Author: Ray Yu
Publisher:
ISBN:
Category :
Languages : en
Pages : 185
Book Description
Insulated concrete form (ICF) walls are used in low- to mid- rise construction and are cost-competitive with wood and masonry walls. In addition, these wall systems meet increasingly strict insulation requirements in building codes and therefore have the potential to be more cost-effective than wood construction. There is one drawback, however, and that is that their minimum reinforcing requirements are determined by ACI 318-19, including maximum spacing limits and minimum reinforcement ratios. These reinforcement requirements exceed what is required to meet strength demands. As such, there is a need to investigate the required spacing and amount of reinforcement. In addition, there is an interest in using steel fibers to replace some of the wall reinforcement. Previous studies have not investigated these design parameters. This research project utilized non-linear finite element modeling (FEM) to investigate the impact of reducing minimum steel requirements as well as the use of steel fiber in planar walls. The FEM was based on prior work and validated using in-plane and out-of-plane tests. The wall models were subjected to monotonically increasing shear in the out-of-plane direction and a constant, distributed axial load at the top of the wall. The reference wall geometry was selected to meet a single bay of a one-story structure as well as future test specimens. Using the validated modeling approach and reference geometry, a parametric study was conducted to investigate the impact of the following design parameters on the structural response of the wall: (1) bar spacing, (2) number of curtains of steel, as well as (3) steel fiber dosage in conjunction with the first two variables. The research findings are as follows: (1) the peak strength of the wall is determined by the tensile capacity of the plain or fiber-reinforced concrete (FRC), (2) the bar spacing and the number of curtains of steel only impact the residual strength increase after cracking, and (3) it appears possible to use FRC with starter bars for some walls as this concrete provides shear, moment and axial capacity and the starter bars transfers the forces to the foundation. The findings suggest more economical bar layouts for ICF walls are possible without compromising the structural response.
Minimum Design Requirements for Insulated Concrete Form Wall Systems
Author: Ray Yu
Publisher:
ISBN:
Category :
Languages : en
Pages : 185
Book Description
Insulated concrete form (ICF) walls are used in low- to mid- rise construction and are cost-competitive with wood and masonry walls. In addition, these wall systems meet increasingly strict insulation requirements in building codes and therefore have the potential to be more cost-effective than wood construction. There is one drawback, however, and that is that their minimum reinforcing requirements are determined by ACI 318-19, including maximum spacing limits and minimum reinforcement ratios. These reinforcement requirements exceed what is required to meet strength demands. As such, there is a need to investigate the required spacing and amount of reinforcement. In addition, there is an interest in using steel fibers to replace some of the wall reinforcement. Previous studies have not investigated these design parameters. This research project utilized non-linear finite element modeling (FEM) to investigate the impact of reducing minimum steel requirements as well as the use of steel fiber in planar walls. The FEM was based on prior work and validated using in-plane and out-of-plane tests. The wall models were subjected to monotonically increasing shear in the out-of-plane direction and a constant, distributed axial load at the top of the wall. The reference wall geometry was selected to meet a single bay of a one-story structure as well as future test specimens. Using the validated modeling approach and reference geometry, a parametric study was conducted to investigate the impact of the following design parameters on the structural response of the wall: (1) bar spacing, (2) number of curtains of steel, as well as (3) steel fiber dosage in conjunction with the first two variables. The research findings are as follows: (1) the peak strength of the wall is determined by the tensile capacity of the plain or fiber-reinforced concrete (FRC), (2) the bar spacing and the number of curtains of steel only impact the residual strength increase after cracking, and (3) it appears possible to use FRC with starter bars for some walls as this concrete provides shear, moment and axial capacity and the starter bars transfers the forces to the foundation. The findings suggest more economical bar layouts for ICF walls are possible without compromising the structural response.
Publisher:
ISBN:
Category :
Languages : en
Pages : 185
Book Description
Insulated concrete form (ICF) walls are used in low- to mid- rise construction and are cost-competitive with wood and masonry walls. In addition, these wall systems meet increasingly strict insulation requirements in building codes and therefore have the potential to be more cost-effective than wood construction. There is one drawback, however, and that is that their minimum reinforcing requirements are determined by ACI 318-19, including maximum spacing limits and minimum reinforcement ratios. These reinforcement requirements exceed what is required to meet strength demands. As such, there is a need to investigate the required spacing and amount of reinforcement. In addition, there is an interest in using steel fibers to replace some of the wall reinforcement. Previous studies have not investigated these design parameters. This research project utilized non-linear finite element modeling (FEM) to investigate the impact of reducing minimum steel requirements as well as the use of steel fiber in planar walls. The FEM was based on prior work and validated using in-plane and out-of-plane tests. The wall models were subjected to monotonically increasing shear in the out-of-plane direction and a constant, distributed axial load at the top of the wall. The reference wall geometry was selected to meet a single bay of a one-story structure as well as future test specimens. Using the validated modeling approach and reference geometry, a parametric study was conducted to investigate the impact of the following design parameters on the structural response of the wall: (1) bar spacing, (2) number of curtains of steel, as well as (3) steel fiber dosage in conjunction with the first two variables. The research findings are as follows: (1) the peak strength of the wall is determined by the tensile capacity of the plain or fiber-reinforced concrete (FRC), (2) the bar spacing and the number of curtains of steel only impact the residual strength increase after cracking, and (3) it appears possible to use FRC with starter bars for some walls as this concrete provides shear, moment and axial capacity and the starter bars transfers the forces to the foundation. The findings suggest more economical bar layouts for ICF walls are possible without compromising the structural response.
Design Criteria for Insulating Concrete Form Wall Systems
Author: John J. Roller
Publisher:
ISBN:
Category : Concrete walls
Languages : en
Pages : 56
Book Description
Publisher:
ISBN:
Category : Concrete walls
Languages : en
Pages : 56
Book Description
Structural Design of Insulating Concrete Form Walls in Residential Construction
Author: NAHB Research Center, Inc
Publisher:
ISBN: 9780893121969
Category : Concrete houses
Languages : en
Pages : 202
Book Description
Publisher:
ISBN: 9780893121969
Category : Concrete houses
Languages : en
Pages : 202
Book Description
2018 International Plumbing Code Turbo Tabs, Loose-Leaf Version
Author: International Code Council
Publisher:
ISBN: 9781609837211
Category : Education
Languages : en
Pages :
Book Description
An organized, structured approach to the 2018 INTERNATIONAL PLUMBING CODE Loose leaf Version, these TURBO TABS will help you target the specific information you need, when you need it. Packaged as pre-printed, full-page inserts that categorize the IPC into its most frequently referenced sections, the tabs are both handy and easy to use. They were created by leading industry experts who set out to develop a tool that would prove valuable to users in or entering the field.
Publisher:
ISBN: 9781609837211
Category : Education
Languages : en
Pages :
Book Description
An organized, structured approach to the 2018 INTERNATIONAL PLUMBING CODE Loose leaf Version, these TURBO TABS will help you target the specific information you need, when you need it. Packaged as pre-printed, full-page inserts that categorize the IPC into its most frequently referenced sections, the tabs are both handy and easy to use. They were created by leading industry experts who set out to develop a tool that would prove valuable to users in or entering the field.
Insulated concrete form walls integrated with mechanical systems in a cold climate test house
Author: D. Mallay
Publisher:
ISBN:
Category : Buildings
Languages : en
Pages : 51
Book Description
Transitioning from standard light frame to a thermal mass wall system in a high performance home will require a higher level of design integration with the mechanical systems. The much higher mass in the ICF wall influences heat transfer through the wall and affects how the heating and cooling system responds to changing outdoor conditions. This is even more important for efficient, low-load homes with efficient heat pump systems in colder climates where the heating and cooling peak loads are significantly different from standard construction. This report analyzes a range of design features and component performance estimates in an effort to select practical, cost-effective solutions for high performance homes in a cold climate.
Publisher:
ISBN:
Category : Buildings
Languages : en
Pages : 51
Book Description
Transitioning from standard light frame to a thermal mass wall system in a high performance home will require a higher level of design integration with the mechanical systems. The much higher mass in the ICF wall influences heat transfer through the wall and affects how the heating and cooling system responds to changing outdoor conditions. This is even more important for efficient, low-load homes with efficient heat pump systems in colder climates where the heating and cooling peak loads are significantly different from standard construction. This report analyzes a range of design features and component performance estimates in an effort to select practical, cost-effective solutions for high performance homes in a cold climate.
Insulated Concrete Form Walls Integrated With Mechanical Systems in a Cold Climate Test House
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 63
Book Description
Transitioning from standard light frame to a thermal mass wall system in a high performance home will require a higher level of design integration with the mechanical systems. The much higher mass in the ICF wall influences heat transfer through the wall and affects how the heating and cooling system responds to changing outdoor conditions. This is even more important for efficient, low-load homes with efficient heat pump systems in colder climates where the heating and cooling peak loads are significantly different from standard construction. This report analyzes a range of design features and component performance estimates in an effort to select practical, cost-effective solutions for high performance homes in a cold climate. Of primary interest is the influence of the ICF walls on developing an effective air sealing strategy and selecting an appropriate heating and cooling equipment type and capacity. The domestic water heating system is analyzed for costs and savings to investigate options for higher efficiency electric water heating. A method to ensure mechanical ventilation air flows is examined. The final solution package includes high-R mass walls, very low infiltration rates, multi-stage heat pump heating, solar thermal domestic hot water system, and energy recovery ventilation. This solution package can be used for homes to exceed 2012 International Energy Conservation Code requirements throughout all climate zones and achieves the DOE Challenge Home certification.
Publisher:
ISBN:
Category :
Languages : en
Pages : 63
Book Description
Transitioning from standard light frame to a thermal mass wall system in a high performance home will require a higher level of design integration with the mechanical systems. The much higher mass in the ICF wall influences heat transfer through the wall and affects how the heating and cooling system responds to changing outdoor conditions. This is even more important for efficient, low-load homes with efficient heat pump systems in colder climates where the heating and cooling peak loads are significantly different from standard construction. This report analyzes a range of design features and component performance estimates in an effort to select practical, cost-effective solutions for high performance homes in a cold climate. Of primary interest is the influence of the ICF walls on developing an effective air sealing strategy and selecting an appropriate heating and cooling equipment type and capacity. The domestic water heating system is analyzed for costs and savings to investigate options for higher efficiency electric water heating. A method to ensure mechanical ventilation air flows is examined. The final solution package includes high-R mass walls, very low infiltration rates, multi-stage heat pump heating, solar thermal domestic hot water system, and energy recovery ventilation. This solution package can be used for homes to exceed 2012 International Energy Conservation Code requirements throughout all climate zones and achieves the DOE Challenge Home certification.
Insulating Concrete Forms for Residential Design and Construction
Author: Pieter A. VanderWerf
Publisher: McGraw Hill Professional
ISBN: 9780070670334
Category : Architecture
Languages : en
Pages : 368
Book Description
Insulating concrete forms, the most requested new material in home building today, increases energy efficiency, design flexibility, strength and durability. This step-by-step illustrated guide shows designers, architects, and engineers how to put this cutting-edge technology to work. Eight pages of color photos show homes recently constructed with this technology. 178 illus.
Publisher: McGraw Hill Professional
ISBN: 9780070670334
Category : Architecture
Languages : en
Pages : 368
Book Description
Insulating concrete forms, the most requested new material in home building today, increases energy efficiency, design flexibility, strength and durability. This step-by-step illustrated guide shows designers, architects, and engineers how to put this cutting-edge technology to work. Eight pages of color photos show homes recently constructed with this technology. 178 illus.
Residential Code of New York State, 2010 Edition
Author: New York (State)
Publisher: Thomas Hart
ISBN:
Category : Building laws
Languages : en
Pages : 642
Book Description
Publisher: Thomas Hart
ISBN:
Category : Building laws
Languages : en
Pages : 642
Book Description
2012 Michigan Residential Code
Author: ICC/Michigan
Publisher:
ISBN: 9781609832070
Category :
Languages : en
Pages :
Book Description
Publisher:
ISBN: 9781609832070
Category :
Languages : en
Pages :
Book Description
Building Code Requirements for Structural Concrete
Author: ACI Committee 318
Publisher: American Concrete Institute
ISBN: 0870310658
Category : Building
Languages : en
Pages : 30
Book Description
Publisher: American Concrete Institute
ISBN: 0870310658
Category : Building
Languages : en
Pages : 30
Book Description