Investigation of Diagonal Strut Actions in Masonry-Infilled Reinforced Concrete Frames
| Autor: | Seung Jae Lee, Tae Sung Eom, Eunjong Yu |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Modified Compression Field Theory
seismic performance 0211 other engineering and technologies 020101 civil engineering Ocean Engineering 02 engineering and technology finite element analysis 0201 civil engineering 021105 building & construction lcsh:Systems of building construction. Including fireproof construction concrete construction Infill lcsh:TH1000-1725 Civil and Structural Engineering Structural material business.industry infilled frame masonry infill Structural engineering Masonry Compression (physics) Stress field equivalent strut Mortar business Beam (structure) Geology |
| Zdroj: | International Journal of Concrete Structures and Materials, Vol 15, Iss 1, Pp 1-14 (2021) |
| ISSN: | 2234-1315 1976-0485 |
| Popis: | This study analytically investigated the behavior of reinforced concrete frames with masonry infills. For the analysis, VecTor2, a nonlinear finite element analysis program that implements the Modified Compression Field Theory and Disturbed Stress Field Model, was used. To account for the slip behavior at the mortar joints in the masonry element, the hyperbolic Mohr–Coulomb yield criterion, defined as a function of cohesion and friction angle, was used. The analysis results showed that the lateral resistance and failure mode of the infilled frames were significantly affected by the thickness of the masonry infill, cohesion on the mortar joint–brick interface, and poor mortar filling (or gap) on the masonry boundary under the beam. Diagonal strut actions developed along two or three load paths on the mortar infill, including the backstay actions near the tension column and push-down actions near the compression columns. Such backstay and push-down actions increased the axial and shear forces of columns, and ultimately affect the strength, ductility, and failure mode of the infilled frames. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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