墩台盖梁目前仍用一般受弯构件计算。据近 2 0年来的研究表明 ,当受弯构件跨高比等于或小于 5时 ,梁截面应变不符合平面假定 ,即混凝土的应变沿截面高度不符合线性分布。因此 ,在钢筋混凝土结构界 ,对于跨高比 L /h≤ 5的构件 ,称为深受弯构件 ,其计算方法不同于一般受弯构件。墩台盖梁跨高比绝大多数在 3～ 5之间 ,应按深受弯构件计算。 Pier deck beams are still used to calculate the general bending member. According to the recent 20 years of research, when the span ratio of flexural members is equal to or less than 5, the beam section strain does not conform to the plane assumption that the strain of the concrete along the section height does not meet the linear distribution. Therefore, in the field of reinforced concrete structures, for members with a cross-height ratio L / h≤5, they are called deep-flexural members, which are different from the general flexural members. Pier top beam span height ratio between the vast majority of 3 to 5, should be calculated according to the deep bending member.