A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
BEAM END JOINT PORTION
To provide a beam end joint portion that can avoid early rupture of the beam end joint portion by preventing a lower flange of a beam with an H-shaped cross section from breaking by suppressing occurrence of cracks on a scallop bottom.SOLUTION: A scallop 60 has a first opening end 60a, a second opening end 60b, a first opening edge 61 and a second opening edge 62, and a third opening edge 63. The first opening edge 61 is formed into a circular arc shape intersecting a toe of a connection portion 30 on a web 10 side and has a first circular arc portion 71 whose tangent is in parallel with an internal surface of a lower flange 20 at an end on the first opening end 60a. The third opening edge 63 has a second circular arc portion 72 that is formed into a circular arc shape connecting the first opening edge 61 and the second opening edge 62. A curvature radius of the first circular arc portion 71 is greater than the curvature radius of the second circular arc portion 72. Stress transfer efficiency αof a beam web joint part 120 that is a joint part between a web 10 of a beam end of a beam with an H-shaped cross section 1 and a column 110 is 0.48 or more.SELECTED DRAWING: Figure 4
【課題】スカラップ底へのき裂の発生を抑制して、Ｈ形断面梁の下フランジの破断を防止することで、梁端接合部の早期破断を回避できる梁端接合部を提供する。【解決手段】スカラップ６０は、第一の開口端６０ａと、第二の開口端６０ｂと、第一の開口縁部６１と、第二の開口縁部６２と、第三の開口縁部６３とを有し、第一の開口縁部６１は連結部３０のウェブ１０側止端部と交差する円弧状に形成され、第一の開口端６０ａ側一端で接線が下フランジ２０の内面と平行となる第一の円弧部７１を有し、第三の開口縁部６３は、第一の開口縁部６１と第二の開口縁部６２とを接続する円弧状に形成された第二の円弧部７２を有し、第一の円弧部７１の曲率半径が第二の円弧部７２の曲率半径より大きく、Ｈ形断面梁１の梁端のウェブ１０と柱１１０との接合部である梁ウェブ接合部１２０の応力伝達効率αｗが０．４８以上である。【選択図】図４
BEAM END JOINT PORTION
To provide a beam end joint portion that can avoid early rupture of the beam end joint portion by preventing a lower flange of a beam with an H-shaped cross section from breaking by suppressing occurrence of cracks on a scallop bottom.SOLUTION: A scallop 60 has a first opening end 60a, a second opening end 60b, a first opening edge 61 and a second opening edge 62, and a third opening edge 63. The first opening edge 61 is formed into a circular arc shape intersecting a toe of a connection portion 30 on a web 10 side and has a first circular arc portion 71 whose tangent is in parallel with an internal surface of a lower flange 20 at an end on the first opening end 60a. The third opening edge 63 has a second circular arc portion 72 that is formed into a circular arc shape connecting the first opening edge 61 and the second opening edge 62. A curvature radius of the first circular arc portion 71 is greater than the curvature radius of the second circular arc portion 72. Stress transfer efficiency αof a beam web joint part 120 that is a joint part between a web 10 of a beam end of a beam with an H-shaped cross section 1 and a column 110 is 0.48 or more.SELECTED DRAWING: Figure 4
【課題】スカラップ底へのき裂の発生を抑制して、Ｈ形断面梁の下フランジの破断を防止することで、梁端接合部の早期破断を回避できる梁端接合部を提供する。【解決手段】スカラップ６０は、第一の開口端６０ａと、第二の開口端６０ｂと、第一の開口縁部６１と、第二の開口縁部６２と、第三の開口縁部６３とを有し、第一の開口縁部６１は連結部３０のウェブ１０側止端部と交差する円弧状に形成され、第一の開口端６０ａ側一端で接線が下フランジ２０の内面と平行となる第一の円弧部７１を有し、第三の開口縁部６３は、第一の開口縁部６１と第二の開口縁部６２とを接続する円弧状に形成された第二の円弧部７２を有し、第一の円弧部７１の曲率半径が第二の円弧部７２の曲率半径より大きく、Ｈ形断面梁１の梁端のウェブ１０と柱１１０との接合部である梁ウェブ接合部１２０の応力伝達効率αｗが０．４８以上である。【選択図】図４
BEAM END JOINT PORTION
梁端接合部
NIKAIDO MASATO (author) / KITAOKA SATOSHI (author) / HIRAYAMA HIROMI (author) / ITO HIROSHI (author) / KAGAMI YASUO (author) / ANDO KENSUKE (author) / ITAYA TOSHIOMI (author)
2020-08-31
Patent
Electronic Resource
Japanese
IPC:
E04B
Allgemeine Baukonstruktionen
,
GENERAL BUILDING CONSTRUCTIONS
JOINT STRUCTURE AND CONSTRUCTION METHOD OF BEAM END JOINT PORTION
| European Patent Office | 2024
| European Patent Office | 2024
European Patent Office | 2017