摘要
首先通过分析跨座式单轨交通轨道梁桥的简支体系、简支变连续刚构体系和无应力连接连续刚构体系的技术特点,得出跨座式单轨交通梁桥结构特征;然后简化边界条件设计理想样本,采用定额法和市场调研方式测算理想样本的经济指标,以此建立理想样本库;接着根据工程建设经验提出理想模型的修正项及其对应的修正系数;最后以实际案例验证理想模型、修正项及修正系数的合理性。该研究可为跨座式单轨交通梁桥体系的方案选择和投资估算奠定基础。
The structural characteristics of bridge are obtained by analyzing the technical characteristics of the simple support beam system,the simple supported continuous rigid structure system and the stress free continuous rigid structure system of the straddle monorail transit rail transit bridge.The ideal sample is designed by simplifying the interface conditions,and the economic index of the ideal sample is calculated by the quota method and market survey method,so as to establish the ideal sample database.Based on the experience of engineering construction,this paper puts forward the amendment term of ideal model and its corresponding correction coefficient.Therefore the rationality of ideal model,correction term and correction coefficient are verified by practical cases.The research lays a foundation for the selection of the scheme and the investment estimation of the bridge system of straddle monorail transit.
出处
《现代城市轨道交通》
2021年第7期99-106,共8页
Modern Urban Transit
基金
中国博士后课题基金(229712)。
关键词
跨座式单轨交通
轨道梁
无应力连接
连续刚构结构
技术经济研究
修正系数
straddle monorail transit
track beam
non-stress connection
continuous rigid structure
technical and economic research
correction factor
