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8 records – page 1 of 1.

A Holistic Approach for Industrializing Timber Construction

https://research.thinkwood.com/en/permalink/catalogue2378
Year of Publication
2019
Topic
Site Construction Management
Design and Systems
Application
Wood Building Systems
Author
Santana-Sosa, Aída
Fadai, Alireza
Year of Publication
2019
Format
Conference Paper
Application
Wood Building Systems
Topic
Site Construction Management
Design and Systems
Keywords
Prefabrication
Off-site Construction
BIM
Mass Timber
Construction
Carbon
Conference
Sustainable Built Environment D-A-CH Conference
Research Status
Complete
Summary
Many strategies have been investigated seeking for efficiency in construction sector, since it has been pointed out as the largest consumer of raw materials worldwide and responsible of about 1/3 of the global CO2 emissions. While operational carbon has been strongly reduced due to building regulations, embodied carbon is becoming dominating. Resources and processes involved from material extraction to building erection should be carefully optimized aiming to reduce the emissions from the cradle to service. New advancements in timber engineering have shown the capabilities of this renewable and CO2 neutral material in multi-storey buildings. Since their erection is based on prefabrication, an accurate construction management is eased where variations and waste are sensible to be minimized. Through this paper, the factors constraining the use of wood as main material for multi-storey buildings will be explored and the potential benefits of using Lean Construction principles in the timber industry are highlighted aiming to achieve a standardized workflow from design to execution. Hence, a holistic approach towards industrialization is proposed from an integrated BIM model, through an optimized supply chain of off-site production, and to a precise aligned scheduled on-site assembly.
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Hybrid Cross Laminated Timber Plates (HCLTP) – Numerical Optimisation Modelling and Experimental Tests

https://research.thinkwood.com/en/permalink/catalogue1751
Year of Publication
2016
Topic
Design and Systems
Mechanical Properties
Material
CLT (Cross-Laminated Timber)
Author
Sustersic, Iztok
Brank, Boštjan
Dujic, Bruno
Brezocnik, Jaka
Gavric, Igor
Aicher, Simon
Dill-Langer, Gerhard
Winter, Wolfgang
Fadai, Alireza
Demschner, Thomas
Ledinek, Gregor
Year of Publication
2016
Format
Conference Paper
Material
CLT (Cross-Laminated Timber)
Topic
Design and Systems
Mechanical Properties
Keywords
Timber Ribs
Concrete Topping
Ultimate Limit States
Serviceability Limit States
Numerical Modelling
Experimental Tests
Conference
World Conference on Timber Engineering
Research Status
Complete
Notes
August 22-25, 2016, Vienna, Austria p. 4989-4996
Summary
This paper presents the development of two new types of hybrid cross-laminated timber plates (HCLTP) with an aim to improve structural performance of existing cross-laminated timber plates (Xlam or CLT). The first type are Xlam plates with glued timber ribs and the second type are Xlam plates with a concrete topping. A numerical...
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Long-term Testing of Prefabricated Timber-Steel-Concrete Ribbed Decks

https://research.thinkwood.com/en/permalink/catalogue2083
Year of Publication
2018
Topic
Serviceability
Material
Steel-Timber Composite
Timber-Concrete Composite
Glulam (Glue-Laminated Timber)
Application
Bridges and Spans
Author
Tavoussi, Kamyar
Riola-Parada, Felipe
Fadai, Alireza
Winter, Wolfgang
Rinnhofer, Matthias
Organization
Vienna University of Technology
Year of Publication
2018
Format
Conference Paper
Material
Steel-Timber Composite
Timber-Concrete Composite
Glulam (Glue-Laminated Timber)
Application
Bridges and Spans
Topic
Serviceability
Keywords
Long-term
Deformation
Creep
Prefabrication
Conference
World Conference on Timber Engineering
Research Status
Complete
Summary
The long-term deformation behavior of timber-steel hybrid beams was analyzed and tested in specific long-term tests presented at WCTE 2016. The documented reduction of their creeping values in approximately 50% indicates that also some kind of improvement can be expected in the further development of prefabricated timber-steel-concrete ribbed decks. In order to confirm this hypothesis a long-term creeping test under permanent load was designed,aiming to compare the deformation behavior of beams with a timber-steel-concrete and a timber-concrete cross-section.The tests will be performed on down scaled beams of 4 m instead of 6 m span due to a restricted capacity of load implementation and space limitations in the testing laboratory . The creeping beams were designed to have the same stress levels as the real ones in order to ensure the comparability of the results with the actual scope of application.
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Multifunctional Composite Wall Elements for Multistory Buildings Made of Timber and Wood-Based Lightweight Concrete

https://research.thinkwood.com/en/permalink/catalogue1520
Year of Publication
2016
Topic
Environmental Impact
Design and Systems
Energy Performance
Material
Timber-Concrete Composite
Application
Walls
Author
Fadai, Alireza
Radlherr, Christoph
Setoodeh Jahromy, Sepehr
Winter, Wolfgang
Year of Publication
2016
Format
Conference Paper
Material
Timber-Concrete Composite
Application
Walls
Topic
Environmental Impact
Design and Systems
Energy Performance
Keywords
Lightweight Concrete
Energy Efficiency
Conference
World Conference on Timber Engineering
Research Status
Complete
Notes
August 22-25, 2016, Vienna, Austria p. 613-622
Summary
This paper aims to discuss timber-wood lightweight concrete composites for application in wall components for buildings. The aim is to develop a multi-layer wall system composed of wood lightweight concrete, connected timber sections to gain and use advantages of each used material – lightweight, structural, thermal storage and insulation, ecological and economic benefits – to name the most important ones. The development of timber-wood lightweight concrete composites systems will lead to a new generation of polyvalent multi-material building components. By using renewable resources, waste products of the forest industry, and manufactured wood products, this technology provides statically and energy-efficient components for low-energy constructions. Such products support rapid-assembly construction methods, which use prefabricated dry elements to increase the efficiency of the construction. Wood-based alternatives to conventional concrete or masonry construction also open opportunities to reduce the carbon emissions.
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Timber-Glass Composite Beams: Experimental Study

https://research.thinkwood.com/en/permalink/catalogue1748
Year of Publication
2016
Topic
Connections
Mechanical Properties
Material
Timber-Glass Composite
Application
Beams
Author
Fadai, Alireza
Rinnhofer, Matthias
Winter, Wolfgang
Year of Publication
2016
Format
Conference Paper
Material
Timber-Glass Composite
Application
Beams
Topic
Connections
Mechanical Properties
Keywords
Load Bearing Capacity
Adhesives
Silicone
Epoxy
Strength
Stiffness
Conference
World Conference on Timber Engineering
Research Status
Complete
Notes
August 22-25, 2016, Vienna, Austria p. 4964-4971
Summary
Glued glass fronts are extensively applied and meet the highest standards. The objective of several research projects was the development of stiffening glass fronts to replace expansive frameworks or wind bracings. Furthermore, the use of timber-glass composite (TGC) beams was investigated. Within the research project "Load Bearing TimberGlass Composite Structures” (LBTGC) within the framework WoodWisdom-Net the short-term behavior of TGC-beams was investigated. Therefore, the Department of Structural Design and Timber Engineering (ITI) developed a beam-setup to test the load-bearing capacity of such elements under a four point bending test. Two different adhesives, silicone and epoxy, were used to connect timber and glass. The two adhesives vary in their strength and their stiffness. This has an immense influence on the behavior of the beams. This paper illustrates the results of various applications.
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Timber-Glass Composite: Long-term Behavior

https://research.thinkwood.com/en/permalink/catalogue1743
Year of Publication
2016
Topic
Serviceability
Mechanical Properties
Environmental Impact
Cost
Material
Timber-Glass Composite
Application
Hybrid Building Systems
Author
Fadai, Alireza
Nicklisch, Felix
Rinnhofer, Matthias
Year of Publication
2016
Format
Conference Paper
Material
Timber-Glass Composite
Application
Hybrid Building Systems
Topic
Serviceability
Mechanical Properties
Environmental Impact
Cost
Keywords
Stiffening
Multi-Story
Long-term
Load Bearing
Creep
Façade
Conference
World Conference on Timber Engineering
Research Status
Complete
Notes
August 22-25, 2016, Vienna, Austria p. 4921-4929
Summary
Up to now, structural sealant glazing façades have been extensively applied. They are at the cutting edge of technology and meet the highest standards. The objective of several research projects was to develop stiffening glass fronts, which replace expensive frameworks or wind bracings behind the large glass windows. Thus, potential applications of timber-glass composites (TGC) as alternative stiffening constructions for multi-story façades were investigated. Based on the results of those previous research projects the Department of Structural Design and Timber Engineering (ITI) coordinated the follow-up international research project “Load bearing timber-glass composites (LBTGC)” within the framework WoodWisdom-Net. In consideration of long-term behavior and practical application, the objective of the joint research project LBTGC was to develop load-bearing and stiffening TGC structures. With the purpose to meet the highest standards of cost effectiveness and environmental compatibility, alternative stiffening TGC constructions for multi-story facades were investigated. This paper illustrates these developments and application of TGC multi-story façades.
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Timber-Glass Composites: Calculation and Sizing Concept

https://research.thinkwood.com/en/permalink/catalogue1741
Year of Publication
2016
Topic
Mechanical Properties
Cost
Material
Timber-Glass Composite
Application
Hybrid Building Systems
Author
Hochhauser, Werner
Fadai, Alireza
Rinnhofer, Matthias
Winter, Wolfgang
Year of Publication
2016
Format
Conference Paper
Material
Timber-Glass Composite
Application
Hybrid Building Systems
Topic
Mechanical Properties
Cost
Keywords
Long-term
Load Bearing Capacity
Multi-Story
Conference
World Conference on Timber Engineering
Research Status
Complete
Notes
August 22-25, 2016, Vienna, Austria p. 4904-4912
Summary
Glued glass front constructions have long been in use and are generally considered the state of the art. However, with these solutions the glass serves no stiffening or bearing function, but merely functions as an outer cover. The objective of several research projects was to investigate alternative constructions of stiffening glass fronts, which replace St. Andrew’s cross wind bracings and costly frameworks. To this end, the Department of Structural Design and Timber Engineering (ITI) studied and optimized the load-bearing capacity of these existing construction components and subsequently developed simple calculation and sizing concepts. Based on the results of the research project „Timberglass composites: calculation and sizing concept (HGV III)“ the ITI coordinated the follow-up international research project “Load bearing timber-glass composites (LBTGC)” within the framework WoodWisdom-Net. In consideration of its long-term behavior and practical application, the objective of the research project LBTGC was to develop “stiffening timber-glass composite (TGC) structures”. With the purpose to meet the highest standards of cost effectiveness, alternative stiffening TGC constructions for multi-story buildings were investigated. This paper illustrates these developments.
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Wood Lightweight Concrete Composites Structural Elements: Ecological Impact

https://research.thinkwood.com/en/permalink/catalogue1521
Year of Publication
2016
Topic
Energy Performance
Environmental Impact
Material
Timber-Concrete Composite
Application
Hybrid Building Systems
Author
Fadai, Alireza
Borska, Andrea
Winter, Wolfgang
Year of Publication
2016
Format
Conference Paper
Material
Timber-Concrete Composite
Application
Hybrid Building Systems
Topic
Energy Performance
Environmental Impact
Keywords
Energy Efficiency
Ecological Impact
Lightweight Concrete
Europe
Conference
World Conference on Timber Engineering
Research Status
Complete
Notes
August 22-25, 2016, Vienna, Austria p. 623-631
Summary
Within several research projects and with the aim to optimize energy efficiency and ecological characteristics of structural building components the Department of Structural Design and Timber Engineering (ITI) at the Vienna University of Technology (VUT) developed several wood-based composite systems, which combine timber products with other conventional building materials and components. As a representative example for these developments, the application of wood lightweight concrete composites illustrates the extent of interrelationships in the development of complex system solutions when focusing on the increase of resource efficiency. The environmental assessment shows the ecological advantages of the developed concept compared to conventional concrete elements and underlines the potential for further developments. Assessment of structural wood-based wood lightweight concrete composites are illustrated in this paper.
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8 records – page 1 of 1.