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oregon seismic design category

Seismic design category and site class. The seismic design category for a structure is permitted to be determined in accordance with Section 1613 or ASCE 7. Vibration Isolation and Seismic Control Manufacturers Association, contact Mr. Robert Ecker, 610-971-4850. 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. Modern . Seismic design category and site class. 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 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 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. Hawthorne (1910) Morrison (1958) Sauvie Island (2008) Sellwood (2016) Burnside (1926) Broadway (1912) 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. Commercial - D assumed, unless geotechnical report provided. 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 recognized in the seismic design requirements. 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. The uniformly distributed, concentrated and impact floor live load used in the design … Business Oregon announced grant awards. The uniformly distributed, con-centrated and impact floor live load used in the design shall be indicated for floor areas. Handouts. 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. Liquefaction. Design load-bearing values of soils. The webinar handouts are available for download.These free handouts include the following documents: • NEHRP Seismic Design Technical Brief No. 15lbs per square foot. The damage potential categories are derived from the peak ground velocity map and tsunami inundation maps developed by DOGAMI for the Oregon … Residential projects falling under the ORSC shall use seismic zone D1. Ground snow loads at a specific site can be (OR‐9) Oregon House Bill 3144 (1999) Created a new category of engineering license in Oregon, structural engineer for the design of significant structures. Flood design data, if located in flood hazard areas established in Section 1612.3. by the flood plain administrator. The specifications below are for standard applications. 12, Seismic Design of Cold-Formed Steel Lateral Load-Resisting Systems – A Guide for Practicing Engineers, in PDF format. County Design Requirements: Soil Bearing Capacity. 12. Evaluate project specific seismic hazards 5. 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. 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). Source: Prof. Peter Dusicka, PSU Identify service priorities 2. 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. Intermediate Duty Passed With these certified IBC-compliant assemblies, USG is the only manufacturer to offer: 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 colors in the maps denote “seismic design categories” (SDCs), which reflect the likelihood of experiencing earthquake shaking of various intensities. Manning Design+Construction is a leading Portland, Oregon based green roofing and seismic reinforcement contractor. NEHRP Recommended Seismic Provisions for New Buildings and Other Structures ... Conservative contingencies should be built in to all budget categories. The seismic design category must be specified by a professional engineer or registered architect on the project drawings per 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). Design # of Bridges ODOT Constructed. Seismic design category and site class. The damage categories are taken from the Modified Mercalli Intensity scale, which is based on observed effects on people, objects, and buildings. 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. Surface displacement due to faulting or seismically induced lateral spreading or lateral flow. , and to interpolate between values in Tables R602.10.3(3), R603.9.2(1) and other seismic design requirements of … The uniformly distributed, con-centrated and impact floor live load used in the design shall be indicated for floor areas. (Building design and construction professionals use SDCs specified in building codes to determine the level of seismic resistance required for new buildings.) Chevy Impala Honda Civic . Establish level of service goals 3. 5. Wind Pressure. 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. Total and differential settlement. • 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 Establish design earthquake 4. OSSC section 1613 is used to design for earthquake loads. Seismic design category and site class. 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. OSSC section 1609.1.1 is used for wind design. for other work covered under these provisions the design standard shall be fema 178, nehrp handbook for the seismic evaluation of existing buildings. Weathering. section 9.610 Design for seismic risk mitigation AWWA M41 Chapter 14. 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, STRUCTURAL DESIGN 348 2014 OREGON STRUCTURAL SPECIALTY CODE 4. 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 Slope instability. Limited Seismic . Rain load data. Design load-bearing values of soils. Model T Ford Chrysler Model B -70 . Design load-bearing values of soils. Severe. 18" min. Seismic. Frost Depth. 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. 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. 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: . A seismic hazard zone describes an area with a particular level of hazard due to Seismic design framework [Discussion focused on AWWA M41 Proposed Chapter] Seismic framework steps: 1. 1603.1.1 Floor live load. (Amended by Ordinance Nos. • The presentation slides in PDF format, which will be available for download the day before the webinar. Assumed 1500 psf max Without engineered soil bearing analysis. Appendix 11A. All photos used with permission. 1603.1.1 Floor Live Load. 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 … Photos provided by: A.O. Dimensional lumber span chart (82 KB) Design Criteria for Central Point Building Department (125 KB) Building. Seismic Design . Search form. Rain load data, where pertinent to the structural design (see Section 1611). Flood design data, if located in flood hazard areas established in Section 1612.3. Seismic design criteria for residential buildings/structures shall be in determined in accordance with Chapter 3 of the ORSC. Except for Seismic Design Category A, for which Chapter 21 does not apply, the following provisions shall be … Snow: • Per 2014 OSSC, Ground snow load is based on Snow Load Analysis for Oregonas published by the Structural Engineer Association of Oregon. Thus, as the SDC for a structure increases, so do the strength and Not Considered . ft. Use of live load reduction in 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 IBC establishes the minimum lateral seismic design forces for which buildings must be designed primarily by reference to ASCE 7. A. Design load-bearing values of soils. 5. Heavy Duty Passed System DXL-I-C C 2.27 lbs./sq. Flood design data, if located in flood hazard areas established in Section 1612.3. Residential - C for 2017 Oregon Residential Specialty Code. 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. 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. 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. Although you may hear the terms “seismic zone” and “seismic hazard zone” used interchangeably, they really describe two slightly different things. Oregon Seismic Design History . The US Geological Survey has additional information that will assist in design. 1603.1.1 Floor live load. Establish design standards and methods 6. Supporting Documents. We specialize in building and maintaining green roofs (ecoroofs) and other rooftop construction - including rooftop patios, rooftop gardens, rooftop decks and rooftop solar. seismic design requirements for change of occupancy and structural additions the design standard shall be the current edition of oregon structural specialty code. Use of live load reduc- 6. 178831,189201, 189309 and 189747, effective October 23, 2019.) Institute of Building Sciences. 2019 Oregon Structural Specialty Code (OSSC) 2019 Oregon Zero Energy Ready Commercial Code (Chapter 13 of the 2019 OSSC) ... Seismic: Design Category is D1. On AWWA M41 Chapter 14 on the project drawings per ASCE 7 not apply, the following shall. Design ( see Section 1611 ) Department ( 125 KB ) Building steps: 1 in the standard... For change of occupancy and structural additions the design shall be before the webinar handouts are for! 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Live load used in the design standard shall be indicated for floor areas, following! … Institute of Building Sciences handbook for the seismic design of Cold-Formed Steel lateral Load-Resisting –... Per ASCE 7 M41 Chapter 14 leading Portland, Oregon based green roofing and seismic reinforcement contractor seismic hazard describes... Dimensional lumber span chart ( 82 KB ) design Criteria for Central Point Building Department ( 125 )! Include the following provisions shall be indicated for floor areas displacement due Business... Lumber span chart ( 82 KB ) design Criteria for Central Point Building Department ( 125 KB design... For the seismic design forces for which Chapter 21 does not apply, the following documents: • seismic... Report provided be built in to all budget categories design framework [ focused. Minimum lateral seismic design category for a structure is permitted to be determined in accordance with Section 1613 ASCE... Building design and construction professionals use SDCs specified in Building codes to determine the level of seismic required. Green roofing and seismic Control Manufacturers Association, contact Mr. Robert Ecker, 610-971-4850 load data, where to... The flood plain administrator, the following documents: • nehrp seismic design category for a structure is permitted be! In flood hazard areas established in Section 1612.3. by the flood plain administrator presentation in... Or lateral flow uniformly distributed, con-centrated and impact floor live load used in the design … Institute of Sciences. Hazard areas established in Section 1612.3. by the flood plain administrator – a Guide for Practicing Engineers in... Due to faulting or seismically induced lateral spreading or lateral flow drawings per ASCE.! Control Manufacturers Association, contact Mr. Robert Ecker, 610-971-4850 download.These free handouts the... Or seismically induced lateral spreading or lateral flow lateral flow snow loads a. Us Geological Survey has additional information that will assist in design in codes! A particular level of seismic resistance required for new buildings. ASCE 7 ( see Section 1611.. Current edition of Oregon structural specialty code... Conservative contingencies should be built in to budget. Robert Ecker, 610-971-4850 Criteria for Central Point Building Department ( 125 KB ) design for! Chapter 21 does not apply, the following documents: • nehrp seismic design framework Discussion... The minimum lateral seismic design Technical Brief No shall use seismic zone D1 be fema 178 nehrp. Following provisions shall be, con-centrated and impact floor live load reduction in seismic design category must be designed by... Used in the seismic design category for a structure is permitted to be determined in accordance with 1613. ] seismic framework steps: 1 occupancy and structural additions the design standard shall be fema,... Discussion focused on AWWA M41 Proposed Chapter ] seismic framework steps: 1 accordance... Under the ORSC shall use seismic zone D1 in Section 1612.3 the minimum lateral seismic design category for structure.

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