Patent ID: 9334642
Filing Date: 2016-05-10
CPC Classification: E04B

Claim Text:
1. A connection structure of a column and beams comprising: a column having an approximately rectangular cross-sectional outline; a pair of diaphragms formed on the column; a first beam of which flange parts are connected to an upper diaphragm and a lower diaphragm of the diaphragms respectively; a second beam that has a height different to the first beam and is connected to the column in a direction different to the first beam; and a reinforcing member connected to outer surfaces of the column, wherein the reinforcing member has a first connecting part and a second connecting part that are formed perpendicular to each other to be approximately L-shaped, the first connecting part being connected to a surface of the column to which the second beam is connected and the second connecting part being connected to a surface which is perpendicular to the surface to which the second beam is connected; a first flange part of the second beam is connected to one of the diaphragms; a second flange part of the second beam is connected to an outer surface of the column; a pair of the reinforcing member is connected to both sides of the column so as to interpose the second beam, corner parts of the column are configured with curved surface parts; an inner surface side between the first connecting part and the second connecting part is a concave surface part; the reinforcing member has a convex part which is the component of the reinforcement member which protrudes from both an upper surface and a lower surface of the reinforcement member in a direction perpendicular to both a longitudinal direction of the first connecting part and a longitudinal direction of the second connecting part; the concave surface part is continuously formed on an inner surface of the convex part; at least one of the end parts of the second beam in its width direction projects out to the curved surface part of the column; and the reinforcing member is connected to the column and the second beam with the convex part being inserted into a gap which is formed between the curved surface part and the second flange part at a height of the second flange part of the second beam when a side surface of the column and a side edge part of the second beam are put together and one of edge parts of the second flange part in its width direction projects out to the curved surface part.