Precautions for cable force detection of bridge suspension rods

Bridges are an important component of the entire road transportation network. In recent years, with the rapid development of China's traffic network and the continuous innovation of bridge construction methods, long-span cable-stayed bridges, suspension bridge and other cable structure bridges are playing an increasingly important role in traffic. As the lifeline of the cable structure bridge, the suspension rod cable is an important stress component that cannot be ignored.Due to the important position of suspension rod and cable force in the entire bearing system of cable structure bridges, cable force directly reflects the internal force state of cable structure bridges in a continuous state and is an important indicator for evaluating the bearing capacity of bridges. Whether the cable force is within a reasonable range will directly affect the overall stress state of the structure and the smoothness of the line. Therefore, detecting the cable force of bridge suspenders is an imp...

Non-destructive testing technology for internal corrosion and broken wires of bridge suspension rods and cables

The main reasons for the damage of bridge suspension rod and cable system include natural disaster damage and long-term cumulative damage of cables. Natural disaster damage mainly refers to the damage caused by strong winds, floods, earthquakes, and floating object impacts, which are mainly prevented through necessary protective measures; Long term cumulative damage refers to the long-term unstable load of bridge suspension rods and cables caused by factors such as fatigue and corrosion, which are hidden dangers such as pitting corrosion, reduced effective cross-sectional area, and wire breakage caused by fatigue and corrosion.Due to the harsh working environment, the current protective measures that can be taken cannot avoid corrosion and fracture of bridge cables and members, and the bridge suspension rod cables and suspension rod cables will inevitably rust. However, due to the shielding effect of the sheath of the suspension rod cables, it is not possible to directly analyze the co...

What are the functions and prospects of epoxy coated steel strands?

1、 At present, epoxy steel strand is mainly used for cable-stayed bridges and anchor ingots with high anti-corrosion performance requirements. Excellent anti slip and wear resistance, short curing time, fast opening to traffic, and high cost-effectiveness. Epoxy resin coated steel bars are a type of coated steel bars produced under factory production conditions, using electrostatic spraying method to spray epoxy resin powder on the surface of ordinary ribbed steel bars and ordinary plain round steel bars. Epoxy resin coated steel bars have excellent corrosion resistance and significantly lower bonding strength with concrete. They are suitable for reinforced concrete structures in industrial and civil buildings, general structures, roads, bridges, ports, docks, etc. in humid environments or corrosive media (when used in industrial building anti-corrosion engineering, it should also be checked with relevant standards). The template engineering and steel reinforcement damage at the cons...