Cable stayed bridge cable force measuring device

Abstract

The invention relates to a cable stayed bridge cable force measuring device, comprising a pushing mechanism with a force measuring sensor, the pushing mechanism comprises a mechanism base used for being in threaded connection with a support barrel of a corresponding inhaul cable anchoring structure, and a pushing structure used for pushing a corresponding adjusting nut or anchor bearing plate is arranged on the mechanism base. When the cable stayed bridge cable force measuring device in the invention is used, the mechanism base is connected with the support barrel through threads on the periphery of the support barrel, so that force transmission to the support barrel can be achieved, the pushing structure on the mechanism base is pushed towards the adjusting nut or the anchor bearing plateto adjust the nut or the anchor bearing plate to form a counter force frame, under the action of the pushing structure, a gap is generated at a screw-thread fit position between the support barrel and the adjusting nut; that is, the contact force between the support barrel and the adjusting nut disappears, and the force value measured by the force measuring sensor is the tension of the inhaul cable.

Description

Technical field [0001] The invention relates to a cable bridge cable force measuring device in the field of cable bridge cable force measurement. Background technique [0002] Cable-stayed bridge, also known as cable-stayed bridge, is a type of bridge in which the main girder is directly pulled on the tower with many cables. It is a combination of pressure-bearing towers, tensioned cables and bending beams. Structural system. It can be regarded as a multi-span elastically supported continuous beam with cables instead of buttresses. It can reduce the bending moment in the beam, reduce the building height, reduce the structural weight, and save materials. Cable-stayed bridges are mainly composed of pylons, main beams, and stayed cables. The stayed cables are an important part of the stayed bridge. The stayed cables include cables. The cables are generally made of steel strands. The ends are respectively connected to the tower and the bridge body through cable anchoring structure...

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Problems solved by technology

[0003] Therefore, how to obtain the cable force of the rope is particularly important. The Chinese patent CN103148972B discloses "a wireless intelligent tension online monitoring system". The pulling force of the pendulum rope on the building components is directly obtained by the stay-wire dynamometer. This solution has relatively large limitations, because it requires a stay-wire dynamometer to be installed between the pendulum rope and the building components at the beginning of the installation of the pendulum rope. Each pendulum All the ropes need to be equipped with a cable dynamometer, not only the production cost is high, but more importantly, it is impossible to measure the tension of the cable for the cable that has been installed at present.

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