Pseudo-static Test Study On The Damage Of Fujian Square Tulou

In recent years,due to the government and the social from all walks of life’s emphasis on the concept of sustainable development constantly,because of the raw soil building itself character such as environmental protection and low energy consumption,the government and scholars also pay more attention to the study of raw soil buildings.As the typical representative in the construction of raw soil,the peak of the construction technology of the soil,fujian tulou is also attracting the attention of scholars.Fujian tulou is already a world cultural heritage,and its cultural and historical values need to be valued and protected by society.Before due to the lack of enough attention and protection,the number of fujian tulou is shrinking,the current of raw soil buildings in our country’s research also is less,also lack enough standards and regulations applicable to domestic raw soil buildings.In recent years,scholars have been conducting research on the construction of raw soil buildings,which has carried out some research on historical value,cultural value and structural performance.The damage of fujian Square tulou pseudo-static test in this paper as an important means of evaluating tulou mechanics performance,the seismic performance research of tulou play a supplementary role,as a foreshadowing for follow-up study.This paper mainly studies through the following aspects:1、Based on the field investigation of the yongding hongkeng soil building group,this paper obtains the material selection,structure layout,construction sequence,external and internal dimensions of fujian tulou.Several kinds of cracks in the rammed earth wall of fujian tulou are obtained,and the data of all kinds of cracks are measured.2、After several investigations on the earth buildings in yongding area,the shape and size of the earth building and the parameters of the cracks were statistically analyzed,and the model of the soil building in the typical square was selected to make the model of the soil building,make artificially in the tulou model simulation of the prototype tulou cracks,pseudo static test,the test square tulou mechanical properties of the model.Due to the particularity of rammed earth construction,it is different from modern structures such as concrete structure and steel structure,ordinary rammed earth construction scale model of the model in the pseudo-static test easily happened at the bottom of the integral sliding or moving head position directly cut bad,difficult to obtain meaningful results,and the tulou scale model is different from the ordinary model of rammed earth wall,its size is larger and more complex,because of the fact that the objective conditions are not able to produce a lot of experimental models to achieve the ideal test data,it’s a new method of experimentation,and the model of the earth building is based on the similarity principle,using the concrete replace the earth building model.Before the quasi-static test,the test group was equipped with low-strength concrete test blocks and tested its strength and elastic modulus,and selected the suitable strength of the concrete mixture ratio to make the soil building scale model.3、The ABAQUS finite element model,which is the same as the experimental model,was established by using the two materials of plain concrete and rammed earth respectively,and the experimental data after the finite element simulation test were obtained,and the data of the experimental data were compared and analyzed.