摘要
本文对预应力混凝土 T形梁桥动力分析建模方法进行了详细研究。将桥梁划分为梁段单元 ,考虑 T形梁的弯曲、自由扭转、约束扭转变形以及桥梁局部构件 (如横隔板等 )的作用 ,由能量原理建立结构的单元特性矩阵。实践应用表明 ,本文提出的方法使用方便 ,适合于计算机求解 ,是装配式预应力混凝土 T形梁桥结构动力分析的一种实用可靠的方法。
HT5SS]Detailed research on the method of founding a model for dynamic analysis of prestressed concrete T\|type beam is made in this paper. The bridge is scattered in beam\|segment elements, considering the flexural, free torsional, restraint torsional deformation of T\|type beam and the action of local member(exp. cross diaphragm plate, etc.) the element characteristic matrix of structure is established by the principle of energy. Applications in practice suggest that the method presented in this paper is convenient for applications and suitable for solution with computer as well, so it is a practical, reliable method for dynamic analysis of fabricated prestressed concrete T\|type beam structure.
出处
《计算力学学报》
CAS
CSCD
2000年第2期176-183,共8页
Chinese Journal of Computational Mechanics
基金
铁道部科研项目资助
关键词
T形梁桥
动力特性
建模
预应力混凝土
T\|type beam bridge
dynamic characteristic
found a model
