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A platform for research: civil engineering, architecture and urbanism
Seismic Performance of a Rocking Precast Concrete Cladding Panel System under Lateral Cyclic Displacement Demands
This paper experimentally investigates the seismic performance of an innovative ‘rocking’ precast concrete cladding panel system. Quasi-static cyclic loading tests were conducted on a sub-assembly of three ‘rocking’ panel pairs attached to a 3D steel structure, with and without sealant in the vertical joints between adjacent panels. The sub-assembly included a flat panel pair, an L-shaped panel pair and an oblique corner panel pair. Although the loading was applied in a single direction, the alignments of the panel pairs allowed scrutinizing their in-plane, out-of-plane and bi-directional performances.
The test results validated the low-damage attributes of the novel cladding system, which was able to accommodate large cyclic drifts with minor physical damage to the panels and their connections with the structures. Up to a cyclic drift of 4.0%, the only forms of damage observed were tearing of the sealants in between the panel pairs, dislocation of backer rods behind some sealants, dislodgement of a grout piece, and loosening of a nut supporting a corner panel. All these forms of damage are minor and repairable, which can be avoided by making some minor changes to the details of the system.
Seismic Performance of a Rocking Precast Concrete Cladding Panel System under Lateral Cyclic Displacement Demands
This paper experimentally investigates the seismic performance of an innovative ‘rocking’ precast concrete cladding panel system. Quasi-static cyclic loading tests were conducted on a sub-assembly of three ‘rocking’ panel pairs attached to a 3D steel structure, with and without sealant in the vertical joints between adjacent panels. The sub-assembly included a flat panel pair, an L-shaped panel pair and an oblique corner panel pair. Although the loading was applied in a single direction, the alignments of the panel pairs allowed scrutinizing their in-plane, out-of-plane and bi-directional performances.
The test results validated the low-damage attributes of the novel cladding system, which was able to accommodate large cyclic drifts with minor physical damage to the panels and their connections with the structures. Up to a cyclic drift of 4.0%, the only forms of damage observed were tearing of the sealants in between the panel pairs, dislocation of backer rods behind some sealants, dislodgement of a grout piece, and loosening of a nut supporting a corner panel. All these forms of damage are minor and repairable, which can be avoided by making some minor changes to the details of the system.
Seismic Performance of a Rocking Precast Concrete Cladding Panel System under Lateral Cyclic Displacement Demands
Bhatta, Jitendra (author) / Dhakal, Rajesh P. (author) / Sullivan, Timothy J. (author)
Journal of Earthquake Engineering ; 27 ; 929-958
2023-03-12
30 pages
Article (Journal)
Electronic Resource
Unknown
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