Test apparatus for endurance of flexural member under load-environment coupling

Abstract

The invention which relates to a test apparatus for mechanical properties of a flexural member under the continuous load action belongs to the civil engineering field, wherein the test apparatus is especially suitable for occasions for testing the endurance of a reinforced concrete flexural member under the environment-load coupling action. The test apparatus comprises the reinforced concrete flexural member, a tension rib, anchoring parts and circular shaft loading rods, the anchoring parts are symmetrically arranged on two ends of the pulling force rib, the circular shaft loading rods are symmetrically arranged on the pulling force rib, and the middle horizontal segment of the pulling force rib is in parallel with the top surface of the reinforced concrete flexural member. The apparatus of the invention, which has the advantages of simple structure, convenient operation, no restriction by the size of the member, no need of pairing or bunching combination, and high strength, can satisfy loading needs of any load ratio.

Description

technical field [0001] The invention relates to a test device for the mechanical properties of a flexural member under continuous load, which is especially suitable for the occasion of studying the durability test of a reinforced concrete flexural member under the coupled action of environment and load, and belongs to the field of civil engineering. Background technique [0002] Concrete structures work under a certain load, and are subjected to coupling effects of various factors such as hardening, penetration, freeze-thaw, and chemical erosion. A large number of concrete durability results under no load cannot reasonably reflect the actual situation of the structure. state. For half a century, accidents of premature failure and shortened service life of concrete structures due to insufficient durability have been increasing, especially when major projects such as dams, roads, bridges, ports, and high-rise buildings are destroyed before reaching the design life. occurred a...

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Problems solved by technology

[0004] The purpose of the present invention is to solve the shortcomings of the existing long-term load simulation test device for flexural members, to provide a reinforced concrete test device with simple structure, convenient operation, small volume, no test space, and consideration of environment and load coupling. The test device for the life-time service performance and residual bearing capacity change of curved members

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