A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
COMPOSITE BEAM AND PCa COMPOSITE BEAM MEMBER CONSTITUTING THE SAME, AND COMPOSITE RIGID-FRAME STRUCTURE
PROBLEM TO BE SOLVED: To narrow a cross sectional area of a beam or improve its strength to secure fire resistant performance, and effectively prevent occurrence of cracking.SOLUTION: A composite beam 2 includes: a beam center part 21 made of high strength concrete and arranged in a sectional center part; and a beam peripheral part 22 made of concrete having a higher water cementitious material ratio and lower strength than those of the high strength concrete and arranged in a peripheral part of the sectional area so as to cover the whole peripheral surface of the beam center part 21. The composite beam 2 is constituted to have a beam main reinforcement 26 and a stirrup 27 arranged only in the beam peripheral part 22.SELECTED DRAWING: Figure 5
【課題】梁の断面積を小さくし、或いは強度を向上し、耐火性能を確保すると共にひび割れの発生を効果的に防止する。【解決手段】高強度コンクリートからなり、断面中央部に配置される梁中央部２１と、高強度コンクリートに比べて水結合材比が高く強度が低いコンクリートからなり、梁中央部２１の全周面を覆うように断面外周部に配置される梁外周部２２とを有し、梁主筋２６及び肋筋２７が梁外周部２２のみに配置されるように複合梁２を構成する。【選択図】図５
COMPOSITE BEAM AND PCa COMPOSITE BEAM MEMBER CONSTITUTING THE SAME, AND COMPOSITE RIGID-FRAME STRUCTURE
PROBLEM TO BE SOLVED: To narrow a cross sectional area of a beam or improve its strength to secure fire resistant performance, and effectively prevent occurrence of cracking.SOLUTION: A composite beam 2 includes: a beam center part 21 made of high strength concrete and arranged in a sectional center part; and a beam peripheral part 22 made of concrete having a higher water cementitious material ratio and lower strength than those of the high strength concrete and arranged in a peripheral part of the sectional area so as to cover the whole peripheral surface of the beam center part 21. The composite beam 2 is constituted to have a beam main reinforcement 26 and a stirrup 27 arranged only in the beam peripheral part 22.SELECTED DRAWING: Figure 5
【課題】梁の断面積を小さくし、或いは強度を向上し、耐火性能を確保すると共にひび割れの発生を効果的に防止する。【解決手段】高強度コンクリートからなり、断面中央部に配置される梁中央部２１と、高強度コンクリートに比べて水結合材比が高く強度が低いコンクリートからなり、梁中央部２１の全周面を覆うように断面外周部に配置される梁外周部２２とを有し、梁主筋２６及び肋筋２７が梁外周部２２のみに配置されるように複合梁２を構成する。【選択図】図５
COMPOSITE BEAM AND PCa COMPOSITE BEAM MEMBER CONSTITUTING THE SAME, AND COMPOSITE RIGID-FRAME STRUCTURE
複合梁及びこれを構成するＰＣａ複合梁部材並びに複合ラーメン構造
MATSUNAGA KENTARO (author) / KOSAKA HIDEYUKI (author)
2016-09-05
Patent
Electronic Resource
Japanese
COLUMN-BEAM STRUCTURE, COMPOSITE BEAM, AND BEAM END MEMBER
| European Patent Office | 2015