| Medium: |
conference paper |
| Language(s): |
English
|
| Conference: |
IABSE Conference: Engineering the Past, to Meet the Needs of the Future, Copenhagen, Denmark, 25-27 June 2018 |
| Published in: |
IABSE Conference Copenhagen 2018 |
|
Page(s):
|
306-311
|
Total no. of pages: |
6 |
|
|
Page(s):
|
306-311
|
| Total no. of pages: |
6 |
| DOI: |
10.2749/copenhagen.2018.306 |
|
Abstract:
|
A statement is articulated that equalization of the effective width of class 1 and 2 girders with that of other classes in Eurocode 4 contradicts to the principle of the effective width determination. A new approach to the problem is proposed with taking into account the transversal strain distribution. The critical point is localized on the girder axis at upper concrete plate level where the strain reaches value. Sideways the strain decreases to and further according to the direct stresses distribution in elastic condition. Plastic and elastic zones in the concrete plate cross section are outlined. The stresses there contribute to the girder bending resistance accordingly. Numerical experiments show that the resistance obtained, compared with the same according to Eurocode 4 provisions is highest with 24%. The approach can be used in RC T-girder calculations but with smaller effect.
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Keywords:
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stress-strain relationship Eurocodes plastic bending resistance strains stresses
|
