A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
BRACE TOP END CONNECTION FITTINGS, BRACE BOTTOM END CONNECTION FITTINGS, AND CEILING SUBSTRATE STRUCTURE
PROBLEM TO BE SOLVED: To easily perform a strength design of a ceiling substrate structure while suppressing the deformation of an indoor ceiling by an earthquake.SOLUTION: A ceiling substrate structure 1 comprises: a plurality of ceiling joists 2 to which ceiling members C are attached; a plurality of ceiling joist holders 3 disposed on the opposite side of the ceiling members C of the ceiling joists 2 and extending in a direction orthogonal to the ceiling joists 2; a plurality of hanger bolts 5 for hanging the ceiling joist holders 3; and a brace 6 arranged obliquely. A brace upper end connection fitting 7 for fixing an upper end portion of the brace 6 to the hanger bolt 5 comprises: a hanger bolt fixing portion 71 fixed to the hanger bolt 5; a brace fixing portion 72 to which the upper end portion of the brace 6 is fixed; and a fragile portion 73 positioned between the hanger bolt fixing portion 71 and the brace fixing portion 72 to separate the hanger bolt fixing portion 71 from the brace fixing portion 72. The stiffness of the fragile portion 73 is lower than the stiffness of the hanger bolt fixing portion 71 and the stiffness of the brace fixing portion 72.SELECTED DRAWING: Figure 4
【課題】地震による室内天井の変形を抑制しつつ天井下地構造の強度設計を容易に行うことができる。【解決手段】天井下地構造１は、天井材Ｃが取り付けられる複数の野縁２と、野縁２の天井材Ｃとは反対側に配置されて野縁２と直交する方向に延びる複数の野縁受け３と、野縁受け３を吊り下げる複数の吊ボルト５と、斜めに配置されるブレース６と、を備える。ブレース６の上端部を吊ボルト５に固定するブレース上端接続金具７は、吊ボルト５に固定される吊ボルト固定部７１と、ブレース６の上端部が固定されるブレース固定部７２と、吊ボルト固定部７１とブレース固定部７２との間に位置して吊ボルト固定部７１とブレース固定部７２とを区切る脆弱部７３と、を備える。脆弱部７３の剛性は、吊ボルト固定部７１の剛性及びブレース固定部７２の剛性よりも低い。【選択図】図４
BRACE TOP END CONNECTION FITTINGS, BRACE BOTTOM END CONNECTION FITTINGS, AND CEILING SUBSTRATE STRUCTURE
PROBLEM TO BE SOLVED: To easily perform a strength design of a ceiling substrate structure while suppressing the deformation of an indoor ceiling by an earthquake.SOLUTION: A ceiling substrate structure 1 comprises: a plurality of ceiling joists 2 to which ceiling members C are attached; a plurality of ceiling joist holders 3 disposed on the opposite side of the ceiling members C of the ceiling joists 2 and extending in a direction orthogonal to the ceiling joists 2; a plurality of hanger bolts 5 for hanging the ceiling joist holders 3; and a brace 6 arranged obliquely. A brace upper end connection fitting 7 for fixing an upper end portion of the brace 6 to the hanger bolt 5 comprises: a hanger bolt fixing portion 71 fixed to the hanger bolt 5; a brace fixing portion 72 to which the upper end portion of the brace 6 is fixed; and a fragile portion 73 positioned between the hanger bolt fixing portion 71 and the brace fixing portion 72 to separate the hanger bolt fixing portion 71 from the brace fixing portion 72. The stiffness of the fragile portion 73 is lower than the stiffness of the hanger bolt fixing portion 71 and the stiffness of the brace fixing portion 72.SELECTED DRAWING: Figure 4
【課題】地震による室内天井の変形を抑制しつつ天井下地構造の強度設計を容易に行うことができる。【解決手段】天井下地構造１は、天井材Ｃが取り付けられる複数の野縁２と、野縁２の天井材Ｃとは反対側に配置されて野縁２と直交する方向に延びる複数の野縁受け３と、野縁受け３を吊り下げる複数の吊ボルト５と、斜めに配置されるブレース６と、を備える。ブレース６の上端部を吊ボルト５に固定するブレース上端接続金具７は、吊ボルト５に固定される吊ボルト固定部７１と、ブレース６の上端部が固定されるブレース固定部７２と、吊ボルト固定部７１とブレース固定部７２との間に位置して吊ボルト固定部７１とブレース固定部７２とを区切る脆弱部７３と、を備える。脆弱部７３の剛性は、吊ボルト固定部７１の剛性及びブレース固定部７２の剛性よりも低い。【選択図】図４
BRACE TOP END CONNECTION FITTINGS, BRACE BOTTOM END CONNECTION FITTINGS, AND CEILING SUBSTRATE STRUCTURE
ブレース上端接続金具、ブレース下端接続金具、及び天井下地構造
YOSHIKAWA NOBORU (author) / MIGITA YUICHI (author) / IWASHITA YUKI (author)
2018-07-26
Patent
Electronic Resource
Japanese
IPC:
E04B
Allgemeine Baukonstruktionen
,
GENERAL BUILDING CONSTRUCTIONS
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