Research work on China’s corrugated guardrails
2020-03-16
As a transportation facility to ensure highway safety, corrugated guardrails have long been widely used in developed countries. Accordingly, the United States has formulated a series of standard specifications regarding the selection of corrugated guardrail forms, installation principles, structural design, and the manufacturing, transportation, installation, and maintenance of corrugated guardrails, laying the foundation for the serialization and standardization of corrugated guardrails. With the determination of the 175th National Key Science and Technology Project 24.4-1, the research work on wave guardrails was put on track.
Japan began to study corrugated guardrails in 1965 and began to officially use them on the Meishin Expressway. In just a dozen years, the Japan Road Engineering Corporation, the Japan Road Association, and the Ministry of Construction's Civil Engineering Research Institute were the center, in conjunction with relevant universities, The manufacturer of corrugated guardrails has conducted extensive development and research on various corrugated guardrail structures.
my country's research on corrugated guardrails began in the preliminary design stage of the Beijing-Tianjin-Tangshan Expressway traffic project in 1984. . With the promulgation of the industry standard "Technical Specifications for the Design and Construction of Highway Traffic Safety Traffic Facilities" (JTJ 074-94), it marks that the design and construction of corrugated guardrails in my country has been put on a standardized track. The United States began to study corrugated guardrails in 1920. Through extensive experimental research, especially through a large number of full-scale collision tests and large-scale applications on highways, it has accumulated rich experience and collision theoretical knowledge.
