Pile head fixed end pile-soil dynamic interaction vibration table test device and construction method thereof

Abstract

The invention provides a pile head fixed end pile-soil dynamic interaction vibration table test device and a construction method thereof. The device comprises a vibration table board, a test pile, load sensors, an abutment and strap, a concrete mass block, a sand box, corbels, and a displacement measurement device. The test pile is consolidated at the bottom of the sand box. The top of the test pile and the abutment and strap are consolidated as a whole. The counter weight is placed on the abutment. The horizontal load sensor and the vertical load sensor are respectively placed on the top ends of the corbels at the two sides. According to the pile head fixed end pile-soil dynamic interaction vibration table test device and the construction method thereof, by optimizing the experimental model structure, the defect that a conventional test device of the kind cannot truly simulate the interaction between an integral bridge abutment support pile and soil dynamic and cannot comprehensively collect the end support force, horizontal displacement and the like of the abutment and the strap in the test process is solved. The top end of the corbels is equipped with a flexible and light dowel bar device for measuring the horizontal displacement and force of the abutment, and therefore, the problem that test data acquisition is cumbersome is solved.

Description

Technical field [0001] The invention relates to a pile-soil dynamic interaction shaking table test device for a fixed end of a pile head and a construction method thereof. Background technique [0002] At present, in the seismic simulation test of pile-soil dynamic interaction, when simulating the dynamic interaction response characteristics of the integral bridge abutment supporting pile-soil structure under the action of earthquake, the pile and abutment structure are often replaced by articulated forms, which cannot reflect the truth. The force transmission characteristics of the integral bridge abutment support piles and the superstructure consolidation form, so it cannot accurately reflect the dynamic interaction characteristics of the integral bridge abutment support piles and soil. [0003] Secondly, this type of seismic test is one of the large-scale dynamic tests. This type of test has the advantages of strong pertinence and high reliability. However, the cost is relative...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is that the above-mentioned conventional hinged pile head consolidation shape cannot truly simulate the integral bridge abutment support pile-soil dynamic interaction and cannot fully collect the support force at the end of the abutment slab during the test. and horizontal displacement, a pile-soil dynamic interaction shaking table test device and its construction method for pile head consolidation are provided

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