﻿ Calculation of Basic impedance level for calculation of heavy weight floor-impact sound level：Homogeneous-single panel-void slab with rectangle hollow air space

# Calculation of Basic impedance level for calculation of heavy weight floor-impact sound level：Homogeneous-single panel-void slab with rectangle hollow air space

 1 Density of member：ρ kg/m^3 - 2 Thickness of floor slab：h1 m - 3 Thickness of floor slab：h2 m - 4 Thickness of floor slab：h3 m - 5 Breadth of void：b1 m - 6 Breadth of void：b2 m - 7 Breadth of void：b3 m - 8 Young's modules of member：E *10^10 N/m^2 - 9 Graph x-axis：h1(m),y-axis：Lzb(dB) x-axis：h2(m),y-axis：Lzb(dB) x-axis：h3(m),y-axis：Lzb(dB) Plot Input Data： YesNo , Figure： OnOff
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## Keyword

Basic impedance level for calculation of heavy weight floor-impact sound level,Homogeneous- single panel-void slab with rectangle hollow air space,Bending Rigidity,Equivalent thickness of floor slab, impedance calculation,Density of member,Thickness of floor slab,Young's modules of member,Second moment of area

## Reference

[1]：日本建築学会：『建物の床衝撃音防止設計』,技報堂,pp.11-39,2009.

## Remarks

・Basic impedance level(dB)：Lzb
・Basic impedance(kg/s)：Zb
・Equivalent thickness of floor slab(m)：h
・Density of member(kg/m^3)：ρ
・Thickness of floor slab(m)：h1,h2,h3
・Young's modules of member(N/m^2)：E
・Second moment of area(m^4)：I
・Bending Rigidity(Nm^2)：B