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Home > Publications > International Concrete Abstracts Portal
Showing 1-5 of 15 Abstracts search results
Document:
SP285-14
Date:
May 1, 2012
Author(s):
Vladimir I. Yagust and David Z. Yankelevsky
Publication:
Symposium Papers
Volume:
285
Abstract:
This paper deals with a moment resisting steel frames building with reinforced concrete monolithic or precast floors and precast reinforced concrete exterior curtain wall panels. It examines the building's stability against the possible development of a progressive failure that follows an initial local failure (ILF), such as a collapse of a single column and the adjacent walls. It is assumed that the building has survived the short term ILF failure event and the analysis is focused on the residual strength and stability of the damaged building under static conditions due to both the dead and live loads acting on its floors. The proposed analysis employs the kinematical method of the limit equilibrium theory of plastic systems, and examines major possible kinematic schemes of plastic collapse of the frame above the locus of ILF at the facade of the building, taking into account the plastic failure of the different structural members. The overall stability of the building under a given failure scheme is examined by comparison of the work done by the internal generalized forces in the plastic hinges on corresponding generalized displacements due to a virtual kinematic downward displacement with the work done by the external forces on corresponding displacements resulting from the same virtual kinematic displacement of the supporting building elements above ILF.
DOI:
10.14359/51683937
SP285
Editors: Gajanan M. Sabnis and Pericles C. Stivaros / Sponsored by: ACI Committee 347 and ACI Committee 350 and ACI Committee 364 and ACI Committee 437
This CD-ROM contains 14 papers sponsored by ACI Committees 347, 350, 364, and 437. The papers represent a broad range of topics including; concrete mix design, design and construction, construction failures, formwork in concrete design, and more. Note: The individual papers are also available. Please click on the following link to view the papers available, or call 248.848.3800 to order. SP-285
10.14359/51683853
SP285-11
N.J. Carino
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.
10.14359/51683934
SP285-12
Eric Peterson
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.
10.14359/51683935
SP285-13
Daniel J. McCarthy and Lars F. Balck
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.
10.14359/51683936
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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.
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