mСˮˮԴɢõѭh(hun)sˮϵy(tng)ʹʮ`
f
1(bio)(zhn)O(sh)Ӌrض31.5ض28≺99400PaM(jn)ˮض42棬ˮض32
2ӯBʽЧAϵxʹԓs_(d)Y(ji)(gu)oռeС`O(sh)ӋĿ
3ÙC(j)ͿոY(ji)(gu)ֱeD(zhun)١̈́ӉL(fng)C(j)~Ƭʹԓsй(ji)ܡ@c
4sM(jn)L(fng)ڼ^(q)O(sh)øЧbʹͬesЧ_(d)5dB(A)
5ߏ(qing)FRPY(ji)(gu)ԓsϵđ(yng)ʹз܃(yu)ʹÉL@(yu)c
6СsD(zhun)ʽˮϵy(tng)Y(ji)(gu)ΡˮM(jn)һssù̶ˮϵy(tng)M(jn)һwķ(wn)
7D(zhun)ʽˮϵy(tng)O(sh)Óˮbã̶ʽˮϵy(tng)O(sh)ˮbʹshˮpʧ0.01%ԃ(ni)
8AY(ji)(gu)xõĿL(fng)emغ_L(fng)^(q)ʹԓsO(sh)ӋL(fng)_(d)0.75KN/m2
9weСpY(ji)(gu)bSo(h)O麆ݷ
DBNL3ϵеsҪ(sh)
f
1(bio)(zhn)cDmyֱֵh(yun)A(ch)1.5ߣ(dng)С1.5וrȡ Dm=1.5ף
2ϵИ(bio)(zhn)O(sh)ӋrضT=28M(jn)ˮضt1=37,ˮضt2=32ˮؽt=5ƽt2-T=4
3гT=28rt=5漰8,t2=32T=27t=5漰8t2=32sˮxÕr(sh)sˮՈ
4M(jn)ˮָӹc̎ˮ1Kgf/cm2=9.8×104Pa˱ϵˮ0.20.49Kgf/cm2֮g
GBNL3ϵйI(y)sҪ(sh)
f 1ʹX݆pr(bio)(zhn)c<72dB(A)ʹÄpr(bio)(zhn)cֵcֱsͬ 2гĝضT=28漰T=27sˮ乤r£(dng)ˮؽt=10rM(jn)ˮضt=43ˮضt2=33(dng)ˮؽt=20漰25rM(jn)ˮضt1քe6055ˮضt2=35档 3M(jn)ˮָӹc̎ˮ1Kgf/cm2=9.8×104Paϵˮ0.30.5Kgf/cm2֮g