A New Type of Plate-Beam Spline Strip Elements

Journal of Chongqing Jiaotong University(Natural Science) ›› 1991, Vol. 10 ›› Issue (4): 1-14.

A New Type of Plate-Beam Spline Strip Elements

Liu Zhong

Bridge and Structure Engineering Department

Received:1991-03-26 Online:1991-08-26 Published:2016-11-09

样条有限条板梁结合单元

刘忠

结构工程系

作者简介:刘忠,男,28岁,助教。

Abstract

Abstract: In this paper, applying the principle of stationary potential, the author developed a plate-beam spline element, worked out the stiffness matrix and load matrix, and programmed this method. It is found that this spline strip method is more efficent in the analysis of T-beams, spline girder and other bridges.

Key words: spline strip, folded plates and beams, box girder, spline girder

摘要： 本文采用最小势能原理,推导纵向用B₃样条函数表示的折板与梁条结合单元的刚度矩阵、荷载向量,并在计算机上实现了其分析过程。这种单元比简单的折板条单元更适合于T梁、脊骨梁、箱梁等桥梁结构的内力分析。

关键词: 样条有限条, 折板及梁条, 箱梁

Liu Zhong. A New Type of Plate-Beam Spline Strip Elements[J]. Journal of Chongqing Jiaotong University(Natural Science), 1991, 10(4): 1-14.

刘忠. 样条有限条板梁结合单元[J]. 重庆交通大学学报（自然科学版）, 1991, 10(4): 1-14.

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