrete Box Girder Bridges Based on AHP and Evaluation of the Reinforcement Effect

open access: yesBuildings, 2022
Prestressed concrete girder bridges are widely used worldwide due to their mature construction technology, economical cost, and low maintenance. After a certain number of years of service, prestressed concrete girders inevitably suffer from deterioration
Haikuan Liu   +3 more
doaj   +1 more source

Bending behavior test and assessment for full-scale PC box girder reinforced by prestressed CFRP plate [PDF]

open access: yes, 2015
This paper focuses on behavior of full scale prestressed concrete (PC) box girder with difference degrees of damage derived from service stage. According to typical structural damage, strengthening measures are proposed, including gluing steel plate ...
Duan, Lan   +3 more
core   +1 more source

Study on Shear Lag Effect of Composite Box Girder Bridge with Corrugated Steel Webs

open access: yesChemical Engineering Transactions, 2017
The corrugated steel webs composite box girder bridge is a new bridge structure with corrugated concrete webs with fold effects, which can replace traditional concrete webs. Compared with traditional concrete web box girder, the application of steel webs
Xu Dong
doaj   +1 more source

Effect of Shear Deformation at Segmental Joints on the Short-Term Deflection of Large-Span Cantilever Cast Prestressed Concrete Box Girders

open access: yesBuildings, 2023
The excessive deflection of large-span cantilever cast prestressed concrete (LCCPC) box girders has always been a complex problem to be solved in bridge engineering.
Jie Liu   +3 more
doaj   +1 more source

Dynamic Analysis of a Steel–Concrete Composite Box-Girder Bridge–Train Coupling System Considering Slip, Shear-Lag and Time-Dependent Effects

open access: yesBuildings, 2022
A dynamic computational program considering slip, shear-lag and time-dependent effects of composite box-girder bridge–train coupling system is firstly proposed based on the authors’ previous studies. In the program, the long-term vertical displacement of
Ce Gao   +4 more
doaj   +1 more source

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