Passive House Made of Timber in Lugo, Spain
The Dlubal customer Maderas Besteiro is a third-generation family owned company focused in construction and manufacturing with timber. The driving value of the company of providing social and environmental sustainability houses to the local community has come truth once again.
Jorge Gómez Cereijo
The one-story house made of cross-laminated and glued-laminated timber will be awarded with the prestigious certification for passive houses, a symbol of high quality standards in terms of energy efficiency and CO2 consumption.
Structure and Design
The house has an irregular floor plan and is based on a reinforced concrete floor slab. The wall and roof structure is made of cross-laminated timber. The roof structure is reinforced with glulam beams of class GL24h to define a special inverted roof with sharp cantilevers standing out of the façade. In order to achieve high spans, the timber beams had to be reinforced with steel beams at some locations of the roof.
The finite element program RFEM was used to simulate the structural behavior of the entire system including line hinges between the cross-laminated timber panels and the elastic foundation under the floor slab. The design according to standard was performed with the add-on modules RF-LAMINATE and RF-CONCRETE Surfaces in order to optimize thicknesses.
It was necessary to create a local model to evaluate the connection between steel and timber beams on the cantilevers and to analyze the resistance of fasteners (pulling out) under specific situations such as wind pressure and suction.
Project LocationFerreira Mosteiro
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The material model Orthotropic Masonry 2D is an elastoplastic model that additionally allows softening of the material, which can be different in the local x- and y-direction of a surface. The material model is suitable for (unreinforced) masonry walls with in-plane loads.
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Why are my steel members not being designed for stability in RF-STEEL AISC?
- My section is classified as Class 4 and non-designable in RF-/STEEL CSA. However, my manual calculation shows a different class. Why the difference?
- I have defined temperature loads, strain loads, or a precamber. As soon as I modify stiffnesses, the deformations are no longer plausible.
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- When should the punching load be determined with the (un)smoothed distribution of the shear forces at the critical perimeter?
- I would like to perform the punching shear design on a column with connected downstand beams as a wall corner or Perform wall end. However, the module applies an internal column. Is it possible to adjust it?
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Programs Used for Structural Analysis
Structural engineering software for finite element analysis (FEA) of planar and spatial structural systems consisting of plates, walls, shells, members (beams), solids and contact elements
Design of reinforced concrete members and surfaces (plates, walls, planar structures, shells)
Deflection analysis and stress design of laminate and sandwich surfaces
Stress analysis of steel surfaces and members