Method for testing safety performance of rigid heightened guardrail

Abstract

The invention discloses a method for testing the safety performance of a rigid heightened guardrail. The method comprises the following steps: step 1, carrying out mechanical property analysis on the rigid heightened guardrail; 2, establishing a finite element model of the rigid heightened guardrail; 3, establishing a finite element model of the test vehicle; 4, performing simulation collision test on the test vehicle and the rigid heightened guardrail; 5, carrying out a real vehicle collision test on the test vehicle and the rigid heightened guardrail; 6, comparing and analyzing a simulation collision test result and a real vehicle collision test result; and 7, analyzing the safety performance of the rigid heightened guardrail according to a comparison result. The method can be effectively applied to the safety performance test of the rigid heightened guardrail, the test result is reliable, the test result can support the technical use basis after the guardrail is heightened in the subsequent safety life protection engineering, and a solid theoretical and technical foundation is laid for comprehensively implementing the road safety life protection engineering.

Description

technical field [0001] The invention belongs to the technical field of safety performance testing of guardrails, in particular to a method for testing the safety performance of rigid heightened guardrails. Background technique [0002] The healthy development of the national economy has promoted the scale and level of highway construction in our country to a new level, and a large number of highways have gradually entered the stage of large and medium maintenance, reconstruction and expansion. For major and medium repair projects of highways, the general practice is to directly pave one or more layers on the original road surface according to the functional conditions of the road surface, resulting in an increase in the elevation of the original road surface, while the height of traffic safety facilities such as roadside guardrails is getting higher and higher. Low, has failed to meet the requirements of relevant norms and standards, and there are serious safety hazards. In...

AI Technical Summary

Problems solved by technology

Therefore, after the guardrail is directly heightened, whether its various performances meet the relevant specifications and standards, and whether it meets the role of traffic safety facilities, there has been a lack of effective testing methods for the safety performance of rigid heightened guardrails.

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