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International Concrete Abstracts Portal

Showing 1-5 of 15 Abstracts search results

Document: 

SP285-12

Date: 

May 1, 2012

Author(s):

Eric Peterson

Publication:

Symposium Papers

Volume:

285

Abstract:

This paper is based upon a presentation given in honor of Dov Kaminetzky’s long-term interest in the design of formwork, as it forms the major link in the successful execution of cast-in-place concrete structures. The intent is to illustrate how the design documents are viewed from a formwork builder’s perspective. Through the use of the example of one project, The Cathedral of Christ the Light, Oakland California, the use of the design documents are presented and discussed in terms of the information provided by the designer and how the formwork builder processes and utilizes this information to successfully produce the finished structure. The presentation follows a process of utilizing design provided information to complete the geometric information needed to construct the formwork, and the verification methods utilized throughout planning and construction. It highlights a particular and careful intermediate process, which takes place between the design and a completed concrete structure.

DOI:

10.14359/51683935


Document: 

SP285-11

Date: 

May 1, 2012

Author(s):

N.J. Carino

Publication:

Symposium Papers

Volume:

285

Abstract:

This paper is based on a presentation in honor of Dov Kaminetzky’s commitment to the importance of educating those involved in construction about the causes of construction failures. A review is presented of the triad of human factors (ignorance, carelessness, and greed) that are often the underlying causes of the technical factors leading to failures. Four construction failures investigated by the U.S. National Bureau of Standards are reviewed. The systematic approach used in these investigations to arrive at the likely causes of the failures is discussed. The series of construction failures that occurred in the 1970s and 1980s raised questions about the whole process of engineering and construction of the built environment. Conferences were held and causes of failures were debated widely. As a result, changes were made to codes and standards and steps were taken to define better the responsibilities of each member of the project team. The paper concludes with recommendations for reducing the likelihood of construction failures, and it is suggested that we may have indeed learned important lessons.

DOI:

10.14359/51683934


Document: 

SP285-10

Date: 

May 1, 2012

Author(s):

Luke M. Snell

Publication:

Symposium Papers

Volume:

285

Abstract:

This paper is based on a presentation in honor of Dov Kaminetzky’s long-term interest in how to use reinforcement location techniques in evaluating concrete structures. All methods of locating reinforcement are spot specific and can be used to determine the location of a particular reinforcement. In most cases, the engineer or contractor needs to confidently determine the location of the entire reinforcement system used in a member. This requires a detailed sampling plan to be developed and to use appropriate statistical methods. This paper describes four different reasons why reinforcement may need to be located within a structure and present a statistical method that is appropriate for each of these methods.

DOI:

10.14359/51683933


Document: 

SP285-1

Date: 

May 1, 2012

Author(s):

Jose M. Izquierdo-Encarnacion

Publication:

Symposium Papers

Volume:

285

Abstract:

In honor of Dov Kaminetzky, two case stories are discussed; one to reflect his passion for the correct usage and design for concrete and the other his other great passion, the forensic and technical evaluation of existing structures.

DOI:

10.14359/51683924


Document: 

SP285-13

Date: 

May 1, 2012

Author(s):

Daniel J. McCarthy and Lars F. Balck

Publication:

Symposium Papers

Volume:

285

Abstract:

The authors provide a history of the seventy year old wire-wrapped circular prestressed concrete tank industry from three perspectives: 1) evolution of key design and detailing practices; 2) durability and performance; and 3) evolution of professional industry standards.

DOI:

10.14359/51683936


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