Experimental Study on Mechanical Properties of Rectangular Reinforced Concrete Pipe with Corrosion Defects

Rectangular reinforced concrete pipes are widely used in various municipal projects. Because they often located weak strata urban areas, prone to structural defects such as corrosion, which turn leads a decline the bearing capacity of and, severe cases, causes disasters pipe collapse. In this paper, mechanical properties rectangular with corrosion studied through laboratory tests, and influence failure mechanism depth on ultimate is analyzed. A numerical simulation method verify test results, results good agreement indoor results. The research shows that mode under TEB conditions can be divided into an uncracked stage, crack development stage stage. With increase depth, decreases. When equal thickness protective layer, more than 30%, has great pipe.