变截面箱梁的负剪力滞

重庆交通大学学报（自然科学版） ›› 1997, Vol. 16 ›› Issue (3): 18-25.

变截面箱梁的负剪力滞

罗旗帜¹, 俞建立²

1. 广东佛山:佛山大学 528000;
2. 广东佛山市公路局 528000

收稿日期:1996-08-27 修回日期:1996-12-18 出版日期:1997-06-23 发布日期:2016-11-14
作者简介:罗旗帜,男,1955年生,副教授

Negative Shear Lag in Box Girder with Varying Depth

Luo Qizhi¹, Yu Jianli²

1. Foshan University, Guangdong 528000;
2. Foshan Highway Bureau, Guangdong 528000

Received:1996-08-27 Revised:1996-12-18 Online:1997-06-23 Published:2016-11-14

摘要/Abstract

摘要： 应用考虑剪滞效应的有限段模型,对一般变截面箱梁的负剪力滞进行分析.探讨了变高度简支箱梁、悬臂箱梁的负剪力滞受梁高比、宽跨比以及荷载型式等因素变化的影响.获得了变截面箱梁负剪力滞的一般规律和初步结论,为负剪力滞计算提供了重要参考.

关键词: 变截面箱梁, 负剪力滞, 有限段法, 梁高比, 宽跨比

Abstract: A finite segment model has been established and applied to analyse the negative shear lag in box girder with varying depth.This paper discusses the influence of the main factors, including the girder-height ratio, the width to length ratio and any loading arrangement, on the negative shear lag in variable-depth simple-, cantilever-, and continuous box girders.The features of the negative shear lag phenomena are described and some important conclusions are drawn about calculating the negative shear lag for box girders with varying depth.

Key words: variable-depth box girder, negative shear lag, finite segment method, girderheight ratio, width to length ratio

罗旗帜, 俞建立. 变截面箱梁的负剪力滞[J]. 重庆交通大学学报（自然科学版）, 1997, 16(3): 18-25.

Luo Qizhi, Yu Jianli. Negative Shear Lag in Box Girder with Varying Depth[J]. Journal of Chongqing Jiaotong University(Natural Science), 1997, 16(3): 18-25.

[1]	陈强，孟阳君，周先雁. 大宽跨比桥梁横向分布系数的快速计算方法[J]. 重庆交通大学学报（自然科学版）, 2011, 30(6): 1287-1289.
[2]	张智洪. 关于高桩梁板式码头面板计算的探讨[J]. 重庆交通大学学报（自然科学版）, 1991, 10(4): 85-95.
[3]	项贻强. 箱形梁桥翼板的有效宽度及对规范的再建议[J]. 重庆交通大学学报（自然科学版）, 1990, 9(2): 29-37.