Cyclic Behavior of Replaceable Steel Coupling Beams
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Bibliographic Details
| Author(s): |
Xiaodong Ji
Yandong Wang Qifeng Ma Jiaru Qian |
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| Medium: | conference paper | ||||
| Language(s): | English | ||||
| Conference: | IABSE Conference: Elegance in structures, Nara, Japan, 13-15 May 2015 | ||||
| Published in: | IABSE Conference Nara 2015 | ||||
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| Page(s): | 478-479 | ||||
| Total no. of pages: | 8 | ||||
| Year: | 2015 | ||||
| DOI: | 10.2749/222137815815775934 | ||||
| Abstract: |
For improving the resilience capacity, a replaceable steel coupling beam is developed, which comprises a central "fuse" shear link connected to normal steel segments at its two ends. This paper presents a series of quasi-static tests used to examine seismic behavior of the replaceable steel coupling beams with various types of connections between shear link and normal segments. The end plate connection with shear key and high-strength bolts showed advantages. The inelastic deformation was found to concentrate in the shear link, while the normal segments remained intact. The replacement of shear link was also demonstrated after the coupling beams experienced the deformation corresponding to the maximum considered earthquake (MCE). The coupling beams reached the inelastic rotation of 0.06 to 0.08 rad, and the fuse shear links underwent the inelastic rotation of 0.15 rad. The overstength factor of very short shear links could reach a value of 2.0. |
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| Keywords: |
connection Seismic Behavior shear link replaceable steel coupling beam replaceability inelastic rotation capacity
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