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A platform for research: civil engineering, architecture and urbanism
ROUGHENING CONSTRUCTION METHOD
To provide a roughening construction method capable or more surely securing shear bearing force of a joint part of existing concrete and additionally placed concrete to be expected by design.SOLUTION: In the roughening construction method for forming a number of shear keys 4 recessed in a cylinder shape in interval on a construction surface 1a of existing concrete 1 on which concrete is additionally placed, shear bearing force needed for a joint part 3 of the existing concrete 1 and additionally placed concrete 2 is calculated, combinations of a diameter, a depth and an arrangement number of the shear keys 4 satisfying the calculated shear bearing force are obtained, and the arrangement number of the shear keys 4 satisfying the combinations under the condition that the diameter and the depth of the shear keys 4 are within a predefined tolerance is calculated. Further, the diameter and the depth are arranged within the tolerance and the shear keys 4 of the calculated arrangement number are formed on the construction surface 1a.SELECTED DRAWING: Figure 2
【課題】設計で期待されている既設コンクリートと増し打ちコンクリートとの接合部のせん断耐力をより確実に確保できる目荒らし施工方法を提供する。【解決手段】コンクリートを増し打ちする既設コンクリート１の施工表面１ａに間隔をあけて多数の円柱形状に窪んだシアキー４を形成する目荒らし施工方法において、既設コンクリート１と増し打ちコンクリート２との接合部３に要求されるせん断耐力を算出し、算出したせん断耐力を満足するシアキー４の直径、深さおよび配置数の組合せを求め、シアキー４の直径および深さを予め設定した許容範囲内にした条件下で、前記組合せを満たすシアキー４の配置数を算出する。そして、直径および深さを前記許容範囲内にして、算出した配置数のシアキー４を施工表面１ａに形成する。【選択図】図２
ROUGHENING CONSTRUCTION METHOD
To provide a roughening construction method capable or more surely securing shear bearing force of a joint part of existing concrete and additionally placed concrete to be expected by design.SOLUTION: In the roughening construction method for forming a number of shear keys 4 recessed in a cylinder shape in interval on a construction surface 1a of existing concrete 1 on which concrete is additionally placed, shear bearing force needed for a joint part 3 of the existing concrete 1 and additionally placed concrete 2 is calculated, combinations of a diameter, a depth and an arrangement number of the shear keys 4 satisfying the calculated shear bearing force are obtained, and the arrangement number of the shear keys 4 satisfying the combinations under the condition that the diameter and the depth of the shear keys 4 are within a predefined tolerance is calculated. Further, the diameter and the depth are arranged within the tolerance and the shear keys 4 of the calculated arrangement number are formed on the construction surface 1a.SELECTED DRAWING: Figure 2
【課題】設計で期待されている既設コンクリートと増し打ちコンクリートとの接合部のせん断耐力をより確実に確保できる目荒らし施工方法を提供する。【解決手段】コンクリートを増し打ちする既設コンクリート１の施工表面１ａに間隔をあけて多数の円柱形状に窪んだシアキー４を形成する目荒らし施工方法において、既設コンクリート１と増し打ちコンクリート２との接合部３に要求されるせん断耐力を算出し、算出したせん断耐力を満足するシアキー４の直径、深さおよび配置数の組合せを求め、シアキー４の直径および深さを予め設定した許容範囲内にした条件下で、前記組合せを満たすシアキー４の配置数を算出する。そして、直径および深さを前記許容範囲内にして、算出した配置数のシアキー４を施工表面１ａに形成する。【選択図】図２
ROUGHENING CONSTRUCTION METHOD
目荒らし施工方法
HIWATARI TAKESHI (author) / ABE TAKAHIDE (author) / SAKAMOTO KEITA (author)
2021-04-15
Patent
Electronic Resource
Japanese
IPC:
E04G
SCAFFOLDING
,
Baugerüste
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