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Anning Bridge Inspection Car Rental Bridge Construction Car Rental Good Car Rental Good Price.

Data：2021/10/22 15:31:43

Anning City Bridge Inspection Car Rental Bridge Construction Car Rental Car Rental Good Car Rental Price Xinyue Road Bridge Free Consultation Hotline 135-0000-3760, Cause Analysis of Ms. Fang's breakage: This kind of telescopic device is prone to deformation during processing and use, and it is difficult to ensure the fitting of the tooth plate and the base plate. Once a gap is generated, it is unfavorable to the stress of the connecting parts, which causes noise and car jumping. In addition, during day and night operation, the tooth plate is subjected to repeated loads, causing premature fatigue and fastening. Rubber plate The main failure forms of this type of telescopic device are: rubber plate peeling, embedded steel plate exposed, falling off, fracture, anchor bolt shearing and flying out of holes, concrete cracking on both sides, pits and grooves, etc. Anning Bridge Inspection Car Rental Bridge Construction Car Rental Good Car Rental Good Price. Cause analysis: First of all, it is the structure itself (design reason). The principle of this kind of telescopic device is to use the rubber shear deformation between the upper and lower grooves to meet the expansion and contraction of the beam. Steel plates are buried in the telescopic body, which bear the load across the gap at the beam end. Anchorage steel plates are arranged on both sides, which are connected with the beam end by bolts, and are installed in blocks every meter, so the integrity is poor. In addition, the horizontal friction of this type of telescopic device is very high, which requires extremely high anchoring system. Secondly, the product quality is not good, for example, the material properties of rubber, the material and reasonable arrangement of stiffening steel plates, the bonding strength between steel plates and rubber, and the control of temperature and humidity during production are all very strict, and there are some quality problems, such as the whole plate fracture, degumming, rubber layer wear, steel plate exposure, anchor bolts cutting off the rubber plate and flying out, etc., which are directly related to the quality, wide transverse width and large stiffness difference of its rubber telescopic device. Modulus formula The main failure forms of this type of telescopic device are as follows: (1) the main middle beam members are welded, which causes shaking and noise; Poor scalability; Aging, falling off or jumping out of the sealing rubber belt and serious water leakage; Cracks and pits appear in the concrete on both sides of the device, the bridge deck pavement is partially broken, the anchoring system is not ideal, and local or overall damage occurs. Cause analysis: First of all, the side beams and middle beams used in this kind of telescopic devices in China are mostly welded with steel plates or section steels to form a composite structure of special-shaped parts, so the welding quality is difficult to guarantee. In addition, by adopting layering (or clips) and fastening the sealing rubber belt with screws, the fasteners are easy to rust and break, resulting in poor structural integrity and heavy welding workload. In addition, the welding process is not satisfactory, so that the welding quality is difficult to guarantee, and welding starts or the rubber belt falls off or even jumps out. Secondly, in the reserved slot for installing this kind of telescopic device, there are not only anchor boxes, but also more anchor bars, including main bars and embedded anchor bars in the beam body, which brings difficulties to pouring concrete, and is prone to problems such as hollowness, difficulty in ensuring compactness and insufficient strength. Bite, cracks and local pits will occur during use. If not handled in time, serious problems such as complete destruction of anchor parts will occur. Anning Bridge Inspection Car Rental Bridge Construction Car Rental Good Car Rental Good Price.

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