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Selecting and Scaling Earthquake Ground Motions for Performing Response-History Analyses Published: November 15, 2011 Author(s) Andrew Whittaker, Gail Atkinson, Jack Baker, Jonathan Bray, Damian Grant, Ronald Hamburger, Curt Haselton, Paul Somerville Abstract The primary objective of this task was to develop guidance for selecting, generating, and scaling earthquake ground motions for effective use in performing response history analyses for use in performance-based seismic engineering. The need for such guidance was identified in the ATC-57 report, The Missing Piece: Improving Seismic Design and Construction Practices (ATC, 2003), which defines a roadmap for the NIST problem-focused research and development program in earthquake engineering. Following a thorough study of the state of the practice with regard to selecting and scaling ground motions for nonlinear response-history analysis of buildings, the project team developed a list of key challenges facing design professionals tasked with selecting and scaling earthquake ground motions. Based on the findings identified, and considering the potential for impacting design practice in the near-term, the following topics were chosen for study: (1) selection of ground motions based on the Conditional Spectrum; (2) response-spectrum matching; and (3) near-fault ground motions and fault-rupture directivity. To encourage consensus and consistency in the state of the practice going forward, recommendations related to selecting and scaling ground motions for design and performance assessment of low- and medium-rise buildings, and a discussion on best practices for applying the current rules in building codes and standards, are provided. Citation: Grant/Contract Reports (NISTGCR) - 11-917-15 Report Number: 11-917-15 NIST Pub Series: Grant/Contract Reports (NISTGCR) Pub Type: NIST Pubs گزارش بسیار ارزشمند و کامل NIST در زمینه انتخاب رکورد و مقیاس سازی رکوردها برای انجام تحلیلهای غیرخطی و طراحی لرزه ای بر اساس عملکرد Download Paper Local Download Keywords NEHRP Consultants Joint Venture, ATC, Ground Motions, Spectrum Matching, Conditional Spectrum منبع record selection_@sharifstructure.pdf

NEHRP Seismic Design Technical Brief No. 7 - Seismic Design of Reinforced Concrete Mat Foundations: A Guide for Practicing Engineers Published: August 15, 2012 Author(s) Ron Klemencic, Ian McFarlane, Neil Hawkins, Sissy Nikolaou Citation: Grant/Contract Reports (NISTGCR) - 12-917-22 Report Number: 12-917-22 NIST Pub Series: Grant/Contract Reports (NISTGCR) Pub Type: NIST Pubs گزارش بسیار ارزشمند و کامل NIST در زمینه طراحی لرزه ای پی گسترده ساختمانها Download Paper Local Download Keywords NEHRP Consultants Joint Venture, ATC, Techbrief منبع seismic foundation_@sharifstructure.pdf

دفترچه محاسبات دو سازه 6 و 12 طبقه در آمریکا طراحی شده در SAP2000 بر اساس FEMA p752 & Nehrp 2009 Analysis of two 6 snd 12-Story Steel Building In Stockton, California with SAP 2000 FEMA p752 & Nehrp 2009- 500 pages ساختمان از سیستم قاب خمشی فولادی ویژه ( با قابهای پیرامونی مقاوم در برابر زلزله) با کاربری اداری و بر روی خاک نوع C میباشد. سازه 12 طبقه نامنظم و دارای یک طبقه زیرزمین است. روشهای تحلیل استاتیکی ، تحلیل طیفی مودال و تحلیل تاریخچه زمانی مورد استفاده قرار گرفته و نتایج با هم مقایسه شده است. از دیگر مواردی که در این دفترچه اشاره شده است میتوان به اثرات پی-دلتا ، اثرات بارهای زلزله متعامد ( اثر 100-30) ، ضریب نامعینی ، ترکیب بارها، کنترل دریفت ، مقیاس سازی شتابنگاشت ها و .... میباشند. به نقل از کانال تلگرام جداسازی لرزه ای و میراگرهای انرژی Analysis_of_a_12_Story_Steel_Building.part5.rar Analysis_of_a_12_Story_Steel_Building.part4.rar Analysis_of_a_12_Story_Steel_Building.part2.rar Analysis_of_a_12_Story_Steel_Building.part3.rar Analysis_of_a_12_Story_Steel_Building.part1.rar