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?????????é???o??????????300???é????|180??????AB??????è???o?180????????|é???o?280?????±????o????

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è????·??????????o???±?????·?????????=??|????o??????o???????13??1?±3??·??????/m2??????o???±??????é???§????m2???

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1?????|????o?????????????

1?????|???????????????è?'?????1è?2????????§GBT66544a??1999è§?è??è§???????UV?????|????????¤?????oA C B???E???????§????

A????????????é????o405-5mm???300mmé???o|??????????????°??o32-36??a???

C????????????é????o3.5-4mm,300mmé???o|??????????????°36-40??a???

B????????????é????o2.5-3mm,300mmé???o|??????????????°48-52??a???

E????????????é????o1.1-2mm, 300mmé???o|??????????????°92-100??a????o???±?????·?o???±????????·??o?????????

A???????????|???é??è???????????????¤§???????1??§°???A??????????o???±???????13é???????????è?????B???C???????·?????????????????????'?????????è??è??é??????????????è??é??????o????é?????è?????è???????????????o???±???è????¨??1??????é?????C???????o???±??????é???????????é???o|???????????°??????????????????è?????????o?A???B???????1?é?'??????????????????????1??§°???é????¨?o????è??é??????????????B???????????|??????è???????????è???????'?????????è??è???·????????13é??è????????è??è??é???????????B???????o?é????¨?o????è?????è???±????

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1???é??????o???±???è'-è?????é???o????é???o????è???o??????|???????o?????????¨??·???????????3????§?é???o????é???o????è???o??????|???????o???o?????¨?¤??°????????????????è?¨?????oa?????/??¨a?????è?????????????????è|???????a?????/?????¤a??????|?è????·??o5200?????¨??????????????¤?????3??o5200???/1000kg=5.20???kg??????é??????o??????????é??é?????è?2???é????????è·?????o???o????13??1?±3?¤??°????é????3????§?é???o????é???o????è???o??????|???????o????é????????a?????/m2a????o???è?¨???????????o????????????è|????????|?è'-è??300?????????????o??????????300/gm2??????????o?????-¤????°?a??300???/m2a???????????(300/1000)kgm2a???????????0.3kg/m2???

3?????|???????o????é????|????o?????3???°?????-????????|???????o?????????|?????????è?'?o????é???o|??1??????????????-????????-???????§°??o??????????3???°????-¤é?1?3???°??????é??????????????è§?è?????????????±??¨?o???????é??????????o?o§???è????????????°'?13?????1?????'?????±?????|????o????????????1????????????è?????é?????é??è???|?????3???°???

A????????????????3???°??o1.59?????31.59?±3?????|????o??????|????????o1?±3é?????

B????????????????3???°??o1.36?????31.36?±3?????|????o??????|????????o1?±3é?????

C????????????????3???°??o1.50?????31.50?±3?????|????o??????|????????o1?±3é?????

E????????????????3???°??o1.27?????31.27?±3?????|????o??????|????????o1?±3é?????

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??????è????·1800?????¨???é????o??|??o180???/m2??????????13??1?±3??·?o???o???  ???1800/1000???X(180/1000???X1.59 =1.8X0.18X1.59 =0.516??????/?13??1?±3???

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é???o??????????   300??????5200???/??¨???   1       1             ???300/1000???X(5200/1000???X1X1   =1.56

é????o??|?o?      180??????2250???/??¨???   2   (1.56+1.39)   (180/1000)X(2250/1000???X2X2.95  =2.39

è???o?            180?????? 1700???/??¨???  1       1             ???180/1000???X(1700/1000???X1X1   =0.306

é???o?è??????o?   280??????2500??? /??¨???  1       1             ???280/1000???X(2500/1000???X1X1   =0.70  ??????(???????13??1?±3) =4.96

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