?????????????????, ???????????????????

????????????????,???????????,?????????????

??????????:????,????:????,??,????:????,????:??,???

??:?????300???180?(AB?)??180?????280?????

????

????:????(?)=???????????(?/m2)×??????(m2)

????????????????

1????????

1)??????????:??GBT66544-1999????,UV???????A C B?E????

A??????405-5mm,300mm????????32-36?;

C??????3.5-4mm,300mm???????36-40?;

B??????2.5-3mm,300mm???????48-52?;

E??????1.1-2mm, 300mm???????92-100???????????????

A????????,????????A??????????????B?C???,???????????????,????????????????,???????C????????????????,??????,??A?B????,????????,??????????B????????,??????????,?????????,??B????????????

??

??E????????????,???????E???????????????????????????,?????????A?C?B??????????,????????????????,?????????????????????????????,??????????????????????????

2)???????

??????????????????????????????????????????????????,??????????????????????????????????????????????????????????????;?????????????,?????????????????????????????????????????,?????????AB?(?????????????)?AC??BC??AE??BE??????????????????????(???????????,?????);??:????????????????????????????????????????BAB??BAA??CAC??BAC?.

2??????????

1)??????????????????????????????????????????????????,??????"?/?",?????????"?/??"?????5200??,???????5200?/1000kg=5.20?kg?)????????????,?????????????????????????????????"?/m2"?????,???????????300?????,??300/gm2????,???"300?/m2"???(300/1000)kgm2",??0.3kg/m2?

3)???????????????,???????????????????????????????????????????????,??????????????????????????????????,????????????;

A????????1.59,?1.59??????????1???

B????????1.36,?1.36??????????1???

C????????1.50,?1.50??????????1???

E????????1.27,?1.27??????????1???

3??????????????????

(1)???????????

?:??4800???????350?/m2,???????;  (4800/1000)X(350/1000) =4.8X0.35 =1.68(?/???)

(2)??????

?:??1800???????180?/m2,????????:  (1800/1000)X(180/1000)X1.59 =1.8X0.18X1.59 =0.516(?/???)

4?????????????????

?????????????,??????????300???180?(AB?)??180?????280????,????????????

?????????????,??????????300???180?(AB?)??180?????280????,????????????????

????:

??            ??     ??(?/?)   ??   ??           ???                (?/????)

?????   300??5200?/?,   1       1             (300/1000)X(5200/1000)X1X1   =1.56

????      180??2250?/?,   2   (1.56+1.39)   (180/1000)X(2250/1000)X2X2.95  =2.39

??            180?? 1700?/?,  1       1             (180/1000)X(1700/1000)X1X1   =0.306

?????   280??2500? /?,  1       1             (280/1000)X(2500/1000)X1X1   =0.70  ??(?????) =4.96

????????????? 5??????????????????

??????????????????????????????????????(????????????)??????????????,

????????????????0.5~0.7,???????0.5~0.3,??????????????0.65,???????0.35??????????????0.5??????????

6?????????

???????=????????????0.65?????"??(?/????) =4.96"?????????????:???????=4.96/0.65=7.63????

?????????

1)??????????????????????????????????????

2)?????????

???????(?)=(?+?+7)X2X(?+?+2)/10000? ???????(?)=(?+?+8)X2X(?+?+3)/10000?  (?????????????,????,???0201??,?????:??????1,??2,??????0.5,??1,????)??????????=??????????

?????1500???????????????,?????800--1500??????????1.2???,?????400-800????????????1.5???

???????????:???0.25?????????0.5?????????0.025?????,???????????????,??????????????????????

???????????????????????????????????????,??????????????????????????????????

???????

1)?????????????????????????????

2)?????????

??????????????????,?????????960mm?1100mm?1600mm?1940mm,???????????????????????2.2m,???1.6m?

????????:

?1)

??????(????????X?)?????(?+?+0.06m)???(???????y)?y???????????????????????????????????????????????,????????????????????????????,??????????,???????????????????????  ????????? X÷Y=B,?????????????(?+?+0.06)×2+0.04=A,?A?????????,????????B×A=S,?S???????????????????????????(m)  ???0.06??????????????????60mm,0.04???,?????????,????????

??????:

?????????????,?????(500mm×310mm×240mm)??????????300?/??180?(A/B?)/??180???/??280????,??????????????????1.6m.?

(1)?????????:

????:1.6÷(0.24+0.31+0.06)=2

1.6÷2=0.8

????:(0.5+0.31+0.06)×2+0.04=1.78m2  ??????:1.78×0.8=1.42 m2

(2)???????????????:7.63?(????3????)

(3)??????7.63×1.42=10.83?  ?????????????

?????????????,??????,??????1.3m??1.6m??????,???????????,??????????:

(0.31+0.24+0.06)×2=1.22

??????????1.3m???????

???????????1.3÷2=0.65

???????????(0.5+0.31+0.06)×2+0.04=1.78  ?????S=1.78×0.65=1.157  ????????1.157×7.63=8.83?

????????????? ??????????????,??????????????????????????????????

???????????????????????????????????????,??????????????????????????????????    

??????,????????,?A??3A???????????2???,?A?????10mm,3A???15mm??????????????????????????????????,??????????,???????????,??????????,?????,????????????????????????   http://lijiamy888.com/