Seismic behavior of precast parking structure diaphragms

Robert B Fleischman, R. Sause, A. B. Rhodes, S. Pessiki

Research output: Chapter in Book/Report/Conference proceedingConference contribution

6 Citations (Scopus)

Abstract

Six parking structures collapsed during the 1994 earthquake in Northridge, California. Most of the damaged parking structures employed precast concrete systems in which the floor system is intended to serve as a stiff diaphragm between shear walls. However, large distances between shear walls and the flexibility of joints between precast elements may result in a floor system that is quite flexible. This paper presents a study of the role of the diaphragm deformations in the seismic performance of these structures. Several significant issues regarding the behavior of the parking structures were identified. These include large drift demands on columns due to excessive deformations of the diaphragms; shear wall configurations that cause the diaphragm to twist in plan amplifying these deformations; and cross-sections in critical locations that have insufficient strength to meet the earthquake demands. Possible retrofit concepts are presented.

Original languageEnglish (US)
Title of host publicationStructures Congress - Proceedings
PublisherASCE
Pages1139-1146
Number of pages8
Volume2
StatePublished - 1996
Externally publishedYes

Fingerprint

Parking
Diaphragms
Shear walls
Earthquakes
Precast concrete

ASJC Scopus subject areas

  • Building and Construction
  • Architecture

Cite this

Fleischman, R. B., Sause, R., Rhodes, A. B., & Pessiki, S. (1996). Seismic behavior of precast parking structure diaphragms. In Structures Congress - Proceedings (Vol. 2, pp. 1139-1146). ASCE.

Seismic behavior of precast parking structure diaphragms. / Fleischman, Robert B; Sause, R.; Rhodes, A. B.; Pessiki, S.

Structures Congress - Proceedings. Vol. 2 ASCE, 1996. p. 1139-1146.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Fleischman, RB, Sause, R, Rhodes, AB & Pessiki, S 1996, Seismic behavior of precast parking structure diaphragms. in Structures Congress - Proceedings. vol. 2, ASCE, pp. 1139-1146.
Fleischman RB, Sause R, Rhodes AB, Pessiki S. Seismic behavior of precast parking structure diaphragms. In Structures Congress - Proceedings. Vol. 2. ASCE. 1996. p. 1139-1146
Fleischman, Robert B ; Sause, R. ; Rhodes, A. B. ; Pessiki, S. / Seismic behavior of precast parking structure diaphragms. Structures Congress - Proceedings. Vol. 2 ASCE, 1996. pp. 1139-1146
@inproceedings{074b02290101470eb2b21bd0dab7f5cf,
title = "Seismic behavior of precast parking structure diaphragms",
abstract = "Six parking structures collapsed during the 1994 earthquake in Northridge, California. Most of the damaged parking structures employed precast concrete systems in which the floor system is intended to serve as a stiff diaphragm between shear walls. However, large distances between shear walls and the flexibility of joints between precast elements may result in a floor system that is quite flexible. This paper presents a study of the role of the diaphragm deformations in the seismic performance of these structures. Several significant issues regarding the behavior of the parking structures were identified. These include large drift demands on columns due to excessive deformations of the diaphragms; shear wall configurations that cause the diaphragm to twist in plan amplifying these deformations; and cross-sections in critical locations that have insufficient strength to meet the earthquake demands. Possible retrofit concepts are presented.",
author = "Fleischman, {Robert B} and R. Sause and Rhodes, {A. B.} and S. Pessiki",
year = "1996",
language = "English (US)",
volume = "2",
pages = "1139--1146",
booktitle = "Structures Congress - Proceedings",
publisher = "ASCE",

}

TY - GEN

T1 - Seismic behavior of precast parking structure diaphragms

AU - Fleischman, Robert B

AU - Sause, R.

AU - Rhodes, A. B.

AU - Pessiki, S.

PY - 1996

Y1 - 1996

N2 - Six parking structures collapsed during the 1994 earthquake in Northridge, California. Most of the damaged parking structures employed precast concrete systems in which the floor system is intended to serve as a stiff diaphragm between shear walls. However, large distances between shear walls and the flexibility of joints between precast elements may result in a floor system that is quite flexible. This paper presents a study of the role of the diaphragm deformations in the seismic performance of these structures. Several significant issues regarding the behavior of the parking structures were identified. These include large drift demands on columns due to excessive deformations of the diaphragms; shear wall configurations that cause the diaphragm to twist in plan amplifying these deformations; and cross-sections in critical locations that have insufficient strength to meet the earthquake demands. Possible retrofit concepts are presented.

AB - Six parking structures collapsed during the 1994 earthquake in Northridge, California. Most of the damaged parking structures employed precast concrete systems in which the floor system is intended to serve as a stiff diaphragm between shear walls. However, large distances between shear walls and the flexibility of joints between precast elements may result in a floor system that is quite flexible. This paper presents a study of the role of the diaphragm deformations in the seismic performance of these structures. Several significant issues regarding the behavior of the parking structures were identified. These include large drift demands on columns due to excessive deformations of the diaphragms; shear wall configurations that cause the diaphragm to twist in plan amplifying these deformations; and cross-sections in critical locations that have insufficient strength to meet the earthquake demands. Possible retrofit concepts are presented.

UR - http://www.scopus.com/inward/record.url?scp=0029773585&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0029773585&partnerID=8YFLogxK

M3 - Conference contribution

VL - 2

SP - 1139

EP - 1146

BT - Structures Congress - Proceedings

PB - ASCE

ER -