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(OR‐9) Oregon House Bill 3144 (1999) Created a new category of engineering license in Oregon, structural engineer for the design of significant structures. Handouts. Rain load data, where pertinent to the structural design (see Section 1611). Photos provided by: A.O. Source: CISCA zones 3-4 • “Powder-driven shot-in-anchors” (PAF’s), when used for seismic Categories D, E and F, shall have an ICC-ES approval for seismic The design wind speeds (3-second gust) for WA County are: Wind exposure category must be determined by the Engineer of Record based upon site conditions. Assumed 1500 psf max Without engineered soil bearing analysis. Institute of Building Sciences. Seismic design category and site class. Among the topics addressed are the national seismic hazard maps developed by the U.S. Geological Survey (USGS); the seismic design maps incorporated in the building codes and standard, as well as an overview of the seismic design procedures contained in the building codes. Severe. Business Oregon announced grant awards. Residential - C for 2017 Oregon Residential Specialty Code. Hawthorne (1910) Morrison (1958) Sauvie Island (2008) Sellwood (2016) Burnside (1926) Broadway (1912) Seismic Design . Design load-bearing values of soils. The uniformly distributed, concentrated and impact floor live load used in the design … Supporting Documents. 2017 Oregon Residential Specialty Code (ORSC) > 6 Wall Construction > R606 General Masonry Construction > R606.12 Seismic Requirements > R606.12.2 Seismic Design Category C > R606.12.2.2 Design of Elements Not Part of the Lateral Force-Resisting System Snow: • Per 2014 OSSC, Ground snow load is based on Snow Load Analysis for Oregonas published by the Structural Engineer Association of Oregon. Heavy Duty Passed System DXL-I-C C 2.27 lbs./sq. The purpose of this paper is to offer a concise history of those standards that govern seismic design in the State of Oregon and provide a Design and Construction FEMA 232 ─ June 2006 Prepared by the Building Seismic Safety Council for the Federal Emergency Management Agency of the Department of Homeland Security National Institute of Building Sciences Washington, D.C. Use of live load reduction in Seismic design category and site class. Establish design earthquake 4. Vibration Isolation and Seismic Control Manufacturers Association, contact Mr. Robert Ecker, 610-971-4850. The project requirements which include the seismic design category can be found in Section 1 of the specification and on the first page of the structural drawings. The seismic design category for a structure is permitted to be determined in accordance with Section 1613 or ASCE 7. Flood design data, if located in flood hazard areas established in Section 1612.3. 1603.1.1 Floor Live Load. The seismic design category must be specified by a professional engineer or registered architect on the project drawings per ASCE 7. A seismic zone is used to describe an area where earthquakes tend to focus; for example, the New Madrid Seismic Zone in the Central United States. The damage categories are taken from the Modified Mercalli Intensity scale, which is based on observed effects on people, objects, and buildings. Manning Design+Construction is a leading Portland, Oregon based green roofing and seismic reinforcement contractor. Per ORSC Figure 301.2(2), all residential buildings/structures located in the City of Gresham or areas where it has jurisdiction shall be assigned Seismic Design Category D 1 Search form. All locations within or administered by the City of Portland are classified as Seismic Design Category D in accordance with the procedures of the OSSC. Limited Seismic . , and to interpolate between values in Tables R602.10.3(3), R603.9.2(1) and other seismic design requirements of … 12, Seismic Design of Cold-Formed Steel Lateral Load-Resisting Systems – A Guide for Practicing Engineers, in PDF format. Seismic design criteria for residential buildings/structures shall be in determined in accordance with Chapter 3 of the ORSC. 6. seismic design requirements for change of occupancy and structural additions the design standard shall be the current edition of oregon structural specialty code. Appendix 11A. Thus, as the SDC for a structure increases, so do the strength and OSSC section 1613 is used to design for earthquake loads. Not Considered . Surface displacement due to faulting or seismically induced lateral spreading or lateral flow. 15lbs per square foot. 5. Modern . Design load-bearing values of soils. Establish level of service goals 3. The colors in the maps denote “seismic design categories” (SDCs), which reflect the likelihood of experiencing earthquake shaking of various intensities. If you are unsure of the answer to any of the above questions try checking the structural notes page of your project documents where they are generally listed, or take a moment to read Understanding Seismic Design Categories (SDC).Seismic requirements can be tricky, if you would rather have someone walk you through your project to figure out the requirements please take a moment and … 12. 1603.1.1 Floor live load. Seismic design category shall be "D" unless site specific conditions increase design category to "E or F" (reference codes American Society of Civil Engineers ASCE/SEI 7-05). Evaluate project specific seismic hazards 5. The provisions of this chapter prescribe the seismic design requirements for existing buildings undergoing changes of occupancy, additions, alterations, catastrophic damage, fire, or earthquake repair, or mandatory or voluntary seismic strengthening. The uniformly distributed, con-centrated and impact floor live load used in the design shall be indicated for floor areas. ... Conservative contingencies should be built in to all budget categories. A seismic hazard zone describes an area with a particular level of hazard due to Weathering. section 9.610 Ground snow loads at a specific site can be (Building design and construction professionals use SDCs specified in building codes to determine the level of seismic resistance required for new buildings.) The uniformly distributed, con-centrated and impact floor live load used in the design shall be indicated for floor areas. For structures assigned to Seismic Design Category C, D, E or F, a geotechnical investigation shall be conducted, and shall include an evaluation of all of the following potential geologic and seismic hazards: . Standard Seismic Applications Guide - IBC Category D, E, F The following are all the IBC Category D,E,F 2 Code Requirements for lay-in acoustical panels and direct-hung acoustical tiles. 1603.1.1 Floor live load. STRUCTURAL DESIGN 348 2014 OREGON STRUCTURAL SPECIALTY CODE 4. Seismic. Total and differential settlement. Oregon Seismic Design History . Source: Prof. Peter Dusicka, PSU The specifications below are for standard applications. (Amended by Ordinance Nos. Smith Water Products Company AdobeAir, Inc. Amber/Booth Company American Standard, Inc. ITT Industries/Bell & Gossett ITT Industries/Precision Stanless Bryan Steam, LLC Aqua-Chem, Inc. • OSSC Section 1613.6 amending ASCE 7, Section 13.5.6.2.2, Item c, “suspended ceilings” in Seismic Design Categories D through F as follows: c. For ceiling areas exceeding 1,000 square feet (13.4 m 2), horizontal Identify service priorities 2. Use of live load reduc- 2019 Oregon Structural Specialty Code (OSSC) 2019 Oregon Zero Energy Ready Commercial Code (Chapter 13 of the 2019 OSSC) ... Seismic: Design Category is D1. Design load-bearing values of soils. The IBC establishes the minimum lateral seismic design forces for which buildings must be designed primarily by reference to ASCE 7. OSSC section 1609.1.1 is used for wind design. Except for Seismic Design Category A, for which Chapter 21 does not apply, the following provisions shall be … for other work covered under these provisions the design standard shall be fema 178, nehrp handbook for the seismic evaluation of existing buildings. Liquefaction. ft. Intermediate Duty Passed With these certified IBC-compliant assemblies, USG is the only manufacturer to offer: Seismic design category and site class. The US Geological Survey has additional information that will assist in design. For further information on Building Seismic Safety Council activities and products, see the Council’s web-site (www.bssconline.org) or write the Building Seismic Safety Council, National Institute of Building Sciences, 1090 Vermont, Avenue, The damage potential categories are derived from the peak ground velocity map and tsunami inundation maps developed by DOGAMI for the Oregon … Seismic design category and site class. 178831,189201, 189309 and 189747, effective October 23, 2019.) Flood design data, if located in flood hazard areas established in Section 1612.3. A. NEHRP Recommended Seismic Provisions for New Buildings and Other Structures For the list of exemptions, refer to the Oregon Structural Specialty Code 2014 Edition, ... Our area is typically in seismic design category D for commercial buildings and D1 for residential buildings. Model T Ford Chrysler Model B -70 . System Design Seismic Design Maximum Ceiling Allowable Suspension Test Result Category System Weight Tested System Load Carrying Capacity System DXL-H D, E, F 2.50 lbs./sq. Design # of Bridges ODOT Constructed. 4/4/19 Business Oregon ... school projects must design the retrofit to seismic life safety standards unless the project is for a shelter which then must be designed to seismic immediate occupancy standards. Wind Pressure. potential seismic risk as represented by the Seismic Design Category increases, the Provisions requires progressively more rigorous seismic design and construction as a means of attempting to ensure that all buildings provide an acceptable risk to the public. 18" min. Rain load data. recognized in the seismic design requirements. Frost Depth. County Design Requirements: Soil Bearing Capacity. Chevy Impala Honda Civic . The webinar handouts are available for download.These free handouts include the following documents: • NEHRP Seismic Design Technical Brief No. Design load-bearing values of soils. Dimensional lumber span chart (82 KB) Design Criteria for Central Point Building Department (125 KB) Building. Design for seismic risk mitigation AWWA M41 Chapter 14. With the recent global seismic activity, there is a renewed interest in the steps the State of Oregon has taken concerning the seismic design and construction of structures. Although you may hear the terms “seismic zone” and “seismic hazard zone” used interchangeably, they really describe two slightly different things. Seismic Design . assigned to Seismic Design Category C, D, E or F. 21.1.1.7 - Structural systems designated as part of the seismic force-resisting system shall be restricted to those permitted by ASCE 7. structure in such a manner that they can support a design load of not less than 200 pounds or the actual design load, with a safety factor of 2, whichever is greater (figure 6b). Commercial - D assumed, unless geotechnical report provided. Slope instability. Establish design standards and methods 6. All photos used with permission. Flood design data, if located in flood hazard areas established in Section 1612.3. by the flood plain administrator. 5. While ASCE 7 allows use of a number of analysis procedures, the equivalent lateral force (ELF) procedure is most commonly used for seismic design of buildings in the U.S. The value of S DS determined in accordance with Section 1613.3 of the International Building Code is permitted to be used to set the seismic design category in accordance with Table R301.2.2.1.1. ft. Residential projects falling under the ORSC shall use seismic zone D1. We specialize in building and maintaining green roofs (ecoroofs) and other rooftop construction - including rooftop patios, rooftop gardens, rooftop decks and rooftop solar. • The presentation slides in PDF format, which will be available for download the day before the webinar. Seismic design framework [Discussion focused on AWWA M41 Proposed Chapter] Seismic framework steps: 1. Flood plain administrator ( 125 KB ) design Criteria for Central Point Building Department ( KB! 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Design Technical Brief No M41 Proposed Chapter ] seismic framework steps: 1 oregon seismic design category.

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