Proposed Earthquake Design Requirements of the National Building Code of Canada, 2005 edition / Exigences de calcul des séismes proposées au Code national du bâtiment, édition de 2005INTRODUCTION

2003 ◽  
Vol 30 (2) ◽  
pp. v-xvii
Keyword(s):  
Building Code ◽  
Earthquake Design ◽  
Design Requirements

Background information for some of the proposed earthquake design provisions for the 2005 edition of the National Building Code of Canada

2003 ◽  
Vol 30 (2) ◽  
pp. 279-286 ◽  
Author(s):  
Ronald H DeVall
Keyword(s):  
Structural Design ◽  
Building Code ◽  
Background Information ◽  
Load Path ◽  
Special Design ◽  
Load Paths ◽  
Irregular Structures ◽  
Earthquake Design ◽  
Importance Factor ◽  
Design Requirements

There are many changes proposed for the Earthquake Design Provisions of the 2005 edition of the National Building Code of Canada (NBCC). Among them are requirements for complete load paths, separation of stiff nonstructural elements, and the introduction of definitions of irregular structures and special design requirements associated with these irregularities. A new requirement for direction of loading is introduced, along with requirements for elements common to more than one lateral load resisting system. The effects of displacements are emphasized throughout the document, and revised provisions for drift limits are proposed. Revisions to the importance factor that integrate it into the proposed revised format for Part 4, Structural design, of the NBCC are given. Background information is presented.Key words: load path importance factor, irregular structures, direction of loading, special requirements, drift limits.

Review of NBCC earthquake-resistant design requirements for cladding connectors

1994 ◽  
Vol 21 (3) ◽  
pp. 455-460 ◽  
Author(s):  
Michel Bruneau ◽  
Julie Mark Cohen
Keyword(s):  
Building Code ◽  
Nonstructural Components ◽  
Earthquake Resistant Design ◽  
Special Cases ◽  
Seismic Resistant ◽  
Limits Of Knowledge ◽  
Earthquake Design ◽  
Current Design ◽  
Design Requirements ◽  
Ductile Behavior

As a consequence of recent increases in the severity of seismic design force requirements in Canada, practicing engineers who design cladding connectors should be concerned with their seismic resistance. The current design requirements of the 1990 edition of the National Building Code of Canada for nonstructural components call for unduly high prescribed design forces for the cladding connectors without providing justification, commentary, or substantiation for this constraint, nor guidance on how this is to be achieved. This paper offers some rationalization of these stringent design requirements based on a review of their evolution, outlines some of the shortcomings of the current design approach, recommends possible abatements of the requirements in special cases, and points toward future directions and alternate philosophies for the design of cladding connectors. In particular, the following are recommended: (i) the scope of Part 4 of the National Building Code of Canada should be modified to specifically indicate that cladding connectors are to be designed by a professional engineer, (ii) the latest cladding-connector seismic-resistant design philosophy of the Structural Engineers Association of California should be incorporated into the National Building Code of Canada; (iii) a distinction should be made between out-of-plane and in-plane cladding-connector seismic-resistant design requirements; (iv) a commentary should be written on cladding-related seismic-resistant design issues to clearly state current philosophy, uncertainties, and limits of knowledge be included in the building code, and (v) standardized seismic-resistant cladding connectors be developed with capacities to meet prescribed levels of ductile behavior and interstory drifts and widely distributed to the profession. Key words: cladding, connectors, earthquake, design, code, seismic.

Model Code Design Force Provisions for Elements of Structures and Nonstructural Components

2000 ◽  
Vol 16 (1) ◽  
pp. 115-125 ◽  
Author(s):  
Richard M. Drake ◽  
Leo J. Bragagnolo
Keyword(s):  
Building Code ◽  
Code Design ◽  
Structural System ◽  
Nonstructural Components ◽  
Model Code ◽  
Earthquake Design ◽  
Significant Change ◽  
New Buildings

With the publication of the 1997 Uniform Building Code ( UBC) and the 1997 NEHRP Recommended Provisions for the Seismic Regulations for New Buildings and Other Structures, there has been a significant change in the earthquake design force provisions for buildings, structures, elements of structures and nonstructural components. Engineers and architects need to become informed regarding a variety of earthquake design force provisions, primarily those published in the UBC and those developed as part of the NEHRP Provisions. Both sources provide design force provisions for the building structural system and separate design force provisions for elements of structures and nonstructural components. This paper describes the development, evolution, and application of the earthquake design force provisions for elements of structures and nonstructural components.

Evolution of Design Code Requirements for Exterior Elements and Connections

2005 ◽  
Vol 21 (1) ◽  
pp. 213-224 ◽  
Author(s):  
Brian J. Sielaff ◽  
Richard J. Nielsen ◽  
Edwin R. Schmeckpeper
Keyword(s):  
Precast Concrete ◽  
Lateral Force ◽  
Frame Structure ◽  
Building Code ◽  
Seismic Zone ◽  
Seismic Rehabilitation ◽  
Story Drift ◽  
Moment Resisting ◽  
Design Requirements ◽  
Steel Frame Structure

Seismic design requirements for precast concrete cladding panel connections have evolved significantly over the past fifty years. This paper summarizes the pertinent requirements from the Uniform Building Code from 1967 to 1997, and the International Building Code 2000. A hypothetical design illustrates how emphasis in the code has evolved for both lateral force requirements and story drift displacement requirements arriving at a balance of moderate lateral force and displacement requirements. The numerical results are based on a hypothetical case of panel connections for a ten-story moment-resisting steel frame structure built in seismic Zone 4. This historical summary is of value to designers who deal with the seismic rehabilitation of precast panel connections.

Major Changes in Concrete-Related Provisions-1997 UBC and Beyond

2000 ◽  
Vol 16 (1) ◽  
pp. 141-162
Author(s):  
S. K. Ghosh
Keyword(s):  
Seismic Design ◽  
Building Code ◽  
Earthquake Hazards ◽  
Structural Concrete ◽  
Seismic Codes ◽  
Evolutionary Changes ◽  
Reduction Program ◽  
Design Requirements ◽  
New Buildings ◽  
Made In

U.S. seismic codes are undergoing profound changes as of this writing. Changes from the 1994 to the 1997 edition of the Uniform Building Code (UBC) (ICBO 1994, 1997) are many and far-reaching in their impact. The 1997 edition of the National Earthquake Hazards Reduction Program (NEHRP) Recommended Provisions for Seismic Regulations for New Buildings (BSSC 1998) contains further evolutionary changes in seismic design requirements beyond those of the 1997 UBC. The latter document will form the basis of the seismic design provisions of the first edition of the International Building Code (IBC), to be published in the spring of 2000. This paper first discusses the major changes that have been made in the concrete-related provisions from the 1994 to the 1997 edition of the UBC. The paper gives background to these changes, provides essential details on them, and indicates how they have been or how they are going to be incorporated (at times with significant modifications) into the 1997 NEHRP Provisions and the 2000 IBC. The newly published ACI 318-99, Building Code Requirements for Structural Concrete (ACI 1999), is going to be adopted by reference into the 2000 IBC. This entails further changes in concrete-related provisions beyond the 1997 UBC. Some of the more important of these changes are discussed here. A small number of amendments and additions to the ACI 318-99 provisions are going to be included in the 2000 IBC. The more important of these are also outlined in this paper.

scholarly journals STUDI PERBANDINGAN USER REQUIREMENTS DOCUMENT (URD) VOLUME 2 VERSI EROPA DAN AMERIKA UNTUK PENYUSUNAN URD PEMBANGKIT LlSTRIK TENAGA NUKLIR (PLTN) DIINDONESIA

2014 ◽  
Vol 2 (2) ◽  
pp. 113
Author(s):  
Sunardi .
Keyword(s):  
Quality Assurance ◽  
Design Process ◽  
Mechanical Equipment ◽  
Standard Material ◽  
Safety Requirements ◽  
Design Basis ◽  
Earthquake Design ◽  
Machine Interface ◽  
Design Requirements ◽  
Requirements Document

Telahdilakukan studi perbandingan URD versi Eropa dan Amerika dalam rangkapenyusunan URD untuk PLTN yang direncanakan dibangun di Indonesia. URD versiEropa terdiri dari empat (4) volume sedangkan URD Amerika yang disusun olehEPRI tersusun dalam dua (2) volume. Dalam studi ini dilakukan khusus volume 2yang isinya merupakan Generic Nuclear Island Requirement. URD volume 2 versiEropa terdiri dari : Introduction to the EUR, Safety Requirements, PerformanceRequirements, Grid Requirements, Design Basis, Code & Standard, Material-RelatedRequirements, Functional of the Components, Functional of the System & Process,Containment system, Instrumentation & Control and Man-machine Interface (IC &MMI), Layout rule, Design Process & Documentation, Constructability &Commissioning, Operation, Maintenance and Procedures, Quality Assurance,Decommissioning, PSA Methodology, Performance Assessment Methodology, CostAssessment Information. Sedangkan URD versi Amerika terdiri dari : Introduction,Safety Design Requirements, Performance Design, Requirements, Structural designRequirements, Materials, Reliability Availability, Construction, and Constructability,Operability and Maintainability, Quality Assurance, Licensing, Design, Process,Mechanical Equipment Design Requirements. Dari hasil studi URD vol 2 versi Eropadan Amerika dapat disimpulkan bahwa kedua-duanya tidak jauh berbeda hanyadalam hal pembagian isi dari masing-masing cahapter agak berbeda dan URD versiEropa lebih terperinci. Dalam rangka penyusunan URD PLTN versi Indonesiapenulis lebih memilih chapter-chapter versi Eropa yang terdiri dari 19 chapter danIntruduction. Sedangkan mengenai isi yang sifatnya alami perlu disesuaikan dengankondisi di Indonesia seperti Grid Requirements, Design Basis suhu udara, air laut,tekanan, dan juga standard earthquake design acceleration versi URD Euro level0.25 g dan untuk di Indonesia sekitar 0,3 g. Untuk code dan standard Indonesia tidakhanya menggunakan standard Eropa dan Amerika saja tapi menggunakan standardyang secara international diakui.Kata kunci : URD EURO, URD USA (EPRI)

On calculating equivalent static seismic forces in the 2005 National Building Code of Canada

2011 ◽  
Vol 38 (4) ◽  
pp. 476-481
Author(s):  
Patrick Paultre ◽  
Éric Lapointe ◽  
Sébastien Mousseau ◽  
Yannick Boivin
Keyword(s):  
Seismic Design ◽  
Lateral Force ◽  
Building Code ◽  
Force Distribution ◽  
Static Force ◽  
Building Height ◽  
Design Spectra ◽  
Earthquake Design ◽  
Seismic Forces

Several major changes were introduced in the seismic design provisions of the 2005 edition of the National Building Code of Canada (NBCC). The lateral earthquake design force at the base and the lateral force distribution along the building height depend on the design spectra and on modification factors that, in most cases, require a large number of interpolations and calculations. This note presents a spreadsheet that facilitates determination of the 2005 NBCC seismic design forces from the equivalent static force procedure.

Collaborative Airport Traffic System (CATS) to Evaluate Design Requirements for an Airport Surface Departure Management System

2011 ◽  
Author(s):  
Alicia B. Fernandes ◽  
Philip J. Smith ◽  
Amy Spencer ◽  
Eric Wiley ◽  
Dustin Johnson
Keyword(s):  
Management System ◽  
Traffic System ◽  
Design Requirements
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