In the underground parking lot project of large and medium-sized commercial complex, it is necessary for the cable tray to bypass various pipelines or carry out bending connection with the main project, resulting in inconsistent bridge connection methods and large amount of elbow production and installation. The way of elbow is often affected by the indoor space of decorated ceiling and the direct passage of pipeline, and the connection way of elbow can not be defined, Temporary accurate measurement and large processing volume on the spot are unfavorable to the construction rate and bridge installation quality management.

本施工技術(shù)性在傳統(tǒng)式橋架連接工藝基礎(chǔ)上開(kāi)展推進(jìn)與改進(jìn)，運(yùn)用橋架兩邊擋雨板為軸，彎曲成所需視角后運(yùn)用螺釘固定不動(dòng)，實(shí)現(xiàn)當(dāng)場(chǎng)各種橋架彎曲連接規(guī)定，提升橋架連接施工品質(zhì)和施工高 效率。

The construction technology is promoted and improved on the basis of the traditional bridge connection process. The rain shields on both sides of the bridge are used as the axis, bent into the required angle of view and fixed with screws, so as to realize various bridge bending connection regulations on the spot and improve the bridge connection construction quality and construction efficiency.

（1）橋架連接彎頭設(shè)計(jì)

(1) Design of bridge connecting elbow

在管綜深化設(shè)計(jì)過(guò)程中利用深化設(shè)計(jì)模型對(duì)橋架彎頭數(shù)量、角度進(jìn)行統(tǒng)計(jì)分析與匯總，并確定橋架連接圓弧部位固定孔分部及個(gè)數(shù)，根據(jù)統(tǒng)計(jì)清單集中加工制作

In the process of comprehensive management deepening design, the deepening design model is used to make statistical analysis and summary on the number and angle of bridge bends, and determine the division and number of fixed holes at the arc connection part of the bridge, which are processed and made according to the statistical list

橋架連接角度確定與側(cè)面封板、底面封板固定

The connection angle of the bridge shall be determined and fixed with the side sealing plate and the bottom sealing plate

1）確定橋架連接角度，通過(guò)連接中 心螺栓為軸進(jìn)行角度調(diào)節(jié)；

1) Determine the connection angle of the bridge, and adjust the angle by connecting the central bolt as the axis;

2）角度確定后采用橋架彎頭側(cè)面圓形封板連接外圓四個(gè)螺栓進(jìn)行固定；

2) After the angle is determined, the circular sealing plate on the side of the bridge elbow is connected with four bolts on the outer circle for fixation;

3）安裝底邊連板時(shí)，先要將底邊連板彎曲成與彎頭一致視角后，再用螺釘擰緊。

3) When installing the bottom connecting plate, first bend the bottom connecting plate to the same angle as the elbow, and then tighten it with screws.

（4）電纜橋架彎頭連接，彎頭連接件在地面安裝進(jìn)行后就可以用以總體橋架安裝連接，側(cè)邊及底邊連板可提早開(kāi)展大批量制做，橋架彎頭中間連接應(yīng)保證嚴(yán)密牢固。

(4) For the elbow connection of cable tray, the elbow connector can be used for the overall installation and connection of cable tray after the installation on the ground. The side and bottom connecting plates can be made in large quantities in advance. The middle connection of cable tray elbow shall be tight and firm.

（5）查驗(yàn)與工程驗(yàn)收，對(duì)橋架連接彎頭連接品質(zhì)開(kāi)展查驗(yàn)，保證連接位置嚴(yán)密、牢固，連接視角精 確且連接螺栓連接堅(jiān)固后才可進(jìn)到下一步施工工序。

(5) Inspection and project acceptance: check the connection quality of bridge connection elbow to ensure that the connection position is tight and firm, the connection angle is accurate and the connection bolt connection is firm before proceeding to the next construction process.