What are the requirements for acceptance of steel support
2, [GB 50011-2010] metal yield displacement energy dissipation device, such as the energy consumption can not be reused, in the same type of sampling number of not less than 2, sampling pass rate of 100%, after sampling can not be used for the main structure. Type inspection and factory inspection shall be completed by third parties.The design of [JGJ99-2010]E.5.1 3, the BRB should be based on the test results, the test should be at least two groups of components test, rotating connection requirement investigation support; another group to support the uniaxial test, to test the properties of support, especially the performance in tension and compression load lag repeatedly.
What are the requirements for acceptance of steel supportAcceptance criteria for BRB product, only in China's 2010 version of "code for seismic design of buildings" (GB 50011-2010) and "technical specification for steel structure of tall buildings" (JGJ99-2010) manuscript has been mentioned, but the standard is still low:
1, [GB 50011-2010] buckling restrained brace should be in accordance with the same engineering support structure form, material and constraint yield yield capacity classification sampling test, structure form and material yield constrained buckling restrained the same and the yield capacity in 50% to 150% in the range of support into the same category. The sampling rate for each category was 2%, and not less than one. During the test, the 1/300, 1/200, 1/150, 1/100 support length of the stretch and compression of the 3 deformation. Test the hysteretic curve should be stable and full, with positive incremental stiffness, and the final stage of deformation of third cycles the capacity of not less than the maximum bearing capacity after 85%, after 1.1 times the maximum bearing capacity is not higher than the BRB limit bearing capacity calculation.
