JP6571307B2 - 床の振動性能評価方法 - Google Patents
床の振動性能評価方法 Download PDFInfo
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- JP6571307B2 JP6571307B2 JP2013099236A JP2013099236A JP6571307B2 JP 6571307 B2 JP6571307 B2 JP 6571307B2 JP 2013099236 A JP2013099236 A JP 2013099236A JP 2013099236 A JP2013099236 A JP 2013099236A JP 6571307 B2 JP6571307 B2 JP 6571307B2
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図1(A)は建物の部屋1の床構造2の一例を概略的に示しており、同図(B)は上記床構造2における累積たわみを表している。上記床構造2では2本の平行に配置された大梁3の間に小梁4が複数本固定されている。また、上記床構造2の中央に荷重が加えられると、上記大梁3および小梁4の両方が変形し、累積たわみT(cm)が生じる。
[式1]
δ1=α×L3/(48EI)
=50kN×4553/(48×2.05×104×1050)
=4.56cm
δ2=(α/2)×L3/(48EI)
=25kN×3643/(48×2.05×104×3080)
=0.40cm
※H250×100×4.5/9.0→I=3090cm4
※H200×100×3.2/4.5→I=1050cm4
[式2]
D=T(cm)×G×A(P2)
[式3]
D=T(cm)×G×A(P2)=4.96×1.2×20=119.0
2 床構造
3 大梁
4 小梁
Claims (4)
- 鋼製根太床またはALC床の振動性能評価方法であって、建物の設計段階で知ることができる、建物の部屋の広さと、上記部屋の床構造に所定の鉛直荷重が生じる際の当該床構造のたわみ値とを掛け合わせて得られる床たわみ係数を用いて、設計上の建物の床の振動性能を評価できることを特徴とする床の振動性能評価方法。
- 請求項1に記載の床の振動性能評価方法において、上記床たわみ係数を建物の床構造の固定荷重で決まる倍率で補正することを特徴とする床の振動性能評価方法。
- 請求項1または請求項2に記載の床の振動性能評価方法において、上記床たわみ係数の所定の値を境に異なる振動性能評価をすることを特徴とする床の振動性能評価方法。
- 請求項1〜請求項3のいずれか1項に記載の床の振動性能評価方法において、実際の建物について行った床振動試験のデータに基づく評価ランクと実際の建物について求めた床たわみ係数との関係に基づいて基準ラインを設定し、この基準ラインとの対比で設計上の建物の床の振動性能を評価することを特徴とする床の振動性能評価方法。
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JP6571307B2 true JP6571307B2 (ja) | 2019-09-04 |
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Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
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JP3852873B2 (ja) * | 1997-03-28 | 2006-12-06 | 株式会社フジタ | 床振動解析方法および装置 |
JP5155047B2 (ja) * | 2007-07-18 | 2013-02-27 | 旭化成ホームズ株式会社 | 建物の鉛直振動予測方法 |
JP2010047953A (ja) * | 2008-08-21 | 2010-03-04 | Sumitomo Metal Ind Ltd | 防振床構造 |
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