橋架伸縮縫是為防止建筑物構(gòu)件由于氣候溫度變化，使結(jié)構(gòu)產(chǎn)生裂縫或破壞而沿建筑物或者構(gòu)筑物施工縫方向的適當(dāng)部位設(shè)置的一條構(gòu)造縫，那么橋架伸縮縫的處理方法是怎樣的呢？以及選擇濟(jì)南橋架時的寬度要注意什么呢？

The bridge expansion joint is a structural joint set at an appropriate position along the construction joint direction of the building or structure to prevent the structure from cracking or damage due to the change of climate and temperature. What is the treatment method of the bridge expansion joint? And what should be paid attention to when selecting the width of the bridge?

橋架伸縮縫的處理：

Treatment of bridge expansion joints:

方法一、要跨越伸縮縫的橋架少一側(cè)有較長的直線段，宜超過30m，或伸縮縫兩側(cè)直線段橋架相加有30m，中間無水平或垂直彎通。以便于在橋架中留電纜（或電線）的伸縮余量，這個余量應(yīng)大于伸縮縫寬L。

Method 1: at least one side of the bridge to cross the expansion joint has a long straight section, which should be more than 30m, or the straight sections on both sides of the expansion joint add up to 30m, and there is no horizontal or vertical bend in the middle. In order to reserve the expansion allowance of cables (or wires) in the bridge, this allowance shall be greater than the expansion joint width L.

方法二、當(dāng)伸縮縫處橋架下方有足夠的空間時，可斷開橋架，斷開距離B應(yīng)大于建筑物伸縮縫寬L，而且要保證所有電纜能隨伸縮縫伸縮，不受損壞，同時滿足伸和縮時，電纜較小彎曲半徑R的要求。

Method 2: when there is enough space under the bridge at the expansion joint, the bridge can be disconnected. The disconnection distance b should be greater than the width l of the expansion joint of the building. In addition, all cables should be able to expand with the expansion joint without damage, and meet the requirements of the smaller bending radius r of the cable during extension and contraction.

方法三、若伸縮縫處橋架下方?jīng)]有足夠的空間，應(yīng)在離伸縮縫近處設(shè)置變寬直通，變寬直通的規(guī)格，應(yīng)按能留足電纜伸縮余量（大于L），同時伸縮時都能滿足電纜較小彎曲半徑需要。

Method III. If there is not enough space under the bridge at the expansion joint, a widened straight line shall be set near the expansion joint. The specification of the widened straight line shall be such that the cable expansion allowance (greater than l) can be reserved, and the expansion can meet the needs of the small bending radius of the cable.

選擇橋架的寬度處理：

Select the width treatment of the bridge:

1、橋架的高度為50、100時每端各6只連接孔，高度為150、200時每端各12只連接孔。

1. When the height of the bridge is 50 and 100, there are 6 connecting holes at each end, and when the height is 150 and 200, there are 12 connecting holes at each end.

2、支撐間距：支撐間距應(yīng)小于等于載荷曲線允許載荷和支撐跨距。

2. Support spacing: the support spacing shall be less than or equal to the allowable load and support span of the load curve.

3、橋架寬度：選擇橋架的寬度時，應(yīng)留有適當(dāng)?shù)膫溆每瘴唬员銥榻窈笤鎏黼娎|用。

3. Bridge width: when selecting the width of the bridge, appropriate spare space shall be reserved for adding cables in the future.

4、隔開敷設(shè)：當(dāng)電力電纜和控制電纜較少時，可以在同一橋架安裝，但中間須用隔板將電力電纜和控制電纜隔開敷設(shè)。

4. Separate laying: when there are few power cables and control cables, they can be installed on the same bridge, but the power cables and control cables must be separated and laid by partitions.

5、電纜固定：匯線橋架水平敷設(shè)時，橋架之間的連接應(yīng)盡量設(shè)置在跨距1/4處。水平走向的電纜每隔2米左右固定一下，垂直走向的電纜每隔1.5米左右固定一下。

5. Cable fixation: when the main cable tray is laid horizontally, the connection between the cable trays shall be set at 1 / 4 of the span as far as possible. The horizontal cable shall be fixed every 2 meters, and the vertical cable shall be fixed every 1.5 meters.

6、橋架的安裝高度應(yīng)該高出地面2.2米，以避免出現(xiàn)橋架與其他通過物體在高度上面發(fā)生沖突的現(xiàn)象。

6. The installation height of the bridge shall be 2.2m higher than the ground to avoid the conflict between the bridge and other passing objects.

此外如果橋架的安裝地安裝有頂棚或是其他障礙物，那么兩者之間的間距應(yīng)該大于0.3米，同樣也是在根源上面避免電纜橋機(jī)與其他物體發(fā)生碰撞。總之，您想要了解更多事項(xiàng)的話就來我們網(wǎng)站http://m.ymmgjx.net咨詢看看吧。

In addition, if the bridge is installed with a ceiling or other obstacles, the distance between the two should be greater than 0.3m, which is also to avoid collision between the cable bridge crane and other objects at the root. In short, if you want to know more, please come to our website http://m.ymmgjx.net Let's consult.