Full-scale Tests for Seismic Performance Verification of Steel Building
Structures with Hysteretic Dampers
Summary:
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.
Format:
Pages : 14
Size: 850 kb
Author : Praween CHUSILP and Keiichiro SUITA
Download:Full-scale Tests for Seismic Performance Verification of Steel Building
Structures with Hysteretic Dampers
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