Multifunctional integrated tester of road surface and bridge deck deformation mechanics characteristic

Abstract

The invention discloses a multifunctional comprehensive tester for testing mechanical characteristics of deformation of pavements and decks, which belongs to the test equipment of mechanical properties. The multifunctional comprehensive tester mainly comprises a supporting stand, a controllable temperature area, a vertical loading system, a vertical load boundary balancing system, a mechanical crank connecting rod circulatory loading system, a loading displacement sensor and an integrated control display system. The time variations of loading and deforming are recorded after the test begins. The multifunctional comprehensive tester can partially load indentation tests and partially load creep tests, and can do partial cyclic loading test through utilizing the vehicle load which is generated by the mechanical crank connecting rod circulatory loading system and is simulated and repeatedly acted by harmonic load. The multifunctional comprehensive tester can finish multinomial system tests without changing a cramping apparatus, can fully obtain the relative dynamic-static mechanical properties of pavements and decks, anti deformation capacity index and important parameter C, phi of anti-shearing property of material, and can solve the problem that a deformation stability integrated test and comprehensive evaluation can not be done on engineering sites.

Description

Technical field: [0001] The invention belongs to road surface and bridge deck mechanical characteristic equipment, which is used for reproducing and observing road surface and bridge deck deformation stability and static dynamic response, and is a kind of test items including local loading press-in, local loading creep, and local cyclic loading dynamic response test items. It is a multi-functional comprehensive tester, and can realize the comprehensive detection and evaluation of deformation mechanical properties on the engineering site based on test experience and mechanical analysis principles. Background technique: [0002] At present, the main methods of testing and researching the deformation mechanical properties of road pavement and bridge deck surface at home and abroad are: Marshall method, triaxial test method, creep test method, rutting test method and shear test method. In many countries such as the United States, Japan, and my country, the indicators for evaluat...

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Problems solved by technology

[0012] The purpose of the present invention is to provide a multifunctional comprehensive tester for the deformation mechanical properties of road surfaces and bridge decks, which can completely obtain the relevant dynamic and static mechanical properties of road surfaces and bridge decks, the anti-deformation ability index and the important parameters of material shear resistance. And solve the problem that the comprehensive test and comprehensive evaluation of deformation stability cannot be carried out on the engineering site

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