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桥架伸缩缝以及选择桥架宽度的处理方法

文章来源:http://www.sddlqj.cn/   作者:电缆桥架厂家发布时间:2022-08-19 浏览次数:

返回:常见问题
桥架伸缩缝是为防止建筑物构件由于气候温度变化,使结构产生裂缝或破坏而沿建筑物或者构筑物施工缝方向的适当部位设置的一条构造缝,那么桥架伸缩缝的处理方法是怎样的呢?以及选择济南桥架时的宽度要注意什么呢?
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?
桥架伸缩缝的处理:
Treatment of bridge expansion joints:
方法一、要跨越伸缩缝的桥架至少一侧有较长的直线段,宜超过30m,或伸缩缝两侧直线段桥架相加有30m,中间无水平或垂直弯通。以便于在桥架中留电缆(或电线)的伸缩余量,这个余量应大于伸缩缝宽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、当伸缩缝处桥架下方有足够的空间时,可断开桥架,断开距离B应大于建筑物伸缩缝宽L,而且要保证所有电缆能随伸缩缝伸缩,不受损坏,同时满足伸和缩时,电缆较小弯曲半径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、若伸缩缝处桥架下方没有足够的空间,应在离伸缩缝近处设置变宽直通,变宽直通的规格,应按能留足电缆伸缩余量(大于L),同时伸缩时都能满足电缆较小弯曲半径需要。
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.
济南桥架
选择桥架的宽度处理:
Select the width treatment of the bridge:
1、桥架的高度为50、100时每端各6只连接孔,高度为150、200时每端各12只连接孔。
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、支撑间距:支撑间距应小于等于载荷曲线允许载荷和支撑跨距。
2. Support spacing: the support spacing shall be less than or equal to the allowable load and support span of the load curve.
3、桥架宽度:选择桥架的宽度时,应留有适当的备用空位,以便为今后增添电缆用。
3. Bridge width: when selecting the width of the bridge, appropriate spare space shall be reserved for adding cables in the future.
4、隔开敷设:当电力电缆和控制电缆较少时,可以在同一桥架安装,但中间须用隔板将电力电缆和控制电缆隔开敷设。
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、电缆固定:汇线桥架水平敷设时,桥架之间的连接应尽量设置在跨距1/4处。水平走向的电缆每隔2米左右固定一下,垂直走向的电缆每隔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、桥架的安装高度应该高出地面2.2米,以避免出现桥架与其他通过物体在高度上面发生冲突的现象。
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.
此外如果桥架的安装地安装有顶棚或是其他障碍物,那么两者之间的间距应该大于0.3米,同样也是在根源上面避免电缆桥机与其他物体发生碰撞。总之,您想要了解更多事项的话就来我们网站http://www.sddlqj.cn咨询看看吧。
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://www.sddlqj.cn Let's consult.
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