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The Technology of Replacing Bridge Bearings Without Jacking Up the Beams Based on Bidirectional Adjustable Bearings
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Xue ZHANG1, Liang XU2, Le YU3, Pandao LI4
Urban Rapid Rail Transit | 2025, 38(2) : 101 - 105
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Urban Rapid Rail Transit | 2025, 38(2): 101-105
• Civil Engineering Technology •
The Technology of Replacing Bridge Bearings Without Jacking Up the Beams Based on Bidirectional Adjustable Bearings
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Xue ZHANG1, Liang XU2, Le YU3, Pandao LI4
Affiliations
  • 1 Beijing Road & Bridge Ruitong Maintenance Center Co., Ltd. Beijing 102600
  • 2 Beijing Urban Construction Xinjie Rail Transit Engineering Consultants Co., Ltd. Beijing 100166
  • 3 Beijing Rail Transit Construction & Management Co., Ltd. Beijing 100068
  • 4 Beijing General Municipal Engineering Design & Research Institute Co., Ltd. Beijing 100082
Published: 2025-04-01 doi: 10.3969/j.issn.1672-6073.2025.02.014
Outline
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In response to the maintenance needs of bridge bearing defects, existing bearing replacement methods all require jacking up the bridge to complete the bearing replacement, significantly impacting bridge structural safety and traffic operations. This study designs and manufactures a “lowmeltingpoint alloy bidirectional heightadjustable forcemeasuring bridge bearing, leveraging its bidirectional heightadjustable characteristics to develop a technology for replacing bridge bearings without jacking up the bridge. Against the backdrop of practical engineering applications, a comparison is made between the "bridge bearing replacement technology without jacking up the beams” and the existing “bridge bearing replacement technology with jacking up the beams." Utilizing this technology, bridge bearing replacement can be achieved without jacking up the superstructure, effectively avoiding stress changes in the bridge structure caused by jacking and enhancing maintenance efficiency and safety. Additionally, this technology is easy to operate, has minimal impact on traffic operations, and possesses broad applicability and promotional value.

urban rail transit  /  bridge bearing replacement  /  bridge bearing  /  bidirectional adjustable bridge bearing  /  bridge without lifting
Xue ZHANG, Liang XU, Le YU, Pandao LI. The Technology of Replacing Bridge Bearings Without Jacking Up the Beams Based on Bidirectional Adjustable Bearings[J]. Urban Rapid Rail Transit, 2025 , 38 (2) : 101 -105 . DOI: 10.3969/j.issn.1672-6073.2025.02.014
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Year 2025 volume 38 Issue 2
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Article Info
doi: 10.3969/j.issn.1672-6073.2025.02.014
  • Receive Date：2024-04-26
  • Online Date：2025-07-09
  • Published：2025-04-01
Article Data
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History
  • Received：2024-04-26
  • Revised：2024-07-04
Funding
Affiliations
    1 Beijing Road & Bridge Ruitong Maintenance Center Co., Ltd. Beijing 102600
    2 Beijing Urban Construction Xinjie Rail Transit Engineering Consultants Co., Ltd. Beijing 100166
    3 Beijing Rail Transit Construction & Management Co., Ltd. Beijing 100068
    4 Beijing General Municipal Engineering Design & Research Institute Co., Ltd. Beijing 100082
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Citations
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小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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