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A platform for research: civil engineering, architecture and urbanism
Masonry infill construction and retrofit technique for the infill-frame interaction mitigation: Test results
HighlightsAn innovative infill construction and retrofit technique is proposed and tested.The infill is partitioned by vertical elements connected to the frame beams.The vertical elements restrain the infill out-of-plane ensuring over-strength.A negligible infill-frame interaction is obtained in the infill in-plane response.The technique can be applied to existing infill without demolishing them.
AbstractThe paper describes the set-up and testing of an innovative construction technique for masonry infill, which can provide a flexible and predictable in-plane response to the infill inside the frame, together with a stable and reliable out-of-plane response. The design strategy is to downgrade the infill reaction inside the structural frame thanks to a dramatic reduction of the masonry in-plane stiffness. The infill is partitioned by vertical planks (or equivalent beams) into sub-panels, free to relatively slide and rock on their toes. The planks connected to the beams provide the necessary out-of-plane stability. The solution was tested for application in both new and existing infills and construction details are discussed. A comparison is also presented with the performance of two infills, one continuous and one with horizontal sub-panels, previously tested under the same conditions. The observed infill downgrade makes practically negligible the infill-frame interaction and the post-earthquake masonry damage.
Masonry infill construction and retrofit technique for the infill-frame interaction mitigation: Test results
HighlightsAn innovative infill construction and retrofit technique is proposed and tested.The infill is partitioned by vertical elements connected to the frame beams.The vertical elements restrain the infill out-of-plane ensuring over-strength.A negligible infill-frame interaction is obtained in the infill in-plane response.The technique can be applied to existing infill without demolishing them.
AbstractThe paper describes the set-up and testing of an innovative construction technique for masonry infill, which can provide a flexible and predictable in-plane response to the infill inside the frame, together with a stable and reliable out-of-plane response. The design strategy is to downgrade the infill reaction inside the structural frame thanks to a dramatic reduction of the masonry in-plane stiffness. The infill is partitioned by vertical planks (or equivalent beams) into sub-panels, free to relatively slide and rock on their toes. The planks connected to the beams provide the necessary out-of-plane stability. The solution was tested for application in both new and existing infills and construction details are discussed. A comparison is also presented with the performance of two infills, one continuous and one with horizontal sub-panels, previously tested under the same conditions. The observed infill downgrade makes practically negligible the infill-frame interaction and the post-earthquake masonry damage.
Masonry infill construction and retrofit technique for the infill-frame interaction mitigation: Test results
Preti, Marco (author) / Bolis, Valentino (author)
Engineering Structures ; 132 ; 597-608
2016-11-21
12 pages
Article (Journal)
Electronic Resource
English
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