| 超高韧性水泥基复合材料与钢筋粘结本构关系的试验研究 |
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| 引用本文： | 徐世烺,王洪昌. 超高韧性水泥基复合材料与钢筋粘结本构关系的试验研究[J]. 工程力学, 2008, 25(11) |
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| 作者姓名： | 徐世烺 王洪昌 |
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| 作者单位： | 大连理工大学海岸及近海工程国家重点实验室结构分室,辽宁大连116024 |
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| 基金项目： | 南水北调工程建设重大关键技术研究及应用项目，国家自然科学基金 |
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| 摘 要： | 超高韧性水泥基复合材料(Ultra High Toughness Cementitious Composites,简称UHTCC)是一种新型高性能纤维混凝土,具有卓越的韧性和优良的耐久性能,已被成功地应用于许多实际工程。当在该材料浇注的构件中配制加强钢筋时,除了各自基本的材料力学性能外,它们之间的粘结滑移本构关系也是获取正确可靠的结构力学响应所必需的基本参数。基于此,在对6个钢筋内贴片试件进行拉拔试验的基础上,通过实测的钢筋应变和端部滑移,分析了两者之间的粘结应力以及相对滑移沿锚固长度的分布规律,进而推导出沿锚固长度变化的粘结滑移本构关系和反映这种变化的位置函数,并建立考虑锚固位置的粘结滑移本构关系。
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| 关 键 词： | UHTCC 粘结滑移本构关系 拉拔试验 位置函数 内贴片法 |
EXPERIMENTAL STUDY ON BOND-SLIP BETWEEN ULTRA HIGH TOUGHNESS CEMENTITIOUS COMPOSITES AND STEEL BAR |
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| XU Shi-lang,WANG Hong-chang. EXPERIMENTAL STUDY ON BOND-SLIP BETWEEN ULTRA HIGH TOUGHNESS CEMENTITIOUS COMPOSITES AND STEEL BAR[J]. Engineering Mechanics, 2008, 25(11) |
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| Authors: | XU Shi-lang WANG Hong-chang |
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| Affiliation: | State Key Laboratory of Coastal and Offshore Engineering;Dalian University of Technology;Dalian;Liaoning 116024;China |
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| Abstract: | A kind of new high performance fiber reinforced concrete, Ultra High Toughness Cementitious Composites (abbreviated as UHTCC) which shows prominent toughness and superior durability, has been successfully applied in many practical projects. When the member made of UHTCC is reinforced by steel bar, except for the fundamental material mechanical properties of UHTCC and steel bar, bond-slip relationship between them also is a necessary basic parameter for obtaining an accurate and reliable analytical result. B... |
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| Keywords: | UHTCC |
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