Experimental Research Of Reinforced Concrete Beam Under The Explosive Load

Along with modern society economy flourishing more and more daily, thehigh-rise construction, the greatly cross structure had demonstrated asrepresentative's important symbolic construction by their peer superiority and theinfinite charm; However, in the worldwide scale all kinds of terror attack eventfrequent occurrence, the painful lesson let architect and engineers realized tosharpened the structure resistance terror attack ability the importance.Under such background, this article has conducted the preliminaryexperimental study to Beam component under detonation impact load function stressperformance mainly has carried on the following work:Matches the same beam which both sides hinged component regarding three,under the different explosion pressure function, gauges Beam's strain, the amount ofdeflection and the crack development situation.The confirmation by the energy method principle inferential reasoningpressure-impulse destruction criterion model, and according to this model,establishes the concrete component initially destroys under some detonation impactload function or not the judgment method.Through the comparison, finally indicated: Under detonation impact loadfunction Beams, the spot which first destroys mostly in the support place, presentsthe extrusion destruction characteristic, this time destructiveness quite is small;Along with pressure enlargement, by the support appears to the working pointapproximately for the slanting crack, this time in the girder span the base alsoappears the tiny crack, maintains the section to be good basically; In a pressurebigger situation, the Beam support appears the serious brittleness to destroy, in thegirder span the section is good.