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วันจันทร์ที่ 2 มกราคม พ.ศ. 2555
New House Plans Construction Drawings, Part 1
วันอังคารที่ 2 สิงหาคม พ.ศ. 2554
How to design Roof Truss layout and related Truss drawings
When we start designing a house we first create a truss layout which shows places where trusses will be fit in the roof, anticipated shapes of the top & bottom of the truss, plate heights and estimation of load on the trusses. The builder then gives this layout to its truss supplier. The truss supplier prepares actual design of each individual truss according to our roof design layout. The truss supplier may propose some modifications in the design because they have slightly different preferences to construct the truss using available proprietary software and CAD tools. Truss drawings as prepared by the truss supplier are then sent to the Architect for a review.
The architect forward these drawings to a truss engineer who further examines various parameters such as the size of home, dead/live loads based on geometry, required truss span and roof pitches and give final go ahead for fabrication. The completed truss drawings show precise placement of trusses in the roof structure and precise inter-relation of truss members.
A truss is normally designed to transmit dead and live loads to other members in the structure. With regards to new home construction, a dead load is the burden of static components like the truss itself, roof beams, roofing materials, sheathing and ceiling material. A live load is dynamic in nature, such as wind, snow, furniture, movable loads, etc. Trusses are crafted to prevent flexing and bending and are usually tied together with tooth like metal plates made from galvanized steel or metal.
The common truss contains parallel sides so as to have a nearly same pitch on both sides of a center point. A lot depends on the interior ceiling design and roof pitches of your home when designing a layout for roof truss. Roof truss design allows flexibility to change the interior space as the truss normally be placed on an outside wall, leaving the interior space free for you to design and decorate accordingly. Trusses come in a wide range of designs giving you a creative freedom to change the ceiling design!
For any queries related to roof truss design and related shop drawings email us at info@outsourcingsteeldetailing.com
Contact us at http://www.outsourcingsteeldetailing.com/contact.php for more information.
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วันศุกร์ที่ 29 กรกฎาคม พ.ศ. 2554
New House Plans Construction Drawings, Part 2
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วันศุกร์ที่ 6 พฤษภาคม พ.ศ. 2554
Scale Drawings Of House Plans
The scale drawings of the architectural designer or architect in a certain way, resemble the assembly drawings of the machine designer. The characteristic of the designers scale drawings are that it deals with in general conditions of the home and clarifies them by symbols rather than to showing each feature exactly as it would look in real life.
To give an example, a fireplace is shown on a scale drawing by dimensioning to its center line on the plan. Then on the detailed drawings, everything is thoroughly shown and completely dimensioned. So in other words a scale drawing is merely an general representation while the more accurate description is left for the detail sheet.
To determine a scale, the first thing to be decided on the scale drawings is the scale that they will be drawn at. This is determined by the size of the building and the degree we want to go into detail.
The average residential drawing is drawn at a scale of 1/4” = 1’- 0” (one quarter inch equals one foot and zero inches), while a very large house must be drawn at a scale of 1/8” = 1’ – 0” (one eight inch equals one foot and zero inches). The size of the sheet is often determined by the scale of the drawing.
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วันจันทร์ที่ 21 มิถุนายน พ.ศ. 2553
Design of Roof Truss Layout and Correct Framing Drawings
Roof trusses are widely used in residential and wood framed commercial projects. A roof truss is usually cost-effective and quick in construction than a roof framed with rafters. A roof truss is crafted from small pieces of lumber; it is then fabricated in a shop and after that set up at the site.
When we start designing a house we first create a truss layout which shows places where trusses will be fit in the roof, anticipated shapes of the top & bottom of the truss, plate heights and estimation of load on the trusses. The builder then gives this layout to its truss supplier. The truss supplier prepares actual design of each individual truss according to our roof design layout. The truss supplier may propose some modifications in the design because they have slightly different preferences to construct the truss using available proprietary software and CAD tools. Truss drawings as prepared by the truss supplier are then sent to the Architect for a review.
The architect forwards these drawings to a truss engineer who further examines various parameters such as the size of home, dead/live loads based on geometry, required truss span and roof pitches and give final go ahead for fabrication. The completed truss drawings show precise placement of trusses in the roof structure and precise inter-relation of truss members.
A truss is normally designed to transmit dead and live loads to other members in the structure. With regards to new home construction, a dead load is the burden of static components like the truss itself, roof beams, roofing materials, sheathing and ceiling material. A live load is dynamic in nature, such as wind, snow, furniture, movable loads, etc. Trusses are crafted to prevent flexing and bending and are usually tied together with tooth like metal plates made from galvanized steel or metal.
The common truss contains parallel sides so as to have a nearly same pitch on both sides of a center point. A lot depends on the interior ceiling design and roof pitches of your home when designing a layout for roof truss. Roof truss design allows flexibility to change the interior space as the truss normally be placed on an outside wall, leaving the interior space free for you to design and decorate accordingly. Trusses come in a wide range of designs giving you a creative freedom to change the ceiling design!
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