Experimental study and analysis of vertical load-bearing performance of hollow block foundation with grout concrete and reinforced
Hollow block foundation with grout concrete and reinforced(HBF)has the advantages of no formwork,good integrity,and easy construction.To study HBF′s vertical load-bearing performance and failure damage mode,the effects of the reinforcement method,specimen height,lateral soil pressure,and other factors were investigated through experimental studies and numerical analysis.The results show that the hollow block is involved in the foundation bearing of the HBF,during failure the outer ribs fall off and the inner ribs can be effectively restrained by the concrete.The stirrup can significantly improve the specimen cracking bearing capacity and deformation performance,but it has no significant effect on vertical ultimate bearing capacity,when the stirrup fails appears lantern-shaped outer drum in compression buckling.With the ratio of height to thickness increased,and the vertical ultimate bearing capacity slightly decreased(the maximum reduction was 5.35%).The lateral soil pressure has no significant effect on the vertical bearing capacity of the test group without stirrup,it has a double constraint effect with the inner stirrup can significantly improves the vertical bearing performance of the HBF."Code for design of masonry structures"(GB/T 50003-2011)suitable for the calculation of HBF vertical ultimate bearing capacity,the analytical results of the established finite element model are reliable,can provide a reference for engineering applications or similar research.
block masonry with grout concrete and reinforcedhollow blockreinforced masonrystrip foundationdouble constraint
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