A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
MAINTENANCE METHOD FOR STEEL BRIDGE
To provide a maintenance method for a steel bridge capable of preventing the reoccurrence of a crack generated in a steel material not temporarily but for a longer period of time.SOLUTION: A maintenance method of a steel bridge suppresses the growth of the crack 110 by forming a through-hole 100 at the tip part of the crack 110 to the crack 110 generated in the steel material 90 of the existing steel bridge and includes a through-hole forming step of forming the through-hole 100 by projecting a projection material and imparting compressive residual stress to the peripheral edge and the inner peripheral surface of the through-hole 100.SELECTED DRAWING: Figure 3
【課題】鋼材に発生した亀裂に対して一時的ではなくもっと長期にわたって亀裂の再発生を防止することのできる鋼橋の保全工法を提供する。【解決手段】既設の鋼橋の鋼材９０に発生した亀裂１１０に対して、当該亀裂１１０の先端部に貫通孔１００を形成して亀裂１１０の成長を抑制する鋼橋の保全工法であって、投射材を投射することによって前記貫通孔１００を形成し、当該貫通孔１００の周縁および内周面に圧縮残留応力を付与する貫通孔形成工程を含む。【選択図】図３
MAINTENANCE METHOD FOR STEEL BRIDGE
To provide a maintenance method for a steel bridge capable of preventing the reoccurrence of a crack generated in a steel material not temporarily but for a longer period of time.SOLUTION: A maintenance method of a steel bridge suppresses the growth of the crack 110 by forming a through-hole 100 at the tip part of the crack 110 to the crack 110 generated in the steel material 90 of the existing steel bridge and includes a through-hole forming step of forming the through-hole 100 by projecting a projection material and imparting compressive residual stress to the peripheral edge and the inner peripheral surface of the through-hole 100.SELECTED DRAWING: Figure 3
【課題】鋼材に発生した亀裂に対して一時的ではなくもっと長期にわたって亀裂の再発生を防止することのできる鋼橋の保全工法を提供する。【解決手段】既設の鋼橋の鋼材９０に発生した亀裂１１０に対して、当該亀裂１１０の先端部に貫通孔１００を形成して亀裂１１０の成長を抑制する鋼橋の保全工法であって、投射材を投射することによって前記貫通孔１００を形成し、当該貫通孔１００の周縁および内周面に圧縮残留応力を付与する貫通孔形成工程を含む。【選択図】図３
MAINTENANCE METHOD FOR STEEL BRIDGE
鋼橋の保全工法
YAMADA HIROFUMI (author) / YAMADA SHOHEI (author) / KINOSHITA KOJI (author)
2024-02-08
Patent
Electronic Resource
Japanese
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