Rubber concrete hollow pier with internal and external constraint

Abstract

A rubber concrete hollow pier with internal and external constraint comprises an outer pipe, an inner pipe, stiffening plates, vertical partition plates and concrete protective layers; shear pins which are used for increasing the adhesive force between the concrete protective layers are distributed on the outer surface of the outer pipe; the concrete protective layers are coated on the outer wall of the outer pipe; the inner pipe is coaxially arranged inside the outer pipe; the plurality of stiffening plates with center holes are arranged between the outer pipe and the inner pipe along the axis direction; the inner edges of the stiffening plates are fixed on the outer wall of the inner pipe and the outer edges of the stiffening plates are connected with the inner wall of the outer pipe to form the empty chamber which is used for accommodating rubber concrete; the plurality of vertical partition plates are arranged in the empty chamber; two lateral sides of every vertical partition plate are fixed on the outer wall of the inner pipe and the inner wall of the outer pipe respectively. According to the rubber concrete hollow pier with the internal and external constraint, the effective boundary conditions of the three-direction compression state of the filled rubber concrete are established and accordingly the bearing capacity is improved, the damping effect is obvious, the size of the pier is effectively reduced, the detachment and installation is simple, the difficulty is reduced, waste rubber can be reused, resources are saved, and the environment-friendly effect is achieved.

Description

technical field [0001] The invention relates to a rubber concrete hollow pier with internal and external constraints. Background technique [0002] Concrete hollow pier refers to a reinforced concrete pier with a hollow interior, which is an optimized form of pier cross-section for light and economical substructure. It has the characteristics of small cross-sectional area, large cross-sectional resistance moment, light weight, good structural rigidity and bearing capacity. It is widely used in the field of roads and railways, and is mostly used for high bridge piers. Compared with the gravity-type solid bridge piers, the hollow bridge piers can generally reduce the amount of concrete by 40% to 60%. [0003] In the construction of roads and railways in mountainous areas of our country, due to the great changes in the terrain, high bridge piers account for a large proportion, and high bridge piers with a height of more than 50m are more common. In earthquake-prone areas, for...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the problem that the sidewall concrete of the reinforced concrete hollow pier is unconstrained and prone to earthquake damage, the present invention proposes a bridge that is not easily damaged, has high bearing capacity, good ductility, good durability, and good shock absorption performance, and is especially suitable for earthquake-prone areas. Rubber Concrete Hollow Piers with Internal and External Constraints

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