Establishment of Analytical Methodology for Mechanical,Characteristics of Steel-Concrete Hybrid Structures

钢-混凝土混合结构力学、特性分析方法的建立

• 批准号: 11450169
• 负责人: MACHIDA Atsuhiko
• 金额: $ 5.31万
• 依托单位: Saitama University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 1999
• 资助国家: 日本
• 起止时间: 1999 至 2001
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-11450169/
• 关键词: FEM Aanalysis; Strain Softening; Mohr-Coulomb Criterion; Bonding Element; Slip; Exfoliation; Strut and Tie Model; 穴あき鋼板; せん断力; 分散ひび割れモデル; 鋼材とコンクリートの付着特性; 側圧; かぶり; 摩擦係数; スタッドジベル; 梁要素

(1) A FEM program was developed to analyze the mechanical behavior of hybrid structures in which steel girders are rigidly connected to RC pier. In this program, concrete was assumed as homogeneous material, and Mohr-Coulomb's failure criterion was adopted considering strain softening. In order to treat bonding phenomena between concrete and reinforcing bar or steel plate rigorously, bonding elements were developed based on the previously proposed models and incorporated into the program. In particular, the bonding element between concrete and steel plate can express slip and exfoliation phenomena. The developed program can be applied to composite structures in general.(2) Comparison of analysis with experimental results showed that the developed program can trace the behavior accurately up to large deformation region.(3) Analysis on the hybrid structures of actual scale showed that, unless some special measures are taken, most of the load from super structure is transferred to the connection and its vicinity, hardly distributing to the lateral direction.(4) A strut and tie model, which can analyze the behavior more simply and can be used as design tool, was developed based on the analysis.

(1)编制了钢梁与钢筋混凝土桥墩刚性连接的混合结构受力分析程序。在程序中，混凝土被假定为均匀材料，并采用莫尔-库仑破坏准则考虑应变软化。为了严格处理混凝土与钢筋或钢板之间的粘结现象，粘结单元被开发的基础上提出的模型，并纳入程序。特别是混凝土与钢板之间的粘结单元可以表达滑移和剥离现象。所开发的程序可应用于一般的复合材料结构。(2)分析与实验结果的比较表明，所开发的程序可以准确地跟踪行为的大变形区域。(3)对实际比例混合结构的分析表明，若不采取特殊措施，上部结构的荷载大部分传递到连接处及其附近，几乎不发生侧向分布。(4)在此基础上，建立了压杆-拉杆模型，该模型能更简单地分析结构的受力性能，并可作为结构设计的工具。

项目成果

Chakree Bamrungwong: "Finite Element analysis of steel Girder Concrete Pier Composite Connection with Application of Interface Element."Konkuriito kougaku nenji ronbun houkoku shuu. Vol. 23-1. 763-768 (2001)

Chakree Bamrungwong：“钢梁混凝土桥墩组合连接的有限元分析与界面元素的应用。”Konkuriito kougaku nenji ronbun houkoku shuu。

Charkree Bamrungwong: "Finite Element analysis ofsteel Girder-Concrete Pier Composite Connection with Application of Interface Element"コンクリート工学年次論文報告集. Vol.23(発表予定). (2001)

Charkree Bamrungwong：“钢梁-混凝土桥墩组合连接的有限元分析与界面单元的应用”混凝土工程年度论文报告第 23 卷（待提交）。

Chakree Bamrungwong: "Finite Element analysis of steel girder-concrete pier rigid connection"コンクリート工学年次論文報告集. Vol.22-3. 997-1002 (2000)

Chakree Bamrungwong：“钢梁-混凝土桥墩刚性连接的有限元分析”混凝土工程年论文集第22-3卷（2000年）。

Chakree Bamrungwong: "Finite Element Analysis of Steel Girder Concrete Pier Rigid Connection"コンクリート工学年次論文報告集. Vol.22(発表予定). (2000)

Chakree Bamrungwong：“钢梁混凝土桥墩刚性连接的有限元分析”混凝土工程年度论文集第 22 卷（即将出版）。

石澤 徹: "鋼材とRC橋脚を剛結した複合ラーメン橋接合部の力学特性に関する研究"土木学会論文報告集. (発表予定). (2001)

Toru Ishizawa：“具有刚性连接的钢和 RC 桥墩的复合刚性框架桥梁接头的机械性能研究”日本土木工程师学会会议记录（预定报告）（2001 年）。