【作者】 和超；

【导师】 丁红岩；

【作者基本信息】 天津大学 ， 建筑工程技术与管理， 2013， 博士

【摘要】 预制管混凝土柱主要由外层高强度混凝土预制管和核心现浇混凝土组成,预制管在工厂规模化生产,施工现场经吊装后,浇筑预制管内核心混凝土。预制管混凝土柱组合材料相同,协同工作性能好,预制管即充当核心混凝土模板又是重要的承载力部分,新型预制管混凝土柱节点形式实现了预制管与梁紧密连接,核心现浇混凝土的存在又能改善预制框架体系整体性能不足的特点,可以说预制管混凝土柱是一种本着施工快速化、结构高性能而产生的新型预制组合体系。本文针对新型预制管混凝土柱结构展开了以下研究工作：1、预制管混凝土柱粘结性能分析。利用新老混凝土粘结相关知识,结合预制管混凝土柱的自身特点,从理论上分析了预制管与核心混凝土的粘结问题。2、预制管混凝土柱轴压性能试验研究。通过10根方形截面预制管混凝土和10根圆形截面预制管混凝土轴压试验,分析了预制管混凝土柱轴压破坏性能及荷载-应变规律,结果表明预制管混凝土柱具有可靠的轴压性能。并且根据混凝土本构模型,通过MATLAB软件,计算出了不同强度混凝土相互协调系数关系,提出了预制管混凝土柱轴压的极限承载力计算公式,结果表明该计算公式与试验值吻合较好。3、预制管混凝土柱轴压性能和偏压性能数值模拟研究。分别通过MATLAB软件和有限元软件ABAQUS模拟了预制管混凝土柱的轴压和和偏压荷载-应变曲线,并通过有限元软件ABAQUS模拟分析了参数变化对预制管混凝土柱轴压和偏压性能的影响,通过分析更加透彻的揭示了预制管混凝土柱的轴压和偏压机理。4、预制管混凝土柱结构抗震性能试验研究。透过3组不同位置的预制管混凝土柱结构抗震试验研究,对比分析了预制管混凝土柱结构抗震性能与普通混凝土柱抗震性能的差异,结果证明预制管混凝土柱结构具有较可靠的抗震性能。5、预制管混凝土柱施工技术分析。参考现有的普通混凝土柱以及钢管混凝土柱结构的施工方法,结合预制管混凝土柱的自身特点,阐述了预制管混凝土柱结构的施工方法。更多还原

【Abstract】 Concrete-filled prefabricated concrete tube column consist of the outer highstrength precast concrete tube and the inner core cast-in-place concrete, at theconstruction site inner core region concrete is pouring after outer high strength precastconcrete tube has done large scale production in the precasting yard and hoisting.Composite material of concrete-filled prefabricated concrete tube column combinedstructure is the same, thereby having good working ability, prefabricated tube act asboth core concrete building and the bearing part, this type node of novelconcrete-filled prefabricated concrete tube column realized the demand of highstrength node and connecting between prefabricated tube and beam, the inner corecast-in-place concrete improve the lack of overall performance of frame system. Theconcrete-filled prefabricated concrete tube column can be seen as a new type ofprefabricated composite system in the high speed of construction and highperformance of structure.This paper have done studies on new type of concrete-filled prefabricatedconcrete tube column:1. Analysis of bond performance of concrete-filled prefabricated concrete tubecolumn. Some theoretical analysis of the bonding force of prefabricated tube and thecore concrete has been done based on new and old concrete bond related knowledgeand the own characteristics of concrete precast tube.2. Research on axial bearing test of concrete-filled prefabricated concrete tubecolumn. The axial compression performance of concrete-filled prefabricated concretetube column is reliable by analysis of axial compression failure properties andstress-strain rules according to axial bearing test of10square and10circle crosssection concrete-filled prefabricated concrete tube columns. Coordination coefficientsof different strength concrete have been defined and calculation method of limitbearing capacity applicable to concrete-filled prefabricated concrete tube columnunder axial compression have been put forward according to the differences ofconstitutive model of concrete with different strength and the MATLAB software, theresults show that the formulas are in good agreement with experimental values.3. Research on Numerical Simulation of axial and bias compression performanceof concrete-filled prefabricated concrete tube column. Axial and bias compressionload-strain curve of concrete-filled prefabricated concrete tube column was simulated by MATLAB software and finite element analysis software ABAQUS, and theinfluence based on changes of parameters the concrete-filled prefabricated concretetube column axial and bias compression performance was simulated by finite elementanalysis software ABAQUS, reveal the mechanism of axial and bias compression theconcrete-filled prefabricated concrete tube column.4. Research on seismic performance test of concrete-filled prefabricated concretetube column. Some comparative analysis of differences of seismic performancebetween ordinary concrete columns and concrete-filled prefabricated concrete tubecolumns have been done according to3different positions experimental studies onseismic behavior of concrete-filled prefabricated concrete tube columns, the resultsshow that concrete-filled prefabricated concrete tube column is reliable in seismicperformance.5. The construction technology of concrete-filled prefabricated concrete tubecolumn. Reference to construction method of the existing ordinary concrete columnsand concrete filled steel tube columns, combined with own characteristics ofconcrete-filled prefabricated concrete tube columns, expounds the constructionmethod of concrete-filled prefabricated concrete tube columns.更多还原