型钢拱架焊接作业指导书-(报)

新建杭州至黄铁路站Ⅶ标型钢架焊加工作业指导书编复审

制：核：核：中铁二局黄铁路站前标项目部二〇一五三月

目1.编制目的...........................................................................................................................................2。适用范........................................................................................................................................33。作业准........................................................................................................................................33。1内业技术准备..................................................................................................................33。2外业技术准备..................................................................................................................34.技术要求...........................................................................................................................................5.施工要求...........................................................................................................................................5。1施工准备............................................................................................................................45.2制作模具................................................................................................................................45.3型钢下料加工.......................................................................................................................5.4型钢钢架焊接.......................................................................................................................5。5检查验收............................................................................................................................55.6型钢钢架运输.....................................................................................................................116.质量控制及检............................................................................................................................116.1质量控制..............................................................................................................................6.2质量检验..............................................................................................................................7.安全及环保要............................................................................................................................127。1安全要求..........................................................................................................................127。2环保要求.........................................................................................................................型钢拱架接加工作业导书1.制的

,满2适范IV、V.3作准3.1业术备,阅..3.2业术备原材4技要、级Ⅳb级型。8m～1Ⅴb级型架,钢；

Ⅴc级型及HW175型钢型钢0.8m。钢然后复喷.图4—1型标准截图表型钢标截面尺寸表型

号

尺寸（毫米）6.5。

t

截面面积（厘米）。。

理论重量(公斤/）。HW175

7.5

5施要5施准工在加工场焊缝表面5.2制作模板和钢Φ25可，

5型下加严以部点为节头。5型钢焊以I18工字。43000°C,池同时.常见的缺定;三,

.5.4.2⑴Ⅰ18截mm==39对的截—x轴的截面模—工字d—工字85即通％。85=182。75N/

=182N/=33钢(由I18所以初步10mm厚:图工字钢面图===225:。m:。14KN。m-33

，此）,实的钢最安:10mm宽的计算最、2、3（见图,,以取图5—2加钢板立图

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

：（2=

、2、3、4）点的N/—-焊缝计算宽度0-—x周—y轴—-焊缝、-—焊、2、3、4）—-弯矩取1。4.3并