Study on the load earring capability of pre-cracked R/C members

预裂钢筋混凝土构件承载能力研究

• 批准号: 11650479
• 负责人: TAMURA Takahiro
• 金额: $ 2.3万
• 依托单位: Tokuyama College of Technology (2000-2001)Nagaoka University of Technology (1999)
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 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/grant/KAKENHI-PROJECT-11650479/
• 关键词: Reinforced concrete member; Pre-cracked member; Axial tension; Shear failure; Finite element method; Repair; ひび割れ部材の性能; 損傷; 鉄筋コンクリート; 耐荷性能; 補修; 補強; FEM解析

In statically indeterminate reinforced structures, there are many cracks caused by longitudinal tensile stress such as shrinkage of concrete, temperature change and other severe conditions. This paper reports the results of the experimental and/or analytical study on the capability of pre-cracked reinforced concrete members.The experimental results showed that many members increase the shear strength due to the initial crack. The above results were presented at CSSCE(2001) and CONSEC(2001).In the numerical study, two kinds of finite element (the isoparametoric shell elements and three dimensional solid elements) was used for the response analysis of the pre-cracked reinforced concrete member. Also, the response analyzes for repair techniques of reinforced concrete pier were carried out using the FEM based on the three dimensional solid element.These results were presented at DRRDAG(2000), APCSSS(2000), and CSSCE(2001).

在钢筋混凝土超静定结构中，由于混凝土收缩、温度变化等恶劣条件引起的纵向拉应力引起的裂缝较多。本文报道了对预裂缝钢筋混凝土构件的性能进行试验和分析研究的结果，试验结果表明，许多构件由于初始裂缝的存在而提高了抗剪强度。上述结果已在CSSCE（2001）和CONSEC（2001）上发表。在数值研究中，采用了两种有限元（等参壳单元和三维实体单元）对预裂钢筋混凝土构件进行了响应分析。此外，还采用基于三维实体单元的有限元法对钢筋混凝土桥墩的修复技术进行了响应分析，这些结果已在DRRDAG（2000）、APCSSS（2000）和CSSCE（2001）上发表。

项目成果

Tomanobu Ishida,Takalino TAMURA: "Ultimate Strength of R/C Piers with Wrapping"Proceedings of Sixth Asian Pacific Conference on Shell and Spatial Structures. vol.2. 953-960 (2000)

Tomanobu Ishida，Takalino TAMURA：“带包裹的遥控桥墩的终极强度”第六届亚太壳与空间结构会议论文集。

Takahiro TAMURA: "Experimental Study on the Shear Strength of Cracked R/C Members"Concrete Under Severe Environment and Loading Condition. Vol.2. 1141-1148 (2001)

Takahiro TAMURA：“开裂R/C构件抗剪强度的试验研究”混凝土在恶劣环境和荷载条件下。

Takahiro TAMURA: "A Study of Repair with Steel Sheets and Reinforced Concrete Cover for Cracked R/C Pier"6th International Conference Deterioration and Repair of Reinforced Concrete in the Arabian Gulf.. 807-814 (2002)

Takahiro TAMURA：“用钢板和钢筋混凝土覆盖物修复开裂 R/C 码头的研究”第 6 届阿拉伯湾钢筋混凝土劣化与修复国际会议.. 807-814 (2002)

Takahiro TAMURA: "Shear Strength of Cracked R/C beam"Creative Systems in Structural and Construction Engineering. 989-993 (2001)

Takahiro TAMURA：“开裂 R/C 梁的剪切强度”结构和建筑工程创意系统。

Takahiro TAMURA: "Study on the Bending Fatigue of the Slab of the Plate Girder Bridge using Round Bar (Japanese)"Proceedings of the Japan Concrete Institute. Vol.21, No.1. 589-594 (2000)

Takahiro TAMURA：“使用圆棒对板梁桥板的弯曲疲劳进行研究（日语）”日本混凝土学会会议录。