Highly seismic-resistant new type bridge taking advantage ofgeosynthetic-reinoforced soil

利用土工合成材料加筋土的高抗震新型桥梁

• 批准号: 20360215
• 负责人: TATSUOKA Fumio
• 金额: $ 11.81万
• 依托单位: Tokyo University of Science
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2008
• 资助国家: 日本
• 起止时间: 2008 至 2010
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-20360215/
• 关键词: 新形式一体橋梁; ジオシンセティックス補強盛土; 地震時安定性; 振動台実験; 模型実験; 橋桁の温度伸縮; 盛土の受働土圧; 盛土の主働崩壊

The conventional type bridge, which comprises a girder supported with a pair of cantilever-type abutments via shoes and unreinforced backfill, tends to be massive while the seismic stability is relative low and the long-term maintenance cost is relatively high. To alleviate these problems, a new type bridge (called GRS integral bridge) is proposed. The new type bridge comprises a continuous girder integrated to a pair of abutments without using shoes while the backfill is reinforced with a geosynthetic reinforcement connected to the abutment. By performing a series of model static and dynamic loading tests and numerical analysis, it is confirmed that this new type bridge is much more cost-effective exhibiting substantially higher seismic stability, long-term higher performance and higher constructability than the conventional type bridge.

传统型桥梁由一对悬臂式桥台通过鞋和无筋回填土支撑的梁体较大，但抗震稳定性较低，长期维护成本较高。为了缓解这些问题，提出了一种新型桥梁（称为GRS整体桥）。新型桥梁包括一根连续梁，无需使用鞋子即可集成到一对桥台上，而回填土则通过连接到桥台的土工合成材料进行加固。通过进行一系列模型静、动荷载试验和数值分析，证实这种新型桥梁比传统桥梁具有更高的抗震稳定性、长期性能和可施工性，具有更高的成本效益。

项目成果

Strain Energy-based elasto viscoplastic constitutive modeling of sand for numerical analysis

用于数值分析的基于应变能的砂弹粘塑性本构模型

• 发表时间: 2009
• 期刊: Soils and Foundations 49
• 作者: Peng;Fang-Le;Siddiquee;M.S.A.;Tatsuoka;F.;Yasin;S.J.M.;Tanaka;T.
• 通讯作者: T.

GRS一体橋梁の特徴と開発経緯

GRS综合桥梁的特点及发展历史

• 发表时间: 2009
• 期刊: Geosyntethics Engineering Journal, IGS Japanese Chapter 16巻
• 作者: 龍岡文夫;舘山勝;平川大貴;渡辺健治;清田隆
• 通讯作者: 清田隆

GRS-体橋梁の特徴と開発経緯

GRS车身桥的特点及发展历史

• 发表时间: 2009
• 作者: 龍岡文夫;舘山勝;平川大貴;渡辺健治;清田隆
• 通讯作者: 清田隆

Recent practice and research of geosynthetic-reinforced earth structuresin Japan

日本土工合成材料加筋土结构的最新实践与研究

• 发表时间: 2008
• 期刊: Journal of GeoEngineering 3
• 作者: Tatsuoka;F.
• 通讯作者: F.

Closure to Discussion on "A new type of integral bridge comprising geosynthetic-reinforced soil walls

“新型土工合成材料加筋土墙整体桥梁”讨论结束

• 发表时间: 2010
• 期刊: Gesynthtetics International 17巻
• 作者: Tatsuoka F.;Hirakawa D.;Nojiri M.;Aizawa H.;Nishikiori H.;Soma R.;Tateyama M.;Watanabe K.
• 通讯作者: Watanabe K.