What is it about?
Idealization of shear walls in pushover analysis of reinforced concrete structures makes a wide use of beam elements since a few dedicated shell elements are available in the literature. While the beam approach provides acceptable approximations for the global response, it lacks of accuracy for local phenomena in presence of walls coexisting with frame elements. The paper presents a dedicated two-dimensional element which is able to model the behavior of concrete shells with steel reinforcement bars and capable to perform 3D analysis of structures with shear walls of any geometrical shape. Numerical results are provided in order to show a comparison with available alternatives and the accuracy of the proposed element.
Featured Image
Why is it important?
The employment of beam elements for modeling shear walls in common engineering structures lacks of precision in identifying internal forces inside the shear walls and at their joints with the nearby frame structure. This could result in unreliable limit state checks and inaccurate safety factors. The proposed element performs reliable limit state analysis and it also identifies local and global failure mechanisms.
Perspectives
The proposed element turns out reliable and stable for pushover analysis. Further work will point to a comparison with experimental data and to the implementation of softening and cyclic constitutive laws in order to make dynamic analysis performable. Moreover, a better characterization of the reinforcement bars location is currently under investigation.
Dr Salvatore Sessa
Universita degli Studi di Napoli Federico II
Read the Original
This page is a summary of: Limit state analysis of reinforced shear walls, Engineering Structures, March 2014, Elsevier,
DOI: 10.1016/j.engstruct.2013.12.032.
You can read the full text:
Resources
Contributors
The following have contributed to this page
