Full-scale Tests for Seismic Performance Verification of Steel Building Structures wi
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Full-scale Tests for Seismic Performance Verification of Steel Building Structures wi
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Full-scale Tests for Seismic Performance Verification of Steel Building Structures with Hysteretic Dampers

Author: Praween CHUSILP* and Keiichiro SUITA | Size: 0.84 MB | Format: PDF | Quality: Unspecified | Publisher: Annuals of Disas. Prev. Res. Inst., Kyoto Univ., No. 47 C, 2004 | Year: 2004 | pages: 14

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This paper presents an innovative structural system, named weld-free system,
developed to overcome the difficulty in the quality assurance encountered in
construction of steel moment resisting frames with conventional welded connections.
The proposed structural system adopts a mechanical joint equipped with metallicyielding
damper as beam-to-column connection, wherein slip-critical joints are made by
recently developed super high-strength bolts. The structural configuration and loadcarrying
mechanism of the weld-free system are described herein. Key features of the
super high-strength bolts are also introduced. Consequently, two series of experimental
verifications of weld-free steel structures are presented. The first series was conducted
on three full-scale models of weld-free beam-column subassemblies and one base-line
specimen with conventional welded connection. The second series was performed on
the whole full-scale three-story weld-free building. The two test series clearly reveal the
efficiency of the weld-free system in enhancing large and stable hysteresis loops, while
beams and columns above the base can be proportioned to remain elastic under the
design earthquakes.


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