CE 761 Design of Temporary Structures in Construction

Many types of temporary structures, systems and components are necessary for support of loads that are unique to the construction process. These elements must be designed by the construction engineer to meet requirements for safety and for economy. The permanent structure is also subject to loads during construction for which it was not designed and it must be evaluated for strength to support these loads at an early age. Computer tools can be used in analysis of temporary structures and developed to aid the design and evaluation process. Lessons can be learned from examination of past failures. 3 credit hours.

  
   
   
Prerequisite
  

Undergraduate courses in structural analysis, concrete materials, steel design and concrete design and graduate standing.

 
Course Objectives  

Attain an understanding of resources, requirements, and methods for design of temporary structures used in the construction process considering the following topical areas:

  • Construction loads
  • Standards related to temporary structures during construction
  • Analysis of structural systems using SAP2000
  • Fundamentals of wood design for temporary structures
  • Shoring and re-shoring analysis for multi-story building construction
  • Formwork design and construction
  • Formwork systems
  • Cofferdam design and construction
  • Foundation underpinning systems
  • Trenching and excavation safety
  • Earthwork bracing
  • Bracing of masonry walls during construction
  • Construction failures and lessons learned

 
Course Requirements   50% Regular assignments
25% Midterm exam
25% Final exam

 

Textbook  

Both of the following will be class ordered at special student prices after start of semester.

1. Hurd, M. K., Formwork for Concrete, ACI SP-4, 7th Ed, 2005
2. AFPA, NDS for Wood Construction-ASD/LRFD, 2005

 
Course Pack  

Partial course notes and references available in segments as downloads as semester progresses.

 
References  
  1. OSHA, Standards for the Construction Industry, 29 CFR Part 126.
  2. ASCE 37, Design Loads on Structures During Construction, 2002.
  3. ACI 347R-04, Guide to Formwork for Concrete, 2004.
  4. ANSI A10.9, Concrete and Masonry Work - Safety Requirements.
  5. CMWB, Standard Practice for Bracing Masonry Walls Under Construction, July 2001.

 
Computer and Internet Requirements  

NCSU has recommended minimum specifications for computers used for classes. Depending on your computer needs, we recommend your computer meet or exceed the following minimum specifications below.

PCs must have an Intel-compatible 1 GHz processor, 512 MB RAM, 60 GB hard drive with 1 GB free space available, 256 Color Display, CD-ROM drive, 1024x768 (min.) video adapter, sound card, and speakers. The operating system should be Windows XP Pro. Real One Player Basic (available free online) and high speed Internet connection such as cable, DSL, T1 or LAN will be required for EOL courses.

MAC users must have a G4 processor with firewire and USB factory built-in, 512 MB RAM, 60 GB with 1GB free space available, 256 Color Display, CD-ROM drive, 1024x768 (min) video adapter, sound card, and speakers. The operating system must be MacOS 10.4 (minimum) along with the above RealOne and Internet specifications above.

For more detailed information on computer specifications and recommendations, please refer to our website at: http://engineeringonline.ncsu.edu/currentstudents/computeraccess.htm

 
Software Requirements  

Word processing (Word or WordPerfect), spreadsheet (Excel or Quattro). Other software will be supplied or will be downloadable demo versions.

 
Instructor  

Dr. David W. Johnston, PE
Department of Civil, Construction, and Environmental Engineering
North Carolina State University
Raleigh , NC 27695-7908

Tel: 919-515-7412
Fax: 919-515-7908
Email: johnston@eos.ncsu.edu