阆中市嘉陵江三桥主桥设计及计算

Design and Calculation of Main Bridge for Jialing River Bridge III in Langzhong City

以阆中市嘉陵江三桥主桥为工程背景,详细介绍了这座预应力混凝土连续刚构桥的设计,并采用桥梁静力计算程序QJX对其进行了计算分析,验算了该桥在正常使用极限状态和承载能力极限状态下的应力状态及变形情况。计算结果表明该桥具有足够的强度、刚度和抗裂性能,满足规范要求。

Taking the main bridge of Jialing River Bridge III in Langzhong City as the engineering background, the article introduces the design of this pre-stressed concrete continuous rigid frame bridge,calculates and analyzes this bridge by the bridge static calculation program QJX, and checks and calculates the stress state and deformation status of this bridge under the normal using limit condition and the carrying capacity limit condition. The calculation results show that this bridge has the sufficient strength, rigidity and crack resistance, and can satisfy the standards and requirements.