000010538 001__ 10538
000010538 005__ 20141205155738.0
000010538 04107 $$aeng
000010538 046__ $$k2008-10-12
000010538 100__ $$aKo, Hyun
000010538 24500 $$aEvaluation of Seismic Behavior for Low-Rise RC Moment Resisting Frame with Masonry Infill Walls

000010538 24630 $$n14.$$pProceedings of the 14th World Conference on Earthquake Engineering
000010538 260__ $$b
000010538 506__ $$arestricted
000010538 520__ $$2eng$$aMasonry infill walls are frequently used as interior partitions and exterior walls in low- or middle- rise RC buildings. In the design and assessment of buildings, the infill walls are usually treated as non-structural elements and they are ignored in analytical models because they are assumed to be beneficial to the structural responses. Therefore, their influences on the structural response are ignored. In case of buildings constructed in USA, high seismicity regions, infill walls have lower strength and stiffness than the boundary frames or they are separated from the boundary frames. Thus, previous assumptions may be reasonable. However, these systems are not usually employed in most of other countries. Therefore, the differences in seismic behaviors of RC buildings with/without masonry infill walls, which are ignored in structural design, need to be investigated. In previous studies, the infill walls have high lateral resistance and tend to partially separate from the boundary frames. And they form a compression strut mechanism as observed at a high lateral load level. In this study, structural analyses were performed for a masonry infilled low-rise RC moment-resisting frame. The infill walls were modeled as equivalent diagonal struts. And seismic behaviors of RC moment-resisting frame with/without masonry infill walls were evaluated. From analytical results, masonry infill walls can increase the global strength and stiffness of a structure. Consequently, interstory drift ratio will be decreased but seismic forces applied to the structure were increased than design seismic load because natural period of the structure was decreased. And partial damage of infill walls by floor causes vertical irregularity of the strength and stiffness. The inelastic deformation of RC moment-resisting frame with soft story is concentrated on the first story columns and thus, partial damage may have possibility of collapse of system.

000010538 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000010538 653__ $$amasonry infill wall, equivalent diagonal strut, nonlinear analysis, soft story, plastic hinge rotation angle

000010538 7112_ $$a14th World Conference on Earthquake Engineering$$cBejing (CN)$$d2008-10-12 / 2008-10-17$$gWCEE15
000010538 720__ $$aKo, Hyun$$iPark, Yong-Koo$$iLee, Dong-Guen
000010538 8560_ $$ffischerc@itam.cas.cz
000010538 8564_ $$s275359$$uhttps://invenio.itam.cas.cz/record/10538/files/05-01-0237.pdf$$yOriginal version of the author's contribution as presented on CD, Paper ID: 05-01-0237.
000010538 962__ $$r9324
000010538 980__ $$aPAPER