Progressive Collapse Resistance of Axially-Restrained Frame Beams

Document Type

Article

Publication Date

2009

Publication Title

ACI Structural Journal

Volume

106

Issue

5

First page number:

600

Last page number:

607

Abstract

Twelve specimens representing reinforced concrete frame beams were tested to investigate their gravity load-carrying capacity against progressive collapse. In these tests, the beams within the frame subassemblies were restrained longitudinally against axial deformation. The tests indicated that the compressive arch action due to longitudinal restraint can significantly enhance the flexural strength of a beam subjected to vertical loads. The compressive arch action was observed to be a function of flexural reinforcement ratio and ratio of beam span to depth. The test results validated an analytical model that has considered the axial restraining effects on beam loading capacity. The application of compressive arch effect to the prevention of progressive collapse is discussed.

Keywords

Beam(s); Catenary; Catenary action; Compressive arch action; Concrete beams; Progressive collapse; Reinforced concrete; Reinforced concrete construction

Disciplines

Civil and Environmental Engineering | Civil Engineering | Engineering | Materials Science and Engineering | Structural Engineering

Language

English

Permissions

Use Find in Your Library, contact the author, or interlibrary loan to garner a copy of the item. Publisher policy does not allow archiving the final published version. If a post-print (author's peer-reviewed manuscript) is allowed and available, or publisher policy changes, the item will be deposited.

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