桥架在工业，农业、修建、桥梁、运输等方面，近几年已大量地被选用。因为桥架具有外表漂亮、耐腐蚀性能好等特点，其使用范围越来越广泛。那么变形的桥架用什么方法可以整改好呢？下面 山东桥架厂家为您讲解。

Bridge has been widely used in industry, agriculture, construction, bridge and transportation in recent years. Because of its beautiful appearance and good corrosion resistance, the cable tray is used more and more widely. What method can be used to rectify the deformed bridge? Next, Shandong cable tray manufacturer will explain to you.

预应力法。在主梁下面设备一套张拉设备，运用拉筋的拉力使主梁产生上拱。这样在主梁下盖板产生压应力，上盖板产生拉应力，这种应力与外载荷构成的应力相反，抵消了部分的作业应力，主梁的受力状况有所改善。所以预应力法有强化主梁和纠正下挠的意图。这种方法简略易行，上拱量简略控制。其缺陷是有局限性，对较杂乱的桥架变形不易纠正。

Prestressing method. A set of tensioning equipment is installed under the main beam, and the tension of the tie bar is used to make the main beam camber. In this way, compressive stress is generated on the lower cover plate of the main beam, and tensile stress is generated on the upper cover plate. This stress is opposite to the stress formed by the external load, which offsets part of the operating stress, and the stress condition of the main beam is improved. Therefore, the prestress method has the intention of strengthening the main beam and correcting the downward deflection. This method is simple and easy to operate, and the camber is simply controlled. Its defect is that it has limitations and is difficult to correct the deformation of the relatively disordered bridge.

火焰纠正法。火焰纠正法便是对桥架某些部位进行加热，受热部位胀大，但其遭到邻近未加热部位的绑缚，不能悠闲胀大，因而，加热部位就被紧缩。

Flame correction method. The flame correction method is to heat some parts of the bridge, and the heated part expands, but it is bound by the adjacent unheated part, and cannot expand leisurely, so the heated part is tightened.

冷却后，又产生缩短。加热部位在冷却过程中，拉动周围金属彼此挨近，产生缩短力，相当于在主梁中性层下面效果一个偏疼力矩，使主梁康复上拱，抵达纠正结构变形的意图。火焰纠正法的灵活性强，可以纠正桥架结构的各种杂乱变形。

After cooling, shortening occurs again. During the cooling process of the heating part, the surrounding metal is pulled close to each other to produce a shortening force, which is equivalent to the effect of a moment of pain under the neutral layer of the main beam, so that the main beam can recover from arching and reach the intention of correcting the structural deformation. The flexibility of flame correction method is strong, which can correct various miscellaneous deformation of bridge structure.

此外桥架属于金属，有热胀冷缩的现象，室外桥架受温度影响较大例如环境高温度为40℃，低温度为-20℃。如果该环境的温差很大，是会呈现温差导致桥架变形状况，建议在镀锌电缆桥架的弯头处添加一个弹性节。

In addition, the cable tray belongs to metal and has the phenomenon of thermal expansion and cold contraction. The outdoor cable tray is greatly affected by temperature, for example, the high ambient temperature is 40 ℃, and the low ambient temperature is - 20 ℃. If the temperature difference in this environment is large, the bridge will be deformed due to the temperature difference. It is recommended to add an elastic joint at the elbow of the galvanized cable bridge.

有了它，铝合金电缆桥架也能安然度过没一个寒来暑往。根据电缆桥架装置标准，直线段钢制电缆架长度超越30m、铝合金或玻璃钢制电缆桥架长度超越1.5mm设有弹性节；电缆桥架跨越建筑物变形缝处设置补偿装置。

With it, the aluminum alloy cable bridge can safely survive every winter and summer. According to the standards for cable tray devices, elastic joints are provided for steel cable trays with a length of more than 30m and aluminum alloy or glass fiber reinforced plastic cable trays with a length of more than 1.5mm in straight sections; Compensation device shall be set at the position where the cable tray crosses the deformation joint of the building.

变形的桥架用什么方法可以整改好呢？以上就是问题的相关解答了，您对此有什么想了解的内容就来我们网站 //www.comprepyme.com咨询吧！

What method can be used to rectify the deformed bridge? The above is the answer to the question. If you want to know anything about it, please come to our website //www.comprepyme.com Consult!