PURPOSE: To improve a proof stress against a shear stress by a method wherein the slope parts of a pair of main reinforcements each having a central part bent to the inside are formed in X-type bar arrangement where the slope parts are linearly interconnected.
CONSTITUTION: A plurality of main reinforcements 6 are arranged vertically in a column 1 and X-type bar reinforcement is formed by a pair of the main reinforcements 6, arranged in a symmetrical position with the central axis of the column 1 nipped therebetween, of a plurality of the main reinforcements 6. The main reinforcements 6 to form the X-type bar reinforcement has its upper part and lower part positioned at the peripheral edge part of each column 1 at each floor. A portion therebetween is bent in a manner to expand inward and its central part is positioned in the vicinity of the central axis of the column 1. Further, the portion, ranging from the upper part to the central part of the main bar reinforcement 6, forms a slope extending obliquely downward and a portion ranging from the lower part to the central part forms a slope extending obliquely upward, and the central parts of the main reinforcements 6 are intercoupled.
| WO/2010/056096 | BEAM AND METHOD OF PRODUCTION THEREOF |
| JP2006341402 | HOLLOW PCA MEMBER AND CONCRETE PILLAR MATERIAL |
| JP6432764 | Column joint structure |
OGAWA YUICHIRO
HASHIMOTO MASAYOSHI
YOSHIMURA MASAHIRO
| JPS52121917A | 1977-10-13 | |||
| JPS52118824A | 1977-10-05 | |||
| JPS6393947A | 1988-04-25 |