为研究内置式橡胶阻尼器对钢绞线斜拉索的减振效果,文章通过长168.25 m的拉索减振试验,对内置式橡胶阻尼器的减振性能进行研究分析.试验结果表明:在拉索长2％的位置安装内置式阻尼器后,一阶和二阶平均振动对数衰减率为1.53％和1.57％,对拉索的振动具有抑制作用;通过梁端和塔端阻尼器减振效果的线性叠加,结合外护套双螺旋线气动措施,可满足主跨在300 m以下钢绞线斜拉桥的拉索振动控制需求.

PDF HTML XML Export Cite reminder Research on the application of OVM250 steel strand cable on the world's first high bridge DOI: 10.59238/j.pt.2017.05.006 Author: Affiliation: (Liuzhou OVM Machinery Co., Ltd., Liuzhou 545006,China) Clc Number: TU767.6 Fund Project: Article | Figures | Metrics | Reference | Related | Cited by | Materials | Comments Abstract:Based on the actual situation of Beipanjiang Bridge, the paper introduces the successful application of OVM250 steel strand cable system on Bepanjiang Bridge, the world's first high bridge, from the aspects of cable characteristics, cable structure and anchor element analysis. It is proved that OVM250 steel stranding cable "breaking the whole into pieces" can solve the limited problems caused by inconvenient traffic and harsh environment, and has the advantages of no large cable making, transportation, lifting and tension traction equipment and excellent overall protection performance. Reference Related Cited by

PDF HTML XML Export Cite reminder Research on fatigue test of cable-stayed steel strand with large hole position DOI: 10.59238/j.pt.2015.04.004 Author: Affiliation: (Liuzhou OVM Machinery Co., Ltd., Liuzhou 545005,China) Clc Number: TG115.57 Fund Project: Article | Figures | Metrics | Reference | Related | Cited by | Materials | Comments Abstract:In order to adapt to the reality and demand of high bearing capacity of modern long-span bridge, the cable must be crossed to the super-large hole position. Overem has been committed to the research of the cable system of steel strand, based on the international code as the design basis, according to the code and engineering design requirements, the fatigue test of the cable component of the OVM250 ultra-large hole cable system fatigue stress range meets and exceeds the requirements of the international code, the test results show that the OVM250 ultra-large hole cable fatigue The performance reaches the international advanced level. Reference Related Cited by

PDF HTML XML Export Cite reminder Research on related standards and specifications of cable system DOI: 10.59238/j.pt.2013.02.003 Author: Affiliation: (Liuzhou OVM Machinery Co., Ltd., Liuzhou 545005,China) Clc Number: TU111.191 Fund Project: Article | Figures | Metrics | Reference | Related | Cited by | Materials | Comments Abstract:Based on the research of domestic and international standards and codes of cable system, the commonness and difference of these standards and codes are studied from the aspects of fatigue performance of cable body base material, fatigue performance and watertight performance of prestressed tendon-cable anchor assembly. Based on the comparison of the performance requirements of the cable system and the interpretation of the anti-corrosion requirements of the cable system in the international standard, the gap between the Chinese standard and the international standard is found out. Based on the design, manufacture, inspection, installation and maintenance of the cable system, the rationality and operability of the relevant provisions in each specification are analyzed, and some thoughts on the implementation or revision of these standards are put forward. Reference Related Cited by

PDF HTML XML Export Cite reminder Study on anti-corrosion properties of OVM250 steel strand cable-stayed cable DOI: 10.59238/j.pt.2013.01.003 Author: Affiliation: (Liuzhou OVM Machinery Co., Ltd., Liuzhou 545005,China) Clc Number: TU111.191 Fund Project: Article | Figures | Metrics | Reference | Related | Cited by | Materials | Comments Abstract:In order to improve the durability of the cable, combined with the experience of product development and engineering application, the anticorrosion requirements of the cable system were put forward according to the fib2005, PTI2007 and CIP2002 international standard for the cable system, including the anticorrosion structure of the cable body and the cable anchor The sealing structure and watertight performance, surface anticorrosion of cable anchors and other links are studied, and the protection treatment in the construction and operation of the cable is required to ensure that the OVM250 steel strand cable system meets the requirements of the specification and the expectation of the service life of the project. Reference Related Cited by

PDF HTML XML Export Cite reminder Reliability study of OVM250 steel strand cable-stayed anchorage system DOI: 10.59238/j.pt.2013.05.001 Author: Affiliation: (Liuzhou OVM Machinery Co., Ltd., Liuzhou 545005,China) Clc Number: U448.25 Fund Project: Article | Figures | Metrics | Reference | Related | Cited by | Materials | Comments Abstract:With the development of modern long-span cable-stayed Bridges, the on-site cable-stayed cable of steel strand has been more and more favored by designers because of its advantages such as no need for large cable-making, transportation, hoisting and tension traction equipment, and superior overall protective performance of the cable. As a load-bearing component of cable-stayed bridge, the steel strand cable-stayed cable is called the life cable of cable-stayed bridge, and its reliability is one of the key factors to determine the safety and reliability of cable-stayed bridge. This paper mainly introduces the reliability research of cable anchoring system in the process of design and improvement of OVM250 steel strand cable system. Through the design means of effectively improving the fatigue performance of cable anchoring assembly, the optimal design of cable anchoring unit is carried out to ensure the safety and reliability of cable anchoring assembly. The fatigue test of OVM250-139 cable anchoring assembly is further conducted The excellent fatigue resistance of OVM250 steel strand cable system was verified. Reference Related Cited by

通过对国内和国际通用的拉索体系标准及规范进行研究,从对拉索索体母材的疲劳性能、预应力筋——拉索锚具组件的疲劳性能和水密性能所提出的试验条件等方面进行比较,研究各标准及规范的共性与差异性。从各标准及规范对拉索体系各项性能要求的比较,及国际斜拉索规范对拉索防腐体系要求的解读,找出我国在斜拉索标准与国际规范的差距。结合拉索体系的设计、制造、检验、安装及维护对各规范中相关条款的合理性及可操作性进行分析,对这些标准的执行或修订提出一些思考。

随着现代大跨度斜拉桥的发展,钢绞线斜拉索采用现场制索,具有无需大型制索、运输、吊装和张拉牵引设备、拉索的整体防护性能优越等优势,已越来越受到设计者的青睐。钢绞线斜拉索作为斜拉桥的承重构件,堪称斜拉桥的生命索,其可靠性是决定斜拉桥安全可靠的关键因素之一。文章主要介绍了OVM250钢绞线斜拉索体系设计改进过程中对拉索锚固系统的可靠性研究,通过有效提高拉索锚具组件的疲劳性能的设计手段,对拉索锚固单元进行优化设计,保证拉索锚具组件的安全可靠,通过OVM250-139拉索锚具组件的疲劳试验,进一步验证了OVM250钢绞线拉索体系优异的抗疲劳性能。

主要介绍了OVM250钢绞线斜拉索的结构及防腐特点,为了提高钢绞线斜拉索的耐久性,结合产品开发及工程应用经验,根据fib2005、PTI2007和CIP2002等国际上通行的斜拉索规范对斜拉索体系提出的防腐要求,从拉索索体防腐结构、拉索锚具的密封结构及水密性能、拉索锚具表面防腐等的各个环节着手进行防腐性能研究,并对斜拉索施工及运营中的防护处理提出要求,以确保OVM250钢绞线斜拉索体系全方面满足规范要求及工程使用寿命的期望。

本文介绍了OVM250无粘结型平行钢绞线拉索体系的结构及特点,以及OVM250-31拉索锚具在美国CTL实验室进行的疲劳试验情况。

结合斜拉桥技术发展,系统地阐述了OVM 250型拉索体系的结构设计和技术性能,并通过工程实践编制了OVM 250钢绞线斜拉索的施工工艺。

PDF HTML XML Export Cite reminder Fatigue Test Study on OVM250 Unbonded Steel Strand Cable System DOI: 10.59238/j.pt.2007.05.006 Author: Affiliation: Clc Number: U448.273.3 Fund Project: Article | Figures | Metrics | Reference | Related | Cited by | Materials | Comments Abstract:This paper describes the structure and characteristics of the OVM250 unbonded parallel strand tie system, and the fatigue tests of the OVM250-31 tie anchorage conducted in the CTL laboratory in the United States. Reference Related Cited by

PDF HTML XML Export Cite reminder Experimental study on single cable replacement of OVM250 parallel strand cable DOI: 10.59238/j.pt.2005.05.004 Author: Affiliation: (Liuzhou OVM Machinery Co., Ltd., Liuzhou 545005,China) Clc Number: U448.273.3;U448.27 Fund Project: Article | Figures | Metrics | Reference | Related | Cited by | Materials | Comments Abstract:According to the design and construction requirements of Puli Tunnel and Ailan Exchange Road in Nantou Section of Taiwan National Highway No. 6 C608 standard (hereinafter referred to as Taiwan C608 cable-stayed Bridge), a new construction method of OVM250 parallel strand cable cable single cable change is introduced in this paper It is to replace the entire unbonded steel strand that needs to be replaced (together with the PE sheath). When the steel strand in the unbonded steel strand is extracted in the process of steel strand replacement, the new steel strand is also brought into the original unbonded PE sheath, and the original unbonded PE sheath is still retained, which greatly simplifies the steel strand replacement process. Reference Related Cited by