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A platform for research: civil engineering, architecture and urbanism
Experimental study on spatial prefabricated self-centering steel frame with beam-column connections containing bolted web friction devices
Highlights We have proposed a spatial prefabricated self-centering steel frame (PSCF). The spatial PSCF has avoided on-site aerial tension of steel strands. A new floor slab is developed to accommodate the frame expansion. Web friction devices are installed to dissipate energy and protect main structure. Design targets of the PSCF have been proposed to conduct performance-based design.
Abstract The structural system of prefabricated self-centering steel frame (PSCF) was proposed previously by the author. Experimental studies focusing on PSCF connections, plane frame, overall structures as well as the numerical simulations were conducted. Compared with the self-centering steel frame (SCF), the PSCF has avoided the on-site aerial tension of steel strands and simultaneously achieves similar seismic performance as well as self-centering capacity. While the self-centering function of both PSCF and SCF may be restrained by conventional floor systems. Based on this thesis, a spatial PSCF with a new type of floor system containing sliding secondary beams was proposed in this paper to enable the frame expansion, and pseudo-dynamic and quasi-static tests toward it were conducted. The test results indicated that the proposed new floor system was reliable and feasible in accommodating the frame expansion. Meanwhile, the spatial PSCF with the new floor system has a favorable self-centering capacity, reliable gap-opening mechanism, superior seismic performance and enough redundancy to withstand multiple aftershocks.
Experimental study on spatial prefabricated self-centering steel frame with beam-column connections containing bolted web friction devices
Highlights We have proposed a spatial prefabricated self-centering steel frame (PSCF). The spatial PSCF has avoided on-site aerial tension of steel strands. A new floor slab is developed to accommodate the frame expansion. Web friction devices are installed to dissipate energy and protect main structure. Design targets of the PSCF have been proposed to conduct performance-based design.
Abstract The structural system of prefabricated self-centering steel frame (PSCF) was proposed previously by the author. Experimental studies focusing on PSCF connections, plane frame, overall structures as well as the numerical simulations were conducted. Compared with the self-centering steel frame (SCF), the PSCF has avoided the on-site aerial tension of steel strands and simultaneously achieves similar seismic performance as well as self-centering capacity. While the self-centering function of both PSCF and SCF may be restrained by conventional floor systems. Based on this thesis, a spatial PSCF with a new type of floor system containing sliding secondary beams was proposed in this paper to enable the frame expansion, and pseudo-dynamic and quasi-static tests toward it were conducted. The test results indicated that the proposed new floor system was reliable and feasible in accommodating the frame expansion. Meanwhile, the spatial PSCF with the new floor system has a favorable self-centering capacity, reliable gap-opening mechanism, superior seismic performance and enough redundancy to withstand multiple aftershocks.
Experimental study on spatial prefabricated self-centering steel frame with beam-column connections containing bolted web friction devices
Zhang, Yanxia (author) / Li, Quangang (author) / Zhuge, Yan (author) / Liu, Anran (author) / Zhao, Wenzhan (author)
Engineering Structures ; 195 ; 1-21
2019-05-27
21 pages
Article (Journal)
Electronic Resource
English
Seismic self-centering steel beam-to-column moment connections using bolted friction devices
| Online Contents | 2008