中文核心期刊
CSCD来源期刊
中国科技核心期刊
RCCSE中国核心学术期刊

重庆交通大学学报(自然科学版) ›› 2010, Vol. 29 ›› Issue (2): 174-176.

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新旧规范对预应力连续刚构桥线形影响分析

黄雅宁,周水兴,王艳,曹帅   

  1. 重庆交通大学土木建筑学院,重庆 400074
  • 收稿日期:2009-11-11 修回日期:2010-01-04 出版日期:2010-04-15 发布日期:2015-01-22
  • 作者简介:黄雅宁(1984—),女,河南濮阳人,硕士研究生,主要从事桥梁设计理论研究。E-mail:866250000@126.com。

Deck Layout Influence of Continuous Rigid-frame Bridge between Updated and Old Specification

HUANG Ya-ning,ZHOU Shui-xing,WANG Yan,CAO Shuai   

  1. School of Civil Engineering & Architecture,Chongqing Jiaotong University,Chongqing 400074,China
  • Received:2009-11-11 Revised:2010-01-04 Online:2010-04-15 Published:2015-01-22

摘要: 《公路钢筋混凝土及预应力混凝土桥涵设计规范》2004版在1985版的基础上做了较多修改。结合阿蓬江大 桥工程实例,对比分析了两版本规范在抗裂验算要求、徐变计算模式、刚度取值和预拱度计算公式的差别对连续刚 构桥线性的影响。结果表明,按照2004版规范设计验算的连续刚构桥,施工预拱度高,成桥下挠度小,桥面线性更 加美观、合理。

关键词: 连续刚构桥, 规范, 桥面线形, 预拱度

Abstract: “Design Specification of Highway Reinforced Concrete and Pre-stressed Concrete Bridges and Culverts”in 2004 edition changed a lot compared with that in 1985 edition. Taking A’Pengjiang Bridge with a (90m + 170 m + 90 m) continuous rigid-frame bridge as an example,some influence factors and characters were discussed about deflection of prestressed concrete continuous rigid-framed bridge due to different provisions between updated and old specification“Design Specification of Highway Reinforced Concrete and Pre-stressed Concrete Bridges and Culverts”issued in 2004 and 1985 separately. The results show that“2004 specification”modifications included crack resistance,calculation pattern of creep and structural stiffness result in a lower deformation than“1985 specification ”. The long term growth factor to camber formula is introduced to camber,which leads to a more beautiful and reasonable deck layout.

Key words: continuous rigid-frame bridge, updated and old specification, deck layout, camber

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