密肋复合墙板的刚度计算

Lateral rigidity calculation of multi-ribbed composite wall

通过对密肋复合墙板构造的分析,按照混凝土体积不变的原则将墙板等效为正交各向异性的纤维加强复合材料,建立墙板的力学模型,经二次单向纤维加强,给出墙板的弹性常数计算公式,同时通过试验分析了影响刚度的主要因素及其取值范围,提出墙板弹性刚度的实用公式,计算结果与试验值吻合较好.

By analyzing the constitution of the multi-ribbed composite wall and equaling the prototype wall to wall made of orthotropic fiber reinforced composite materials according to the rule that the equivalent section area of concrete remains the same as that of the prototype,a mechanics model for equivalent walls is proposed in this paper.Through twice-single fiber strengthening,the formulas of elastic constants of equivalent walls are derived.Meanwhile,main affecting factors and the range of values of the lateral rigidity are analyzed based on the tests,and practical formulas of elastic lateral rigidity of the walls are advised.The calculating results tally with the tests results.