Anchor box realizing self-adaption to angle of lifting rod

Abstract

The invention provides an anchor box realizing self-adaption to the angle of a lifting rod. The anchor box comprises a horizontal partition plate, a longitudinal stiffening plate and a spherical anchor box; the horizontal partition plate and the longitudinal stiffening plate are fixed to the inner surface of a main component of a bridge in a welding way; the horizontal partition plate and the longitudinal stiffening plate are mutually welded and form a semi-spherical groove; and the spherical anchor box is fixed to the semi-spherical groove by virtue of the lifting rod. The anchor box realizing self-adaption to the angle of the lifting rod, provided by the invention, is approximately similar to a general anchor box in structure and barely increases extra workload. The matching of the spherical lower surface of the spherical anchor box and a semi-spherical support groove guarantees that the top surface of the anchor box is vertical to the lifting rod so that the lifting rod is in a relatively ideal stressed state. The anchor box provided by the invention effectively solves the problems that the service life of the lifting rod is not guaranteed because the lifting rod limited by construction precision cannot guarantee an ideal stressed state, and can achieve good economic efficiency.

Description

technical field [0001] The invention belongs to the technical field of bridge suspenders, in particular to an anchor box which adapts to the angle of the suspenders. Background technique [0002] Suspenders are widely used in arch bridges and suspension bridges. Suspenders are used to connect the main load-bearing structure (the arch rib of the arch bridge or the main cable of the suspension bridge) and the bridge deck system. Generally, a flexible cable system is used to bear the axial tension. If the connecting member of the suspender is a steel structure (such as steel box arch rib, steel bridge deck system, etc.), the corresponding suspender anchorage system generally includes the nut type anchor provided with the suspender and the anchor box set in the steel structure. . The anchor box is a force-transmitting structure, which is generally composed of welded steel plates and bears relatively large local pressure. In order to ensure smooth force transmission, the ancho...

AI Technical Summary

Problems solved by technology

[0003] Aiming at the problem that the conventional anchor box is limited by the installation error and cannot adapt to the angle of the boom, the present invention provides an anchor box with an adaptive boom angle, which realizes that the anchor box angle is adaptive to the installation angle of the boom, and ensures that the top surface of the anchor box is in line with the boom angle. The booms are perpendicular to each other, so that the booms are in an ideal stress state

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