Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
CRACKING PREVENTION METHOD FOR OPENING OF CONCRETE STRUCTURE
PROBLEM TO BE SOLVED: To provide a cracking prevention method to be applied to openings of various locations and forms of a concrete structure, for preventing cracking.SOLUTION: In this method, four virtual surfaces are assumed around an opening C1 of a concrete structure C, the virtual surfaces having an almost square or almost parallel cross-shaped cross-section and surrounding the overall opening C1, using a post-tensioning-type tendon 2. Each of the virtual surfaces has the tendon 2 laid out along the surface and between an edge part of an intersection side and an edge part of the other intersection side, with a fixed-side anchoring section 21 and a tension-side anchoring section 22 of the tendon 2 facing opposite directions, on the surfaces that face each other. Pre-stress is introduced by pulling and holding the tension-side anchoring section 22 of the tendon 2 on each of the surfaces.SELECTED DRAWING: Figure 1
【課題】コンクリート構造物の様々な位置形状の開口部に適用してひび割れを防止する。【解決手段】この方法では、ポストテンション方式の緊張材２を用い、コンクリート構造物Ｃの開口部Ｃ１の周囲に開口部Ｃ１全体を取り囲む断面略四角形又は断面略井桁状をなす４つの仮想面を設定し、これらの仮想面毎に緊張材２を各面間の一方の交差部側の端部と他方の交差部側の端部との間に各面に沿ってかつ相互に対向する各面では互いに緊張材２の固定側定着部２１と緊張側定着部２２を反対にして配置し、各面の緊張材２の緊張側定着部２２を引張り、保持することによりプレストレスを導入する。【選択図】図１
CRACKING PREVENTION METHOD FOR OPENING OF CONCRETE STRUCTURE
PROBLEM TO BE SOLVED: To provide a cracking prevention method to be applied to openings of various locations and forms of a concrete structure, for preventing cracking.SOLUTION: In this method, four virtual surfaces are assumed around an opening C1 of a concrete structure C, the virtual surfaces having an almost square or almost parallel cross-shaped cross-section and surrounding the overall opening C1, using a post-tensioning-type tendon 2. Each of the virtual surfaces has the tendon 2 laid out along the surface and between an edge part of an intersection side and an edge part of the other intersection side, with a fixed-side anchoring section 21 and a tension-side anchoring section 22 of the tendon 2 facing opposite directions, on the surfaces that face each other. Pre-stress is introduced by pulling and holding the tension-side anchoring section 22 of the tendon 2 on each of the surfaces.SELECTED DRAWING: Figure 1
【課題】コンクリート構造物の様々な位置形状の開口部に適用してひび割れを防止する。【解決手段】この方法では、ポストテンション方式の緊張材２を用い、コンクリート構造物Ｃの開口部Ｃ１の周囲に開口部Ｃ１全体を取り囲む断面略四角形又は断面略井桁状をなす４つの仮想面を設定し、これらの仮想面毎に緊張材２を各面間の一方の交差部側の端部と他方の交差部側の端部との間に各面に沿ってかつ相互に対向する各面では互いに緊張材２の固定側定着部２１と緊張側定着部２２を反対にして配置し、各面の緊張材２の緊張側定着部２２を引張り、保持することによりプレストレスを導入する。【選択図】図１
CRACKING PREVENTION METHOD FOR OPENING OF CONCRETE STRUCTURE
コンクリート構造物の開口部のひび割れ防止方法
SAITO ATSUSHI (Autor:in) / KAWAZOE AKIO (Autor:in) / MARUYAMA HIROYUKI (Autor:in)
22.12.2016
Patent
Elektronische Ressource
Japanisch
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