EXPERIMENTAL RESEARCH ON INFLUENCE OF CONSTRUCTION JOINTS AND CAST-IN-PLACE FLOORS ON “STRONG COLUMN AND WEAK BEAM” FOR PLANE FRAMES

SUN Yanyan; WANG Zhenbo; XU Jing

doi:10.13204/j.gyjzG19082003

Volume 51 Issue 9

Jan. 2022

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SUN Yanyan, WANG Zhenbo, XU Jing. EXPERIMENTAL RESEARCH ON INFLUENCE OF CONSTRUCTION JOINTS AND CAST-IN-PLACE FLOORS ON “STRONG COLUMN AND WEAK BEAM” FOR PLANE FRAMES[J]. INDUSTRIAL CONSTRUCTION, 2021, 51(9): 127-131. doi: 10.13204/j.gyjzG19082003

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EXPERIMENTAL RESEARCH ON INFLUENCE OF CONSTRUCTION JOINTS AND CAST-IN-PLACE FLOORS ON “STRONG COLUMN AND WEAK BEAM” FOR PLANE FRAMES

doi: 10.13204/j.gyjzG19082003

1. School of Architecture and Civil Engineering, Suqian College, Suqian 223800, China;
2. College of Civil Engineering, Nanjing Tech University, Nanjing 210009, China

Received Date: 2019-08-20
Available Online: 2022-01-11

Abstract

Abstract

To study influence of construction joints and cast-in-place floors on the "strong column and weak beam" for RC plane frames, horizontal low-cycle repeated tests were conducted on three RC plane frames with one story and two spans, the failure modes and hysteresis curves of each specimen were analyzed. The results showed the plane frame with construction joints at beam ends failed due to plastic hinges at beam ends, and the plane frame with the cast-in-place floors failed due to plastic hinges at column ends; the construction joints at beam ends reduced the integrity of frames, which were more prone to the "strong column weak beam". The aseismic performances of structures were poorer; cast-in-place floors could enhanced the bearing capacity of frame beams, including the yield loads, ultimate loads and corresponding displacement of structures, and increased the structural energy consumption.
- construction joint,
- cast-in-place floor,
- plane frame

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References(8)

References

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