Experimental and analytical performance evaluation of engineering wood encased concrete-steel beam-column joints
The seismic performance of engineering wood encased concrete-steel (EWECS) beam-column joints is investigated and reported within this paper. Experimental and analytical investigation was carried out on a total of two interior and two exterior beamcolumn joints. These f...
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| Main Authors: | , , , |
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| Other Authors: | |
| Format: | Article |
| Language: | English |
| Published: |
2012
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/95533 http://hdl.handle.net/10220/8394 |
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| Institution: | Nanyang Technological University |
| Language: | English |
| Summary: | The seismic performance of engineering wood encased concrete-steel (EWECS) beam-column joints is investigated and
reported within this paper. Experimental and analytical investigation was carried out on a total of two interior and two exterior beamcolumn
joints. These four beam-column joints typically consisted of an EWECS column and a wood encased steel beam. The primary
parameter was the failure modes of the specimens, namely the beam flexural failure and the joint shear failure. The response
of the specimens was presented in terms of their hysterisis loop behavior, crack pattern, joint shear distortion, and deformation decomposition
ratios. In addition, the results obtained from a three-dimensional nonlinear finite-element analysis simulating their seismic
behaviors were also compared with the test data. The finite-element analysis incorporated both bond stress-slip relationship and crack
interface interaction at the unbonded connection region. The analytical prediction of joint shear strength was satisfactory for both interior
and exterior joints. This validated numerical model was subsequently used to examine the contributions of the steel frame mechanism
formed by the column flange, column web, and stiffener |
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