V total design lateral force or shear at the base of the buildin cs seismic response coefficient w total gravity load of the building located or assigned to leve s ds design spectra response acceleration in the short period range see asce 702 section 9. Calculation of equivalent lateral seismic forces based on asce 702 and ktp 289 conference paper pdf available may 2012 with 1,487 reads how we measure reads. Asce standard ascesei 7 16 minimum design loads and associated criteria for buildings and other structures published by the american society of civil engineers. Development of seismic design methodologies for rigid wall. Asce 498 seismic analysis of safetyrelated nuclear structures building code requirements for masonry structures aci 53002asce 502tms 40202 and speci. Guide to the seismic load provisions of asce 710 provides clear, authoritative explanations of the seismic design provisions contained in minimum design loads for buildings and other structures, standard ascesei 710. Introduction the working group 7 wg7 earthquake resistant structures of the international association for bridge and structural engineering iabse has proposed, inside its field of activities and objectives, studies of comparisons among seismic codes. Seismic design of reinforced concrete special moment frames. Building and fire research laboratory national institute of standards and. New ground motion requirements of asce 7 16 bssc webinar, july 28, 2017 charlie kircher usgs open file reports documenting development of united states national seismic hazard maps 2008 asce 7 10 and 2014 asce 7 16 usgs ofr 20081128 usgs ofr 20141091.
The parameters of the seismic simplified analysis according to the equivalent lateral force method depend on a seismic code and a method of defining values of the fundamental periods selected in the seismic analysis dialog. Using its ztechnology, the company has developed and manufactured a trio of entirely cablefree nodal seismic data. T l longperiod transition period, specified according to the asce 7 05 code, as shown in the figures 2215 through 2220. R response modification coefficient, as specified in asce 7 05, tables 12. Minimum design loads for buildings and other structures.
The seismic base shear v in a given direction is determined in accordance with the following equation. A more precise term is repeated seismic, because that is actually what is done. Psdm seismic volume by predicted uncertainty values and compare the modified seismic cube to the original one figures 2ef. Under the new asce 7 16 standard, using a site class d response spectrum for the same building will result in a 60 to 80 percent increase in seismic demand relative to asce 7 10. The 3d seismic method involves the acquisition of seismic data on an areal grid. The asce 7 standard minimum design loads for buildings and other structures is the document the international building code ibc relies on for its structural and nonstructural requirements. Detailed comparison of structural provisions of 2005 asce. Generally following the organization of the seismic chapters in asce 7 10, this handy reference briefly summarizes each change to the seismic provisions that might affect actual practice andor enforcement and then presents the precise wording. Structural interpretation of seismic data from an xy field. Seismic switches seismic switches in a centralized recording system are implemented as a separate acquisition module with its own power supply. Ie importance factor, as specified in asce 7 05, section 11. With clear, concise language seismic loads illustrates the key concepts and guides structural engineers in applying the most current. The proposed change is to adopt the expanded commentary, because it supports asce 75 10, which has already been adopted as the basis for the 2014 edition of the nehrp 6 recommended seismic provisions.
The structural interpretation of the seismic data is presented in figures 4 and 5. The seismic force, e, appears in load combinations. Asce 705, was the standard referenced in the 2006 and 2009 ibcs, but has now been substituted by asce 710 in the 2012 ibc. Advanced seismic interpretation is a course designed for graduate students. This is how we make our communities safer, and how we make life better. Sc10 new structural and geotechnical seismic design requirements in the 2015 nehrp. Every leader must go through the seven seismic shifts to acquire the skills and the mindset needed to evolve from. The seismic importance factor ie is used in the seismic response coefficient cs equations with the intent to raise the yield level for important structures e. Significant changes from asce 705 to asce 710, part 1. Comparison of the seismic provisions of the 1997 uniform building code to the 1997 nehrp recommended provisions s. Processing and interpretation techniques exploit the dense subsurface sampling provided by the 3d data volume.
Seismic loads is an essential companion to standard asce sei 7 10 for all engineers, architects, and construction professionals who work on buildings in seismically active locations. Guide to the seismic load provisions of asce 705 provides authoritative explanations of the seismic provisions offered in minimum design loads for buildings and other structures, ascesei 705. Tu n118 06 estimation of uncertainties in fault lateral. Instructional material complementing fema 451, design examples seismic load analysis 9 7 provide 5% damped firm rock site class b spectral accelerations s s and s 1 or 2% in 50 year probability or 1. Little in the way of detail is visible at this band width as shown in figure 1. Buildings and other structures located within california that are owned by. This standard provides requirements for dead, live, soil, flood, wind, snow, rain, ice, and earthquake loads, and their combinations that are suitable for. Fairfieldnodal, nee fairfield industries, which has a 35year history in providing seismic data acquisition services, including processing, is positioned at the forefront of nodal seismic technology. Seismic design of reinforced concrete special moment frames a guide for practicing engineers, second edition building structures generally comprise a threedimensional framework of structural elements configured to support gravity and lateral loads. Seismic safety policy 5 of 20 cses report as meeting seismic performance rating v, vi, or vll, the responsible official shall provide building data to office of the president for the seismic risk model. They must learn to move from specialist to generalist, analyst to integrator, tactician to strategist, bricklayer to architect. What the new asce 716 seismic design standards mean for.
Changes to the seismic hazard maps are presented, along with explanations as to why they were necessary and how they will. Chapter 11 presents criteria for the design and construction of buildings and other structures subject to earthquake ground motions. The term 4d seismic reflects that calendar time represents the fourth dimension. Seismic loads includes a section with 26 frequently asked questions, as well as three appendixes with supplementary material. May 11, 2012 calculation of equivalent lateral seismic forces based on asce 702 and ktp 289 conference paper pdf available may 2012 with 1,487 reads how we measure reads. Ie importance factor, as specified in asce 705, section 11.
Development of the 2020 nehrp provisions ascesei 716. It has independent cable connection to its own accelerometer sensor. Context ecological impacts of conventional seismic practices the movement of oil and gas exploration and development activity into basins with little to no exploration activity, especially away from the existing infrastructure such as the dempster and alaska. Asce 7 16 seismic provisions overview john hooper, p. To acquire skills in interpretation of 3d seismic data to enhance theoretical knowledge of seismic structural interpretation, stratigraphic interpretation, reservoir identification and evaluation, and horizon and formation attributes. Seismic loads provides clear, authoritative explanations of the seismic design provisions contained in standard asce sei 7 10. T l longperiod transition period, specified according to the asce 705 code, as shown in the figures 2215 through 2220. Senior principaldirector of earthquake engineering magnusson klemencic associates new site amplification factors first update since 1994 ubc much more data.
The development of asce 710 slated for publication in 2010 is just getting under way. The two horizons in the inline seismic section occurred at the levels of 2120ms. Introduction the first requirement for a seismic monitoring network is that it be capable of detecting. This is the original version of the nonstructural seismic design spreadsheet. Advanced earthquake topic 15 7 slide 3 instructional material complementing fema 451, design examples seismic isolation 15 7 3 outline seismic base isolation configuration and qualitative behavior of isolated building objectives of seismic isolation systems effects of base isolation on seismic response implications of soil conditions. The seismic load provisions have undergone many significant changes since the 2005 edition of asce 7. Nfpa 5000 directly adopts the entire asce 7 seismic provisions by reference. Upon examination of the subband used by geoscientists in over 85 countries. Detailed comparison of structural provisions of 2005 asce 7 to 2003 nehrp continued 2003 nehrp 2005 asce 7 section provision section provision comments 5 used, the sdc shall be determined from table 1. Seismic data consists of a series of recorded wiggle traces that describe a set of echoes from interfaces between rock layers in the subsurface that have different rock properties. Comparison of the seismic provisions of the 1997 uniform.
The american society of civil engineers asce acknowledges the. Seismic imaging can provide information about geologic structure and stratigraphy including bed thickness and geometry, rock type, faulting. The bssc has now embarked on another fiveyear cycle for development of what will be the 2020 edition of the provisions. See chapter the weight of the component needs to be less than 25% of the weight of the building, otherwise the structure should be considered a nonbuilding structure. It incorporates many of the provisions found in fema 450, nehrp recommended provisions, 2003 edition.
In a decentralized system, seismic switches are implemented as additional remote unit. To a beginner in learning how to apply seismic provisions as per the asce this can be recommended as a good book to start with. Context ecological impacts of conventional seismic practices the movement of oil and gas exploration and development activity into basins with little to no exploration activity, especially away from the. W effective seismic weight the effective seismic weight, w, of a structure shall include the dead load above the base and other loads above the base as listed below. Changes to the seismic hazard maps are presented, along with explanations as to why they were necessary and how they will affect seismic design. Seismic load analysis per asce 702 equivalent lateral force method notation. It is difficult to see and analyse the difference on static sidebyside displays like figures 2ef but when presented on a workstation screen such comparison quickly. Detecting seismic events the first requirement for a seismic monitoring network is to detect and locate seismic events that could have been caused by an underground nuclear explosion. Generally following the organization of the seismic chapters in asce 710, this handy reference briefly summarizes each change to the seismic provisions that might affect actual practice andor enforcement and then presents the precise wording.
As in past cycles, seismic engineers and industry representatives again will approach this process enthusiastically. Seismic analysis parameters us code asce 710 ibc 2012. Asce 7 05 is the current version of the asce standard. Introduction the first requirement for a seismic monitoring network is that it be capable of detecting seismic events. Instructional material complementing fema 451, design examples seismic isolation15 7 18 example of seismic isolation retrofit u. Nist anticipates producing one on seismic design of reinforced concrete diaphragm analysis and design and another on guidelines for performing nonlinear structural analysis in 2010. Although the 1997 usc seismic zone only considers the seismicity of a location whereas the 1997 nehrp seismic design category takes into account the building occupancy and soil type as well as seismicity, an equivalency between seismic zone and seismic design category was assumed for this comparison study. R response modification coefficient, as specified in asce 705, tables 12. Seismic design maps usgs earthquake hazard program. Nodal seismic technology raises the bar for seismic data. Usgs earthquake hazards program, responsible for monitoring, reporting, and researching earthquakes and earthquake hazards. The new requirements of asce 7 16 for sitespecific ground motions interim solution to an identified shortcoming in the seismic design procedures of asce 7 10 charlie kircher, ph. Pdf calculation of equivalent lateral seismic forces based.
I find it quite useful in understanding on seismic provisions given in asce 7 05. Seismic design shall include both effective from horizontal seismic and vertical seismic force. This is due to a penalty imposed by asce 7 16 for site class d sites in seismically active areas, as well as updates to site amplification factors based on recent. Fema 451b topic 9 notes seismic load analysis 9 7 instructional material complementing fema 451, design examples seismic load analysis 9 7 provide 5% damped firm rock site class b spectral accelerations s s and s 1 or 2% in 50 year probability or 1. Pdf calculation of equivalent lateral seismic forces. Go to the loads section, and then select ibc 2012 from the seismic loads menu. The development of asce 7 10 slated for publication in 2010 is just getting under way. Chapter 4 detecting seismic events the first requirement for a seismic monitoring network is to detect and locate seismic events that could have been caused by an underground nuclear explosion. Chapter 4 detecting seismic events princeton university. Seven seismic shifts in transitioning into business leadership. In addition, two separate seismic force levels were utilized during the assessment representing both moderate and high seismic exposures in order to evaluate the impact of these parameters. Asce 705 is the current version of the asce standard. When used with the expanded seismic commentary included in asce 710 third printing, seismic loads assists structural engineers in.
A tool, maintained by the office of the president, to assess seismic risk in university facilities. Basic theory of seismic waves traveling through the earth and how they interact with earth materials and interfaces. Asce 705 international seismic application technology. The seven seismic shifts to enterprise leadership part 5. If, after assessment of the cses report and the results of the seismic risk model, a. Introduction to the methods of acquisition and processing of seismic reflection data. University of california policy seismic safety policy 3 of 20 seismic risk model. Kinetics guide to understanding nbcc seismic for mep. When used with the expanded seismic commentary included in asce 7 10 third printing, seismic loads assists structural engineers in applying the latest thinking in seismic design of new building structures. It explains well to a certain extent all the areas in the seismic load evaluation and design with examples. Based on the well to seismic ties two horizons were identified in the seismic sections. Each wiggle trace is the record, in time, of when sound from each source.
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