A Study of Structural Behavior Rationality and Load Carrying-capacity Evaluation of Integral Abutment Bridge

2017 ◽  
Vol 17 (6) ◽  
pp. 313-321 ◽  
Author(s):  
Youngguk Choi ◽  
◽  
Ilyoung Jang ◽  
Keyword(s):  
Carrying Capacity ◽  
Structural Behavior ◽  
Load Carrying Capacity ◽  
Integral Abutment ◽  
Capacity Evaluation ◽  
Integral Abutment Bridge ◽  
Load Carrying

Load-Carrying Capacity Inspection and Evaluation of Existing Pre-Stressed Concrete Hollow Slab

2011 ◽  
Vol 90-93 ◽  
pp. 1173-1177
Author(s):  
Ya Li Ma ◽  
Dong Wei Wang
Keyword(s):  
Carrying Capacity ◽  
Evaluation Method ◽  
Load Carrying Capacity ◽  
Capacity Evaluation ◽  
Load Carrying

Load-carrying capacity evaluation method of existing pre-stressed concrete hollow slab is represented based on the example, inspection content, method and result are introduced. Based on the result, carrying capacity condition is evaluated by the relevant code. The result can validate the rationality and effectivity of the method, which is useful for the carrying capacity evaluation of similar structure.

Structural tests on 43- and 45-year-old pre-stressed concrete bridge for reinforcement effect of PSC-I girders reinforced by external strand tendons

2021 ◽  
Author(s):  
Hyun-Joong Kim ◽  
Young Suk Park ◽  
Chul Young Kim ◽  
Seung Hee Kwon
Keyword(s):  
Carrying Capacity ◽  
Load Test ◽  
Flexural Behavior ◽  
Structural Behavior ◽  
Load Carrying Capacity ◽  
Reinforcement Effect ◽  
Girder Bridges ◽  
Standard Design ◽  
Load Carrying ◽  
The 1960S

<p>In this study, the flexural behavior of pre-stressed concrete-I (PSC-I) girders was investigated to intuitively and more accurately evaluate the structural behavior and load-carrying capacity increase of PSC-I girder bridges more than 40 years old and reinforced by the external pre-stressing (PS) tendon reinforcement method. Many bridges in South Korea, which were constructed after the 1960s, exhibit a significantly low load-carrying capacity due to aging and the application of loads that are different from originally designed loads. To improve the load-carrying capacity and working load of these old bridges, reinforcement methods that use external PS tendons have been conventionally used. However, the evaluation of the load-carrying capacity of a bridge and the calculation of the number of external tendons for reinforcement are performed through the vehicle load test within the working load range of the bridge. Most of the studies conducted so far have been limited to the calculation of the loss of the members required for the reinforcement of the bridge or their structural behavior. In this study, a flexural failure verification experiment was performed on PSC-I girder bridges that were constructed based on the standard design of the 1960s to verify the reinforcement effect of PS tendons. The target of the experiment was the girders of PSC-I girder bridges designed more than 40 years ago based on the working loads of DB-18 and DB- 24.</p>

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