مقاله Experimental study on separating reinforced concrete infill walls from steel moment frames : تی پی بین

خلاصه مقاله

In a multistory building frame, stiff reinforced concrete (RC) infill walls may be terminated above the first story for architectural purposes, which may create a soft-first-story structure. To eliminate this detrimental situation, this paper proposes to separate the RC infill wall from the steel moment frame by slits. An experimental program of four one-bay-by-one-story steel moment frame specimens along with pushover analyses of multistory frame models were presented to validate the proposed idea. This study conducted cyclic loading tests on a total of four moment-resisting-frame specimens, which included one bare frame; one with ordinary RC infill wall; and two with side slits between RC wall and frame members. Furthermore, pushover analyses of multistory frame models with soft first story configurations were also conducted to illustrate the effect of RC infill walls with or without slit separation. Both experimental and analytical results showed that the stiff RC infill wall dominated the lateral resistance and drift capacity of the test specimens, and that by adding slit-separated features at the edges of infill walls improved the drift capacity. It is concluded that the slit-separated features can be a viable option to eliminate the soft-story problem caused by vertically irregular configuration of RC infill walls.

نویسندگان

Ruey-Shyang Ju [ Graduate school of Engineering Science and Technology, National Yunlin University of Science and Technology, Taiwan, ROC ]

Hung-Jen Lee [ Department of Construction Engineering, National Yunlin University of Science and Technology, Taiwan, ROC ]

Cheng-Cheng Chen [ Department of Construction Engineering, National Taiwan University of Science and Technology, Taiwan, ROC ]

Chi-Chun Tao [ Architecture and Building Research Institute, Ministry of the Interior, Taiwan, ROC ]

کلمات کلیدی

Steel frame Infill wall Drift ratio Soft story Seismic design

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Journal of Constructional Steel Research

The Journal of Constructional Steel Research provides an international forum for the presentation and discussion of the latest developments in structural steel research and their applications. It is aimed not only at researchers but also at those likely to be most affected by research results, i.e. designers and fabricators. Original papers of a high standard dealing with all aspects of steel research including theoretical and experimental research on elements, assemblages, connection and material properties are considered for publication.

حوزه های تحت پوشش : Constructional Steel