Seismic Design Methodology for Precast Concrete Diaphragms Part 2: Research Program

Fleischman, Robert B.; Naito, Clay; Restrepo, José I.; Sause, Richard; Ghosh, Suman; Wan, Guo Chun; Schoettler, Matt; Cao, Liling

doi:10.15554/pcij.11012005.14.31

Cited by 25 publications

(10 citation statements)

References 5 publications

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“…10(b)] of diaphragmsensitive precast buildings (Schoettler et al 2009). In particular, an industry-supported research program, the diaphragm seismic design methodology (DSDM) project (Fleischman et al 2005a(Fleischman et al , 2013, has resulted in new seismic design recommendations (BSSC 2009;Kelly and Ghosh 2014) and code changes for precast concrete diaphragms in the United States, as described in more detail subsequently.…”

Section: Floor Diaphragmsmentioning

confidence: 99%

Seismic-Resistant Precast Concrete Structures: State of the Art

et al. 2018

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Precast concrete facilitates a construction method using durable and rapidly erectable prefabricated members to create costeffective and high-quality structures. In this method, the connections between the precast members as well as between the members and the foundation require special attention to ensure good seismic performance. Extensive research conducted since the 1980s has led to new precast concrete structural systems, designs, details, and techniques that are particularly suited for use in regions of high seismic hazard. This paper reviews the state of the art of these advances, including code developments and practical applications, related to four different systems: (1) moment frames; (2) structural walls; (3) floor diaphragms; and (4) bridges. It is concluded from this review that the widespread use of precast concrete in seismic regions is feasible today and that the jointed connection innovation introduced through precast research leads to improved seismic performance of building and bridge structures.dividual papers. This paper is part of the Journal of Structural Engineering, © ASCE, ISSN 0733-9445. © ASCE 03118001-1 J. Struct. Eng. J. Struct. Eng., 2018, 144(4): 03118001 Downloaded from ascelibrary.org by University of Notre Dame on 01/17/18. Copyright ASCE. For personal use only; all rights reserved. © ASCE 03118001-2 J. Struct. Eng. J. Struct. Eng., 2018, 144(4): 03118001 Downloaded from ascelibrary.org by University of Notre Dame on 01/17/18. Copyright ASCE. For personal use only; all rights reserved. © ASCE 03118001-3 J. Struct. Eng. J. Struct. Eng., 2018, 144(4): 03118001 Downloaded from ascelibrary.org by University of Notre Dame on 01/17/18. Copyright ASCE. For personal use only; all rights reserved. © ASCE 03118001-4 J. Struct. Eng. J. Struct. Eng., 2018, 144(4): 03118001 Downloaded from ascelibrary.org by University of Notre Dame on 01/17/18. Copyright ASCE. For personal use only; all rights reserved. © ASCE 03118001-5 J. Struct. Eng. © ASCE 03118001-10 J. Struct. Eng. J. Struct. Eng., 2018, 144(4): 03118001 Downloaded from ascelibrary.org by University of Notre Dame on 01/17/18. Copyright ASCE. For personal use only; all rights reserved. © ASCE 03118001-11 J. Struct. Eng. J. Struct. Eng., 2018, 144(4): 03118001 Downloaded from ascelibrary.org by University of Notre Dame on 01/17/18. Copyright ASCE. For personal use only; all rights reserved. © ASCE 03118001-18 J. Struct. Eng. J. Struct. Eng., 2018, 144(4): 03118001 Downloaded from ascelibrary.org by University of Notre Dame on 01/17/18.

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Section: Floor Diaphragmsmentioning

confidence: 99%

Seismic-Resistant Precast Concrete Structures: State of the Art

et al. 2018

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“…The initial program is summarized in Fleischman et al (2005aFleischman et al ( , 2005bFleischman et al ( , and 2013. Responses of conventional diaphragm joint connections in tension ) and in shear ) were determined.…”

Section: Seismic Design Of Precast Concrete Diaphragms: a Guide For Pmentioning

confidence: 99%

Seismic design of precast concrete diaphragms. a guide for practicing engineers

Ghosh¹,

Cleland²,

Naito³

2017

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“…The building, shown in Figure 2-19, was subjected to extensive shake table testing on the NEES large high-performance outdoor shake table. Although researchers (Fleischman et al 2005) focused mainly on the interaction of the two hybrid walls with the surrounding building, their performance was evaluated when they were connected to the floor slabs using slotted insert shear connectors. The connectors, designed by IVI Inc., allowed for the vertical uplift of the wall as the building was subjected to different intensities of earthquakes.…”

Section: Quasi-static Loadingmentioning

confidence: 99%

“…Erkman and Schultz (2009) used an extension of Kurama's model to designate the self-centering behavior of precast walls with various PT configurations even though some PT tendons were allowed to yield. Belleri et al (2013) used different rocking wall modeling techniques, including a fiber model (as shown in Figure 2-23a) to compare the calculated nonlinear time history response of precast walls adopted as lateral force resisting systems of the parking structure at UCSD (Fleischman et al 2005). As they reported, the fiber elements used in all these model are based on a force formulation and on the assumption that plane sections remain plane, which is not true for regions of the wall immediately adjacent to the wall-foundation interface.…”

Section: Fiber Models and Finite Element Modelsmentioning

confidence: 99%

“…Shake table test of precast concrete building at UCSD(Fleischman et al 2005) Marriot (2009) reported on experimental shake table testing of a total of five post-tensioned walls, including one single precast wall and four walls with different configurations of external energy dissipaters with either fluid viscous dampers (FVD), tension-compression yielding mild steel hysteretic dampers, or a combination of both. Using both near-field and far-field design level and maximum earthquake excitations, the performance of test walls was examined.…”

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Seismic performance of unbonded post-tensioned precast wall systems subjected to shake table testing

Nazari

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Post-tensioned precast concrete rocking walls, as a seismic resilient system, dissipate energy imparted to them during an earthquake through the inherent viscous damping, radiation damping due to the wall impacting the foundation, and any available hysteretic damping. A shake table study on eight rocking wall units designed with different quantities of hysteretic damping ratio varying between 4 to 15%, generally demonstrated their satisfactory seismic performance during design-level and higher intensity earthquake motions. The test results confirmed lower participation of energy dissipation due to impacts as the hysteretic component increased. Larger hysteretic damping also led to greater reduction in the maximum drift of rocking walls as well as number of large drift cycles after the first peak of response. While larger displacement amplitude was achieved for the walls relying on lower hysteretic damping, it was shown that the duration of dynamic response of these walls was reduced by negative rate of input energy, which favorably removed a part of the seismic energy imparted to the system.

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Seismic Design Methodology for Precast Concrete Diaphragms Part 2: Research Program

Cited by 25 publications

References 5 publications

Seismic-Resistant Precast Concrete Structures: State of the Art

Seismic-Resistant Precast Concrete Structures: State of the Art

Seismic design of precast concrete diaphragms. a guide for practicing engineers

Seismic performance of unbonded post-tensioned precast wall systems subjected to shake table testing

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