【作者】 王其明；

【导师】 马克俭； 陈志华；

【作者基本信息】 天津大学 ， 结构工程， 2012， 博士

【摘要】 本文提出了一种新型的钢筋混凝土结构体系—以石膏为填充外墙的钢筋混凝土网格盒式筒中筒结构，它不仅在建造中大量使用了脱硫石膏和磷石膏，符合我国经济建设中“减量化、再利用和资源化”的循环经济三原则的要求；而且其结构性能、建筑功能和经济性能都优于常规的筒体结构，是对传统的结构体系的开拓和创新。绪论介绍了工业石膏的物理、力学性能及其在国内的分布状况，以及工业石膏节能建筑的研究现状及应用情况；介绍了本文的选题意义和主要研究内容。介绍了钢筋混凝土网格盒式筒中筒结构中的外网格式框架的组成特点，采用力学计算方法分析了网格式框架的侧移性能以及影响侧移的主要因素；研究了网格式框架中网格尺寸对框架性能的影响，得出了合理的网格尺寸；对一榀框架进行了推覆分析，研究了网格式框架结构的抗震性能；为今后设计网格式框架提供了设计依据。阐述了钢筋混凝土网格盒式筒中筒结构中的密肋井字空腔大板的组成特点，采用连续化的方法建立了其力学计算模型并推导了其基本力学方程，并提出了该大板实用计算方法。结合本体系转化项目正在施工的楼板，对8.4米×8.4米范围的大板进行了现场载荷试验，试验结果表明，该大板空间作用效果明显，实测刚度较实用计算方法大，采用实用计算方法能满足设计要求。把网格盒式筒中筒结构简化为内、外两个实心筒，实心筒之间通过平面刚度无穷大的楼板连接，楼板和内外筒之间铰接，把结构连续化，采用最小势能原理，推导出了钢筋混凝土网格盒式—筒中筒结构的侧移方程及结构构件的内力计算，并通过一实例对推导出的公式进行了验证，结果表明连续化分析方法精度较高，可以满足工程计算要求。以本体系的转化项目—唐山建华工程质量检测有限公司办公楼为例，对比分析了本结构体系和常规的筒中筒和框架核心筒体系的力学性能和经济性，结果表明：本体系的抗侧刚度最大、竖向刚度分布均匀、内外筒的协同工作性能良好。并在各项力学性能指标均优良的情况下，结构的含钢量和混凝土用量最小，具有良好的经济效益。最后对网格盒式筒中筒结构结构进行了动力弹塑性分析，该体系能够满足在罕遇地震下结构的各项指标要求，塑性铰首先出现在剪力墙的连梁，外网格式框架的塑性铰先出现在梁端。该体系表现出了优良的抵抗罕遇地震的能力。更多还原

【Abstract】 A new reinforced concrete structure applied in high-rise, super high-riseresidential and public buildings is proposed in this paper, called reinforced concretegrid box tube in tube structure with gypsum as the filling exterior wall. It is not onlyin the construction of the extensive use of FGD gypsum or phosphorus gypsum,according with the circular economy requirements of "reduce, reuse and recycling"three principles of our country’s economic development; but also the structuralproperties, architectural function and economic performance is superior to theconventional tube structure, it is the development and innovation to the traditionalstructure system.The preface introduces physical, mechanical properties of the industrial gypsumand its domestic distribution; the present research and application situation ofindustrial gypsum building are summarized, analyzes industrial gypsum dosage of avariety of energy-saving building, the basic composition and gypsum dosage of newhigh-rise reinforced concrete structure energy-saving building are introduced；introduces the significance of the subject and main research contents of this paper.The paper introduces composition characteristics of the external grid frame ofreinforced concrete grid cassette tube in tube structure, analyses the lateralperformance and influence factors of the lateral of the grid frame adopting themechanical calculation method. It has arrived at a reasonable grid size via researchingthe influence of the grid size on the properties of grid frame, the seismic performanceof grid frame structure is studied through the pushover analysis of a frame. It putsforward some references for the future designation of this grid frame system.The paper expounds composition characteristics of the ribbed well cavity largeplate of reinforced concrete grid cassette tube in tube structure, it establishes themechanics calculation model and deduces the basic mechanical equation adopting thecontinuous methods, and puts forward practical calculation method of the plate.Combined with floor under construction of this system conversion project-TangshanJianhua Engineering Quality Inspection Co., office buildings, a load test is used for abig plate of8.4m x8.4meters, the result shows that the space effect of the plate isobvious, the measured stiffness is bigger than practical calculation method, and thepractical calculation method can meet the design requirements.The grid cassette tube in tube structure is simplified to internal and external two solid cylinder, solid cylinders connect by the slab which plane stiffness is infinite, slaband cylinders are hinged, between the continuous structure, using the minimumpotential energy principle and continuous analysis theory, the paper derives areinforced concrete grid cassette tube in tube structure lateral equation and thestructures internal force calculation formula, and this derived formula are verifiedthrough an example in the end of the paper, the results show that continuous analysismethod has high precision and can meet the engineering computation requirements.To this system conversion project-Tangshan Jianhua Engineering QualityInspection Co., office buildings as for example, it comparatively analyses themechanical properties and economic analysis of this structure system, conventionaltube in tube structure and the framework core barrel system, the results show that thesystem has the largest anti-lateral stiffness, uniformly distributed vertical stiffness andexcellent collaborative work performance of internal and external barrel. And underall the excellent indexes situation, the structure has the good economic efficiency asfor its containing of the smallest steel and concrete consumption.Finally, the elasto-plastic dynamic analysis of the grid cassette tube in tubestructure is introduced, this system can meet the index requirements of the structureunder the rare earthquake, the plastic hinge first appeared in coupling beam of shearwall, and the plastic hinge of the outside grid frame first appeared in the beam end.The system demonstrates excellent resistance ability to the rare earthquake.更多还原