| Earth building,which commune with nature,has a long history in China.Currently, earth building is always one of main structure types of rural housing in vast impoverished rural areas of China. Although earth building has good capability of heat preservation and heat insulation and comfortable living, it's earthquake-resistance behavior is low due to the low strength and loose structure of material, so the earth buildings collapse smashing in intermediate and large earthquake frequently.The focal point of this paper is how to enhance the earthquake-resistance behavior of earth building by improving the material, structuring measures, construction technology.On the base of field research,according to the XinJiang comfortable housing Project and some post-disaster reconstruction project,aiming at enhancing the earthquake-resistance behavior of earth building, the main results of this paper summarized as follows:(1)Developed two kinds of new structure forms of the earthbuilding which Wooden Framework of Mud Walls and new grout adobe walls structure are included. Making the mode first in the light of certain scale respectively, then gained the react to earthquakes and the rupture character of the two kinds of structure under the different intensities through the table-test.(2)According to the data and destructive features from the test, we found that wooden member have a cooperative work with adobe wall in the structure of the Wooden Framework of Mud Walls; While the cooperative work existing between wooden column and Cement mortar reinforcement belt in the new gypsum-adobe wall dwellings because of the strengthen effect from the emplaster. All these made the model of these two kinds kept a well integrity and did't collapse until the very end of the test which imitated the 8 degrees earthquake, it fully demonstrated that these two kinds of structure are satisfied the requirement of seismic fortification.(3)In addition based on the project in post-disaster reconstruction the paper put forward some suggestions on the aseismatic design of the earthbuilding.This paper is study on the improvement to the suitability of the earthbuilding, mainly include these aspects as follows: the innovation on the form of the structure; the improvement to details of seismic design; material improvement, all these have a great help to the improvement of the earthquake resistant behaviour of the earthbuilding and can widely use in the house construction in the poor areas. Meanwhile it has a certain reference value on the study of the research of rural building in poor areas. |
