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Numerical Investigation of Timber Screw Connection for Panelized Light Wood Frame Roof
https://orcid.org/http://orcid.org/0000-0001-9993-6383
This paper presents a numerical investigation of timber-to-timber connection with inclined self-tapping screws (STSs). This screw connection is designed for a panelized light wood frame gable roof. Panelized construction subdivides a building into several 2D elements, such as wall and floor panels. This construction method aids flexible design analogy to accommodate different architectural forms of building and simultaneously provides higher productivity in project delivery. However, panelized construction in North America is partially panelized due to the roof fabrication procedure. Currently, the roof production process is similar to the stick-built method. The roof structure typically consists of a series of triangulated trusses fabricated with dimension lumber with light-gauge steel plate connection. These triangulated trusses are often manufactured in a factory and brought to an offsite building prefabrication facility. The trusses are arranged on a platform according to the building plan, and sheathing is added to construct a roof module. Several roof modules are produced to build a complete house. Therefore, a relatively high transportation cost is observed in contrast to the wall and floor panel shipping. Moreover, the roof-building process is entirely manual. Consequently, the roof production line creates an imbalance in the overall building fabrication because of low productivity compared to other automated production lines. A holistic design approach is essential to improve roof production and move towards fully panelized construction. In this method, the gable roof structure is subdivided into several 2D panels, and the assembly is designed to incorporate the production and onsite installation factors. An efficient connection system is essential to connect the roof assembly and meet the structural requirements. This paper focuses on a self-tapping screw connection of the roof panel. This connection is assembled at the site to install the roof panel at the eave and support wall line. The connection test setup was designed following the ASTM D1761-12 to obtain the load–slip curve of the proposed screw connection under quasi-static monotonic load. A 3D solid finite element (FE) model of the connection was implemented in the ABAQUS software package and analysed under quasi-static loading conditions. Results of FE analysis show that the modelling approach can reasonably capture the expected performance of the proposed timber-to-timber joint.
Numerical Investigation of Timber Screw Connection for Panelized Light Wood Frame Roof
https://orcid.org/http://orcid.org/0000-0001-9993-6383
This paper presents a numerical investigation of timber-to-timber connection with inclined self-tapping screws (STSs). This screw connection is designed for a panelized light wood frame gable roof. Panelized construction subdivides a building into several 2D elements, such as wall and floor panels. This construction method aids flexible design analogy to accommodate different architectural forms of building and simultaneously provides higher productivity in project delivery. However, panelized construction in North America is partially panelized due to the roof fabrication procedure. Currently, the roof production process is similar to the stick-built method. The roof structure typically consists of a series of triangulated trusses fabricated with dimension lumber with light-gauge steel plate connection. These triangulated trusses are often manufactured in a factory and brought to an offsite building prefabrication facility. The trusses are arranged on a platform according to the building plan, and sheathing is added to construct a roof module. Several roof modules are produced to build a complete house. Therefore, a relatively high transportation cost is observed in contrast to the wall and floor panel shipping. Moreover, the roof-building process is entirely manual. Consequently, the roof production line creates an imbalance in the overall building fabrication because of low productivity compared to other automated production lines. A holistic design approach is essential to improve roof production and move towards fully panelized construction. In this method, the gable roof structure is subdivided into several 2D panels, and the assembly is designed to incorporate the production and onsite installation factors. An efficient connection system is essential to connect the roof assembly and meet the structural requirements. This paper focuses on a self-tapping screw connection of the roof panel. This connection is assembled at the site to install the roof panel at the eave and support wall line. The connection test setup was designed following the ASTM D1761-12 to obtain the load–slip curve of the proposed screw connection under quasi-static monotonic load. A 3D solid finite element (FE) model of the connection was implemented in the ABAQUS software package and analysed under quasi-static loading conditions. Results of FE analysis show that the modelling approach can reasonably capture the expected performance of the proposed timber-to-timber joint.
Numerical Investigation of Timber Screw Connection for Panelized Light Wood Frame Roof
https://orcid.org/http://orcid.org/0000-0001-9993-6383
This paper presents a numerical investigation of timber-to-timber connection with inclined self-tapping screws (STSs). This screw connection is designed for a panelized light wood frame gable roof. Panelized construction subdivides a building into several 2D elements, such as wall and floor panels. This construction method aids flexible design analogy to accommodate different architectural forms of building and simultaneously provides higher productivity in project delivery. However, panelized construction in North America is partially panelized due to the roof fabrication procedure. Currently, the roof production process is similar to the stick-built method. The roof structure typically consists of a series of triangulated trusses fabricated with dimension lumber with light-gauge steel plate connection. These triangulated trusses are often manufactured in a factory and brought to an offsite building prefabrication facility. The trusses are arranged on a platform according to the building plan, and sheathing is added to construct a roof module. Several roof modules are produced to build a complete house. Therefore, a relatively high transportation cost is observed in contrast to the wall and floor panel shipping. Moreover, the roof-building process is entirely manual. Consequently, the roof production line creates an imbalance in the overall building fabrication because of low productivity compared to other automated production lines. A holistic design approach is essential to improve roof production and move towards fully panelized construction. In this method, the gable roof structure is subdivided into several 2D panels, and the assembly is designed to incorporate the production and onsite installation factors. An efficient connection system is essential to connect the roof assembly and meet the structural requirements. This paper focuses on a self-tapping screw connection of the roof panel. This connection is assembled at the site to install the roof panel at the eave and support wall line. The connection test setup was designed following the ASTM D1761-12 to obtain the load–slip curve of the proposed screw connection under quasi-static monotonic load. A 3D solid finite element (FE) model of the connection was implemented in the ABAQUS software package and analysed under quasi-static loading conditions. Results of FE analysis show that the modelling approach can reasonably capture the expected performance of the proposed timber-to-timber joint.
Numerical Investigation of Timber Screw Connection for Panelized Light Wood Frame Roof
Lecture Notes in Civil Engineering
Desjardins, Serge (editor) / Poitras, Gérard J. (editor) / El Damatty, Ashraf (editor) / Elshaer, Ahmed (editor) / Islam, Md Saiful (author) / Chui, Ying Hei (author)
Canadian Society of Civil Engineering Annual Conference ; 2023 ; Moncton, NB, Canada
Proceedings of the Canadian Society for Civil Engineering Annual Conference 2023, Volume 10 ; Chapter: 18 ; 237-250
2024-09-03
14 pages
Article/Chapter (Book)
Electronic Resource
English
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