Field tests for remaining life and load carrying capacity assessment of concrete bridges

2012 ◽  
pp. 157-164 ◽  
Author(s):  
A Miyamoto
Keyword(s):  
Carrying Capacity ◽  
Field Tests ◽  
Concrete Bridges ◽  
Capacity Assessment ◽  
Load Carrying Capacity ◽  
Remaining Life ◽  
Load Carrying

Some Experiences with Evaluation of the Load Carrying Capacity of Bridges Using in Situ Load Tests

2018 ◽  
Author(s):  
Jacob Wittrup Schmidt ◽  
Arne Henriksen ◽  
Svend Engelund
Keyword(s):  
Computational Model ◽  
Carrying Capacity ◽  
Limit State ◽  
Concrete Bridges ◽  
Ultimate Limit State ◽  
Load Carrying Capacity ◽  
Load Carrying ◽  
Actual Load ◽  
Load Tests

The evaluation of the load carrying capacity of bridges is usually performed using a computational model and a number of codes that specify the relevant ma terial properties and loads. This approach ensures that the evaluation of the load carrying capacity is performed such that the bridge has an acceptable level of safety with respect to a number of adverse events such as collapse (ultimate limit state) and large deformations (serviceability limit state). However, experience indicate that redistribution of load effects, interaction between structural elements, the actual boundary conditions and other factors may provide a higher load carrying capacity than the one determined on the basis of the computational model. The Danish Road Directorate has in cooperation with The Danish Technical University and COWI A/S performed a number of in situ load tests of concrete bridges in order to determine the actual load carrying capacity of the short span concrete bridges (up to 12m). The paper presents the planning and the execution of the tests. Further, it is demonstrated how the results may be used in order to determine the actual load carrying capacity of a bridge.

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