BEARING CAPACITY ANALYSIS OF THE CONCRETE COLUMNS WITH HIGH STRENGTH CORE UNDER AXIAL COMPRESSION LOAD
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摘要: 为验证在核心高强素混凝土短柱试验研究基础上提出的核心高强混凝土柱轴心受压承载力计算公式的正确性,对3根核心高强混凝土柱和1根普通钢筋混凝土柱进行轴压试验,并对试验柱的破坏特征进行分析,对核心高强混凝土柱轴心受压承载力计算公式予以验证。结果表明:核心高强混凝土柱的破坏特征与普通钢筋混凝土柱相似,承载力有明显的提高;试验结果与文献[3]所提公式的轴心受压承载力计算值吻合良好。Abstract: Based on experimental research on plain concrete columns with high strength core,the formula to predict the bearing capacity of concrete columns with high strength core under axial compression load was brought forward in previous paper,in order to verify the formula whether right,axial compression tests including 3 concrete columns with high strength core and 1 general reinforced concrete column were completed in this paper, and the failure characteristic was analyzed additionally. According to experimental results,it can be shown that the failure modes of the concrete columns with high strength core are similar to those of general reinforced concrete columns,however,the bearing capacity of concrete columns with high strength core is significant high as compared with that of general reinforced concrete columns; the results of the bearing capacity obtained by the literature [3] was in good agreement with the experimental results.
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Key words:
- core high strength concrete /
- external ordinary concrete /
- column /
- bearing capacity
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过镇海,时旭东. 钢筋混凝土的高温性能及其计算[M]. 北京:清华大学出版社,2002. [2] GB 50010-2002 混凝土结构设计规范[S]. [3] 郑文忠,齐岳. 轴心受压核心高强混凝土短柱受力性能与承载力计算[J]. 哈尔滨工业大学学报,2009,41(12) :25-30. [4] 王玉银,张素梅. 圆钢管高强混凝土轴压短柱性能的试验研究[J]. 哈尔滨工业大学学报,2004,36(12) :1646-1648. [5] Rochette P,Labossire P. Axial Testing of Rectangular Column Models Confined with Composite. Journal of Composite for Construction,ASCE,2000,4(3):129-136. [6] 蔡健,谢晓锋,杨春,等. 核心高强钢管混凝土柱轴压性能的试验研究[J]. 华南理工大学学报: 自然科学版,2002,30 (6) :81-85.
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