基于特征值屈曲的古建木柱的强化理论与应用研究

Study on the Theory and Application of Strengthing Stakes in Ancient Architectures Based on the Eigenvalue Buckling

为保护古代木构建筑,提高其抗灾害荷载能力,提出了一种用钢板强化木柱的方法.采用静力法建立强化后的木柱稳定平衡方程,计算了基于特征值屈曲的临界荷载,并获得了强化长度与临界荷载提高系数之间的关系.工程应用表明,该方法可行.

To protect the ancient wood constructions and improve their capacites of resisting disasters,a mothod strengthing stakes with steel plate is put forward.The stability-balance equation for stakes after-strengthed is established using static methods.Moreover,the critical load based on eigenvalue buckling is caculated,and the relation between strength length and increasing modulus of critical load is obtained.The result of engineering application shows that the method proposed in this paper is practicable.