A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
CONCRETE BRIDGE REINFORCEMENT STRUCTURE AND REINFORCEMENT METHOD
To provide a concrete bridge reinforcement structure and reinforcement method that enable simultaneous reinforcement against positive bending and negative bending without changing a height of a bridge surface, and that eliminate the work of constructing a floor slab waterproof layer.SOLUTION: Concrete that forms an upper surface of an existing floor slab is replaced with a concrete material containing silica fume or a high performance water reducing agent without a coarse aggregate, and containing reinforcing fibers having a diameter of 0.1 to 0.25 mm, a length of 10 to 24 mm, and a tensile strength of 2,000 Mpa or more, to form a replacement concrete layer. A thickness of the floor slab including the replacement concrete layer is equal to an original thickness of the existing floor slab.SELECTED DRAWING: Figure 1
【課題】橋梁表面の高さを変えることなく正曲げと負曲げに対して同時に補強することを可能とし、更に、床版防水層を施工する作業を省くことを可能とするコンクリート橋の補強構造及び補強方法を提供する。【解決手段】既設床版の上面をなすコンクリートが、粗骨材を含まずシリカフューム又は高性能減水剤を含み、直径０．１〜０．２５ｍｍ、長さ１０〜２４ｍｍ、引張強度２０００Ｍｐａ以上の補強用繊維を含むコンクリート材料で打替えられて打替えコンクリート層とされ、前記打替えコンクリート層を含めた床版の厚さが前記既設床版の元の厚さと等しいものとなる。【選択図】図１
CONCRETE BRIDGE REINFORCEMENT STRUCTURE AND REINFORCEMENT METHOD
To provide a concrete bridge reinforcement structure and reinforcement method that enable simultaneous reinforcement against positive bending and negative bending without changing a height of a bridge surface, and that eliminate the work of constructing a floor slab waterproof layer.SOLUTION: Concrete that forms an upper surface of an existing floor slab is replaced with a concrete material containing silica fume or a high performance water reducing agent without a coarse aggregate, and containing reinforcing fibers having a diameter of 0.1 to 0.25 mm, a length of 10 to 24 mm, and a tensile strength of 2,000 Mpa or more, to form a replacement concrete layer. A thickness of the floor slab including the replacement concrete layer is equal to an original thickness of the existing floor slab.SELECTED DRAWING: Figure 1
【課題】橋梁表面の高さを変えることなく正曲げと負曲げに対して同時に補強することを可能とし、更に、床版防水層を施工する作業を省くことを可能とするコンクリート橋の補強構造及び補強方法を提供する。【解決手段】既設床版の上面をなすコンクリートが、粗骨材を含まずシリカフューム又は高性能減水剤を含み、直径０．１〜０．２５ｍｍ、長さ１０〜２４ｍｍ、引張強度２０００Ｍｐａ以上の補強用繊維を含むコンクリート材料で打替えられて打替えコンクリート層とされ、前記打替えコンクリート層を含めた床版の厚さが前記既設床版の元の厚さと等しいものとなる。【選択図】図１
CONCRETE BRIDGE REINFORCEMENT STRUCTURE AND REINFORCEMENT METHOD
コンクリート橋の補強構造及び補強方法
MAKITA TORU (author) / KITAGAWA HIROKAZU (author) / KUMAGAI SHINICHIRO (author) / TATEMATSU HIDEYUKI (author) / WATANABE ARIHISA (author) / ICHINOMIYA TOSHIMICHI (author) / YANAI SHUJI (author)
2020-10-22
Patent
Electronic Resource
Japanese
IPC:
E01D
BRIDGES
,
Brücken
Concrete Member Reinforcement Method and Concrete Reinforcement Structure
| European Patent Office | 2023
Reinforcement for Concrete Bridge Decks
| NTIS | 1983
REINFORCEMENT STRUCTURE AND REINFORCEMENT METHOD OF A BRIDGE
| European Patent Office | 2017
REINFORCEMENT METHOD AND REINFORCEMENT STRUCTURE FOR CONCRETE STRUCTURE
| European Patent Office | 2016