A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
SLAB REINFORCEMENT METHOD OF SIDE FASTENING PC BRIDGE
To provide a slab reinforcement method of side fastening PC bridge which can reliably prevent rush-out accidents due to broken PC steel and enables safe construction in shorter time for lower cost.SOLUTION: In a slab reinforcement method of side fastening PC bridge in which PC steel materials 14 are arranged along a bridge axis right-angle direction Y of an upper floor slab 10 and on which pre-stress is applied, executed are: a reinforcement process for performing reinforcement by installing carbon fibers 2, struts or ribs etc as reinforcing members to counter tensile stress acting on the upper floor slab 10 when prestress of the PC steel materials 14 arranged in the upper floor slab 10 are gone; and a prestress release process for relaxing or releasing prestress applied to the PC steel materials 14.SELECTED DRAWING: Figure 1
【課題】ＰＣ鋼材の断裂による飛び出し事故を確実に防止することができるとともに、施工が安全に短時間で安価に行える横締めＰＣ橋の床版補強工法を提供する。【解決手段】上床版部１０の橋軸直角方向Ｙに沿ってＰＣ鋼材１４が配置されてプレストレスが付与された横締めＰＣ橋の床版補強工法において、上床版部１０に配置されていたＰＣ鋼材１４のプレストレスがなくなった際に上床版部１０に作用する引張応力に対抗する補強部材として炭素繊維２、ストラット又はリブなどを設置して補強する補強工程と、ＰＣ鋼材１４に付与されたプレストレスを弛緩又は解除するプレストレス解除工程と、を実行する。【選択図】図１
SLAB REINFORCEMENT METHOD OF SIDE FASTENING PC BRIDGE
To provide a slab reinforcement method of side fastening PC bridge which can reliably prevent rush-out accidents due to broken PC steel and enables safe construction in shorter time for lower cost.SOLUTION: In a slab reinforcement method of side fastening PC bridge in which PC steel materials 14 are arranged along a bridge axis right-angle direction Y of an upper floor slab 10 and on which pre-stress is applied, executed are: a reinforcement process for performing reinforcement by installing carbon fibers 2, struts or ribs etc as reinforcing members to counter tensile stress acting on the upper floor slab 10 when prestress of the PC steel materials 14 arranged in the upper floor slab 10 are gone; and a prestress release process for relaxing or releasing prestress applied to the PC steel materials 14.SELECTED DRAWING: Figure 1
【課題】ＰＣ鋼材の断裂による飛び出し事故を確実に防止することができるとともに、施工が安全に短時間で安価に行える横締めＰＣ橋の床版補強工法を提供する。【解決手段】上床版部１０の橋軸直角方向Ｙに沿ってＰＣ鋼材１４が配置されてプレストレスが付与された横締めＰＣ橋の床版補強工法において、上床版部１０に配置されていたＰＣ鋼材１４のプレストレスがなくなった際に上床版部１０に作用する引張応力に対抗する補強部材として炭素繊維２、ストラット又はリブなどを設置して補強する補強工程と、ＰＣ鋼材１４に付与されたプレストレスを弛緩又は解除するプレストレス解除工程と、を実行する。【選択図】図１
SLAB REINFORCEMENT METHOD OF SIDE FASTENING PC BRIDGE
横締めＰＣ橋の床版補強工法
TOYODA YUSUKE (author) / HARADA TAKUYA (author) / OGATA TATSUO (author) / SHOJI AKIO (author) / TAKAHASHI KENICHI (author)
2021-03-01
Patent
Electronic Resource
Japanese
IPC:
E01D
BRIDGES
,
Brücken
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