Experimental Research On Stirrup Rate For Energy Dissipation Capacity Of Reinforced Concrete Beams

In strong earthquake, the damage of the components has a big inference to theoverall structure. Under the guidance of the seismic code that strong column and weakbeam strong shear weak bending, strong nodes ,thinking reinforced concrete structurein the beam, the first will have to bearearthquake, earthquake effect, if the beam canbe completely consumed seismic energy, the preservation of the column function, wecan achieve this level of earthquake does not fall.This article in accordance with the norms "of the People’s Republic ofGB50010-2002" and "GB50011-2010" designed nine concrete beams SJ-1 SJ-9, andthen on the concrete beam with hysteresis test, describing the destruction of thespecimen and form investigated by characteristics of the specimen and failurecharacteristics, the ductility factor and the stirrup rate considering the parameterswere calculated. SJ-1 to the SJ-9 specimen of each hysteretic energy, comparativeanalysis of the SJ-1 ~ SJ-9 test results of nine specimens found in the hysteresisamplitude displacement effect, the greater the ductility coefficient of reinforcedconcrete beams, specimen hysteresis hysteretic energy the greater the attenuation ofthe energy dissipation capacity the faster the lower the residual energy dissipationcapacity. Stirrup ratio on the energy dissipation capacity of reinforced concrete beamsin the role of hysteresis with the phased impact of ductility factor. Small ductility (μ≤2) role, the greater the stirrup ratio, the greater the residual energy dissipationcapacity of reinforced concrete beams in the hysteresis; stirrup ratio in the mediumductility and ductility (μ> 2) under the action of no significant effect on the reinforcedconcrete beam hysteretic energy capacity and residual energy dissipation capacity.Analog amplitude loading 20mm, 40mm, 60mm, three kinds of displacementamplitude, the hysteresis loop energy-consuming analysis of test results, halfhysteresis loop energy consumption analysis, the peak force the cumulative energyconsumption analysis, the secant stiffness - cumulative energy analysis, the tangentstiffness cumulative energy consumption analysis, elastic-plastic strain analysis,looking for the expression of a luffing role of the energy consumption of reinforcedconcrete beams.