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在抗震设防区建房,要有抗震意识,建房要考虑能不能满足抗震要求。但有些地区农户的抗震意识比较淡薄,一些做法不符合要求。现分析如下。1.基础埋深较浅:农村建房的基础埋深一般为40～50厘米。从抗震和防冻害两个方面来考虑,基础埋深应在1米左右,埋深h≥冰冻线深度D。这样,基础稳定性和免受冻害才有保证,以免受冻产生裂缝,削弱了抗震性能。
To build a house in the earthquake-proof fortification zone, we must have a sense of earthquake resistance, and we must consider whether we can meet the earthquake-resistance requirements. However, in some areas, farmers’ awareness of earthquake resistance is relatively weak, and some practices do not meet the requirements. The analysis is as follows. 1. The depth of the foundation is shallow: The basic depth of building in rural areas is generally 40 to 50 centimeters. Considering from the aspects of earthquake resistance and anti-freezing damage, the basic depth should be about 1 meter, and the depth of burial depth should be greater than or equal to the depth D of the freezing line. In this way, the basic stability and protection from frost damage can be guaranteed so as to avoid cracks caused by freezing and weakening the anti-seismic performance.