A Study on Time Dependent Behavior of Cable-Socket Systems

电缆插座系统随时间变化的研究

• 批准号: 04452220
• 负责人: WATANABE Eiichi
• 金额: $ 2.43万
• 依托单位: KYOTO UNIVERSITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (B)
• 财政年份: 1992
• 资助国家: 日本
• 起止时间: 1992 至 1994
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-04452220/
• 关键词: Cable; Creep; Bond Strength; Zn-Cu Alloy; Slip-out; Socket; Size Effect; Multiple Cable Strands; 引き抜き耐力

It is essential for the design and maintenance of the cable-stayd bridges to know the long-term behavior due to the visco-elastic deformation of the cable strands, the cable sockets, the concrete members and the ground settelment at the supports. This research deals with the time-dependent behavior of cable strands and sockets, and a methodology to predict the long-term change of bridge geometry, particularly change of cable forces which is applied for construction management and maintenance after completion. First, the full-scale long-term tention tests of various cable systems are briefly reviewed and the visco-elastic deformation of the cable strands and sockets are summarized together with determination of viscoelastic constants. Secondly, the method to determine the visco elastic constants of cables and sockets either for short time prediction or long term prediction, and the finite element visco-elastic analysis together with the Laplace transformation are proposed for better prediction and general usage including several visco-elastic elements. Thirdly, the loading test for the bond-slip out behavior of cable strands from cable sockets, namely, Zinc-Copper poured socket, is carried out and its analytical prediction is made by the distinct element method.

由于电缆链的粘弹性变形，电缆插座，混凝土成员和地面定居在支撑板上，了解和维护有线桥桥的设计和维护必须知道长期行为。这项研究涉及电缆链和插座的时间依赖性行为，以及一种预测桥梁几何形状的长期变化的方法，尤其是电缆力的变化，该电缆力适用于完成后的施工管理和维护。首先，简要审查了各种电缆系统的全尺度长期调节测试，并将电缆链和插座的粘弹性变形汇总在一起，并确定粘弹性常数。其次，提出了确定电缆和插座的Visco弹性常数的短时预测或长期预测的方法，并提出了有限元visco弹性分析以及Laplace转换的方法，以更好地预测和一般用法，包括几种Visco弹性元素。第三，对电缆插座的电缆链的粘结性行为进行了加载测试，即锌 - 波波浇注的插座，并通过不同的元素方法进行分析预测。

项目成果

狩野,正人: "斜張橋のクリープ・リラクセーション挙動とその予測" 鋼構造論文集. 1. 79-90 (1994)

Kano, Masato：“斜拉桥的蠕变松弛行为及其预测”《钢结构杂志》1. 79-90 (1994)。

Kanou, M.: "Crrep-Relaxation Behavior of Cable-Stayd Bridges and its Predicfion" Steel Construction Engineering. Vol.1, No.3. (1994)

Kanou, M.：“斜拉桥的Crrep-松弛行为及其预测”钢结构工程。

渡邊英一: "鋼素線-亜鉛銅合金の付着特性に及ぼす側方拘束力の影響" 鋼構造年次報告論文集. 2. 479-487 (1994)

Eiichi Watanabe：“横向约束力对钢丝-锌-铜合金粘合性能的影响”钢结构年度报告论文集 2. 479-487 (1994)。

狩野正人: "斜張橋のクリープ・リラクセーション挙動とその予測" 鋼構造論文集. 1. 79-90 (1994)

Masato Kano：“斜拉桥的蠕变松弛行为及其预测”《钢结构杂志》1. 79-90 (1994)。

邊英一: "鋼素線-亜鉛銅合金の付着特性に及ぼす側方拘束力の影響" 鋼構造年次論文報告集. 2. 479-487 (1994)

Eiichi Bebe：“横向约束力对钢丝-锌铜合金粘合性能的影响”钢结构年报2. 479-487（1994）。