Publication

Segmented Spiral Using Inter-Connected Timber Elements

Yves Weinand, Petras Vestartas, Aryan Rezaei Rad, Martin Thomas Nakad, Loïc Henri Pelletier
2019
Conference paper

Abstract

This paper describes the construction process of a scenographic structure - five meters high spiral. It consists of following parts: CAD modeling work-flow, prototyping and FEM structural calculation, assembly and on-site loading test. The structure was composed of twenty-nine wooden boxes, which were screwed together and suspended by cables. The custom FEM model was made to understand the structural behavior of the spiral. The principal objective of structural calculation was to understand the rigidity of the connections and the interactions between the wooden-boxes, in order to apprehend the behavior of the structure under loads. Further details are given about different steps involved in modelling and fabrication, such as parametric tools, G-Code tool-path generation for the 4.5-axis CNC machine and on-site installation. Afterwards, the loading tests and point-cloud deflection comparison are discussed in order to highlight the possible optimization of such structures.

Official source

https://infoscience.epfl.ch/record/280748?ln=en

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Ontological neighbourhood

Civil engineering

Structural engineering: Topics in structural engineering

Related concepts (29)

Structural engineering

Structural engineering is a sub-discipline of civil engineering in which structural engineers are trained to design the 'bones and muscles' that create the form and shape of human-made structures. Structural engineers also must understand and calculate the stability, strength, rigidity and earthquake-susceptibility of built structures for buildings and nonbuilding structures. The structural designs are integrated with those of other designers such as architects and building services engineer and often supervise the construction of projects by contractors on site.

Structural analysis

Structural analysis is a branch of solid mechanics which uses simplified models for solids like bars, beams and shells for engineering decision making. Its main objective is to determine the effect of loads on the physical structures and their components. In contrast to theory of elasticity, the models used in structure analysis are often differential equations in one spatial variable. Structures subject to this type of analysis include all that must withstand loads, such as buildings, bridges, aircraft and ships.

Structural load

A structural load or structural action is a force, deformation, or acceleration applied to structural elements. A load causes stress, deformation, and displacement in a structure. Structural analysis, a discipline in engineering, analyzes the effects of loads on structures and structural elements. Excess load may cause structural failure, so this should be considered and controlled during the design of a structure. Particular mechanical structures—such as aircraft, satellites, rockets, space stations, ships, and submarines—are subject to their own particular structural loads and actions.

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