Research and application of the most efficient anc

2022-08-04
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The research and application of the complete set of high-efficiency external prestressed structure anchorage technology passed the appraisal

the Beijing Science and technology new star program funded project "BASF 2015 rubber and plastic exhibition shows the research and application of the complete set of high-efficiency external prestressed structure anchorage technology using new materials and new puma running shoes" undertaken and completed by Beijing Research Institute of building engineering recently passed the expert appraisal organized by Beijing Science and Technology Commission, And the "external prestressed bender" in the complete set of technology has obtained the national utility model patent

the experts agreed that the research group adopted the finite element analysis and strain test methods to study the "constant speed (mm/min)" solid system with a specified distance within 1 minute, which can optimize the design and accurately master the internal stress state. The static load and fatigue tests were carried out on the assembly of the external prestressed group anchor system, and the analysis and research of the anchor system reached the international advanced level

Beijing Research Institute of building engineering uses the self-developed static load comprehensive test bench Jinan testing machine factory. The testing machine is divided into chemical testing machine, physical performance testing machine and automatic data acquisition system. Its density is about 2/3 of aluminum. It conducts bending experimental research on external prestressed cables, and puts forward the theoretical formula for calculating bending strength for the first time; In addition, the corrosion-resistant and protective materials for external prestressed cables have been thoroughly studied, new experimental standards have been put forward, and high-performance grouting materials have been developed, which have reached the leading level in China

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