ABOUT THE INTERNATIONAL CONCRETE ABSTRACTS PORTAL

  • The International Concrete Abstracts Portal is an ACI led collaboration with leading technical organizations from within the international concrete industry and offers the most comprehensive collection of published concrete abstracts.

International Concrete Abstracts Portal

Showing 1-5 of 8 Abstracts search results

Document: 

SP111-06

Date: 

December 1, 1988

Author(s):

L. I. Nedelcu

Publication:

Symposium Papers

Volume:

111

Abstract:

Presents an optimum design for a given prestressed concrete member, chosen from an existing shape library and a given external load system. It is emphasized that, as part of the given data, the tendon diagram is determinant in designing a prestressed concrete member. The analysis is based on the elastic behavior of the member, and a realistic investigation of the capacity of the member is performed. The whole process implies an appreciable volume of computations and is suitable for digital computers. A design aid for the initial and final stages of the prestressed concrete member is also presented.

DOI:

10.14359/3667


Document: 

SP111-03

Date: 

December 1, 1988

Author(s):

S. Malasri and S. Maldonado

Publication:

Symposium Papers

Volume:

111

Abstract:

Concrete Mix Designer is a prototype expert system that provides the proportion of the trial mix of concrete in accordance with the ACI method. It was developed using the Personal Consultant Plus expert system development package. As most expert systems, this system can justify its conclusions, can be incrementally expanded, and has an easy-to-understand knowledge base. It also has a tutorial for fundamental questions of the proportioning of concrete. The system is very useful for civil engineering students as well as practicing engineers.

DOI:

10.14359/3614


Document: 

SP111-01

Date: 

December 1, 1988

Author(s):

F. C. Filippou

Publication:

Symposium Papers

Volume:

111

Abstract:

Potential advantages of using electronic spreadsheets in advanced reinforced and prestressed concrete design are presented. The power of this tool is demonstrated through a series of examples, including the moment-curvature relation of reinforced and prestressed concrete beams, the axial load-uniaxial and biaxial bending moment interaction diagram of reinforced concrete sections, and the tendon layout of simply supported beams prestressed with draped or straight tendons.

DOI:

10.14359/3592


Document: 

SP111

Date: 

December 1, 1988

Author(s):

Editor: Fernando E. Fagundo

Publication:

Symposium Papers

Volume:

111

Abstract:

SP111 The area of computer applications in concrete technology is growing rapidly. Where it was once the exclusive domain of researchers and scientists, it is now an area where fabricators, detailers, designers, students and educators are making significant contributions. The different applications presented in this important ACI publication will be of interest of individuals dedicated to the correct use of concrete as a construction material. "State-of-the-Art Computer Applications in Concrete Technology" offers the latest information on topics such as microcomputer-aided design of reinforced and prestressed concrete elements; computer analysis of R/C columns in biaxial bending; spreadsheet template of concrete box design; concrete mix design; and personal computer-aided design of post-tensioned slabs on expanding and compressible soils. This ACI publication is designed to keep you abreast of the latest happenings in concrete technology and is intended to enhance the technological tools available for the correct, safe, and economic use of concrete.

DOI:

10.14359/14144


Document: 

SP111-07

Date: 

December 1, 1988

Author(s):

R. Mician

Publication:

Symposium Papers

Volume:

111

Abstract:

Reinforced and later post-tensioned slabs as foundations for residential and light commercial building were introduced in the 1950s. Low-cost and easy to build, they were constructed at an average rate of 1.5 million per year. In 1976, PTI (Post-Tensioning Institute) initiated research at Texas A & M University to improve the design method. The results were published in 1980. Responding to the complexity of required calculation, part of the climate-soil-structure modeling was calculated by computer and tabulated for quick use. Even so, the method requires computer-aided design, illustrated by the analysis of the failed slab. The printout indicates all weak points of the slab and the probable cause of failure. A structurally sound redesigned slab is calculated next. The printout shows all parameters in limits prescribed by the code. Minimal increase in initial cost can save thousands of dollars in repairs.

DOI:

10.14359/3637


12

Results Per Page