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