Self-balancing plate type support

Abstract

The invention discloses a self-balancing plate type support. The self-balancing plate type support is characterized in that a plate type rubber support body provided with a spring is adopted and fixedly arranged between an upper support steel plate and a lower support steel plate through anchor bolts; the plate type rubber support body is a round or rectangular cylinder, and an axial mounting hole is formed in the center of the plate type rubber support body; and the spring is arranged in the mounting hole and integrated with the plate type rubber support body, and the pre-tightening force of the spring and the plate type rubber support body is adjusted through the anchor bolts, so that self-balancing of the stress state of the support is achieved. Compared with the prior art, by adoption of the self-balancing plate type support, reasonable deformation of the support in the normal service stage and the over-constraint influence on horizontal deflection of a beam body and the support are not limited while the requirement for slip resistance is met, and the stress level of the spring and the plate type rubber support body and the overall slip resistance of the support are adjusted through the anchor bolts so as to meet the actual stress requirement, so that the overall slip resistance of the support is improved; and the self-balancing plate type support is particularly suitable for serving as an anti-slip support of a medium-span or small-span bridge, simple in structure and convenient to mount.

Description

technical field [0001] The invention relates to the technical field of bridge engineering, in particular to a self-balancing plate bearing capable of anti-sliding of medium and small-span bridges. Background technique [0002] Ordinary plate rubber bearings are widely used in bridge engineering, especially small and medium-span bridge engineering, due to their low overall cost and cheap construction methods. The two important indicators for the selection of ordinary plate rubber bearings are the maximum vertical bearing pressure and the minimum anti-sliding bearing pressure. For small and medium-span bridges, the maximum vertical bearing pressure and the minimum anti-slip bearing pressure of the bearing often cannot meet the selection requirements of the bearing at the same time. In order to solve such problems, existing products generally use enhanced bonding between the bearing and the beam body. performance and enhance the horizontal stiffness of the bearing. [0003] T...

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Problems solved by technology

[0004] The object of the present invention is to design a self-balancing plate bearing designed for the deficiencies in the prior art, adopting a plate rubber bearing with a spring, and adjusting the pretightening force of the support by the anchor bolt, so that the spring and the plate rubber bearing Form a common compression, realize the self-balancing system of the bearing, optimize the stress state of the plate rubber bearing, ensure the friction of the bearing to meet the anti-slip performance requirements, and not cause over-constraint effects on the horizontal displacement of the bearing, greatly The overall anti-slip performance of the support is improved, the structure is simple, and the installation is convenient. over-constraint problem

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