| 1. | Design of rigid frame arch bridge and truss arch bridge and analysis of characteristics of the weight - bearing 刚架拱桥及桁架拱桥的设计与受力特征分析 |
| 2. | Abstract : the paper introduces the application of rigid frame arch bridge and truss arch bridge in fuyang city and their types , structures , designs as well as analysis of characteristics of the weight bearing 摘要:介绍了刚架拱桥及桁架拱桥在阜阳市的应用及其型式、构造、设计和受力特征分析。 |
| 3. | When qr - method is used to analyzing the long - span cfst arch bridges , the result show that this method is not only computed simply but also high accuracy and has better convergence performance , so it is a effective and economic new method 计算结果表明,利用qr法分析大跨度钢管混凝土桁架拱桥静力和动力问题,不仅计算简便,而且精度高,收敛性好,是一种经济有效的新方法。 |
| 4. | Because it is simple to make manufacture slab with slightly curved bottom , and is economical to use steel , and is relatively great in aspect of load bearing potential capacity , the slab often has been used as braced arch and rigid - frame arch bridges " deck slab in 1970s and 1980s 由于微弯板具有制作简单、用钢量省、承载潜力较大的优点,因而上世纪七、八十年代,在刚架拱桥、桁架拱桥中常用作桥面板。 |
| 5. | The cable - supported concrete - filled steel tube arch bridge is a new bridge type developed on the basis of the truss type hybrid arch bridge by combining various techniques and making full advantages of the concrete - filled steel tube arch bridge , truss arch bridge and cable - stayed bridge 摘要钢管混凝土拉索拱桥是在“桁式组合拱桥”的基础上将钢管混凝土拱桥、桁架拱桥、斜拉桥的技术特点综合起来,扬长避短,而构思出的一种新桥型。 |
| 6. | To investigate the practical stability performance of this bridge , a model test is carried out . the test model actually simulates nan pu bridge based on similarity criterion . the model test reveals that the stability factors is more than 2 . 0 , so the stability and strength of this bridge have been verified to be met with 该模型试验首创了“杆对杆”刚度等效法,应用于钢管混凝土桁架拱桥的模型设计和制作中,其研究成果对南浦大桥实桥的施工以及竣工后的运行有重要的应用价值,并对今后钢管混凝土桁式拱桥的试验研究、设计、施工具有重要的指导意义。 |
| 7. | Three factors of carrying capacity , shippmg , traffic flux are considered among alteration and upgrade . carrying capacity upgrade aims at simply - supported girder bridge and arc bridge ( truss bridge and double arch bridge ) of sea - route nets . to navigation , headroom chiefly is required , secondlythe jacking - up technique and economical analysis are given attention to two or morethings . the simply - supported grider bridge and mono - arch bridge are touched upon in navigation upgrade 在升级改造中主要探讨了承载力升级、通航升级、交通流量升级三个因素。其中承载力升级主要针对航道网上的简支梁桥和拱桥(桁架拱桥和双曲拱桥) 。 |
| 8. | In this paper , firstly , the recent condition and perspective , the types of structures , construction technology , the design method of the fast developing concrete - filled steel tube arch bridge are introduced , and the mechanics performance and uniform theory and the application in practical engineering of cfst 本文首先简单介绍了现在发展迅猛的钢管混凝土桁架拱桥的发展现状和前景、结构形式、钢管混凝土的力学性能和统一理论、施工技术和设计方法以及在工程实际中的应用,然后介绍作者的研究工作。 |
| 9. | In order to study the practical stability performance of chunan nanpu bridge , a total bridge model test was carried through . the design method of " spar to spar " modeling method was firstly introduced in this test . the test results are significant for construction and management of chunan nanpu bridge ; excessively , the test results are significant for design and construction of large span cfst arch bridge also 该模型试验首创了“杆对杆”刚度等效法,应用于钢管混凝土桁架拱桥的模型设计和制作中,其研究成果对南浦大桥实桥的施工以及竣工后的运行有重要的应用价值,并对今后钢管混凝土桁式拱桥的试验研究(特别是模型制作) 、设计、施工具有重要的指导意义。 |
| 10. | Wan zhou yangtze river bridge is the establishing large span steel truss bridge now , and the property of it is the lower stiffness of the main girder . when the speed is high , the analyses and the vibration control of vehicles and bridge are very important , especially the dynamic lateral response of the system 万州长江大桥是目前在建的大跨度钢桁架拱桥,其特点是主梁结构刚度较小,在高速行车速度下,对起车桥耦合振动分析及其控制尤其是车桥系统横向动力响应研究则尤为重要。 |