Superposed concrete balancing weight structure for seismic test and construction method of superposed concrete balancing weight structure

Abstract

The invention provides a superposed concrete balancing weight structure for a seismic test. The superposed concrete balancing weight structure comprises a plurality of secondary balancing weights, wherein the secondary balancing weights are manufactured by concrete; four first through holes are respectively formed in four corners of each secondary balancing weight; at least two first steel plates are arranged in each first through hole; each first steel plate is provided with a screw hole; each secondary balancing weight is positioned through four anchoring screws which penetrate the screw holes of the first steel plates at the four corners of the secondary balancing weight; a longitudinal positioning tongue-and-groove and a transverse positioning tongue-and-groove penetrate in the surfaces of the top and the bottom of each secondary balancing weight; at least two second steel plates are arranged in the middle of each secondary balancing weight; each second steel plate is provided with four screw holes; the secondary balancing blocks are connected to one another in a positioned manner through the positioning tongue-and-grooves in the surfaces of the tops and the bottoms of the secondary balancing blocks; and each secondary balancing block is fixedly locked through four anchoring screws which penetrate the four screw holes of the corresponding second steel plate. The invention also provides a construction method of the superposed concrete balancing weight structure for the seismic test. A layered superposing mode is used, the superposed concrete balancing weight structure for the seismic test is flexible and light, and the problem that balancing weights are difficult to mount is solved.

Description

technical field [0001] The invention relates to the technical field of civil engineering tests, in particular to a superimposed concrete counterweight structure and a construction method thereof for pile-soil dynamic interaction seismic simulation shaking table tests. Background technique [0002] The seismic test is one of the relatively large-scale dynamic tests, and this type of test has the advantages of strong pertinence and high reliability. However, its cost is often relatively high. For example, the data of a foreign experiment fund shows that when performing a shaking table experiment simulating an earthquake, the hourly cost is even as high as tens of thousands of dollars, and the counterweight is an important component often used in seismic tests. One, whether the installation of the counterweight is convenient or not directly affects the process and expenditure of the test and even the success or failure of the test. Conventional counterweights used in seismic t...

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Problems solved by technology

[0004] One of the technical problems to be solved by the present invention is: in view of the inconvenience of the above conventional counterweights in the process of installation, unloading and transfer, as well as the uneconomical use of lead weights and steel materials, a superposition type for seismic tests is provided. Concrete counterweight structure, using the form of layered superposition, flexible and light, solves the problem of difficult installation of counterweight

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