Publications by Petras Vestartas

Les Cahiers de l'Ibois 3 / Ibois Notebook 3

Before the twentieth century and concrete modernity, it was stone that embodied the “well built”. Could sustainable wood one day replace concrete as the archetypal material? Will it find a place on the scale of values that gives archi- tecture its referenc ...

EPFL PRESS2022

A Collaborative Workflow to Automate the Design, Analysis, and Construction of Integrally-Attached Timber Plate Structures

Pierre Latteur, Yves Weinand, Aryan Rezaei Rad, Petras Vestartas, Nicolas Henry Pierre Louis Rogeau

This paper introduces a computational framework that fosters collaboration between architects, engineers, and contractors by bridging the gap between architectural design, structural analysis, and digital construction. The present research is oriented towa ...

CAADRIA2022

Cockroach: an open-source tool for point cloud processing in cad

Yves Weinand, Julien Gamerro, Andrea Settimi, Petras Vestartas

In the architecture, engineering and construction (AEC) sector, the use of point cloud data is not a novelty. Usually employed to retrieve data for inspecting construction sites or retrofitting pre-existing buildings, sensors like LiDAR cameras have been k ...

Association for Computer-Aided Architectural Design Research in Asia (CAADRIA)2022

Design-to-Fabrication Workflow for Raw-Sawn-Timber using Joinery Solver

Petras Vestartas

Currently, the Swiss timber industry in mountain areas largely exports unprocessed lumber and imports finished timber products due to the lack of digital tools. By using new digital design-to-production workflows, it is possible to investigate new building ...

EPFL2021

Structural design methodology in Integrally-Attached Timber Plate structures

Aryan Rezaei Rad, Petras Vestartas

The immediate application of research discoveries requires a global and exact understanding of the structure under consideration. To gain insight into the complex behavior of structures, numerical simulations are carried out in parallel to physical experim ...

Routledge, Taylor & Francis Group2021

Robotically-Fabricated Nexorades from Whole Timber

Yves Weinand, Aryan Rezaei Rad, Petras Vestartas

This paper introduces the conceptual design of sustainable timber structures using raw wood. It pre-sents a workflow for systematically generating Nexorades using a tiling method for multi-valence quad subdivided surfaces. The system is designed based on a ...

2021

A framework to automate the design of digitally-fabricated timber plate structures

Yves Weinand, Aryan Rezaei Rad, Henry V. Burton, Petras Vestartas, Nicolas Henry Pierre Louis Rogeau

The current study uses knowledge from digital architecture, computer science, engineering informatics, and structural engineering to formulate an algorithmic framework for integrated Computer-Aided Design (CAD) and Computer-Aided Engineering (CAE) of Integ ...

2021

Joinery Solver for Whole Timber Structures

Yves Weinand, Petras Vestartas

This paper presents a digital joinery generation method for whole-timber structures using wood-wood connections. The research is based on a collaboration with a local timber company located in a mountain area [1]. In this context, there is a need to explor ...

2020

Laser Scanning with Industrial Robot Arm for Raw-wood Fabrication

Yves Weinand, Petras Vestartas

This paper presents an integrated raw-wood fabrication workflow using an industrial robot arm and a laser scanner. The research is situated in a Swiss mountain forestry context where timber in its natural form could be applied locally without relying on la ...

2020

Modelling Workflow for Segmented Timber Shells using Wood-wood Connections

Yves Weinand, Julien Gamerro, Petras Vestartas, Nicolas Henry Pierre Louis Rogeau

This paper presents a modelling method based on planarization for double-curved segmented timber shell made from quad polygons and assembled by wood-wood connections. The inspiration is taken from timber dome structures, where solid timber walls were built ...

Springer2019

Performance Assessment of Double-Layered Timber Plate Shells using Alternative Structural Systems

Yves Weinand, Anh Chi Nguyen, Petras Vestartas, Bertrand Mathieu C Himmer

With recent advances in digital fabrication, innovative wood-wood connections inspired by ancient timber joining techniques have recently been applied to various free-form timber plate structures. This paper focuses on the recently developed double-layered ...

International Centre for Numerical Methods in Engineering (CIMNE)2019

Design framework for the structural analysis of free-form timber plate structures using wood-wood connections

Yves Weinand, Anh Chi Nguyen, Petras Vestartas

Geometrically complex timber plate structures using wood-wood connections are increasingly designed thanks to digital fabrication. Whereas their fabrication has been automated using computer-aided design programming, research focused on the development of ...

2019

Segmented Spiral Using Inter-Connected Timber Elements

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

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 co ...

INT CENTER NUMERICAL METHODS ENGINEERING2019