Protected: Calculating Site Specific Wall Wind Pressures For Windows, Doors, & Garage Doors
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ASCE-7
Design of Padel and Outdoor Sports Courts in the United States
Design of Padel and Outdoor Sports Courts in the United States Padel courts and outdoor sports facilities, while relatively simple in appearance, are governed in the United States by a comprehensive set of structural, safety, and regulatory requirements. Their design involves not only classical civil and structural engineering considerations, but also strict compliance with building …
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Engineering Tiki Huts in Florida: Tribal Exemption Limits and Code-Compliant Design
Engineering Tiki Huts in Florida: Tribal Exemption Limits and Code-Compliant Design Florida recognizes an exemption allowing Native American tribes—primarily the Seminole Tribe—to construct traditional chickee or tiki huts without full compliance with the Florida Building Code (FBC) when built on tribal lands. This exemption exists due to tribal sovereignty and cultural preservation of traditional building methods. Structural …
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ASCE 24-24 Explained: What’s New in Flood-Resistant Design for 2024 Building Codes
ASCE 24-2024 – Flood-Resistant Design for 2024 Building Codes The newly released ASCE 24-24, Flood Resistant Design and Construction, brings significant updates to how structures are designed in flood-prone areas. Referenced in the 2024 International Building Code (IBC) and other national standards, ASCE 24-24 replaces the 2014 edition and reflects the latest FEMA guidance, lessons …
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How To Calculate Porosity of a Louver – Sign – Fence Per ASCE 7
Porosity – How ‘Open’ A Surface Is – Explained The porosity of open structures is defined in ASCE-7 standard under ‘open signs’ (chapter 29, as of ASCE 7-22). This standard explains that the permeable (wind) porosity of a surface isn’t always equivalent to the calculated visual porosity. Left: mechanically articulating louvers that can reach a …
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Eave Height and Mean Roof Height – Per ASCE 7 – Building Codes
ASCE Mean Roof Height – An Introduction A building’s height plays a large role in calculating the magnitude of wind pressures on a structure. Wind will affect a building and its components differently if it can travel overtop of the structure, or if wind travels around the building sides. The ASCE 7 standard uses a …
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Open, Closed, Partially Open, and Partially Enclosed Structures.
Open, Closed, Partially Open & Partially Enclosed Structures When designing buildings subject to wind loads (e.g., according to ASCE 7‑16, Chapter 26.2), it is essential to determine how ‘enclosed’ a structure is. The enclosure classification strongly influences internal wind pressures, which in turn affect structural components (walls, windows, doors, roof systems, etc.). Four classifications are …
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What’s the difference between ground and roof snow load for patio covers?
When designing outdoor structures like patio covers, one of the most critical factors to consider is the ability to support snow loads. In regions that experience significant snowfall, the weight of snow can exert considerable pressure on a structure, making it essential to understand how snow accumulates and affects different parts of a building. Two …
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Snow Build-Over On Pergolas, Trellises & Mechanically Louvered Roofs (Cornice Effect)
Beware of Snow Buildup On Open Roof Areas An important and frequently overlooked requirement for checking snow loads on open roof systems such as pergolas, trellises, and mechanically louvered roofs is the snow ‘buildover’ effect. This occurs when the snow accumulates on open patio roof components to the point where it builds ‘up and over’, …
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Instructions for proper use of rooftop equipment wind pressure calculator
HELP PAGE For the Engineering Express® Rooftop Equipment Wind Pressure Calculator Note: See Limitations & Conditions of Use at the end of this article. Quick Links Access The Calculator View The Glossary Learn Even More Calculator Inputs 1) Ultimate Wind Velocity (Vult): This is the peak 3-second Ultimate gust wind speed. Consult your building …
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ASCE 7 Wall Zones 4 & 5 Explained
Understanding Wall Zones 4 & 5 Wind speed converts to wind pressure using a formula with many variables. There are many wind pressures on a building to one given wind speed. Zones 4 & 5 define two of those pressures on wall zones for buildings as described below. Key Terms Used In This Article About …
ASCE 7 Least Horizontal Dimension – Minimum Building Width
From ASCE 7 (ASCE 7-22,16, 10 & previous standards): The “Least Horizontal Dimension” can be taken as the shortest possible distance that can be taken between two parallel lines that fully encompass the building The Least Horizontal Dimension is further demonstrated as follows: Where ‘B’ is the Least Horizontal Dimension. For further reference, see our …
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ASCE 7 Basic Wind Speed
Per definition by ASCE 7-22, ASCE 7-16 & ASCE 7-10, Section 26.2 is defined as: BASIC WIND SPEED (V): Three-second gust speed at 33ft above the ground in Exposure C (see Exposure Categories) as determined in accordance with ASCE-7 Section 26.5.1. The wind shall be assumed to come from any horizontal direction. The basic …
How to Find Wind Speed & Snow Using the ASCE and ATC Hazards Tools by Location Websites
The 2 Ways To Find Wind Speed, Snow & Related Values For Projects in the US There are currently two websites as of January 2024 that allow access to finding a location’s ASCE wind speed, snow load, as well as other code minimum requirements. This article helps you find and navigate each site. Method 1: …
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Glossary of Engineering Terms
Glossary of Building Component Engineering Terms & Abbreviations These terms are published by Engineering Express to coincide with help menus for our online tools & published articles and as they relate to the Building Component Design industry. See also our FLOOD ENGINEERING GLOSSARY for more terms related to flood engineering. See Also SUNROOM TERMINOLOGY for …
Should a professional utilize the ASD (Allowable Stress Design) method or the LRFD (Load Resistance Factored Design) method when calculating the required wind pressure for use with tested-approved systems?
What’s The Difference Between ASD & LRFD Design? Put in layman’s terms, think of a wood plank designed to stretch between two supports. You’re going to walk across the piece of wood. The person that designed that plank needed to figure out if it will hold you. They had two options when designing: 1) Reduce …