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International Concrete Abstracts Portal

Showing 1-5 of 15 Abstracts search results

Document: 

SP127

Date: 

October 1, 1991

Author(s):

Editor: S.K. Ghosh

Publication:

Symposium Papers

Volume:

127

Abstract:

SP127 This new special publication covers areas of: - Description of earthquake ground motion - Performance of systems and components in past earthquakes - Experimentally observed inelastic behavior of systems and components - Modeling hysteretic response of concrete members - Inelastic analysis - Deformability of structural components - Seismic design - Seismic detailing This publication helps provide economical new buildings with an enhanced seismic safety.

DOI:

10.14359/14159


Document: 

SP127-14

Date: 

October 1, 1991

Author(s):

James Robert Harris and Gene R. Stevens

Publication:

Symposium Papers

Volume:

127

Abstract:

Current building standards contain complex sets of rules for detailing reinforced concrete structures to resist earthquakes. The rules are intended to deliver reliable post-elastic energy dissipation. This is necessary because structures are designed to yield at levels of motion that are only a fraction of the real motions in a strong earthquake. The detailing rules are intended to prevent brittle modes of failure, such as shear and unconfined compression of concrete, while encouraging widespread flexural yielding. The rules also take into account two other distinctive characteristics of earthquake loading reversal of direction and repetitive cycles. This paper attempts to set forth the rationale for these detailing rules that will allow the designer to see the overall design philosophy and to relate a particular design to the intended performance.

DOI:

10.14359/3029


Document: 

SP127-13

Date: 

October 1, 1991

Author(s):

Mark Fintel and S. K. Ghosh

Publication:

Symposium Papers

Volume:

127

Abstract:

An alternative to the empirical code approach for earthquake-resistant design of building structures is proposed. The suggested procedure uses carefully selected earthquake accelerograms as loading and dynamic inelastic response history analysis to determine member forces and deformations. A number of analyses make it possible to design into the structural elements a desirable balance between flexural strength, shear capacity, and ductility. The amount of allowable ductility in a yielding member depends on selected serviceability criteria and on the deformational capacity of the member. The design approach makes it possible to predetermine the sequence in which inelasticity spreads to various designated structural members. A structure needs to be provided with special ductility details only in the predetermined hinging regions.

DOI:

10.14359/3028


Document: 

SP127-12

Date: 

October 1, 1991

Author(s):

Richard E. Klingner

Publication:

Symposium Papers

Volume:

127

Abstract:

Discusses the relationship between the topics covered previously in this publication and modern design codes for reinforced concrete. Three modern code-type documents are discussed: the 1988 Uniform Building Code; the Building Seismic Safety Council's 1988 NEHRP document; and the 1982 New Zealand National Standard for Reinforced Concrete Design. The principal requirements of each document with respect to the seismic design of reinforced concrete buildings are summarized, and the philosophical bases of those requirements are reviewed.

DOI:

10.14359/3026


Document: 

SP127-11

Date: 

October 1, 1991

Author(s):

Sharon L. Wood

Publication:

Symposium Papers

Volume:

127

Abstract:

The influence of the amount of reinforcement, axial stress, and loading history on the displacement capacity of slender reinforced concrete walls is discussed. Observations are based on the results of 27 laboratory tests of isolated walls. All walls sustained lateral displacements in excess of 1 percent of their height without appreciable loss in strength.

DOI:

10.14359/3024


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