Tensile and compressive performance tests of a new type of connector for ultra-low energy consumption sandwich wall
Sandwich insulation wall panels play a crucial role in improving building energy efficiency.The connectors connect their insulation layer to their inner and outer wall panels,while transferring the load from the outer leaf panel to the inner leaf panel.Therefore,the mechanical properties of the connectors are crucial for the normal use of sandwich insulation wall panels.With the promotion of ultra-low energy buildings,when the thickness of insulation boards is large,existing connectors cannot provide sufficient stiffness and bearing capacity.Therefore,this article proposes a new anchoring method for GFRP connectors,verifies their axial performance through tensile and compressive tests,numerical simulations,and proposes a bearing capacity calculation formula based on experimental and parameter analysis results.The experimental results show that the tensile and compressive failure modes of the connectors are all concrete shear failure,and the anchoring steel bars play an important role in their failure modes.Taking into account the arrangement and quantity of anchoring steel bars to determine the failure surface,the axial bearing capacity can be calculated,providing a theoretical basis for the research and application of new types of connectors.
ultra-low energy buildingsandwich insulation wallanchor lengthGFRP connectortensile and compressive performance
NETL
NSTL
万方数据
