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WebinarSeismic Design of Precast Concrete Diaphragms

WebinarSeismic Design of Precast Concrete Diaphragms

Seismic Design of Precast Concrete Diaphragms

of these. Concrete diaphragms can be conventionally reinforced or prestressed, and can be cast-in-place concrete slabs (often post-tensioned), topping slabs on metal deck or precast concrete, or interconnected precast concrete slabs without topping, though the last system has not been used much in structures assigned to SDC D, E, or F.

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Webinar: Seismic Design of Precast Concrete Diaphragms ...

Feb 12, 2019  This webinar will explain the alternative diaphragm design force level as well as the precast diaphragm design procedure of ASCE 7-16, which has now been adopted by ACI 318-19, which in turn references two new standards developed by ACI Committee 550: ACI 550.4, Qualification of Precast Concrete Diaphragm Connections and Reinforcement at Joints for Earthquake Loading and

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Seismic Design of Cast-in-Place Concrete Diaphragms ...

steel, concrete, or combinations of these. Concrete diaphragms can be conventionally reinforced or prestressed, and can be cast-in-place concrete, topping slabs on metal deck or precast concrete, or interconnected precast concrete without topping, though the last system is seldom used in structures assigned to Seismic Design Categories D, E, or F.

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Seismic Design Methodology for Precast Concrete

precast concrete diaphragms in recent earthquakes,1 and the subsequent research2,3 has underscored the need to develop and demonstrate a reliable seismic design methodology for precast/prestressed floor diaphragms. While recent modifications to diaphragm design prac-tice have been codified, e.g., 1997 Uniform Building Code

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(PDF) Seismic Design of Precast Concrete Diaphragms: A ...

Seismic design of precast concr ete diaphragms: A guide for practicing engi neers, GCR 17 -917-47, NEHRP Seismic Design Technical Brief No. 13, produced by the Ap plied Technology Co uncil for the ...

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Seismic Design of Precast Concrete Diaphragms

of these. Concrete diaphragms can be conventionally reinforced or prestressed, and can be cast-in-place concrete slabs (often post-tensioned), topping slabs on metal deck or precast concrete, or interconnected precast concrete slabs without topping, though the last system has not been used much in structures assigned to SDC D, E, or F.

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Seismic Design Methodology for Precast Concrete

The Precast/Prestressed Concrete Institute (PCI) is conducting a large “area of emphasis” project to develop an industry-endorsed comprehensive seismic design methodology for precast concrete floor diaphragms. A multi-university research team from the University of Arizona (UA), Lehigh Univer-

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Seismic Behavior of Precast Parking Structure Diaphragms

design procedures may have produced diaphragms with inadequate strength, and the diaphragms may have failed under the in-plane forces that devel­ oped during the earthquake. This paper describes research on the seismic behavior of precast parking structure diaphragms. The research in­ volves analysis of a prototype precast

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AC468 Alternative Seismic Design of Precast Concrete ...

AC468 applies to the alternative seismic design methodology of horizontal precase concrete diaphragms mandatory in buildiings assigned to Seismic Design Category (SDC) C, D, E, or F, and optional in SDC B. It also applies to the qualification of propriet

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Effect of Dimension and Detail on the Capacity of Precast ...

diaphragms in precast parking struc tures. Many of the findings, however, can be applied to long-span precast concrete diaphragms in general. Ac cordingly, a companion PCI JOUR NAL paper6 presents seismic design guidelines for these diaphragms. In that paper, the results presented here are interpreted with respect to seismic

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Establishment of performance-based seismic design factors ...

Establishment of performance-based seismic design factors for precast concrete floor diaphragms Dichuan Zhang1 and Robert B. Fleischman2,*,† 1Nazarbayev University 53 Kabanbay Batyr Ave, Astana, 010000, Kazakhstan 2Department of Civil Engineering and Engineering Mechanics, University of Arizona, Tucson, AZ, 85721, U.S.A. SUMMARY ...

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Precast Topping - Diaphragm Design - Structural ...

Oct 13, 2015  This is regarding the design of a diaphragm for a podium building which will utilize precast plans for the podium level. However the question applies to any situation. When meeting with the precaster they indicated that they would prefer the topping handle the diaphragm forces and to be designed by the EOR. The topping would be structural.

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pdf Download ACI 550.5: Code Requirements for the Design ...

This standard describes code requirements for the design of precast concrete diaphragms subject to earthquake motions where used under the design provisions of ASCE/SEI 7-16 Section 12.10.3 and ACI 318. The response of precast concrete diaphragms under earthquake motions depends primarily on the strength, stiffness, and deformation capacities of the connectors and the reinforcement at joints ...

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Precast Concrete Concrete Construction Magazine

Feb 20, 2020  PCI Announces Annual Design Awards Winners ... Webinar: Seismic Design of Precast Concrete Diaphragms April 2, 2019, 1:00 p.m. to 2:00 p.m. EST. ... Precast Concrete Manufacturers to Benefit From Recently Approved FAA Specifications

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Universities, Students Seizing Ground Floor ... - Precast

May 29, 2010  The world of academia is tackling key issues, including improving the seismic methodology of precast concrete diaphragms. By Michael D. Cole. With precast concrete increasingly garnering recognition in the field for its technological advantages, quality, and ease of installation and maintenance, the synergies created by the worlds of industry and academia in solving important

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diaphragm design Topic - Concrete

Apr 01, 2021  The American Concrete Institute. Founded in 1904 and headquartered in Farmington Hills, Michigan, USA, the American Concrete Institute is a leading authority and resource worldwide for the development, dissemination, and adoption of its consensus-based standards, technical resources, educational programs, and proven expertise for individuals and organizations involved in concrete design ...

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Seismic Design Methodology for Precast Concrete

on precast concrete diaphragms. The effort, which is jointly funded by the National Science Foundation (NSF) through the Grant Opportunities for Academic Liaison with Industry (GOALI) Program, has an ultimate goal of develop-ing a comprehensive seismic design methodology for precast/ prestressed concrete floor diaphragms. The project has been

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Only One Week Until BSSC’s Precast Concrete Webinar ...

Mar 13, 2017  There is still time to register for the webinar, “Seismic Design of Precast Concrete Structures,” hosted by the National Institute of Building Sciences Building Seismic Safety Council (BSSC).

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On-Demand Course: Seismic Design of Precast Concrete ...

The alternative is permitted to be used for other precast concrete diaphragms, cast-in-plane concrete diaphragms, and wood diaphragms supported on wood framing. All diaphragms other than precast concrete diaphragms in SDC C, D, E, or F buildings may continue to be designed using the design force level in ASCE 7-16 Section 12.10.1, which is ...

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(PDF) Seismic Design of Precast Concrete Diaphragms: A ...

Seismic design of precast concr ete diaphragms: A guide for practicing engi neers, GCR 17 -917-47, NEHRP Seismic Design Technical Brief No. 13, produced by

get price

Seismic Design Methodology for Precast Concrete

on precast concrete diaphragms. The effort, which is jointly funded by the National Science Foundation (NSF) through the Grant Opportunities for Academic Liaison with Industry (GOALI) Program, has an ultimate goal of develop-ing a comprehensive seismic design methodology for precast/ prestressed concrete floor diaphragms. The project has been

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Hollow Core Diaphragm Design - Precast/Prestressed ...

The webinar on Hollow Core Diaphragm Design provides a review of the code requirements from IBC 2015, ASCE 7-10, and ACI 318-14 for the design of diaphragms in general. The provisions are applied to precast concrete hollow core construction. A design example following the PCI Manual for the Design of Hollow Core Slabs and Walls is presented ...

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Seismic Design Methodology for Precast Concrete Floor ...

Jan 31, 2016  Seismic Design Methodology for Precast Concrete Floor Diaphragms Research to Practice Webinar April 23, 2012 Sponsored by the Earthquake Engineering Research Institute (EERI)

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An evaluation method for precast concrete diaphragm ...

based formulation for precast concrete diaphragms has been outlined by the Building Seismic Safety Council Committee TS4. 5 This method relies not only on the This paper presents the results of a comprehensive research project on the development of a seismic design methodology for precast concrete diaphragms.

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Seismic Design Methodology for Precast Building Diaphragms ...

This project will assess the behavior of long-span precast concrete diaphragms to input earthquake excitation. This is a pre-NEES project being carried out by a multi-university consortium: University of Arizona, Lehigh University and the University of California at San Diego.

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Only One Week Until BSSC’s Precast Concrete Webinar CACPLA

Mar 10, 2017  There is still time to register for the webinar, “Seismic Design of Precast Concrete Structures,” hosted by the National Institute of Building Sciences Building Seismic Safety Council (BSSC). This is the second webinar in the 2017 series sponsored by the

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The Design of Precast Concrete Skeletal Structures

The Design of Precast Concrete Skeletal Structures LECTURE 5 FLOOR DIAPHRAGM ACTION 5.1 Introduction to Floor Diaphragms The stability of precast concrete buildings is provided in two ways. First the horizontal loads due to wind are transmitted to shear walls or moment resisting frames by the floor (and/or the roof) acting as a ...

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An ACI Standard - concrete

the Design of Precast Concrete Diaphragms for Earthquake Motions (ACI 550.5M-18) and Commentary ACI 550.5M-18 Reported by Joint ACI-ASCE Committee 550 An ACI Standard . First Printing September 2018 ISBN: 978-1-64195-027-5 Code Requirements for the Design of Precast Concrete Diaphragms for Earthquake

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ESR-3010 Issued for Precast Concrete Diaphragm Concrete ...

Sep 01, 2016  Precast/Prestressed Concrete Institute (PCI) has received confirmation from ICC Evaluation Service, LLC (ICC-ES), that its ESR-3010 Precast Concrete Diaphragm seismic design methodology complies with the provisions of the 2012 and 2015 International Building Code.

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Important Developments in the Seismic Design of Diaphragms

ASCE 7-16 includes two significant new items related to the seismic design of diaphragms. First, a new Section 12.10.3, Alternative Design Provisions for Diaphragms including Chords and Collectors, has been added to Section 12.10, Diaphragm Chords and Col

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Seismic Design - Webinar Recordings

Seismic Detailing of Special Shear Walls and Coupling Beams by ACI 318-11 and ACI 318-14. Add to Cart. Frame of Reference: Steel Moment Frames Explained. Add to Cart. Seismic Design Using Structural Dynamics (2015 IBC / ASCE 7-10 / ACI 318-14) Add to Cart. Wind and Seismic Design of Precast Concrete Parking Structures.

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Establishment of performance-based seismic design factors ...

This paper presents an analytical study used to establish design factors for a new seismic design methodology for precast concrete floor diaphragms. The design factors include diaphragm force amplification factors Ψ and diaphragm shear overstrength factors Ω v. The Ψ factors are applied to the ASCE7-05 diaphragm design forces to produce ...

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