型鋼拱架焊接作業(yè)指導(dǎo)書-(報(bào))

新建杭州至黃鐵路站Ⅶ標(biāo)型鋼架焊加工作業(yè)指導(dǎo)書編復(fù)審

制：核：核：中鐵二局黃鐵路站前標(biāo)項(xiàng)目部二〇一五三月

目1.編制目的...........................................................................................................................................2。適用范........................................................................................................................................33。作業(yè)準(zhǔn)........................................................................................................................................33。1內(nèi)業(yè)技術(shù)準(zhǔn)備..................................................................................................................33。2外業(yè)技術(shù)準(zhǔn)備..................................................................................................................34.技術(shù)要求...........................................................................................................................................5.施工要求...........................................................................................................................................5。1施工準(zhǔn)備............................................................................................................................45.2制作模具................................................................................................................................45.3型鋼下料加工.......................................................................................................................5.4型鋼鋼架焊接.......................................................................................................................5。5檢查驗(yàn)收............................................................................................................................55.6型鋼鋼架運(yùn)輸.....................................................................................................................116.質(zhì)量控制及檢............................................................................................................................116.1質(zhì)量控制..............................................................................................................................6.2質(zhì)量檢驗(yàn)..............................................................................................................................7.安全及環(huán)保要............................................................................................................................127。1安全要求..........................................................................................................................127。2環(huán)保要求.........................................................................................................................型鋼拱架接加工作業(yè)導(dǎo)書1.制的

,滿2適范IV、V.3作準(zhǔn)3.1業(yè)術(shù)備,閱..3.2業(yè)術(shù)備原材4技要、級(jí)Ⅳb級(jí)型。8m～1Ⅴb級(jí)型架,鋼；

Ⅴc級(jí)型及HW175型鋼型鋼0.8m。鋼然后復(fù)噴.圖4—1型標(biāo)準(zhǔn)截圖表型鋼標(biāo)截面尺寸表型

號(hào)

尺寸（毫米）6.5。

t

截面面積（厘米）。。

理論重量(公斤/）。HW175

7.5

5施要5施準(zhǔn)工在加工場(chǎng)焊縫表面5.2制作模板和鋼Φ25可，

5型下加嚴(yán)以部點(diǎn)為節(jié)頭。5型鋼焊以I18工字。43000°C,池同時(shí).常見的缺定;三,

.5.4.2⑴Ⅰ18截mm==39對(duì)的截—x軸的截面?！ぷ謉—工字85即通％。85=182。75N/

=182N/=33鋼(由I18所以初步10mm厚:圖工字鋼面圖===225:。m:。14KN。m-33

，此）,實(shí)的鋼最安:10mm寬的計(jì)算最、2、3（見圖,,以取圖5—2加鋼板立圖

=I146（實(shí)。mt=10mm39.775KN19，E42焊8mm.。78（2130+2130置:

：（2=

、2、3、4）點(diǎn)的N/—-焊縫計(jì)算寬度0-—x周—y軸—-焊縫、-—焊、2、3、4）—-彎矩取1。4.3并