构件焊接连接组装的允许偏差 表1.3-10 项 目 对口错边() 允许偏差(mm) b 图 例 b b /10且≤3.0 a ? a ? 间隙(a) ±1.0 a ? 搭接长度(a) ±5.0 a ? ? 缝隙() 5 ? 高度(h) ±2.0 h 垂直度() b/100且≤2.0 b e 中心偏差(e) ±2.0 型钢错位 连接处 0 ? 其它处 2.0 ? 箱形截面高度(h) ±2.0 h b ? ? 宽度(b) ±2.0 垂直度(
) b/100且≤3.0 b Tolerance of Member Welded Connection Table 1.3-10
Item 对口错边() Tolerance(mm) /10 and ≤3.0 a ? a b Legend b b Clearance(a) ±1.0 a ? ? Length of lap over(a) ±5.0 a ? ? Gaping() 5 ±2.0 ? Height(h) h Verticality() b/100 and ≤2.0 b e Central deviation(e) ±2.0 Profile Misplacement Joint Point 0 ? Others 2.0 ? Height of box type cross section (h) Width(b) ±2.0 h b ? ? ±2.0 Verticality( ) b/100 and ≤3.0 b (7) H型钢柱 H-shape steel column
a 制作流程见图1.3-2,制作示意图见图1.3-3,制作示意图见图1.3-4。
Please see the fabrication follow table 1.3-2 and schematic diagram of fabrication 1.3-3.
车间大样图 放样、号料 制孔、切割、坡口加工 接合板切割 制 孔 接合板组对
Finished product Figure1.3-2
Shop detail drawing Lofting and material drafting Making hole, cutting, machining groove Cutting splice plate Making hole Welding Assembling splice plate Appearance shaping Fabrication flow table of H-shape steel column
图1.3-3 H型钢立柱制作示意图
b 连接板、加强筋板与H型钢立柱组焊时应符合下列要求:
The following requirements should be met when assembling and welding gusset plate,
Figure 1.3-4 Sketch of H-shape steel beam fabrication
Figure 1.3-3 sketch of H-shape steel column fabrication
stiffener and steel beam:
——检查连接板的定位尺寸,标高允许偏差为±2mm,位置偏移允差为2mm; Check poisoning dimensions of gusset plates, the allowable deviation of displacement is 2mm.
——组对时,应使用定位胎、卡具。焊接时,应设置防变形板。
Apply poisoning and clamp apparatus when assembling and welding. Set up anti-deforming plates when welding.
——梁加工后的长度应比设计值小1mm,以利于现场安装。
The length of fabricated beam should be less 1mm than designed value so as to be easy to install on site.
c 柱底板与立柱组焊时符合下列要求:
The following requirement should be met when base plate is welded with column: ——柱底板中心线对立柱中心线偏移允差为2mm;
The allowable deviation of the centerline of base plate is 2mm in relation to the centerline of column.
——柱脚螺栓孔中心线对立柱轴线偏移距离允差为3mm;
The allowable deviation of centerline of hole of anchor bolts is 3mm in relation to the centerline of column.
——柱底板平整度允许偏差为1mm/m。 The tolerance of flatness of base plate is 1mm/m.
d 与梁的螺栓连接面,进行喷丸除锈,保证连接面的摩擦系数不小于0.45。并采取保护措施,粘贴胶带,防止二次锈蚀,但不得涂抹影响摩擦系数的油漆、油脂等。
Carry out shot blasting to connected surface of bolt with beam and ensure frication factor is not less than 0.45. Perform protection measures such as sticking the adhesive tape to prevent from rusting again. But applying paints and oil & grease that will affect the frication factor are not permitted.
(8) 焊接 Welding
结构预制焊接采用手工电弧焊和二氧化碳气体保护焊工艺方法。
Manual electric arc welding and CO2 gas shielded welding will be adopted. Process parameters of welding are shown in the table 5.9
a 焊前准备 Preparation before welding ——焊前编制焊接工艺规程,并经评定合格。