Research On Plastic Damage Characteristics Of Fully Graded Concrete

As we all know,concrete has irreplaceable importance in the engineering construction industry.As an important function of the water conservancy industry,concrete dams are of great significance to study its mechanical properties.Under the action of strong earthquakes,concrete dams often suffer from nonlinear deformation and damage.In order to better meet the simulation of concrete dams under strong earthquakes and other situations,we need to further study the nonlinear damage characteristics of fully graded concrete.This will be of great significance for future engineering simulation.This article is based on the experimental data of the “Xiluodu Arch Dam Full-graded Concrete Dynamic Characteristics Test and Analysis Research Report”by the China Institute of Water Resources and Hydropower Research,including the uniaxial tensile and compression tests of four-graded concrete and the tensile and compression test of reciprocating loading.Point bending test data.This article will summarize and summarize the bending and pulling data based on the Academy of Water Sciences and conduct further simulation verification based on this.The specific work content mainly includes the following aspects:1.By collating the flexural test data of concrete specimens including peak strain,peak stress,non-linear strain,plastic damage,etc.,summarize the bending test characteristics of the four graded concrete and a single test.And general characteristics under cyclic loading conditions.2.Based on the flexural test data of the fully graded concrete,a single load simulation is performed to obtain the full curve and compare it with the experimental data.3.Using the damage and other non-linear parameters summarized by the experimental data,carry out a full-gradation concrete cyclic loading simulation,and compare the simulation results with the experimental data to further confirm thereliability of the experimental data and the generalizability in the field of engineering simulation.Through the above studies,we will have a more comprehensive understanding of the single-stage and cyclic loading bending limit characteristics of fully graded concrete,which will provide good theoretical support for the simulation and analysis of specific projects in the future.