Damping and tensile support with double curved surface

Abstract

The invention relates to a damping and tensile support with double curved surface, belonging to the technical field of civil engineering and particularly relates to a damping and tensile support used for civil engineering structure. A support body is provided with a damping mechanism comprising an inner arc surface on the upper part of the inner side of a circular cavity; the inner arc surface is covered with a first spherical surface metal plate layer; a spherical surface slide block is arranged below the first spherical surface metal plate layer; a first engineering plastic slide plate covers on the spherical surface slide block; a second spherical surface metal plate layer covers below the spherical surface slide block; a hyperbolic spherical plate of which the upper surface and the lower surface are spherical surfaces is arranged below the second spherical surface metal plate layer, the upper spherical surface of the hyperbolic spherical plate is covered with a second engineering plastic slide plate, and the lower spherical surface of the hyperbolic spherical plate is covered with a third spherical surface metal plate layer; a spherical surface support plate is arranged below the third spherical surface metal plate layer; a third engineering plastic slide plate covers the top of the spherical surface support plate; and the lower part of the spherical surface support plate is fixedly connected with the lower part of the inner side of the circular cavity. The invention has the advantages of simple construction, favourable damping effect, high bearing capability, favourable durability and the like.

Description

technical field [0001] The invention relates to the technical field of civil engineering, in particular to a shock-absorbing and tensile support for civil engineering structures. Background technique [0002] In the design of building structures, the impact of earthquakes on engineering structures cannot be ignored. As an important component of a common building structure, the shock-absorbing tensile bearing not only needs to transmit the load of the upper structure to the lower structure, but also needs to be able to slide and rotate to a certain extent, and should also have a certain shock absorption effect. [0003] At present, the shock-absorbing and tensile bearings used in building structures mainly include natural rubber bearings, lead-core rubber bearings and cast steel spherical bearings. The structure plays a certain protective role, but there are still many deficiencies. [0004] Natural rubber bearings have low bearing capacity, poor durability, and high mainte...

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Problems solved by technology

[0004] Natural rubber bearings have low bearing capacity, poor durability, and high maintenance costs; although lead rubber bearings have a certain damping and shock absorption effect, in addition to the above-mentioned shortcomings of natural rubber bearings, lead, as a heavy metal, The pollution to the environment is also very serious, which does not meet the requirements of environmental protection; the cast steel spherical bearing has a large bearing capacity, but generally does not have the function of shock absorption and isolation, and it is difficult for ordinary cast steel spherical bearings to realize free rotation under tension. and slide

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