1275x

2022-08-12

CLT MIX and CLT T Calculation Principles and Proposed Modeling Using Dlubal Software

In the construction industry, where sustainability is becoming increasingly important, the utilization of timber takes on a leading role. Consequently, there has been an increasing interest and investment in R&D&I projects related to structural timber, which has led to the products with special properties that allow timber to compete with other materials, such as concrete or steel.

Author	Andoni Martin Sanz
University	University of the Basque Country - San Sebastian University of Architecture, Spain

Proposal of CLT MIX

This frenetic race to create new structural elements has a problem: the difficulty in finding modeling tools for these elements, which are more unique by nature than those with more entrenched industrialization.

This thesis' intention is to propose the modeling of some of these products, such as CLT MIX and CLT T, by using the modular software by Dlubal Software.

Downloads

Graduation Thesis 000458 | CLT MIX and CLT T Calculation Principles and Proposed Modeling Using Dlubal Software

7.41 MB

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Events

2024-04-24

Online Training

RFEM 6 | Students | Introduction to FEM

2024-04-25

Stiffening Design in RFEM 6 Using Building Model

Webinar

Stiffening Design in RFEM 6 Using Building Model

2024-04-25

AISC 360-22 Steel Connection Design in RFEM 6

Webinar

AISC 360-22 Steel Connection Design in RFEM 6 (USA)

2024-04-30

Online Training

RFEM 6 | Students | Introduction to Timber Design

2024-05-02

Construction Stages in Membrane Structures with RFEM 6

Webinar

Construction Stages in Membrane Structures with RFEM 6

2024-05-08

Online Training

RFEM 6 | Students | Introduction to Reinforced Concrete Design

2024-05-09

$Cross-Section Modeling and \n Stress Analysis in RSECTION 1$

Webinar

Cross-Section Modeling and Stress Analysis in RSECTION 1

2024-05-15

Online Training

RFEM 6 | Students | Introduction to Steel Design

2024-05-16

Consideration of Construction Stages in RFEM 6

Webinar

Consideration of Construction Stages in RFEM 6

2024-05-23

Most Frequently Asked Questions Answered by Dlubal Support Team

Webinar

Most Frequently Asked Questions Answered by Dlubal Support Team | May 2024

2024-05-29

$Steel Structures in RFEM 6 \n Part 1: Modeling, Load Input$

Webinar

Modeling and Design of Steel Structures in RFEM 6 | Part 1: Modeling, Load Input

2024-06-06

$Steel Structures in RFEM 6 \n Part 2: Combinations, Design, Documentation$

Webinar

Modeling and Design of Steel Structures in RFEM 6 | Part 2: Combinations, Design, Documentation

Videos

Customer Project

CP 001173 | CLT Residential Building in Girona, Spain

Length: 00:00:11 min

Product Feature

Fire Resistance Design of Surfaces for EN 1995, SIA 265, NDS, and CSA O86

Length: 00:00:56 min

Product Feature

Accelerograms in Time History Analysis Add-on

Length: 00:01:06 min

Event

Webinar | Timber Floor Calculations in RFEM 6

Length: 00:55:27 min

Event

RFEM 6 for Students | Introduction to Timber Design | November 29, 2023

Length: 01:10:03 min

Product Feature

Cross‑Section Optimization

Length: 00:00:56 min

General

RFEM 6 Tutorial for Beginners | 003 Create New Model - Base Data (USA)

Length: 00:04:29 min

General

RFEM 6 Tutorial for Beginners | 004 User Interface | Control (USA)

Length: 00:08:28 min

General

RFEM 6 Tutorial for Beginners | 006 Modeling | 2D Frame, Taper, Mirror (USA)

Length: 00:05:47 min

Playlist

Models to Download

760x

55x

CLT Panel

Thesis on CLT Building by Miryea Alfano, Italy

706x

Timber and Concrete Building

1635x

CLT Residential Building

1124x

Wall Element Made of Cross-Laminated Timber (CLT)

RFEM Model of Timber Residential Building

4494x

394x

Residential Building of Cross-Laminated Timber

274x

64x

Timber Frame Building

Model 004809 | Cross-Laminated Timber Building

330x

47x

Cross-Laminated Timber Building

354x

21x

Column-Beam Connection HEB 300

177x

19x

Timber Slab

Knowledge Base Articles

Influence of Duration of Action on Design Value of Strength

In addition to determining loads, some particularities concerning the load combinatorics in timber design have to be considered. Contrary to steel structures, where the largest loading results from all unfavorable actions, in timber construction, the strength values depend on the load duration and timber humidity. Special characteristics have to be considered as well for the serviceability limit state design. The following article discusses the effects on the design of wooden elements and how this is possible with RSTAB and RFEM.

The vibration design of cross‑laminated timber plates often governs for wide-span ceilings. The advantage of timber as a lighter material compared to concrete is turned into a disadvantage here, since a high mass is advantageous for a low natural frequency.

KB 001848 | Timber Column Design as per the 2018 NDS Standard in RFEM 6

Using the Timber Design add-on, timber column design is possible according to the 2018 NDS standard ASD method. Accurately calculating timber member compressive capacity and adjustment factors is important for safety considerations and design. The following article will verify the maximum critical buckling strength calculated by the Timber Design add-on using step-by-step analytical equations as per the NDS 2018 standard including the compressive adjustment factors, adjusted compressive design value, and final design ratio.

Image 1: Specific Parameters of Nonlinear Elastic Soil Material Model

The Geotechnical Analysis add-on provides RFEM with additional specific soil material models that are able to suitably represent complex soil material behavior. This technical article is an introduction to show how the stress-dependent stiffness of soil material models can be determined.

Screenshots

Proposal of CLT MIX

Assembled Timber Structure

Isometric View of Timber-Concrete Building

RFEM Model | Thesis by Miryea Alfano, CLT Building, Italy

Timber Beam Ceiling

Hall

Stability of Arch Structure

Timber Arch Structure

Timber Building

Product Features

Using the "Beam Panel" thickness type, you can model timber panel elements in 3D space. You just specify the surface geometry and the timber panel elements are generated using an internal member-surface construct, including the simulation of the connection flexibility.

Go to Explanatory Video

Feature 002585 | Fire Resistance Design of Surfaces for EN 1995 and SIA 265

You have the option to perform the fire resistance design of surfaces using the reduced cross-section method. The reduction is applied over the surface thickness. It is possible to perform the design checks for all timber materials allowed for the design.

For cross-laminated timber, depending on the type of adhesive, you can select whether it is possible for individual carbonized layer parts to fall off, and whether you can expect increased charring in certain layer areas.

Feature 002615 | Cross-Laminated Timber Manufacturer Library for USA, Canada, and Switzerland

Among others, the following cross-laminated timber manufacturers are available in the layer structure library:

Binderholz (USA)
KLH (USA, CAN)
Kalesnikoff (USA, CAN)
Nordic Structures (USA, CAN)
Mercer Mass Timber
SmartLam
Sterling Structural
Superstructures listed in Lignatec Edition 32 "Cross-Laminated Timber of Swiss Production"

By importing a structure from the layer structure library, all relevant parameters are adopted automatically. The library is continually updated.

The Timber Design add-on for RFEM 6 / RSTAB 9 is multi-purpose and combines a large number of additional elements. [*S16332764*] Timber Design Add-on for RFEM 6

Frequently Asked Questions (FAQ)

How can I generate an area load on members via cells in RFEM 6 or RSTAB 9?

How can I define temporary supports for a form-finding process in RFEM& 6?

Which programs do I need for laminate and sandwich structures, or cross-laminated timber (CLT)?

Which Dlubal Software programs can I use to calculate and design timber structures?

Where can I find the support chat for quick assistance on the Dlubal website?

How can I create a model template in RFEM 6?

Customer Projects

CLT Residential Building Under Construction in Girona, Spain (© Egoin)

CLT Residential Building in Girona, Spain

Timber Truss Girders and Glued-Laminated Timber Decking (© Holz Albertani SpA)

Timber Roof of Shopping Mall, Italy

Siegrist Igor Carpenteria Warehouse in Maggia, Switzerland

Metz Gym as Showcase of Engineering and Sustainability in Modern Construction, Metz, France

Office Building of Stadtwerke Kirchheim unter Teck, Germany

New Concert Hall in La Roche-sur-Yon, France

Timber Roof with Folded Plates in Anoeta, Spain

Gazebo in Monbijoupark in Bern, Switzerland

King Louis Bridge, Kempten, Germany | © Konstruktionsgruppe Bauen AG

King Louis Bridge in Kempten, Germany

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