叠拱 meaning in Chinese

laminated arch

This paper presents the structural design of the main bridge of lhasa river bridge , makes a deep - going study of the key techniques for design of the bridge , such as the reasonable span length ratio of each span of the 5 - span girder and arch hybrid structure , mechanical behaviour of the dual arch ribs , and section of the continuous girder tie beam , and also works out rigidity and stress conditions of the continuous girder tie beam and stress conditions of the concrete - filled steel tube arches of the main bridge
摘要介绍了拉萨河特大桥主桥结构设计情况，对于五跨梁拱组合桥梁各孔跨合理的跨度比、叠拱的受力行为及连续梁系杆截面形式等设计中的关键性问题进行了深入的研究，给出了主桥连续梁系杆的刚度和应力情况、钢管混凝土拱的应力情况。