A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
BRIDGE WIDENING METHOD
PROBLEM TO BE SOLVED: To provide a bridge widening method which can shorten the construction period.SOLUTION: A bridge widening method for bridges which have concrete floor slabs arranged to span abutments or piers, comprises: a preloading process which holds at least one side of an existing floor slab 11, the side facing a new floor slab 12 and being applied with upward load; a forming process of the new floor slab 12, in which concrete is cast while the new floor slab 12 for the widening is placed adjacently to the existing floor slab 11 with the level held practically the same as the holding level of the existing floor slab 11 set during the preloading process; and a hold-release process which releases the holding of the existing floor slab 11 and the new floor slab 12 after casting concrete.SELECTED DRAWING: Figure 7
【課題】工期の短縮を図ることができる橋梁拡幅工法を提供する。【解決手段】橋台又は橋脚間上に跨がってコンクリート床版が配置された橋梁の拡幅工法であって、既設床版１１の少なくとも新設床版１２側を、上向きに荷重をかけて保持するプレロード工程、拡幅用新設床版１２を、既設床版１１に隣接させて、そのレベルをプレロード工程における既設床版１１の保持レベルと実質的に同一に保持したままでコンクリート打設を行う新設床版１２構成工程、コンクリート打設後に、既設床版１１の保持及び新設床版１２保持を解放する保持解放工程、を有する。【選択図】図７
BRIDGE WIDENING METHOD
PROBLEM TO BE SOLVED: To provide a bridge widening method which can shorten the construction period.SOLUTION: A bridge widening method for bridges which have concrete floor slabs arranged to span abutments or piers, comprises: a preloading process which holds at least one side of an existing floor slab 11, the side facing a new floor slab 12 and being applied with upward load; a forming process of the new floor slab 12, in which concrete is cast while the new floor slab 12 for the widening is placed adjacently to the existing floor slab 11 with the level held practically the same as the holding level of the existing floor slab 11 set during the preloading process; and a hold-release process which releases the holding of the existing floor slab 11 and the new floor slab 12 after casting concrete.SELECTED DRAWING: Figure 7
【課題】工期の短縮を図ることができる橋梁拡幅工法を提供する。【解決手段】橋台又は橋脚間上に跨がってコンクリート床版が配置された橋梁の拡幅工法であって、既設床版１１の少なくとも新設床版１２側を、上向きに荷重をかけて保持するプレロード工程、拡幅用新設床版１２を、既設床版１１に隣接させて、そのレベルをプレロード工程における既設床版１１の保持レベルと実質的に同一に保持したままでコンクリート打設を行う新設床版１２構成工程、コンクリート打設後に、既設床版１１の保持及び新設床版１２保持を解放する保持解放工程、を有する。【選択図】図７
BRIDGE WIDENING METHOD
橋梁拡幅工法
NABEYA MASASHI (author) / ONO TOMOYOSHI (author) / KATSUMI TETSUSHI (author) / SAITO TATSUYA (author) / KITAGAWA SHINYA (author)
2017-11-16
Patent
Electronic Resource
Japanese
IPC:
E01D
BRIDGES
,
Brücken
Online Contents | 1998
STEEL BRIDGE WIDENING INSTALLATION DEVICE AND STEEL BRIDGE WIDENING INSTALLATION METHOD
| European Patent Office | 2019
| NTIS | 1982