Experimental Study On Seismic Performance Of Straw Ecological Composite Wall

Since the implementation of reform and opening up in China,the requirements of the country and the people for environmental protection have become higher and higher,and the development requirements for energy conservation and environmental protection have also entered the construction industry.At present,green buildings are a hot research topic,and there are also staged research results applied to actual projects.The straw ecological composite wall studied in this article is a new type of wall that emphasizes practicality.It is the key to whether the wall can be applied to actual production whether it can ensure the seismic performance of the structure while improving the thermal insulation performance of the wall.The main purpose of the straw ecological composite wall research is to realize the combination of agricultural waste and building materials,while improving the thermal performance of the wall while solving environmental pollutants.The straw ecological composite wall adopts the assembly construction method.Poor seismic performance is one of the main shortcomings of this type of wall.Therefore,this paper designs 4 different walls to explore the seismic resistance of this ecological wall in all aspects.Performance,the specific inquiry process is as follows:1.Test the performance of the wall raw materials,use different straw crushing input ratios as variables to make test blocks,and explore the maximum value of straw crushing by three parameters: cube compressive strength,axial compressive strength and elastic modulus The best participation ratio.2.The low-cycle repeated loading test was used to explore the seismic performance of the wall,and the seismic performance of the wall was judged by analyzing the parameters of the wall’s hysteresis curve,skeleton curve,and energy consumption.The 4 walls in the experiment used different composition forms for comparison and investigation:(1)the influence of the frame filling material on the wall;(2)the difference between the ordinary concrete and straw concrete pouring walls(3)Whether the wall has an open door and the effect on the wall.3.Use Abaqus to carry out finite element analysis on the wall,and use the integrated model for modeling.The constitutive relationship of the materials refers to the relevant design standards.The software calculation results are compared with the test data to verify the accuracy of the test results and simulation results and to compensate for the impact on the test results caused by the insufficient number of test pieces.