The steel used for supports and hangers shall be straight without obvious distortion. After blanking, the length deviation shall be within 5mm, and the notch shall be free of curling and burr. The steel support and hanger shall be welded firmly without significant deformation, the weld shall be uniform and flat, the weld length shall meet the requirements, and there shall be no defects such as crack, undercut, air hole, depression, missing welding, missing welding and so on.

支架与吊架应安装牢固，保证横平竖直，在有坡度的建筑物上安装支架与吊架应与建筑物有相同坡度。支架与吊架距离上层楼板不小于150～200mm；距地面高度不低于100～150mm（电缆沟内）。

The supports and hangers shall be firmly installed to ensure horizontal and vertical. The supports and hangers installed on buildings with slope shall have the same slope as the buildings. The distance between the support and hanger and the upper floor slab shall not be less than 150 ~ 200mm; The height from the ground shall not be less than 100 ~ 150mm (in the cable trench).

支架与吊架的规格一般不应小于扁铁30mm×3mm；角钢25mm×25mm×3mm。

Generally, the specifications of supports and hangers shall not be less than 30mm of flat iron × 3mm； Angle steel 25mm × 25mm × 3mm。

严禁用木砖固定支架与吊架。膨胀螺栓固定时，选用螺栓适配，连接紧固，防松零件齐全。严禁用电气焊切割钢结构或轻钢龙骨任何部位，当确需与钢结构焊接固定时，应经过结构设计人同意方可进行切且焊接后应做防腐处理。

It is forbidden to fix the support and hanger with wood bricks. When the expansion bolt is fixed, the bolt shall be used for fitting, the connection shall be fastened, and the anti loose parts shall be complete. It is strictly prohibited to cut any part of steel structure or light steel keel by electric welding. When it is really necessary to weld and fix with steel structure, it shall be cut with the consent of structural designer, and anti-corrosion treatment shall be carried out after welding.

吊具应采用定型产品，对桥架进行吊装，并应有各自独立的吊装卡具或支撑系统。在进出接线盒、箱、柜、转角、转弯和变形缝两端及丁字接头的三端500mm以内应设置固定支持点。

The lifting appliance shall adopt the finalized product to lift the bridge, and shall have their own independent lifting fixture or support system. Fixed support points shall be set within 500mm from both ends of inlet and outlet junction boxes, boxes, cabinets, corners, turns and deformation joints and three ends of T-joints.

水平桥架安装过程中，应有防晃措施。电缆桥架水平敷设时应按负荷曲线选取合适跨距进行支撑，跨距一般为1.5～3m；垂直敷设时其固定点间距不宜大于2m。

Anti sway measures shall be taken during the installation of horizontal bridge. When the cable tray is laid horizontally, the appropriate span shall be selected for support according to the load curve, and the span is generally 1.5 ~ 3M; When laying vertically, the spacing between fixed points shall not be greater than 2m.

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