摘要
楼面结构中,大多数板是不规整的连续板。连续板的实用简化算法很有用,但有的简化算法被滥用了,滥用简化算法会带来20%或更大的相对误差。通过对多跨连续板弯矩的某些内在规律的讨论,对于板的实际受力状态,可以找到一个近似的受力状态,这个近似状态的弯矩是实际弯矩的安全近似值。在探讨安全近似值保守程度的同时,对安全近似值的计算方法给予总结。并强调指出,力学计算中应该注重定性分析。
Most of plates in building floor structures are irregular eontinous plates. The practical simplified calculation methods tor this kind of plate are very useful. However, some simplified calculation method are being used wrongfully. To use wrongfully simplified calculation method can cause a relative error such as 20 percent or much more. Some inner laws of bending moments in the multi - span continous plates are discussed. For the veritable state of a loaded plate, one homologous state can be found, and the bending moments in this homologous state are the safe approximations of bending moments in the veritable state. The accuracy of safe approximations is discussed. The computation method of safe approximations is put forward. It is emphasized that one must note qualitative analysis in mechanical computation.
出处
《工业建筑》
CSCD
北大核心
2007年第12期128-130,70,共4页
Industrial Construction
关键词
建筑结构
楼盖结构
力学简化计算
楼板弹性弯曲
building structure floor structure simplified mechanical calculation elastic bending of floorslab
