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An Analytic Approach to Predict the Shape and Internal Forces of Barrel Vault Elastic Gridshells During Lifting Construction by Sheng Xiang; Bin Cheng; Soheila Kookalani; Jian Zhao is a Engineering article available to read on EtoBox.

What is An Analytic Approach to Predict the Shape and Internal Forces of Barrel Vault Elastic Gridshells During Lifting Construction about?

The barrel vault elastic gridshell is a type of spatial structure composed of long continuous solid timber or hollow GFRP members and achieves its shape from elastic deformations during the construction process of lifting or pushing. The shape forming mechanism of elastic gridshells is very complicated due to significant geometric non-linearity. This research aims to propose analytic formulations to estimate the deformed shapes of barrel vault elastic gridshells considering the mechanical properties of structure. Simplified model of a single member subjected to distributed loads and concentrated forces was established for theoretical analysis, from which the deformations and bending moments of the structure were calculated. Finite element models were further established to validate the accuracy of the proposed approach, and both simple cantilever beams and spatial barrel vault elastic gridshells were employed as investigation objects. Various cases of dimensional parameters were covered so that the wide applicability of such analytical method can be verified. Results show that the derived performance indexes of all members are very close to the results from finite element analysis,

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Author

Sheng Xiang; Bin Cheng; Soheila Kookalani; Jian Zhao

Publisher

Elsevier BV

Published

2021

Language

EN

Field

Engineering (Physical Sciences)