Development of Aluminum Decks Using Friction Stir Welding

使用搅拌摩擦焊开发铝盖板

基本信息

  • 批准号:
    15360241
  • 负责人:
  • 金额:
    $ 7.68万
  • 依托单位:
  • 依托单位国家:
    日本
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
  • 财政年份:
    2003
  • 资助国家:
    日本
  • 起止时间:
    2003 至 2004
  • 项目状态:
    已结题

项目摘要

Since the aluminum deck that had been developed using the Friction Stir Welding(FSW), consisted of closed sections, it was impossible to examine visually the back surface of the FSW-joints. In this research, an aluminum deck of open-closed sections was newly designed, where conducting FSW on the open sections made the visual inspection of the back surface of the FSW-joints possible.The extrusions where overhangs were provided on both sides of the top flange of the closed section were designed. The ends of the overhangs of the extrusions were butted, and FSW was done there. The steel girders were fabricated at the limiting value of the web slenderness ratio when no horizontal stiffeners are provided. Three steel stud shear connectors were welded to the top flange of the steel girders in one row in the bridge-transverse direction. A form work was laid surrounding the studs to leave the supporting mortar between the top flange of the steel girders and the bottom flange of the aluminum ext … More rusion. The studs were inserted inside the extrusion through a rectangular cutting on the bottom flange. The non-shrinkable mortar was filled through the hole on the top flange of the extrusions. Statically loading tests of the aluminum deck laid on the steel girders were carried out.The friction-type high-strength steel bolts were used for the on-site connections of the aluminum decks. To secure the friction on the surface of the aluminum members, the tensile tests of the specimens where the roughness was controlled were carried out, and the relation between the roughness of the aluminum members and the coefficient of friction was given. The on-site connections were fabricated for both of the sides and the ends of the aluminum decks, to confirm the ultimate strength and fatigue strength.When connecting aluminum decks to steel girders, since the coefficients of thermal expansion are twice as different between aluminum and steel, there may be a possibility that the stress which can not be ignored is produced in the aluminum decks according to the temperature change. Therefore, the degree of the composite action between the aluminum decks and the steel girders must be clarified. For this, the composite girders of the aluminum decks and the steel girders were fabricated. Less
由于使用搅拌摩擦焊(FSW)开发的铝甲板由封闭的部分组成,因此不可能直观地检查FSW接头的背面。在本研究中,设计了一种新的铝制开闭式截面甲板,在开口截面上进行搅拌摩擦焊,可以直观地检测搅拌摩擦焊接接头的后表面,并设计了在封闭截面顶部凸缘两侧设置悬臂的挤压件。挤压的突出端是对接的,并在那里进行FSW。在没有设置水平加劲肋的情况下,按腹板长细比的限值制造钢梁。三个钢柱剪力连接件沿桥梁横向一排焊接在钢梁的上翼缘上。在立柱周围铺设了模板,以在钢梁的顶部翼缘和铝制Ext…的底部翼缘之间留下支撑砂浆更多的生锈。螺柱通过底部凸缘上的矩形切割插入挤压内部。非收缩砂浆通过挤压件顶部凸缘上的孔填充。对钢梁上铺设的铝桥面进行了静载试验,铝桥面的现场连接采用了摩擦型高强度钢螺栓。为了保证铝构件表面的摩擦,对控制粗糙度的试件进行了拉伸试验,给出了铝构件表面粗糙度与摩擦系数之间的关系。在铝桥面与钢梁连接时,由于铝桥面的热膨胀系数与钢材的热膨胀系数相差一倍,根据温度的变化,有可能在铝桥面产生不可忽略的应力。因此,必须明确铝桥面与钢梁之间的组合作用程度。为此,制作了铝桥面与钢梁的组合梁。较少

项目成果

期刊论文数量(32)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Static and fatigue behavior of the connections of aluminum decks to steel girders
铝桥面板与钢梁连接的静态和疲劳性能
Structural behavior of aluminum deck of open-closed sections
开闭截面铝甲板的结构性能
大倉一郎, 萩澤亘保, 岡田理: "Static and fatigue behavior of the connections of aluminum decks to Steel girders"19^<th> US-Japan Bridge Engineering Workshop, Tsukuba, Japan. Vol.19. 105-116 (2003)
Ichiro Okura、Nobuyasu Hagisawa、Osamu Okada:“铝桥面板与钢梁连接的静态和疲劳行为”19^<th>美日桥梁工程研讨会,日本筑波第 105-116 卷。
  • DOI:
  • 发表时间:
  • 期刊:
  • 影响因子:
    0
  • 作者:
  • 通讯作者:
Design and structural behavior of aluminum deck of open-close sections
开合型材铝盖板设计及结构性能
開閉断面のアルミニウム床版の開発
开闭断面铝楼板的研制
  • DOI:
  • 发表时间:
    2005
  • 期刊:
  • 影响因子:
    0
  • 作者:
    大倉一郎;岡田理;萩澤亘保;大澤章吾
  • 通讯作者:
    大澤章吾
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OKURA Ichiro其他文献

OKURA Ichiro的其他文献

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{{ truncateString('OKURA Ichiro', 18)}}的其他基金

REALIZATION OF LIGHTWEIGHT BRIDGES BY ALUMINUM DECKS
通过铝桥面板实现轻型桥梁
  • 批准号:
    19360202
  • 财政年份:
    2007
  • 资助金额:
    $ 7.68万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
Photoinduced hydrogen evolution based on biological reaction
基于生物反应的光致析氢
  • 批准号:
    18360386
  • 财政年份:
    2006
  • 资助金额:
    $ 7.68万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
Influence of imperfections on ultimate strength of girders
缺陷对梁极限强度的影响
  • 批准号:
    13650521
  • 财政年份:
    2001
  • 资助金额:
    $ 7.68万
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
Preparation of metallo porpyrins and photoinducued electron transfer from porphyrins to biointerface
金属卟啉的制备以及从卟啉到生物界面的光诱导电子转移
  • 批准号:
    14050035
  • 财政年份:
    2001
  • 资助金额:
    $ 7.68万
  • 项目类别:
    Grant-in-Aid for Scientific Research on Priority Areas
Bioprocess methanol production from methane.
利用甲烷进行生物工艺生产甲醇。
  • 批准号:
    08455373
  • 财政年份:
    1996
  • 资助金额:
    $ 7.68万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
Production of methanol from methane using Methanotroph
使用甲烷氧化菌从甲烷生产甲醇
  • 批准号:
    08555203
  • 财政年份:
    1996
  • 资助金额:
    $ 7.68万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
Photoinduced hydrogen evolution with highly functional photocatalyst
高功能光催化剂光诱导析氢
  • 批准号:
    06453100
  • 财政年份:
    1994
  • 资助金额:
    $ 7.68万
  • 项目类别:
    Grant-in-Aid for General Scientific Research (B)
Joint Study on the Development of New PDT Photosensitizers
新型PDT光敏剂开发联合研究
  • 批准号:
    04044065
  • 财政年份:
    1992
  • 资助金额:
    $ 7.68万
  • 项目类别:
    Grant-in-Aid for international Scientific Research
The purification of thermostable enzymes from a thermophilic hydrogen oxidizing bacterium and the development of a energy conversion system with those enzymes
从嗜热氢氧化细菌中纯化热稳定性酶并利用这些酶开发能量转换系统
  • 批准号:
    03453084
  • 财政年份:
    1991
  • 资助金额:
    $ 7.68万
  • 项目类别:
    Grant-in-Aid for General Scientific Research (B)
Synthesis of ViologenーLinked Porphyrins and Photoinduced Hydrogen Evolution with These Porphyrins
紫罗碱连接的卟啉的合成以及这些卟啉的光致析氢
  • 批准号:
    01550614
  • 财政年份:
    1989
  • 资助金额:
    $ 7.68万
  • 项目类别:
    Grant-in-Aid for General Scientific Research (C)

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通过 X 射线透射成像实现异种材料搅拌摩擦焊中的三维材料流动可视化
  • 批准号:
    24K17532
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钢结构疲劳裂纹预防和搅拌摩擦焊防腐蚀研究进展
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    22H01577
  • 财政年份:
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用于制造集成结构件的金属和陶瓷的搅拌摩擦焊
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通过更准确地测量工具和工件之间的传热来改进搅拌摩擦焊的建模预测
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    1935767
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