Ensure the progression of cracks occurring in the vertical stiffeners of steel deck bridges is reliably stopped and prevent the occurrence of new cracks.
The "KM Lift Method" is a new repair technique for damage occurring at the vertical stiffeners and deck plate welds of steel deck plate box girder bridges. This method employs a different approach from conventional techniques, closely bonding the deck plate with specially designed reinforcement members to achieve a high repair effect. Additionally, the optimally placed stiffening members allow for constant visibility of the damaged weld areas. 【Features】 ■ Increases flange rigidity without disrupting traffic ■ Only two bolt holes are required for processing existing structures ■ Reinforcement members are lifted up due to the pin effect ■ Monitoring holes allow for checking the condition of crack propagation areas ■ High reinforcement effect leads to stress reduction (90% reduction in maximum stress range and 80% reduction in equivalent stress range) *For more details, please refer to the PDF document or feel free to contact us.
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basic information
【Process】 ■Fixing the hole drilling jig ↓ ■Hole drilling ↓ ■Improving contact properties ↓ ■Installing KM lift ↓ ■Bolt tightening *For more details, please refer to the PDF document or feel free to contact us.
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For more details, please refer to the PDF document or feel free to contact us.
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MK Engineering Co., Ltd. conducts comprehensive engineering services that support major infrastructure for roads, railways, and new transportation systems. Our experienced engineers directly investigate these infrastructures, perform various non-destructive tests and diagnostics, and provide total support for post-investigation measures, repair and reinforcement design, arrangement of construction companies, and construction quality management.
