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Dissertation
Investigation of progressive collapse in precast concrete large panel buildings
Doctor of Philosophy (Ph.D.), Drexel University
Jun 1982
DOI:
https://doi.org/10.17918/00008987
Abstract
The effects of joint details and joint behavior on the mechanism of progressive collapse in large panel precast concrete buildings was studied using small scale models and the finite element method. The adaptation of techniques to model the details of large panel buildings on a small scale is presented. Tests on 3/32 scale three story wall assemblies and a 3/32 scale-six story-three bay model, involved the removal of bearing walls to simulate the type of local damage which can cause progressive collapse in large panel structures. The results of these tests demonstrated the validity of applying the small scale techniques to the study of large panel buildings. The results identified and quantified the key aspects of the behavior in a damaged state. A finite element computer code was developed to include the types of finite elements which would aid in the modeling of the unique characteristics of joint behavior found in large panel buildings. Changes in the overall behavior of the joints through the loading history of a wall assembly above a damaged wall were incorporated in a nonlinear incremental analysis capability included in the computer code. The results of the experiments were compared to the finite element analysis of three different wall assembly models. The three finite element models were chosen as representative of the major behavioral aspects observed in the experimental models. From a comparison of the experimental and analytical results, the bond behavior of the joint reinforcement, the horizontal shear slip behavior of the horizontal joint, and the adequacy of the vertical support provided for a wall were found to be the critical aspects of the behavior. The proper design of details to control these aspects of behavior, through the use of design practices similar to those recommended by the Portland Cement Association is shown to contribute to the ability of the damaged struture to sustain simulated abnormal loading. The use of both the small scale modeling approach and the finite element method were successful in providing a more complete understanding of the nature and the internal mechanism of progressive collapse in large panel buildings.
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Details
- Title
- Investigation of progressive collapse in precast concrete large panel buildings
- Creators
- John C. Muskivitch
- Awarding Institution
- Drexel University
- Degree Awarded
- Doctor of Philosophy (Ph.D.)
- Publisher
- Drexel University; Philadelphia, Pennsylvania
- Number of pages
- xiii, 363 pages
- Resource Type
- Dissertation
- Language
- English
- Academic Unit
- College of Engineering (1970-2026); Drexel University
- Other Identifier
- 991021888787104721