A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
EXISTING COLUMN REINFORCEMENT STRUCTURE AND REINFORCEMENT METHOD
PROBLEM TO BE SOLVED: To improve a flexural capacity of an existing column.SOLUTION: A reinforcing steel part comprises: multiple main reinforcements 5a, which are vertically placed along a circumference of a bridge leg part 3 of a bridge 1; and a spiral hoop 5b, which is spirally wound around the circumference of the bridge leg 3 so as to surround multiple main reinforcements 5a. A reinforcement structure part 5 is formed by disposing the reinforcing steel part on the circumference of the bridge leg part and disposing a mortar part 5c so as to surround the reinforcement steel part. A flexural capacity of the bridge leg part 3 can be improved by disposing multiple main reinforcements 5a along the circumference of the bridge leg part 3. A shear capacity of the bridge leg part 3 can be improved by winding the spiral hoop 5b around the circumference of the bridge leg part 3. As a thickness of the reinforcement structure part 5 can be reduced by covering the reinforcement steel part consisting of the main reinforcements 5a and the spiral hoop 5b with the mortar part 5c, a cross-sectional area, which intersects in an axial direction of the bridge leg part 3 after reinforcement, can be reduced.SELECTED DRAWING: Figure 3
【課題】既設柱の曲げ耐力を向上させる。【解決手段】橋梁１の橋脚部３の外周に、その外周に沿って縦置きされた複数本の主筋５ａと、複数本の主筋５ａを取り囲むように橋脚部３の外周に螺旋状に巻かれた螺旋フープ筋５ｂとで構成される補強鉄筋部を設けるとともに、その補強鉄筋部を覆うようにモルタル部５ｃを設けることで補強構造部５を形成した。橋脚部３の外周に複数本の主筋５ａを設けたことにより橋脚部３の曲げ耐力を向上させることができるとともに、橋脚部３の外周に螺旋フープ筋５ｂを巻くことにより橋脚部３の剪断耐力を向上させることができる。また、主筋５ａと螺旋フープ筋５ｂとで構成される補強鉄筋部をモルタル部５ｃで覆うことにより補強構造部５の厚さを薄くすることができるので、補強後の橋脚部３の軸方向に交差する断面の面積を小さくすることができる。【選択図】図３
EXISTING COLUMN REINFORCEMENT STRUCTURE AND REINFORCEMENT METHOD
PROBLEM TO BE SOLVED: To improve a flexural capacity of an existing column.SOLUTION: A reinforcing steel part comprises: multiple main reinforcements 5a, which are vertically placed along a circumference of a bridge leg part 3 of a bridge 1; and a spiral hoop 5b, which is spirally wound around the circumference of the bridge leg 3 so as to surround multiple main reinforcements 5a. A reinforcement structure part 5 is formed by disposing the reinforcing steel part on the circumference of the bridge leg part and disposing a mortar part 5c so as to surround the reinforcement steel part. A flexural capacity of the bridge leg part 3 can be improved by disposing multiple main reinforcements 5a along the circumference of the bridge leg part 3. A shear capacity of the bridge leg part 3 can be improved by winding the spiral hoop 5b around the circumference of the bridge leg part 3. As a thickness of the reinforcement structure part 5 can be reduced by covering the reinforcement steel part consisting of the main reinforcements 5a and the spiral hoop 5b with the mortar part 5c, a cross-sectional area, which intersects in an axial direction of the bridge leg part 3 after reinforcement, can be reduced.SELECTED DRAWING: Figure 3
【課題】既設柱の曲げ耐力を向上させる。【解決手段】橋梁１の橋脚部３の外周に、その外周に沿って縦置きされた複数本の主筋５ａと、複数本の主筋５ａを取り囲むように橋脚部３の外周に螺旋状に巻かれた螺旋フープ筋５ｂとで構成される補強鉄筋部を設けるとともに、その補強鉄筋部を覆うようにモルタル部５ｃを設けることで補強構造部５を形成した。橋脚部３の外周に複数本の主筋５ａを設けたことにより橋脚部３の曲げ耐力を向上させることができるとともに、橋脚部３の外周に螺旋フープ筋５ｂを巻くことにより橋脚部３の剪断耐力を向上させることができる。また、主筋５ａと螺旋フープ筋５ｂとで構成される補強鉄筋部をモルタル部５ｃで覆うことにより補強構造部５の厚さを薄くすることができるので、補強後の橋脚部３の軸方向に交差する断面の面積を小さくすることができる。【選択図】図３
EXISTING COLUMN REINFORCEMENT STRUCTURE AND REINFORCEMENT METHOD
既設柱の補強構造および補強方法
YAMAGUCHI OSAMU (author) / NUMATA KEN (author) / MISAWA TAKASHI (author)
2016-06-20
Patent
Electronic Resource
Japanese
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