asce 7 16 components and cladding

Instructional Materials Complementing FEMA 451, Design Examples Nonstructural Components 16 - 14 Load Combinations In ASCE 7-05, the redundancy factor, , is specified as 1.0 for nonstructural components. The new roof pressure coefficients are based on data from recent wind tunnel tests and then correlated with the results from full-scale tests performed at Texas Tech University. Note 5 of Figut 30.3-1 indicates that for roof slopes <= 10 Deg that we reduce these values by 10%, and since our roof slope meets this criteria we multiply the figure values by 0.9, Zone 4: GCp = +1.0*0.9 = +0.9 / -1.1*0.9 = -0.99, Zone 5: GCp = +1.0*0.9 = +0.9 / -1.4*0.9 = -1.26. This is the first edition of the Standard that has contained such provisions. Therefore this building is a low rise building. Since our Roof Angle (4.76 Deg) <= 10 Deg, then we can take h as the eave height (EHt). The comparison is for 10 different cities in the US with the modifiers for Exposure B taken at 15 feet above grade, location elevation factor, smallest applicable EWA, and reduced wind speeds from new maps applied from ASCE 7-16 as appropriate. However, the roof still needs to be designed appropriately assuming the solar panels are removed or not present. Yes, I consent to receiving emails from this website. Apply wind provisions for components and cladding, solar collectors, and roof mounted equipment. It could be used to hide equipment on the roof and it can also serve as a barrier to provide some protection from a person easily falling off of the roof. To do this we first need our mean roof height (h) and roof angle. ASCE 7 Hazard Tool. 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Mean . 2.8 ). It is necessary to look at the impact of the provisions as a whole, instead of individually, to understand how design procedures are affected.. Sign in to download full-size image Figure 2.8. Figures 2 and 3 illustrate the changes in the number of zones as well as the increases in the roof zone coefficients from ASCE 7-10 to 7-16 for gable roofs. The two design methods used in ASCE-7 are mentioned intentionally. This value is then multiplied by the value obtained from Fig 30.4-1. | Privacy Policy. ASCE 7 Main Wind Force Resisting Systemss, MWFRS, Components and Cladding, C&C, wind load pressure calculator for windload solutions. Prior versions of ASCE 7 have not specifically addressed loads on rooftop solar panels. With the simplified procedure of ASCE 7, Section 12.14, the seismic load effect s including overstrength factor in accordance with Section 12.14.3.2 and Chapter 2 of ASCE 7 shall be used. There are also many minor revisions contained within the new provisions. View More Donald R. Scott, P.E., S.E., F.SEI, F.ASCE, Simpson Strong-Tie Releases New Fastening Systems Catalog Highlighting Robust, Code-Compliant, and Innovative Product Lines, Simpson Strong-Tie Introduces Next-Generation, Easy-to-Install H1A Hurricane Tie Designed for Increased Resiliency and Higher Allowable Loads Using Fewer Fasteners, Holcim US Advances Sustainability Commitment with Expansion of ECOPactLow-Carbon Concrete, Simpson Strong-Tie Introduces Titen HD Heavy-Duty Mechanically Galvanized Screw Anchor, Code Listed for Exterior Environments. For roof, the external pressure coefficients are calculated from Figure 27.3-1 of ASCE 7-16 where q h = 1271.011 Pa. ASCE 7 -16 Chapter 13 discusses requirements for support of non-structural components such as cable trays.<o:p></o:p><o:p> </o:p> ASCE 7-16, Chapter 13, Item 3.3.1.1 gives some equations for horizontal forces for seismic design for components that include an importance factor. This calculator is for estimating purposes only & NOT for permit or construction. For each zone, we get the following values: We can then use all of these values to calculate the pressures for the C&C. It engages, enlightens, and empowers structural engineers through interesting, informative, and inspirational content. Other permissible wind design options which do not reflect updated wind loads in accordance with ASCE 7-16 include ICC-600 and AISI S230. Wind loads on components and cladding on all buildings and other structures shall be designed using one of the following procedures: 1. Hip roofs have several additional configurations that were not available in previous editions of ASCE 7. STRUCTURE USING Designer RCDC g per NSCP 2015/ASCE 7-10 C 360-10 by LRFD Method to STAAD ncrete Designer RCDC. Limitations: Building limitations are described in ASCE/SEI 7-16, Section 30.4 (Low-rise building with certain roof configurations and h 60 ft.) STRUCTURE magazine is the premier resource for practicing structural engineers. Design wind-uplift loads for roof assemblies typically are determined using ASCE 7-16's Chapter 30-Wind Loads: Components and Cladding. Using the same information as before we will now calculate the C&C pressures using this method. The component and cladding pressure coefficients, ( GCp ), for roofs on buildings with an h < 60 feet, have been revised significantly in ASCE 7-16. The provisions contained within ASCE 7-10 for determining the wind loads on rooftop equipment on buildings is limited to buildings with a mean roof height h 60 feet. This study focused on the non-hurricane areas of the country and used a new procedure that separated the available data by windstorm type and accounted for changes in the site exposure characteristics at the recording anemometers. 26.8 TOPOGRAPHIC EFFECTS 26.8.1 Wind Speed-Up over Hills, Ridges, and Escarpments Wind speed-up effects at isolated hills, ridges, To meet the requirements of Chapter 1 of the Standard, a new map is added for Risk Category IV buildings and other structures (Figure 3). Not many users of the Standard utilize the Serviceability Wind Speed Maps contained in the Commentary of Appendix C, but these four maps (10, 25, 50 & 100-year MRI) are updated to be consistent with the new wind speed maps in the body of the Standard. Design Example Problem 1a 3. Each of these provisions was developed from wind tunnel testing for enclosed structures. and components and cladding of building and nonbuilding structures. For flat roofs, the corner zones changed to an L shape with zone widths based on the mean roof height and an additional edge zone was added. Examples would be roof deck and metal wall panels. A Guide to ASCE - Roofing Contractors Association Of South Florida It says that cladding recieves wind loads directly. - Main Wind Force Resisting Wystem (MWFRS) - Components & Cladding (C&C) The software has the capability to calculate loads per: - ASCE 7-22 - ASCE 7-16 - ASCE 7-10 (version dependent) - ASCE 7-05 (version dependent) - Florida Building .