電纜橋架伸縮縫是為防止建筑物構件由于氣候溫度變化，使結構產生裂縫或破壞而沿建筑物或者構筑物施工縫方向的適當部位設置的一條構造縫，那么電纜橋架伸縮縫的處理方法是怎樣的呢。

The expansion joint of cable tray is a structural joint set at an appropriate position along the direction of the construction joint of the building or structure to prevent cracks or damage to the structure due to climate and temperature changes. So, what is the treatment method for the expansion joint of cable tray.

要跨越伸縮縫的橋架至少一側有較長的直線段，宜超30m，或伸縮縫兩側直線段橋架相加有30m，中間無水平或垂  、當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應大于建筑物伸縮縫寬L，而且要保證所有電纜能隨伸縮縫自由伸縮，不受損壞，同時滿足伸和縮時，電纜較小彎曲半徑R的要求。

At least one side of the bridge that needs to cross the expansion joint should have a long straight section, preferably exceeding 30m, or the sum of the straight sections on both sides of the expansion joint should be 30m. There should be no horizontal or vertical space in the middle. When there is enough space under the bridge at the expansion joint, the bridge can be disconnected. The distance B should be greater than the width L of the building expansion joint, and it should be ensured that all cables can freely expand and contract with the expansion joint without damage, while meeting the requirement of a smaller bending radius R for cables during expansion and contraction.

若伸縮縫處橋架下方沒有足夠的空間，應在離伸縮縫較近處設置變寬直通，變寬直通的規格，應按能留足電纜伸縮余量（大于L），同時伸縮時大多能滿足電纜較小彎曲半徑需要。伸縮縫兩邊變寬直通之間的距離B可略大于伸縮縫寬L。當伸縮縫處橫向沒有空間、無法安裝變寬直通時，可向伸縮縫兩側適當移位。當兩邊各設一只變寬直通仍不能符合留足電纜伸縮量和較小彎曲半徑要求時，伸縮縫兩側可安裝兩只對稱連接的變寬直通。伸縮縫兩邊橋架之間距離B仍略大于L

If there is not enough space under the bridge at the expansion joint, a widened straight through should be set up closer to the expansion joint. The specification of the widened straight through should be able to leave enough cable expansion allowance (greater than L), and at the same time, it should meet the requirement of smaller bending radius of the cable during expansion. The distance B between the widened straight lines on both sides of the expansion joint can be slightly greater than the width L of the expansion joint. When there is no space horizontally at the expansion joint and it is impossible to install the widened straight lines, they can be appropriately shifted towards both sides of the expansion joint. When one widened straight through is set on each side but still cannot meet the requirements of sufficient cable expansion and smaller bending radius, two symmetrically connected widened straight through can be installed on both sides of the expansion joint. The distance B between the bridge frames on both sides of the expansion joint is still slightly greater than L