Study on Composite Action between Steel Girder and Lower Concrete Slab in Steel-Concrete Double Composite I-girder Bridge

钢-混凝土双组合工字梁桥钢梁与下部混凝土板的复合作用研究

• 批准号: 20760306
• 负责人: OHYAMA Osamu
• 金额: $ 1.33万
• 依托单位: Osaka Institute of Technology
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Young Scientists (B)
• 财政年份: 2008
• 资助国家: 日本
• 起止时间: 2008 至 2009
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-20760306/
• 关键词: 複合構造; 二重合成I桁橋; スタッド; 静的押抜き試験; 繰返し押抜き試験; 荷重分担率; 疲労押抜き試験; S-N曲線

Recently, in Japan, the steel-concrete composite bridge aiming at reducing construction cost and shortening work periods is extensively adopted. For instance, the steel-concrete double composite continuous box girder bridge, which has two concrete slabs at upper and lower surfaces of the steel box girder, is one of its examples. The structural system has the advantage of being able to reduce the steel lower flange thickness in the region of the intermediate supports. At the moment, the shop assembly cost of the box girder is more expensive than that of the Twin-I girder bridge. Therefore, the author had been proposed the steel-concrete double composite twin I-girder bridge.However, the composite action by adopting the headed studs welded both on the lower flange plate and web plate in double composite twin-I girder bridges is not yet clarified perfectly. In this research, the author carried out the static and fatigue push-out test for headed stud, which has combination arrangement both in horizontal and vertical directions.

近年来，在日本，以降低建设成本、缩短工期为目的的钢-混凝土组合桥梁得到广泛采用。例如，钢-混凝土双组合连续箱梁桥就是其例子之一，其钢箱梁的上、下表面有两块混凝土板。该结构系统的优点是能够减少中间支撑区域的钢制下翼缘厚度。目前，箱梁的车间组装成本比Twin-I梁桥的成本更高。为此，笔者提出了钢-混凝土双组合双工字梁桥。但目前双组合双工字梁桥采用下翼缘板和腹板均焊接有头螺柱的复合作用尚未见报道。完美地澄清了。本研究中，作者对水平和垂直方向组合布置的带头螺柱进行了静态和疲劳推出试验。

项目成果

二重合成複合ラーメンI桁橋における下コンクリート床版の施工法と試設計

双组合刚构工字梁桥下部混凝土板施工方法及试验设计

• 发表时间: 2009
• 作者: 木部謙吾; 大山理; 大久保宣人; 栗田章光
• 通讯作者: 栗田章光

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二重合成複合ラーメンI桁橋における下コンクリート床版の施工法と試設計

双组合刚构工字梁桥下部混凝土板施工方法及试验设计

• 发表时间: 2009
• 作者: 木部謙吾; 大山理; 大久保宣人; 栗田章光
• 通讯作者: 栗田章光