Uniform force transmission device for bridge support and installation method thereof
A bridge bearing, uniform technology, applied in the direction of bridges, bridge parts, bridge construction, etc., can solve the problems of bearing void, bias pressure, etc., and achieve the effects of uniform compression, simple assembly process, and elimination of construction errors.
Active Publication Date: 2017-03-22
XIAN HIGHWAY INST
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Problems solved by technology
[0008] The technical problem to be solved by the present invention is to provide a uniform force transmission device for bridge supports in view of the deficiencies in the above-mentioned prior art. Existing problems such as support void, bias, excessive local deformation, etc.
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[0047] Such as figure 1 , figure 2 As shown, the uniform force transmission device for the bridge support of the present invention includes a force regulating device installed on the bridge plate rubber bearing and a pre-embedded steel plate 1 at the bottom of the bridge main girder 5. The force regulating device is arranged parallel to the bridge plate rubber bearing. The force regulating device is a steel spherical cap polymerized mortar structure and it includes an upper backing plate 3-1 located on the bridge plate rubber bearing, a spherical cap 3-2 fixed above the middle of the upper backing plate 3-1 and The polymer mortar filling layer 3-3 is filled with polymer mortar filling the cavity between the upper backing plate 3-1 and the embedded steel plate 1 at the bottom of the beam. The top of the spherical cap 3-2 is supported on the beam The bottom of the steel plate 1 is pre-embedded and fixed in the polymer mortar filling layer 3-3, and the main girder 5 of the bri...
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The invention discloses a uniform force transmission device used for a bridge support and an installation method of the uniform force transmission device. The uniform force transmission device comprises a stress adjustment device arranged on a bridge laminated rubber bearing, and a beam bottom embedded steel plate embedded in the bottom of a bridge main beam. The stress adjustment device is of a steel plate spherical cap polymer mortar structure and comprises an upper cushion plate located on the bridge laminated rubber bearing, a spherical cap fixed to the portion above the middle of the upper cushion plate, and a polymer mortar filling layer formed by polymer mortar through filling, wherein a cavity between the upper cushion plate and the beam bottom embedded steel plate is filled with the polymer mortar. The top of the spherical cap is supported by the bottom of the beam bottom embedded steel plate and is fixed to the inner portion of the polymer mortar filling layer. The bridge main beam is a reinforced concrete beam. The installation method includes the steps of firstly, installing the beam bottom embedded steel plate; secondly, constructing the steel plate spherical cap polymer mortar structure; thirdly, installing the main beam. The uniform force transmission device and the installation method are reasonable in design, convenient to install, good in use effect, and capable of solving the problems that existing bearings are prone to bearing separation, unsymmetrical pressure, oversize local deformation, and the like.
Description
technical field [0001] The invention belongs to the technical field of bridge construction, and in particular relates to a uniform force transmission device for a bridge support and an installation method thereof. Background technique [0002] Bridge bearings are important components connecting the bridge superstructure and bridge substructure. Free deformation under the influence of factors such as temperature changes, concrete shrinkage and creep, and bridge bearings are directly related to the operational safety and service life of the bridge structure. [0003] In my country, plate rubber bearings have been developed and used since 1965, and have been used for 25 years. At present, they have become a widely used bearing form for domestic highways and urban bridges. Moreover, in 1988, the "Technical Conditions for Plate Rubber Bearings of Highway Bridges" (JT3132. In 1994, the Standards for Plate Rubber Bearings of Highway Bridges (JT / T4-93) were revised and promulgated...
Claims
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IPC IPC(8): E01D19/04E01D21/00
Inventor 汪小鹏封明明丁楚志雷英鸽
Owner XIAN HIGHWAY INST