RESEARCH ON MECHANICAL PROPERTIES AND STRESS MECHANISM OF EARTHQUAKE-RESILIENT PREFABRICATED OPENING-WEB CHANNEL BEAM-COLUMN JOINTS

ZHANG Ailin; CHENG Kuikui; JIANG Ziqin; WEI Shilan; SHEN Cunjie

doi:10.13204/j.gyjz202003006

Volume 50 Issue 3

Mar. 2020

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ZHANG Ailin, CHENG Kuikui, JIANG Ziqin, WEI Shilan, SHEN Cunjie. RESEARCH ON MECHANICAL PROPERTIES AND STRESS MECHANISM OF EARTHQUAKE-RESILIENT PREFABRICATED OPENING-WEB CHANNEL BEAM-COLUMN JOINTS[J]. INDUSTRIAL CONSTRUCTION, 2020, 50(3): 29-35. doi: 10.13204/j.gyjz202003006

Citation:

ZHANG Ailin, CHENG Kuikui, JIANG Ziqin, WEI Shilan, SHEN Cunjie. RESEARCH ON MECHANICAL PROPERTIES AND STRESS MECHANISM OF EARTHQUAKE-RESILIENT PREFABRICATED OPENING-WEB CHANNEL BEAM-COLUMN JOINTS[J]. INDUSTRIAL CONSTRUCTION, 2020, 50(3): 29-35. doi: 10.13204/j.gyjz202003006

Citation:

ZHANG Ailin, CHENG Kuikui, JIANG Ziqin, WEI Shilan, SHEN Cunjie. RESEARCH ON MECHANICAL PROPERTIES AND STRESS MECHANISM OF EARTHQUAKE-RESILIENT PREFABRICATED OPENING-WEB CHANNEL BEAM-COLUMN JOINTS[J]. INDUSTRIAL CONSTRUCTION, 2020, 50(3): 29-35. doi: 10.13204/j.gyjz202003006

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RESEARCH ON MECHANICAL PROPERTIES AND STRESS MECHANISM OF EARTHQUAKE-RESILIENT PREFABRICATED OPENING-WEB CHANNEL BEAM-COLUMN JOINTS

doi: 10.13204/j.gyjz202003006

1. College of Architecture and Civil Engineering, Beijing University of Technology, Beijing 100124, China;
2. Beijing Engineering Research Center of High-Rise and Large-Span Prestressed Steel Structure, Beijing University of Technology, Beijing 100124, China;
3. Beijing Advanced Innovation Center for Future City Design, Beijing University of Civil Engineering and Architecture, Beijing 100044, China

Received Date: 2019-12-10

Abstract

Abstract

The key to the earthquake-resilience is to ensure that the main components of the joint do not undergo plastic deformation, so after earthquake, the joint function can be restored by replacing the replaceable members. On that basis, a new type of joint called earthquake-resilient prefabricated opening-web channel beam-column joint was proposed. The cantilever beam and the opening-web channel beam were connected by flange cover plates and web connecting plates. The flange of the cantilever beam was strengthened and the flange cover plates were weakened like dog bone, so the plastic hinge could be transferred to the flange cover plates effectively. A total of 5 different numerical examples were designed for finite element analysis, mainly to investigate the influence of the thickness of the flange cover plates, the middle bolts interval, the width of dog bone weakening section and the number of bolts on the mechanical properties and earthquake-resilience of joints. The load-displacement curve, failure modes of joints, relative slip curve, stress curves were analyzed in detail. The results showed that this new type of joint had good bearing capacity and could meet the requirements of earthquake-resilience. The dog bone weakening of flange cover plates could realize the damage control effectively. The thickness of flange cover plates mainly affected the yield load and peak load of the joint. However, the middle bolts interval would affect the peak load of the joint, not the yield load.
- earthquake-resilience,
- beam-column joint,
- dog bone weakening section,
- opening-web channel beam,
- finite element analysis

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References(27)

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