一、前言 从愈来愈多的实践中说明:在薄壳结构中,由于温度变化而引起的亮体内力,在设计中是一个应该考虑的因素。过去,未予以足够的重视。近年来,在砖薄壳和钢筋混凝土壳体建筑中,有由于温度变化而引起附加内力使壳体开裂的现象。在国外亦曾发生由于没有充分考虑温度内力而使薄壳结构失败的事故。这样看来,在理论上寻求一个实用的计算温度内力的方法已经是实际生产的迫切要求了。 I. INTRODUCTION It has been stated in more and more practice that in the thin-shell structure, the bright internal force due to the temperature change is a factor that should be considered in the design. In the past, we did not pay enough attention to it. In recent years, in the brick shell and the reinforced concrete shell building, there is a phenomenon that the shell is cracked due to an additional internal force caused by a temperature change. There have also been accidents in foreign countries that have caused the failure of thin shell structures due to insufficient consideration of temperature internal forces. From this point of view, it is an urgent requirement for practical production to seek a practical method for calculating the temperature internal force in theory.