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Swing Analysis of Frame-tube Structure with Strengthened Stories Subjected to Lateral Load

Author: ZhouChunSheng
Tutor: ZhangZhongXian
School: Huazhong University of Science and Technology
Course: Structural Engineering
Keywords: Frame - tube structure Reinforcing layer The principle of minimum potential energy Variational functionals Continuous analysis Structural optimization
CLC: TU973.2
Type: Master's thesis
Year: 2006
Downloads: 134
Quote: 2
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Abstract


With more and more tense urban land use and various high-tech continuous development, building height increasing. \When the structural height is larger, frame - tube structure as a high-rise building structure using conventional structural system, its resistance to lateral wind load and stiffness of horizontal seismic action there is often inadequate. In the frame - tube structure set reinforcing layer column flange can explore and utilize the overall flexural capacity, can be more economical and effective to increase the lateral stiffness of the structure, reducing the lateral structure. In this paper, a reinforcing layer frame - tube structure in calm water under lateral loads characteristics, static stiffness, structural parameters on the impact of structural lateral stiffness, flexural rigidity and structural optimization matches were analyzed. Paper introduces a high-level framework - set reinforcing layer tube structure Mechanism and theoretical analysis model, the basic assumptions and analytical methods; reinforcing layer for setting the framework - tube structure static and dynamic characteristics theory inadequacies exist , proposed a common floor beams and to consider the impact of floor structure, consider strengthening layer beam, the inner cylinder and the outer cylinder shearing bending analysis model; in the literature based on the proposed multi-channel enhancement layer for setting the framework - tube structure for static and dynamic analysis of possible ways; Under certain assumptions, based on the analysis model based on the established methods of analysis and ideas that will be equivalent to ordinary floor beams uniformly distributed along the height direction of the continuous medium, using the minimum potential energy principle established at the top of the structure to strengthen sub-horizontal distribution in any static load, overturning moment, and at the top of the control under concentrated load balance equation; using variational functional analysis of the sub-structure obtained in the above three lateral lateral Loads analytic curve; On this basis, further reinforcing layer obtained by setting a framework for multi-channel - tube structure under the lateral loads lateral curve. In lateral horizontal loads obtained analytical solutions, through a simple numerical example for a numerical analysis of the top layer is set to strengthen the framework - cylinder substructure Standard Floor beams, reinforcing layer outrigger columns and other structural elements and frame lateral stiffness of the structure of the overall impact of the qualitative and quantitative research, while the floor beams, reinforcing layer, the inner cylinder and frame stiffness matching column were analyzed from the perspective of static lateral stiffness characteristics of the structure parameters were optimized. selection, and closely integrated with the actual project proposed specific structural arrangement and design concepts, methods and principles.

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CLC: > Industrial Technology > Building Science > High-rise buildings > Tall Building Structures > Structural Analysis and Calculation
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