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Research on Static and Dynamic Properties of Single-Layer Pyramid Lattice Shell Hybrid Structure

Author: ChenZuo
Tutor: LeiHongGang
School: Taiyuan University of Technology
Course: Structural Engineering
Keywords: Latticed shell flap Cable-strut system Hybrid Structure Initial prestress distribution Time history analysis method
CLC: TU399
Type: Master's thesis
Year: 2009
Downloads: 15
Quote: 0
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Abstract


Monolayer cone folded plate latticed shell cable rod hybrid structure is a combination of a new type of hybrid monolayer cone folded plate latticed shell and cable rod tension system structure can be adapted to a variety of different forms plane, and effectively improve the single-layer cone Mianzhe Mesh shell plane stability problems. This structure is sleek, flat-adaptable, and has a the bunk folded plate latticed shell unmatched permeability, has broad prospects for development. Cable rod hybrid structure monolayer cone folded plate latticed shell for the first time theoretical analysis using ANSYS finite element analysis software, respectively, from the initial prestress, static characteristics and dynamic characteristics of its research, the main methods and conclusions are as follows: In this paper, using the initial strain method prestressing, prestress distribution can be obtained accurately calculated results show that the stress distribution is more uniform and reasonable deformation meet the requirements, the layout of the cable-strut system. 2 to study the mechanical properties of the hybrid structure in the vertical symmetry loads to compare the calculated results to withstand the same load single-layer cone folded plate latticed shell. In order to in-depth study parameters for the performance of the structure under the relevant parameters. Results table Mingsuo rod system effectively improves the performance of the overall force structure. Take into account the role of the actual wind load asymmetry in the level of force loads to analyze the performance of the hybrid structure, and comparison with single-layer cone folded plate latticed shell-depth study of the parameters for the structure by force performance, but also of the relevant parameters. The results show that the monolayer conical folded plate latticed shell cable rod hybrid structure has a good stability for the tolerance level asymmetric loads. Force performance in asymmetric vertical loads in order to study the hybrid structure, the use of three different load distribution study strut length, span ratio of its impact. The analysis shows that the good performance of hybrid structure in vertical asymmetric loads. This paper subspace iteration method to analyze the structure of the natural vibration frequency, compared with monolayer shells, taking into account the impact of the parameters, the vibration characteristics change. This paper time history analysis method to calculate and analyze the seismic response of the structure in the horizontal and vertical seismic action, show that the vertical seismic action for the shell cable rod hybrid structure of single-layer conical flaps network can not be ignored.

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