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1ͼֽͼֽҪֽṹʩͼƽע00G101
2йй淶GB502042002
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1Ϊ35
2Ϊ25Ϊ25ҲСݽֱ
3¥塢¥ݵ100ʱΪ10100ʱΪ15
4ǽǽ150ʱΪ15ǽ150ʱΪ20
5ӦòӦǿȵȼػϵȡ
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1ֽùҹ淶涨ΧڵI[]:fy=210N/MM2 , II[]:fy=310N/MM2
3ͨӽͷʱ߾Ӧ淶Ҫ˵IֽE43ͺIIֽE50ͺӦϡBJG-18-65֮Ҫ
4ͬһڵĶֽʱӸֽͬһڲóֽ50%ǽ25%Ӵļ಻45d
5ֳֽʱԭ򲢾Աͬ⡣
1ǿȴ
2ֽ֮ľ淶Ҫ
3øǿȸֽǿȸֽʱǿҪ⣬Ӧֽٸ֮Ҫ
6ֽСê̳LaEʹӳLdE
ע1Ƹֱֽd25mmʱê̳5d,Ƹֱֽd25mmʱê̳ȼ5d
2Iֽêʱĩ˼乳
3ֽê̳ȲӦС250mm,ӳȲӦС300mm
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3Ǹݺصó״
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5ǽʱӦλ踽Ӹֽͼע߳⣩L1500ʱΪ214  1500L2500ʱΪ216  L2500ʱΪ218
6׽êҲ5d,êڼǽڳLa
7Ԥ׶׶ߴd (򣩲300ʱжƿ׶׶ߴd(򣩴300ʱǿͼʮ֮Ԥ׽ṹͼбʾλüСˮյйרҵͼֽҪ
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ԡֱϡװ
塢׼
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1ֽƷ֡ʱӦƱļ
2ڽ֮ǰӦиֽιգݰ
1ֽƷ֡λõȣ
2ֽӷʽͷλáͷͷٷʵȣ
3ֽƷ֡ȣ
4ԤĹλõȡ
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1ֽʱӦйұ׼ֽֽGB1499ȵĹ涨ȡԼѧܼ飬йر׼Ĺ涨
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1ֽ乳Ӧй涨
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2Ҫֽĩ135乳ʱHRB335HRB400ֽ仡ֱӦСڸֱֽ4乳ƽֱֳӦҪ
3ֽ90ʱ۴仡ֱӦСڸֱֽ5
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2乳۽ǶȣһṹӦС90㣻пҪĽṹӦΪ135㣻
3ƽֱֳȣһṹСڹֱ5пҪĽṹӦСڹֱ10
3ֱֽ˲ûеҲɲֱֽʱHPB235ֽʲ˴4%  HRB335HRB400RRB400ֽʲ˴1%
4ֽӹ״ߴӦҪƫӦϱĹ涨
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3ȷбҪͷٷʱ๹Ӧ50%ɸʵſ
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4ֱֽ25mmʱӦڴӽͷ100mmΧڸΪ50mm
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1ֽװʱֽƷ֡𡢹Ҫ
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עżԤλʱӦݡ⣬ȡеĽϴֵ
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bֽϳ=ֱγ+б䳤-ֵ+乳ӳ
cϳ=ܳ+ֵ+乳ӳ
ݸֽӲձںӹйع涨
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1
1ֽİиֽӦÿΣм䲿ֽΣ뱣ֽ֤λ˫ĸֽ轫ȫֽཻΡʱӦעڰ˿ҪɰΣƬбΡ
2װ˫ֽʱϲֽӦøֽŽŻŽţԱֽ֤λȷ
ֽŽŵʽߴ磬ÿ1mһֱѡãh30cmʱΪ8~10mmh=30~50cmʱΪ12~14mmh50cmʱΪ16~18mm
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4Ϊ˫̱ߵĸֽӦڳ߸ֽ档
5ֽõĲ乿ӦĹСһֱԱӡλһҪ̶οƫơ
2
1еֽʱǲֽ乳Ӧ45㣨ΪڽǵƽֽǣԲӦߴֱмֽ乳Ӧ90㡣òʽСͽʱ乳ĽǶȲС15㡣
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4塢洦ĸֽϣĸֽУĸֽ£Ȧʱĸֽϡ
5ܽڵ㴦ֽʮֳʱӦرעľҪ30mm
6ֽİģ尲װ֮Ϲϵĸ߶ȽСʱĸֽܿϰȻλĸ߶Ƚϴ󣨡1.2m ʱĸֽģϰģһģװ
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