Structural Hot Topics

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This seminar workbook addresses the following hot topics which have generated many questions and quite a bit of discussion among structural engineers. #1: Load Combinations - The three sets of load combination equations of ASCE 7-05 and the 2006 IBC are discussed and their differences, such as in the dead load factor, are addressed. The advantages and disadvantages of using one set versus another are explained. The special seismic load combinations or load combinations with overstrength are also discussed. #2: New Simplified Wind Design Provisions for the 2009 IBC - A simplified wind design procedure, with broader applicability than that of Method 1 - Simplified Procedure of ASCE 7-05/2006 IBC, has been approved for inclusion in the 2009 IBC. The procedure is an alternative to Method 2 - Analytical Procedure of ASCE 7-05/2006 IBC and is in some ways similar to the wind design procedure that was in the 1997 UBC. The procedure is discussed in detail. #3: Significant 2009 IBC Concrete Chapter (ACI 318-08) Changes - A large number of very substantive changes have been made from the 2005 to the 2008 edition of ACI 318. Selected changes of major importance are presented and briefly discussed in this session. ACI 318-08 is referenced by the 2009 IBC. Thus, the changes discussed are also the changes in concrete design provisions from the 2006 to the 2009 edition of the IBC. #4: Redundancy - The redundancy factor of ASCE 7-05 and the 2006 IBC, which is required to be determined in the design of structures assigned to Seismic Design Categories (SDC) D through F, is explained and frequently asked questions are answered. #5: Diaphragm: Rigid or Flexible? - A flow chart is presented and explained so that, given any diaphragm situation, its flexible, semi-rigid, or rigid classification according to the provisions of ASCE 7-05 can be determined conclusively and quickly. #6: Nonstructural Components and Nonbuilding Structures: What does the 2006 IBC require? - The seismic design requirements for nonstructural components and nonbuilding structures are explained. Requirements and exceptions are outlined including a discussion of the seismic force demand equations for nonstructural components, nonbuilding structures similar to buildings and nonbuilding structures not similar to buildings. Guidance on how to determine whether or not an item is a nonstructural component or a nonbuilding structure is provided. No. of pages: 164 Pages
More Information
Pages 164
Code Year - Other -
ISBN 30081208007
Author: Structures and Codes Institute
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