摘要
根据《公路钢筋混凝土及预应力混凝土桥涵设计规范》(JTG 3362-2018),通过手工及专业软件分别计算了40 m跨径后张法预应力混凝土小箱梁的跨中截面底缘正应力,比较了两者计算结果的差异,通过分析找出了差异产生的原因,并提出了解决办法。
According to Code for Design of Highway Reinforced Concrete and Prestressed Concrete Bridges and Culverts(JTG 3362-2018), the midspan hemline normal stress of 40 m-span post-tensioned prestressed concrete small box girder is calculated by hand and professional software respectively, and the difference between the two calculation results is compared. The causes of the difference are found out through analysis, and the solutions are put forward, which have certain reference value for engineering design.
作者
丁烽
罗宗保
DING Feng;LUO Zongbao
出处
《城市道桥与防洪》
2020年第7期252-255,262,M0023,共6页
Urban Roads Bridges & Flood Control
关键词
桥梁工程
小箱梁
后张法
应力
bridge engineering
small box girder
post tensioning method
stress
