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A platform for research: civil engineering, architecture and urbanism
COMPOSITE STRUCTURE OF STEEL GIRDER AND PRECAST FLOOR SLAB, AND CONSTRUCTION METHOD THEREFOR
PROBLEM TO BE SOLVED: To provide a composite structure of a steel girder and a precast floor slab, and a construction method therefor.SOLUTION: A composite structure 1 of a steel girder 2 and a precast floor slab 3 has: two types of displacement prevention means, one being a penetrating displacement prevention hole 32 that is a blockout hole penetrating through the precast floor slab 3, and the other one being a hole dislocation prevention cotter 33 that is a recess formed on an undersurface of the precast floor slab 3; two types of headed studs for keeping almost even the ratio between the number of the penetrating displacement prevention holes 32 and the number of the hole dislocation prevention cotters 33, one being a long stud S1 disposed on the penetrating displacement prevention hole 32 and the other being a short stud S2 disposed on the hole dislocation prevention cotter 33. A haunch (haunch part 31) is formed at a contacting part between the precast floor slab 3 and the steel girder 2, the haunch reducing tension generating in the precast floor slab 3 and preventing crack formation, and the hole dislocation preventing cotter 33 is formed within the height of the haunch, for securing the thickness of the precast floor slab 3.
【課題】プレキャスト床版と鋼桁との合成構造及びその施工方法を提供する。【解決手段】鋼桁２とプレキャスト床版３との合成構造１において、ずれ止めとして、プレキャスト床版３を貫通する箱抜き孔である貫通ずれ止め３２と、プレキャスト床版３の底面に形成された凹所であるずれ止めコッター３３の２種類を設け、頭付きスタッドとして、貫通ずれ止め３２に配置される長尺スタッドＳ１と、孔ずれ止めコッター３３に配置される短尺スタッドＳ２の２種類を設け、貫通ずれ止め３２とずれ止めコッター３３の数の比率をほぼ一対一となるようにし、プレキャスト床版３の鋼桁２との当接部分には、プレキャスト床版３に生じる引張力を減少させてひび割れを防止するためのハンチ（ハンチ部３１）を形成し、プレキャスト床版３の床版厚を確保するためハンチの高さ内にずれ止めコッター３３を形成する。【選択図】図３
COMPOSITE STRUCTURE OF STEEL GIRDER AND PRECAST FLOOR SLAB, AND CONSTRUCTION METHOD THEREFOR
PROBLEM TO BE SOLVED: To provide a composite structure of a steel girder and a precast floor slab, and a construction method therefor.SOLUTION: A composite structure 1 of a steel girder 2 and a precast floor slab 3 has: two types of displacement prevention means, one being a penetrating displacement prevention hole 32 that is a blockout hole penetrating through the precast floor slab 3, and the other one being a hole dislocation prevention cotter 33 that is a recess formed on an undersurface of the precast floor slab 3; two types of headed studs for keeping almost even the ratio between the number of the penetrating displacement prevention holes 32 and the number of the hole dislocation prevention cotters 33, one being a long stud S1 disposed on the penetrating displacement prevention hole 32 and the other being a short stud S2 disposed on the hole dislocation prevention cotter 33. A haunch (haunch part 31) is formed at a contacting part between the precast floor slab 3 and the steel girder 2, the haunch reducing tension generating in the precast floor slab 3 and preventing crack formation, and the hole dislocation preventing cotter 33 is formed within the height of the haunch, for securing the thickness of the precast floor slab 3.
【課題】プレキャスト床版と鋼桁との合成構造及びその施工方法を提供する。【解決手段】鋼桁２とプレキャスト床版３との合成構造１において、ずれ止めとして、プレキャスト床版３を貫通する箱抜き孔である貫通ずれ止め３２と、プレキャスト床版３の底面に形成された凹所であるずれ止めコッター３３の２種類を設け、頭付きスタッドとして、貫通ずれ止め３２に配置される長尺スタッドＳ１と、孔ずれ止めコッター３３に配置される短尺スタッドＳ２の２種類を設け、貫通ずれ止め３２とずれ止めコッター３３の数の比率をほぼ一対一となるようにし、プレキャスト床版３の鋼桁２との当接部分には、プレキャスト床版３に生じる引張力を減少させてひび割れを防止するためのハンチ（ハンチ部３１）を形成し、プレキャスト床版３の床版厚を確保するためハンチの高さ内にずれ止めコッター３３を形成する。【選択図】図３
COMPOSITE STRUCTURE OF STEEL GIRDER AND PRECAST FLOOR SLAB, AND CONSTRUCTION METHOD THEREFOR
鋼桁とプレキャスト床版との合成構造及びその施工方法
NAKAJIMA AKINORI (author) / HARA KENGO (author) / KAKUMOTO SHU (author) / NIITANI NORIJI (author) / WATASE HIROSHI (author)
2015-12-21
Patent
Electronic Resource
Japanese
IPC:
E01D
BRIDGES
,
Brücken
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