Static and Dynamic Response Analysis of Long-Span Concrete Girder with Chord Support

LIU Mingliang; JIAO Yongkang; HAI Ran; LI Jiming; HUI Cun; ZHOU Chunjuan; YANG Pan

doi:10.13204/j.gyjzG22060106

Volume 53 Issue 3

Mar. 2023

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LIU Mingliang, JIAO Yongkang, HAI Ran, LI Jiming, HUI Cun, ZHOU Chunjuan, YANG Pan. Static and Dynamic Response Analysis of Long-Span Concrete Girder with Chord Support[J]. INDUSTRIAL CONSTRUCTION, 2023, 53(3): 146-151,78. doi: 10.13204/j.gyjzG22060106

Citation:

LIU Mingliang, JIAO Yongkang, HAI Ran, LI Jiming, HUI Cun, ZHOU Chunjuan, YANG Pan. Static and Dynamic Response Analysis of Long-Span Concrete Girder with Chord Support[J]. INDUSTRIAL CONSTRUCTION, 2023, 53(3): 146-151,78. doi: 10.13204/j.gyjzG22060106

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Static and Dynamic Response Analysis of Long-Span Concrete Girder with Chord Support

doi: 10.13204/j.gyjzG22060106

1. Shanxi Architecture Science Research Institute Co., Ltd., Xi'an 710082, China;
2. School of Architecture and Civil Engineering, Zhongyuan University of Technology, Zhengzhou 450007, China;
3. School of Civil Engineering, Chang'an University, Xi'an 710061, China;
4. SCEGC No. 6 Construction Engineering Group Co., Ltd., Xi'an 712099, China

Received Date: 2022-06-01

Abstract

Abstract

One gymnasium of a middle school is a long-span concrete structure with chord support. By changing the structural parameters, such as the concrete strength grade, number of struts, the vertical span ratio, the static performance of the concrete girder with chord support was studied. The natural vibration characteristic of the concrete structures with chord support was analyzed by using multiple Ritz vector method. Based on this study, the impact on dynamic response performance of the concrete structures with chord support under unidirectional and three-way seismic action was studied respectively. The results show that the changes of the number of struts and the vertical span ratio have great influence on the static performance of the structure. The fundamental frequency of long span concrete structure with chord support is small and the distribution of low order frequency is dense. Under seismic action, the maximum vertical elastic displacement response of the structure appears in the middle of the span, and the displacement value meets the requirements of the code. The difference between the strut axial force and the cable force is small between the unidirectional and three-way seismic wave input.
- long-span concrete structure with chord support,
- static characteristics,
- natural vibration characteristics,
- dynamic response,
- numerical simulation

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References(15)

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