弱电桥架各种弯头配件一般都是在厂家预订好的，在现场做的缺点一是不美观，二是不耐用（特别是喷涂及热浸锌处理的），三是费工时，特别是有的项目监理是不允许在现场加工的，所以通常是用户提前按施工图纸出好清单，由厂家订制好后再直接进行安装。

　　The various elbow accessories for weak current cable trays are usually pre ordered by the manufacturer. The disadvantages of doing them on site are: first, they are not aesthetically pleasing; second, they are not durable (especially those treated with spraying and hot-dip galvanizing); third, they are labor-intensive, especially since some project supervisors do not allow on-site processing. Therefore, users usually make a list in advance according to the construction drawings, and the manufacturer customizes them before installing them directly.

　　电缆桥架安装过程中，用到的弯头一般有三种：一种是水平弯，一是垂直上下弯，还有一种是"之"字弯。以下举例说明这些弯头制作方法及公式：例：400×150的桥架做45°"之"字弯从桥架侧面取15cm×0.8在桥架底部画点将这段距离等分,然后三个点连接就成一个45°的等腰三角形(另一边用同一方法)，然后将这个三角切掉就形成一个45°弯，然后再用要做的高度×1.41为里边的顶点再画三角形，方向与前面那个相反，做出来就是一个45°之字弯。90°弯是取要做的那一面的2倍画三角，例如400×150做水平弯头,则取400×2画三角切掉就行了，如果要做垂直弯头则取150×2。

　　During the installation of cable trays, there are generally three types of bends used: horizontal bends, vertical up and down bends, and zigzag bends. Here are some examples to illustrate the methods and formulas for making these elbows: For example, a 400 × 150 bridge frame is made into a 45 ° "Z" - shaped bend. Take 15cm × 0.8 from the side of the bridge frame and draw an equal distance at the bottom of the bridge frame. Then connect the three points to form a 45 ° isosceles triangle (use the same method on the other side). Cut off this triangle to form a 45 ° bend, and then use the height of 1.41 to be made as the innermost vertex to draw a triangle. The direction is opposite to the previous one, and the result is a 45 ° - shaped bend. A 90 ° bend is to draw a triangle twice the size of the side to be made. For example, if you want to make a horizontal bend of 400 × 150, you can cut off the triangle by taking 400 × 2. If you want to make a vertical bend, you can take 150 × 2.

　　总结出来的公式：比如45度的坡度弯头，你只要记住这句话就知道怎么做了"爬坡45度，桥架高度乘以0.8中分划三条线为一个弯，斜边是爬坡高度乘以1.41，30度是桥架高度乘以0.8除以45乘以30中分划三条线为一个弯，斜边是爬坡高度乘以2水平90度弯是桥架宽度乘以0.8中分划线，斜边(内边)600以上200乘以1.41 600以下100乘以1.41"。

　　The formula summarized is: For example, for a 45 degree slope bend, as long as you remember this sentence, you will know how to do it: "Climbing a slope of 45 degrees, multiplying the height of the bridge by 0.8, dividing three lines into one bend, the sloping edge is the height of the slope multiplied by 1.41, 30 degrees is the height of the bridge multiplied by 0.8 divided by 45 multiplied by 30, dividing three lines into one bend, sloping edge is the height of the slope multiplied by 2, horizontal 90 degree bend is the width of the bridge multiplied by 0.8, sloping edge (inner edge) above 600 multiplied by 200 multiplied by 1.41, and below 600 multiplied by 100 multiplied by 1.41".

　　制作方法及步骤：

　　Production method and steps:

　　本图的角α值同"一"中角α值；本图的b值与"一"中的b值不同，为层间距值。1、制作层弯头：层两个弯头的做法同"一"中弯头的做法，两个弯头间距a值由现场确定，但需满足电缆弯曲半径的要求。2、制作第二层弯头：（1）计算第二层桥架个弯头的定位尺寸e：量出层桥架定位尺寸d值，则e=d+btg1/2α式中：b为层间距，角α值同"一"中角α值（2）依照"一"的方法制作第二层弯头的第1个切口α；（3）计算两个弯头间距c值：c=2btg1/2α式中：b为层间距，a为层桥架两个弯头的间距（4）依照"一"的方法制作第二层弯头的第2个切口α；（5）计算补偿尺寸h：h=2 btg1/2α3、制作第三层弯头：制作方法同第二层弯头f=e+btg1/2α，g=2btg1/2α+c注：多列等间距等宽桥架任意角弯头的制作方法与多层等间距等高桥架任意角弯头的制作方法相同。三、多层"之"形弯头的作法：与"二"类似，只是a、c、g值相等，所切的两个α角在桥架的两边。现场做一个上坡弯头！图文并茂，通俗易懂！

　　The angle alpha value in this figure is the same as the angle alpha value in "one"; The b value in this figure is different from the b value in "one" and represents the interlayer spacing value. 1. Making the first layer of elbows: The method for making the two elbows on the first layer is the same as that of the elbow in "One". The distance a between the two elbows is determined on site, but it must meet the requirements of the cable bending radius. 2. Making the second layer elbow: (1) Calculate the positioning dimension e of the first elbow of the second layer bridge: First, measure the positioning dimension d of the first layer bridge, then e=d+btg1/2 α. In the formula: b is the interlayer spacing, and the angle α value is the same as the angle α value in "one". (2) Make the first cut α of the second layer elbow according to the method of "one". (3) Calculate the distance c between the two elbows: c=2btg1/2 α. In the formula: b is the interlayer spacing, and a is the distance between the two elbows of the first layer bridge. (4) Make the second cut α of the second layer elbow according to the method of "one". (5) Calculate the compensation dimension h: h=2 btg1/2. α 3. Manufacturing the third layer elbow: The manufacturing method is the same as that of the second layer elbow f=e+btg1/2 α, g=2btg1/2 α+c. Note: The manufacturing method of any angle elbow for multi column equidistant and equal width bridge is the same as that of any angle elbow for multi-layer equidistant and equal height bridge. 3、 The method of using multi-layer "zhi" - shaped elbows is similar to "two", except that the values of a, c, and g are equal, and the two α angles cut are on both sides of the bridge. Make an uphill bend on site! Illustrated and easy to understand!

　　在前期施工中，特别是弱电方面，做桥架是经常的事情！线槽桥架应用的场所：地下室。工厂。。地铁。等等地方需要做线槽桥架！！桥架弯头的制作就成为一门技术活。

　　In the early stage of construction, especially in the weak current aspect, it is common to make cable trays! The application location of cable tray: basement. factory market. The subway. Wait, the place needs to make cable trays and bridges!! The production of bridge bends has become a technical activity.

　　本文由  山东电缆桥架 友情奉献.更多有关的知识请点击  http://www.sddlqj.cn/   真诚的态度.为您提供为的服务.更多有关的知识我们将会陆续向大家奉献.敬请期待.

　　This article is a friendly contribution from Shandong Cable Bridge For more related knowledge, please click http://www.sddlqj.cn/ Sincere attitude To provide you with comprehensive services We will gradually contribute more relevant knowledge to everyone Coming soon.