COLUMN-BEAM JOINT STRUCTURE, AND CONSTRUCTION OF THE SAME

• Main Authors: KOSAKA HIDEYUKI, DOI KAZUMASA, EGASHIRA HIROSHI, MAEDA SHIGETAKA, KOBAYASHI TOMOKI
• Format: Patent
• Language: English; Japanese
• Published: 08.10.2020
• Subjects: BUILDING; CEILINGS; FIXED CONSTRUCTIONS; FLOORS; GENERAL BUILDING CONSTRUCTIONS; INSULATION OR OTHER PROTECTION OF BUILDINGS; ROOFS; WALLS, e.g. PARTITIONS

To provide a joint structure of a concrete column and a steel beam which has good workability, which can secure sufficient earthquake proof strength and which can reduce manufacturing and constructing cost.SOLUTION: In a joint structure of a concrete column 2 and a steel beam 3, the concrete column 2 includes: a column main body portion 11 comprising RC concrete; a connection portion 12 including a steel pipe assembly 20 disposed at an outer peripheral portion and concrete 6 filled inside. The steel pipe assembly 20 includes: a lower diaphragm 21 and an upper diaphragm 22 horizontally extending respectively at a height of a lower flange 8 and an upper flange 9 of the steel beam 3; a connection portion main body portion 23 comprising a steel pipe connected with to an upper face of the lower diaphragm 21 and a lower face of the upper diaphragm 22; and a lower side extension portion 24 comprising a steel pipe downwardly extending from a lower face of the lower diaphragm 21. Height dimension H2 of the lower side extension portion 24 is larger than a beam height H1 of the steel beam.SELECTED DRAWING: Figure 1 【課題】施工性がよく、十分な地震耐力を確保でき、且つ製造及び施工のコストを低減できるコンクリート柱と鉄骨梁との接合構造を提供する。【解決手段】コンクリート柱２と鉄骨梁３との接合構造において、コンクリート柱２は、ＲＣコンクリートからなる柱本体部１１と、外周部に配置された鋼管アセンブリ２０及びその内部に充填されたコンクリート６を有する仕口部１２とを含む。鋼管アセンブリ２０は、鉄骨梁３の下フランジ８及び上フランジ９の高さにてそれぞれ水平に延在する下ダイアフラム２１及び上ダイアフラム２２と、下ダイアフラム２１の上面及び上ダイアフラム２２の下面に接合された鋼管からなる仕口本体部２３と、下ダイアフラム２１の下面から下方へ延出する鋼管からなる下側延出部２４とを有し、下側延出部２４の高さ寸法Ｈ２が鉄骨梁の梁成Ｈ１よりも大きい。【選択図】図１