Widely available spreadsheet software is typically equipped with sophisticated features, such as programmability and handling of complexvalued data even fourier analysis, rendering these productivity tools fully tenable for seismic site response. For periods less than t 0, the design spectral response acceleration, sa, shall be taken as. New ground motion requirements of asce 716 bssc webinar, july 28, 2017 charlie kircher design response spectrum figure 11. Ground motions for design usgs earthquake hazard program. A responsespectrum analysis calculates the maximum response of a structure to transient loads such as displacement,velocity or acceleration, that are forced into vibration by a base vibration or shock. Bridge approach embankments and fills through which cutandcover tunnels are constructed should be designed to remain stable during the design seismic event because. This spectrum were done taking as a start point normalized version of the response spectra obtained from different accelerograms recorded for the following earthquakes. Sitespecific mce r response spectra for design of structures in l. Construction of design response spectrum the chilean way. Fresponse is an easy to use, vendor neutral, patented software utility that enables an investigator to conduct live forensics, data recovery, and ediscovery over an ip network using their tools of choice. A series of mixed vertical oscillators a plot of the peak acceleration for the mixed vertical oscillators a response spectrum is a plot of the peak or steadystate response displacement, velocity or acceleration of a series of oscillators of varying natural frequency, that are forced into motion by the same base vibration or shock.
Released in june 1980, this product was the first integrated circuit editor and logic simulation system. Sitespecific horizontal and vertical mcer response spectra for zones. Enter a new world of software engineering and digital signal analysis and save valuable time. Final report 2019 update to the sitespecific seismic hazard.
The softwares interface was designed with the collector in mind, making sure it is very easy to use. Engineers use response spectrum modal superposition analysis to determine the structural response to sudden forces or shocks such as an earthquake. To help engineers design sound structures, response spectrum modal superposition analysis is used with information gathered. The software is provided on the condition that neither the usgs nor the u.
Development of risktargeted earthquake ground motions for. Mcer spectral response accelerations of chapter 22. Calculates the acceleration, velocity and displacement time series for. Determine the response spectrum seismology engineering. Nonlin and eqtools software for earthquake engineering. Response spectrum method using staadpro as per the is1893 2002part1.
Based on ansys software, the seismic analysis by the response spectrum method and time history method is performed, and the simulation results are compared, it can be concluded that the calculation results of the earthquake response peak values and the main response frequencies are. Initially, the company concentrated on providing software for apple ii systems. Biot 1932, the response spectrum method is a central concept in earthquake engineering. An example of smooth spectra is shown in figure 4 based on a building code design response spectrum for a site of high seismicity. Comparative study of static and dynamic seismic analysis. Performing ollanization name and address earthquake engineering research center university of california, richmond field station 47th and hoffman blvd. Site coefficients and risktargeted maximum considered. Responsespectrum analysis faq technical knowledge base. Originally, when we were studying the dynamics of a simple single degree of freedom structure, we noticed that given one type of earthquake, we dont have to keep solving the equat. Found and removed clsid cafeefac00007abcdeffedcbb dll, required to tenor files from solidworks format launch the program then start a quick scan for the system to detect the panasonic kvs6055w kvs6050w kvs2065w lisis 2. Response spectra blume and associates engineers, 1973 on the basis of a number of significant records accelerograms of major earthquakes that occurred during 19341966 provided a standardized design spectrum shape to be used in the seismic design of. Spectrum software was founded in february of 1980 to provide software for personal computers. The tool was originally developed to provide acceleration ordinates of the asce 716 risktargeted maximum considered earthquake mcer response spectrum, the metric used for the design of new buildings, at 21 natural periods in the 0 to 10sec band.
Mac audio spectrum analyzer mac ham radio software. Spectrum software was a software company based in california, whose main focus is electrical simulation and analysis tools, most notably the circuit simulator microcap. A comparison is done between the static and dynamic analysis, the results such as bending moment, nodal displacements, mode shapes are observed, compared. Instructional material complementing fema p751, design examples. Response spectrum spreadsheet civil engineering community. Developing nextgeneration seismic design value maps nehrp. The tables for ss and s1 were revised between asce 705 and 710.
The resulting plot can then be used to pick off the response of any linear system, given its natural frequency of oscillation. If you want the program to make a spectrum for you, activate the generate response spectrum checkbox and specify values in the oscillating frequency hz and damping ratio 0. Assalamualaikum semua kali ini kita akan membahas bagai mana cara menghitung data beban gempa respon spektrum. The tool provides acceleration ordinates of the mcer response spectrum at 21 natural periods in the 0 to 10sec band. Asce 710, chapter 21 procedures for determining sitespecific, risktargeted, maximum considered earthquake mce r response spectra c. Hi, i understand that the construction of the response spectrum is based on section 11.
When the responsespectrum curve is defined, acceleration is typically entered as a fraction of gravitational acceleration 9. Johnson department of earth and environmental science, new mexico tech 1. Investigation on risktargeted seismic design criteria for a high. A webbased lookup tool was also developed so users can obtain the mcer response spectrum for a specified latitude and longitude and for a specified site class or 30m average shearwave velocity, vs30.
If you are a professional user of microcap 8 or later, you can update your version of microcap by going to the help menu in the program and selecting check for updates. This version can be used by only those clients who have purchased software after 01042018 or customers who are under maintenance contract with microbrain or its authorised dealers upto 31032019. Scale factor should be specified such that its product with responsespectrum values. So, you must perform the modal analysis and response spectrum analysis on the same operating system. Mcer response spectrum periods array of spectral periods, in seconds. Seismic design maps application from the usgs website. You may add up to 5 collectors editons onto one program making it easy for you to organize all of your collections. The parameters sds and sd1 are used to calculate the design response spectrum in section 11. Development of risk targeted earthquake ground motions for use in asce 7, n. This page is devoted to frequently asked questions faq related to responsespectrum analysis.
Nyc building code 2014 16 structural design 16 earthquake loads 16. Selecting and scaling earthquake ground motions for. Note response spectrum modal superpositon uses the results from a modal analysis and operating systems create files with different formats. The peak ground acceleration pga at surface level was calculated for the entire south india for four different site classes. Introduction the basis of engineering seismology is the need to quantify how a given structure will respond to complex ground motions. Chapter 6 seismic design washington state department of.
The parameters s s and s 1 shall be determined from the 0. As the mcer is available, then design spectral values are adopted. The structures response is determined by its mass and stiffness distributions. Asce 710, chapter 21 procedures for determining site. Chapter 6 seismic design page 62 geotechnical design manual m 4603. It is helpful to keep in mind that a response spectrum is simply a graph of the maximum value usually displacement or. Spectrum construction software is a product that is built on more than 30 users of experience and expertise in the construction industry. One of the earliest products was logic designer and simulator. Response spectrum analysis software caterpillarssa v. A plot of peak value of a response quantity as a function. This cloudbased construction software is fused with innovation and investment in the latest technologies, and allows teams to stay focused on their most important projects regardless of where the employees are located. During an earthquake, violent shaking is transmitted into a structure at the points where it is attached to the ground. This web service is still under development, as are the 2020 nehrp provisions. It provides a convenient mean to summarize the peak response of all possible sdf systems to a particular component of ground motion.
The accelerograph records three orthogonal components of ground acceleration. Elastic and inelastic response spectrum analysis fourier amplitude spectrum analysis modal analysis of simple proportionally damped systems modal analysis of simple nonproportionally damped systems. Introduction the most direct description of an earthquake motion in time domain is provided by accelerograms that are recorded by instruments called strong motion accelerographs. Government shall be held liable for any damages resulting from the authorized or unauthorized use of the software. Design example 1 design spectral response acceleration.
Simulationinformed sitespecific design spectra for. Technically, the endian determines the file format. A response spectrum is a plot of the peak or steadystate response displacement, velocity or acceleration of a series of oscillators of varying natural frequency, that are forced into motion by the same base vibration or shock. On top of all of this, you also get 4 useful bonus items with the software. Estimation of peak ground acceleration and spectral. The easiest and most accurate way to obtain the spectral values is to use the u. Development of risk targeted earthquake ground motions. The acceleration response spectrum will be different at each site and for each. Amateur radio satellite tracking and logging software for macintosh. Uniform hazard response spectrum uhrs at rock level for 5% damping and 10% and 2% probability of exceedance in 50years were also developed for all the grid points. Designed for busy industrial and academic laboratories that require both efficient operation and wideranging capabilities, this comprehensive package sets the standard in ftir software for simplicity and. Establishment of siteadjusted design spectral acceleration values sds and sd1, taken as. Where a design response spectrum is required by this standard and sitespecific ground motion procedures are not used, the design response spectrum curve shall be developed as indicated in fig.
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