Research On Earthquake Resistance Protection Of Rural Residence In Wuhan City

During previous earthquakes, the rural residence is the worst affected. The main reason is that the rural residence is made of brick or stone. This type of structure is mainly expressed in the nature of brittle and weak deformation performance, resulting in weak capacity of resisting to earthquake. What's more, the rural residence has not been designed reasonably by design institute in the time of construction, and the construction quality is poor. Wuhan City is also the case. Moreover the Wuhan City has been determined as one of the eleven focus defense cities to earthquakes by the State Council in the next fifteen years .Therefore, specific understanding the seismic performance of the rural residence in Wuhan city and how to improve the seismic capacity is an urgent problem need to be resolved. The article does some studies on the subject, and the main contents as follow:Firstly, Carefully introduced the residential villages and towns of this low-rise masonry structure prevalent species in the earthquake damage to a variety of common conditions, and carefully introduced the types of housing in the level of the internal forces under earthquake and seismic check the calculation, a brief description of seismic design concept.Secondly, the rural residence around Wuhan City has been surveyed widely. Considering the construction age, structure type, low-rise housing, construction materials and other factors, two typical rural residences are get to be tested on static and dynamic. Through static testing of construction the physical parameters and structure geometry size has been get. Those do a god job to the seismic analysis and structural identification; Through dynamic testing the damping and the self-vibration cycle of the structure is gained. Those provide a reference for studying of the integrated performance and finite element analysis.Thirdly, seismic appraise for the typical residence: According to Seismic Evaluation for a multi-story Masonry Building and Code for seismic design of buildings. Residence's Seismic appraisal can be identified by Structural System, housing' overall connection, the parts that easy Collapse easily and vulnerably and the seismic load ability of the wall to carry out. The comprehensive seismic capacity of the overall structure can be identified into two-level in identification. The first-class identification mainly get the comprehensive assessment by the judgment of the concept. The second-class identification mainly get the comprehensive assessment by seismic checking. Through the two-level identification. The seismic weak links of the structure can be Obvious.Fourthly, seismic performance evaluation: the earthquake damage of masonry housing is mainly expressed in the destruction of the wall, so the safety factor method is used to check the seismic capacity of the two typical rural residences' walls. The finite element program is used to calculate the safety factors of the walls under six, seven, eight degrees of seismic separately. Combined with related literature, a preliminary judgment of all wall's damage grades can be get under different seismic intensities. According to the three principles of anti-seismic standards. The typical residences' seismic performance can be get preliminarily, and the seismic performance of all Wuhan city's residences can be reflected.On the one hand, the work have done provide a reference standard for rural residence's seismic performance evaluation. On the other hand, it provides a theoretical basis for the earthquake disaster prevention in Wuhan.