Design load-bearing values of soils. Design # of Bridges ODOT Constructed. 1603.1.1 Floor live load. Vibration Isolation and Seismic Control Manufacturers Association, contact Mr. Robert Ecker, 610-971-4850. Weathering. Seismic design category and site class. 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. 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). Total and differential settlement. Seismic design framework [Discussion focused on AWWA M41 Proposed Chapter] Seismic framework steps: 1. Evaluate project specific seismic hazards 5. The uniformly distributed, concentrated and impact floor live load used in the design … All photos used with permission. Manning Design+Construction is a leading Portland, Oregon based green roofing and seismic reinforcement contractor. The uniformly distributed, con-centrated and impact floor live load used in the design shall be indicated for floor areas. 5. Use of live load reduc- Residential - C for 2017 Oregon Residential Specialty Code. section 9.610 Severe. Wind Pressure. Rain load data. 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. 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. Oregon Seismic Design History . ft. 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 Commercial - D assumed, unless geotechnical report provided. 15lbs per square foot. 6. Seismic. 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. Hawthorne (1910) Morrison (1958) Sauvie Island (2008) Sellwood (2016) Burnside (1926) Broadway (1912) Seismic Design . Source: Prof. Peter Dusicka, PSU Heavy Duty Passed System DXL-I-C C 2.27 lbs./sq. The colors in the maps denote “seismic design categories” (SDCs), which reflect the likelihood of experiencing earthquake shaking of various intensities. 1603.1.1 Floor Live Load. Seismic design category and site class. Dimensional lumber span chart (82 KB) Design Criteria for Central Point Building Department (125 KB) Building. We specialize in building and maintaining green roofs (ecoroofs) and other rooftop construction - including rooftop patios, rooftop gardens, rooftop decks and rooftop solar. Ground snow loads at a specific site can be Flood design data, if located in flood hazard areas established in Section 1612.3. Design load-bearing values of soils. Handouts. STRUCTURAL DESIGN 348 2014 OREGON STRUCTURAL SPECIALTY CODE 4. 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. 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. Supporting Documents. The damage categories are taken from the Modified Mercalli Intensity scale, which is based on observed effects on people, objects, and buildings. Modern . 5. Assumed 1500 psf max Without engineered soil bearing analysis. 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 seismic design category for a structure is permitted to be determined in accordance with Section 1613 or 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. Thus, as the SDC for a structure increases, so do the strength and Limited Seismic . Rain load data, where pertinent to the structural design (see Section 1611). Slope instability. 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. 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, Except for Seismic Design Category A, for which Chapter 21 does not apply, the following provisions shall be … ... Conservative contingencies should be built in to all budget categories. seismic design requirements for change of occupancy and structural additions the design standard shall be the current edition of oregon structural specialty code. The uniformly distributed, con-centrated and impact floor live load used in the design shall be indicated for floor areas. OSSC section 1609.1.1 is used for wind design. 1603.1.1 Floor live load. Residential projects falling under the ORSC shall use seismic zone D1. The specifications below are for standard applications. 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