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Monday, May 4, 2020 | History

3 edition of Damping in low-aspect-ratio, reinforced concrete shear walls found in the catalog.

Damping in low-aspect-ratio, reinforced concrete shear walls

C. R. Farrar

Damping in low-aspect-ratio, reinforced concrete shear walls

by C. R. Farrar

  • 337 Want to read
  • 17 Currently reading

Published by Division of Engineering, Office of Nuclear Regulatory Research, U.S. Nuclear Regulatory Commission, Supt. of Docs., U.S. G.P.O. [distributor in Washington, DC .
Written in English

    Subjects:
  • Damping (Mechanics),
  • Nuclear power plants -- Design and construction.,
  • Reinforced concrete construction -- Testing.,
  • Concrete walls -- Testing.

  • Edition Notes

    Other titlesDamping in low aspect ratio, reinforced concrete shear walls.
    Statementprepared by C.R. Farrar, W.E. Baker.
    ContributionsBaker, W. E., U.S. Nuclear Regulatory Commission. Office of Nuclear Regulatory Research. Division of Engineering., Los Alamos National Laboratory.
    The Physical Object
    FormatMicroform
    Paginationx, 70 p.
    Number of Pages70
    ID Numbers
    Open LibraryOL14688911M

      • The core walls vary in thickness from mm to mm. The core walls are typically linked through a series of mm to mm deep reinforced concrete link beams at every level. • These composite link beams typically consist of steel shear plates, or structural steel built-up I-shaped beams, with shear studs embedded in the concrete section. • Punching shear is the potentially high shearing stress developed by the reactive force of a column on a reinforced concrete slab. Shear resistance at column locations therefore governs the.

    In IS and IS, the sections on shear and torsion kept changing from edition to edition without any compelling reason. Shear Design In IS, once the shear force. The increased damping in the in situ floors can be attributed to the presence of support walls. As the in situ floors were constructed with walls above and below the floor edges, the mass of the wall framing and the gypsum board, as well as the friction of wall framing Author: L. Xu.

    Full text of "Seismic Design Of Buildings To Eurocode 8" See other formats. Improving Ductility and Shear Capacity of Reinforced Concrete Columns with the Retro-Belt™ Retrofit System Saatcioglu, M. / Mes, D. / Chakrabarti, S. / Selby, R. G. / .


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Damping in low-aspect-ratio, reinforced concrete shear walls by C. R. Farrar Download PDF EPUB FB2

Get this from a library. Experimental assessment of damping in low aspect ratio, reinforced concrete shear wall structure. [C R Farrar; J G Bennett; Los Alamos National Laboratory.; U.S. Nuclear Regulatory Commission. Office of Nuclear Regulatory Research. Division of Engineering.].

Get this from a library. Damping in low-aspect-ratio, reinforced concrete shear walls. [C R Farrar; W E Baker; U.S. Nuclear Regulatory Commission. Office of Nuclear Regulatory Research. Division of Engineering.; Los Alamos National Laboratory.].

Twelve low-aspect-ratio reinforced concrete walls were constructed and tested at the University at Buffalo to develop validated equations for peak shear strength and hysteretic rules for nonlinear response-history analysis.

The pretest analysis and constructionof the walls are described. Global force-displacement relationships are by:   Procedures defined in Appendix A of ACI were found to underestimate the strength of lightly reinforced walls and tended to overestimate the strength of walls with more than times the minimum web reinforcement ratio.

A reasonable lower bound to the shear strength of low-rise walls with minimum web reinforcement was found to be 6 û f' by: This report summarizes the information obtained from static and dynamic tests of scale-model Seismic Category 1 structures (exclusive of containment) on the damping of.

Damping in low-aspect-ratio, reinforced concrete shear walls [microform] / prepared by C.R. Farrar, W.E. Shear wall ultimate drift limits [microform] / prepared by T.A. Duffey, A. Goldman, C.R. Farrar; Probability-based evaluation of degraded reinforced concrete components in. Damping in low-aspect-ratio, reinforced concrete shear walls.

Earthquake Engineering & Structural Dynamics 24 (3): Crossref, Google Scholar. FEMA. Cited by: 1. Experiments were conducted to measure the damping in low-aspect-ratio, reinforced concrete shear walls with the specific intent of obtaining a better understanding of how this parameter changes.

Six recommendations are made for analysis and design of low aspect ratio, reinforced concrete walls, namely, 1) at levels of lateral force smaller than 30% of peak strength, the maximum reduction. Damping in low-aspect-ratio, reinforced concrete shear walls Technical Report Farrar, C R ; Baker, W E This report summarizes the information obtained from static and dynamic tests of scale-model Seismic Category 1 structures (exclusive of containment) on the damping of.

critical damping ratios of 11% for shear walls and 24% for masonry walls. Farrar and Baker [3] performed an experimental study on 1/3-scaled low aspect ratio RC shear walls.

It was concluded that within elastic range of the testing, damping ratio was found to be 2%, and when the damages increased and re-bars yielded, this value increased up to 22%. This paper is intended to evaluate the seismic performance of a twelve-story reinforced concrete moment-resisting frame structure with shear walls using 3D finite element models according to such seismic design regulations as Federal Emergency Management Agency (FEMA) guideline and seismic building codes including Los Angeles Tall Building Structural Design Council (LATBSDC) by: Create a new account.

Are you an ASCE Member. We recommend that you register using the same email address you use to maintain your ASCE Member account. Reinforced Concrete (RC) walls are classified according as load bearing walls, non- load bearing walls, shear walls, flexural shear walls, and squat shear walls.

Shear walls are part of the lateral force resisting system that carries vertical loads, bending moments about the wall major axis, and shear forces parallel to the wall length. • Use shear wall testing data from “Seismic Response of Low Aspect Ratio Reinforced Concrete Shear Walls,” Model and analyze coupled SSI system and benchmark against experimental and known results.

Farrar and J. Bennett, "Experimental Assessment of Damping in Low Aspect Ratio, Reinforced Concrete Shear Wall Structures," Los Alamos National Laboratory report LAMS, NUREG/CR (August ). lateral stiffness and high load-carrying capacity, reinforced concrete shear walls are widely used in high-rise struc-tures [1,2].

As is known, based on different height-to-depth ratio, the cantilever shear walls can be categorized as slender walls or squat walls. The slender wall is essen-tially a cantilever, which will experience the largest.

Abstract. An investigation into the structural properties and seismic responses of a low aspect ratio shear wall building, which has construction similarity to typical nuclear pla. Reinforced-concrete shear walls, which have high in-plane stiffness, have proven to provide excellent, cost-effective lateral resistance in comparison to other lateral-resisting systems (Cardenas et al.Wyllie et al.Fintel ).

Epackachi, S. and A. Whittaker, "A validated numerical model for predicting the in-plane seismic response of lightly reinforced, low aspect ratio RC shear walls," Engineering Structures, Vol. Alma mater: University of Melbourne, University of. Out-of-Plane Behavior of Load-Bearing Reinforced Masonry Shear Walls.

Shady Salem, Mohamed Ezzeldin, Wael El-Dakhakhni Seismic Risk Assessment of a Story Reinforced Concrete Dual-System Building Considering Mainshock and Aftershock Hazard Damage and Peak Shear Strength of Low-Aspect-Ratio Reinforced Concrete Shear Walls. Jonathan P.In particular, Paulay et al., faced the problem of the ductility in earthquake resisting squat shear walls; Duffey et al.

investigated the drift limits for low aspect ratio R/C concrete shear walls by reviewing the open literature for appropriate experimental data; Salonikios et al. investigated the cyclic load behaviour of low-slenderness R/C Cited by:   Multi-storey reinforced concrete shear wall buildings with symmetry in plan and of aspect ratio (h/d) ranging from 1 to 4 resting on raft foundation were considered.

The shear walls were placed symmetrically along the exterior frames (SWE), core (SWI) and all Author: B. R. Jayalekshmi, H. K. Chinmayi.