1.Y
1(jin)֧ͬr(sh)оdͼкdӛ֧̎ır75%Ӌ㿹dr(sh)ܕ(hu )úǂ(g)ʽ
2ӋӋӰϵr(sh)ҪYIJǻϽY߀䓽YȲͬõĹʽҲͬ
3ӋÃӋӋɻ
4SСƫ䓽OӋֵ300MPa
5ŤһŤŤdϵƗlעȡֵ
6{ϵ@(g)һæ
7dMϕr(sh)dYijdr(sh)ϵȡ1.0dYijdr(sh)ϵȡ0
8Ӌwe乿ʕr(sh)C35C35Ӌ
9}ĿoOӋֵ߀˜ֵ
10ӋF䓽S܉ƫ܉r(sh)L(chng)߅ֱС300mmtлďOӋֵϵ0.8|(zh)S(xin)ߴȣ_бCr(sh)ɲܴ
11Ę䓽ÿȿv䓽²䓽䓽ĽeСڸebhw0.1%g˴200mmעÿȵe
12Sdr(sh)3ϕr(sh)Ac۳䓽e
13ܵȽYʩzd
14]_܇(ch)ˮƽdr(sh)οS(chng)ÿ(g)żcMϵĵ܇(ch)_2_
15Ӌω0r(sh)ֲڶB(li)^ֱӴL(fng)A(li)C(li)D(li)^صĻL(fng)քe1.380.620.32
16ֱӳܵ܇(ch)ĽYӋdƣѕr(sh)]܇(ch)dĄ(dng)ϵ
17Ӌұۘē϶ֵr(sh)ӋȰ(sh)HұL(chng)ȵ2ȡ
18wΌӷż¶܇(ch)͗ӋL(chng)е܇(ch)żżܷӋL(chng)HmHu/Hl≥0.3rHu/Hl<0.3r(sh)ӋL(chng)˲2.5Hu
19ĸ߶ȣνȡЧ߶TνȡЧ߶Ȝpȥ߶IνȡTͽʕr(sh)Իܶ
20䓽^L(chng)ȵȼC40r(sh)C40ȡֵϵ
2.䓽Y
1ֱӳ܄(dng)dĽY܇(ch)㏊Ⱥͷr(sh)](dng)ϵ
2Ӌ㘋L(chng)ȕr(sh)Ҫע⸹ijƽ߀Ǵֱƽ
3ȵۜpϵڏlr(sh)r(sh)ӛ
4бƽĸUӋL(chng)ϵ0.90.8
5pL(chng)Ӌr(sh)ӛσɱĺ_ߴe߀ҪעǷM(mn)㘋Ҫ
6L(chng)ۜp˨BL(chng)ȳ^(gu)15d060d0r(sh)ӛóۜpϵ
7䓽YS܉ķϵڲr(sh)ע̖ȵfyҪֱӾ͎235M(jn)ȥ
3.wY
1sgࣩӋ߶ȵxȡҪeС׳e
2ĿAкdֻ]dҪֵؘҪѻdҲM(jn)ȥ
3ע⏊ȵ{ϵwe<0.3w<0.2
4wֲϵγ״uwKwγ≤1.5δKwγ≤1.0
5XpͨpƉҪ
6wL(chng)cL(chng)֮˴1.2ϟo(w)wr(sh)˴2
7W(wng)uwеweС0.1%1%
4.ߌcY
1SֵxȡһҪС֣ע?zhun)׳e
2ӷӋr(sh)ǰ0.9Ҫ0.9.
3ڽYcλӋFbwʽĄȿɿ]ϵɸrȡ1.32.0.gǰ2߅ܳ1.5.
4cMϕr(sh)עL(fng)dǷcM
5ײӋÕr(sh)Y䓽YԵϵͬ0.85ߌ䓽Y0.8Ҏ䓽Y0.85.
6ӋˮƽӰϵr(sh)Ҫ]T15TgP(gun)ϵ
7ҎеĿȼҪ巿A߀B߶Ȼٿ(chng)(li)e֮ҪһһЄeһE
8OӋr(sh)֫Ŀȼһ
9ֿ֧YDQӵλO3Ӽ3ϕr(sh)֧ײӏλĿȼ˰Ҏһѽ(jng)һr(sh)ɲ
10ڿ-YYע⮔퉦L(chng)С3߶߅L(chng)С2r(sh)ҕo(w)퉦o(w)
11һ֧ɵa(chn)Sքeϵ1.51.2.עǵa(chn)S{IJ
5.ػA
(jng)̎ĵػػd_AeҪҎ_ĵػdֵM(jn)r(sh)AȵĵػdϵȡAĵػdϵȡ1.0.(jng)̎ĵػӷԴܛPӕr(sh)БPӵĵػd
6.ľY
1һҪǷԭľԭľĘעС^ֱӋ϶͏вͬҪ
2{ϵH{߀Џģ
1W(wng)ע(li)ԴO̽W(wng)ƷٽO̽W(wng)δ(jng)W(wng)ڙDd朽DNʽʹѽ(jng)W(wng)ڙڙʹұע(li)ԴO̽W(wng)`W(wng)䷨؟
2W(wng)YϞW(wng)ѼDdMߺͳ̎ڱW(wng)dƷ漰Ȇ(wn)}ՈcW(wng)վ(lin)ϵW(wng)վˌ(sh)_J(hu )M̎
W(wng)Dd֮Ʒζ(zh)JͬԓƷ^(gun)c(din)挍(sh)ýwW(wng)վ(g)DdʹՈc(zh)(lin)ϵؓ؟
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