[1]历付.节段预制胶拼简支梁的构造和力学性能分析[J].高速铁路技术,2018,9(01):34-38.[doi:10.12098/j.issn.1674-8247.2018.01.008]
　LI Fu.Structure Details and Mechanical Property Analysis of Segmental Precast Simply Supported Girder Bridge with Epoxy Joint[J].HIGH SPEED RAILWAY TECHNOLOGY,2018,9(01):34-38.[doi:10.12098/j.issn.1674-8247.2018.01.008]
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节段预制胶拼简支梁的构造和力学性能分析()
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《高速铁路技术》[ISSN:1674-8247/CN:51-1730/U]

卷:
9卷
期数:
2018年01期
页码:
34-38
栏目:
出版日期:
2018-02-15

文章信息/Info

Title:
Structure Details and Mechanical Property Analysis of Segmental Precast Simply Supported Girder Bridge with Epoxy Joint
文章编号:
1674—8247(2018)01—0034—05
作者:
历付
中国铁路设计集团有限公司, 天津 300142
Author(s):
LI Fu
China Railway Design Corporation, Tianjin 300142, China
关键词:
城际铁路|胶接缝|预制节段拼接|剪力键
Keywords:
inter-city railway|epoxy joint|precast segment joint|shear key
分类号:
U441
DOI:
10.12098/j.issn.1674-8247.2018.01.008
文献标志码:
A
摘要:
文章以珠三角城际轨道交通工程为背景，对本工程23.5 m后张法预应力混凝土简支箱梁进行研究。介绍了本桥的节段划分、剪力键、预应力束布置等构造特点，研究了胶接缝节段预制拼接简支梁桥的力学特性。通过建立有限元模型，选取支座、支座附近胶接缝、跨中截面为控制截面，对结构强度和运营阶段受力状态进行计算。计算结果表明，结构的强度安全系数、抗裂安全系数、正截面应力、结构变形等均满足铁路规范要求。
Abstract:
Based on the inter-city rail transit of Pearl River Delta, a 23. 5 m post tension concrete simply supported box girder of the project is analyzed. Segmental division, shear key and prestressing tendons layout are introduced, and the mechanical characteristics of segmental precast simply supported girder bridge with epoxy joint are studied. By building finite element models, selecting support, epoxy joint near support and setting mid-span section as control section, strength of the structure and the stress state are calculated. The results show that the safety factor of strength, safety factor of crack-resistance, cross-section stress and the structure deformation all meet the railway code requirement.

备注/Memo

备注/Memo:
作者简介：：历付（1981-），男，高级工程师。 引文格式：历付. 节段预制胶拼简支梁的构造和力学性能分析[J].高速铁路技术,2018,9(1)：34-38. LI Fu. Structure Details and Mechanical Property Analysis of Segmental Precast Simply Supported Girder Bridge with Epoxy Joint[J]. High Speed Railway Technology,2018,9(1)：34-38.
更新日期/Last Update: 2018-02-28