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Theoretical and Experimental Research on the Suspended Cylindrical Lattice Shell

Author: PangZuo
Tutor: DongShiZuo
School: Zhejiang University
Course: Structural Engineering
Keywords: Chord pillar surface mesh shell Structural body Morphological analysis Mechanical Properties Model test
CLC: TU399
Type: Master's thesis
Year: 2010
Downloads: 69
Quote: 1
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Abstract


String branch network shell by Fuller's \The system can give full play to the advantages of prestressed technology to increase the the monolayer shells stiffness and carrying capacity. String branch network shell has been more research and engineering applications in recent years, such as for sports buildings, exhibition building, but its construction plane mostly dome spherical (ellipsoid) network shell corresponding circular plane (oval plane ), single impact on the promotion and application range. This paper proposed a combination of an upper reticulated shell and the lower chord support system chord pillar surface mesh shell, carried out a systematic study of this new type of spatial structure. Chapter 1 summarizes the classification of large-span space structure, a systematic analysis of the history of the development of the strings supported reticulated shell structures, engineering applications and research status, and to determine the content of this research. Chapter 2 of the chord pillar surface mesh shell classification, four types of monomer chord pillar surface mesh shell, and in accordance with the the supporting conditions proposed four combinations, these forms can be used in different architectural modeling large span space structure. Chapter 3 summarizes the the strings supported reticulated shell morphological analysis problem, including the classification of morphological analysis problem solving ideas and the lower cable-strut design of prestressed. 4th chapter to tricyclic string support unidirectional diagonals of orthogonal grid type cylindrical reticulated shell, for example, the analysis of the structure in uniformly distributed loads under static and dynamic performance, to study the structure of the prestressed level mechanical properties the network shell cross-section of the rod, span ratio and plane size parameters. Chapter 5 analyzes the cylindrical reticulated shell tricyclic string support two types of characteristics values ??buckling eigenvalue structure in prestressed level under the parameters of the network shell rod cross-section, span ratio and plane size flexion characteristics. To tricyclic string support unidirectional diagonals orthogonal put is a grid-type cylindrical reticulated shell, for example, analysis of uniformly distributed loads, the structure in prestressed level network shell cross-section of the rod, span ratio The performance of the nonlinear buckling under the plane size and initial defect parameters. Study the impact of the of different stringed support ring chord pillar surface mesh shell stability, and compare the economic performance of the two large span space structure. Chapter 6 of Shenzhen North Station column platform canopy as the background, design 1/8 scale model of a 3 × 3 grid, its lower cable-strut prestressed tension test, static load test and partial off cable (rod) test, and the test measured data with the theoretical analysis results were compared and analyzed. Chapter 7 summarizes the contents of this paper, the new structure still need to be resolved, and a clear direction for future research.

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