Research on Fatigue Property of Novel Composite Decks with Large-Scale Corrugated Steel Plate and UHPC Layer

LIU Cong; SUN Hongtao; DUAN Shouhui; OUYANG Song; GAO Lili

doi:10.13204/j.gyjzG21061009

Volume 54 Issue 3

Mar. 2024

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LIU Cong, SUN Hongtao, DUAN Shouhui, OUYANG Song, GAO Lili. Research on Fatigue Property of Novel Composite Decks with Large-Scale Corrugated Steel Plate and UHPC Layer[J]. INDUSTRIAL CONSTRUCTION, 2024, 54(3): 161-166. doi: 10.13204/j.gyjzG21061009

Citation:

LIU Cong, SUN Hongtao, DUAN Shouhui, OUYANG Song, GAO Lili. Research on Fatigue Property of Novel Composite Decks with Large-Scale Corrugated Steel Plate and UHPC Layer[J]. INDUSTRIAL CONSTRUCTION, 2024, 54(3): 161-166. doi: 10.13204/j.gyjzG21061009

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Research on Fatigue Property of Novel Composite Decks with Large-Scale Corrugated Steel Plate and UHPC Layer

doi: 10.13204/j.gyjzG21061009

Beijing General Municipal Engineering Design&Research Institute Co., Ltd., Beijing 100088, China

Received Date: 2021-06-10
Available Online: 2024-05-29

Abstract

Abstract

Based on the current studies of various composite bridge decks, a novel composite deck with large-scale corrugated steel plate and ultra-high performance concrete (UHPC) layer is proposed. The fatigue property of the composite deck will be enhanced by increasing rigidity through the high-performance of UHPC and decreasing weld joints through large-scale corrugated steel plate. With the fatigue studies of the novel composite decks, it can be found that the increase of the UHPC thickness and the decrease of the diaphragm distance will reduce the fatigue stress amplitude of all fatigue details, so a UHPC thickness of 70–90 cm and a spacing of less than 4 cm between diaphragms are recommended. The increase of the U-rib height will also reduce the stress amplitude of almost all fatigue details, except the fatigue detail between the web of the U-rib and the diaphragm. Meanwhile, the UHPC thickness and the reinforcement ratio are the critical factors of the fatigue property of the UHPC layer. For the UHPC layer with the thickness less than 9 cm, the limitation of the minimum reinforcement ratio will ensure the fatigue property of the UHPC layer.

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References(13)

References

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