Stiffness of low-aspect-ratio, reinforced concrete shear walls by C. R. Farrar

Cover of: Stiffness of low-aspect-ratio, reinforced concrete shear walls | C. R. Farrar

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

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Subjects:

  • Nuclear power plants -- Design and construction.,
  • Reinforced concrete construction -- Testing.,
  • Concrete walls -- Testing.,
  • Nuclear power plants -- Earthquake effects.

Edition Notes

Book details

Other titlesStiffness of 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
Paginationxiii, 128 p.
Number of Pages128
ID Numbers
Open LibraryOL17678358M

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Keywords: reinforced concrete; shear strength; shear walls; stiffness; strength degradation. Date: 9/1/ Abstract: 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.

Twelve large-size, low aspect ratio, rectangular, reinforced concrete shear walls were built and tested at the University at Buffalo.

The key findings of this study are. Get this from a library. Stiffness of 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.]. Stiffness of low-aspect-ratio, reinforced concrete shear walls. Washington, DC: Division of Engineering, Office of Nuclear Regulatory Research, U.S. Reinforced concrete shear walls book Regulatory Commission: Supt. of Docs., U.S. G.P.O. [distributor] Stiffness of low-aspect-ratio, reinforced concrete shear walls [microform]Stiffness of low-aspect-ratio.

Low aspect ratio reinforced concrete (RC) shear walls provide the lateral strength and stiffness for many low-rise to medium-rise buildings and nearly all safety-related nuclear structures. Results from a series of experiments designed to measure the stiffness of low-aspect-ratio, reinforced-concrete shear walls subjected reinforced concrete shear walls book simulated seismic inputs on a shake table are reported.

The geometry of the test structures allows them to be modeled as single-degree-of-freedom systems. Forces were estimated from accelerometer measurements on masses attached to the Cited by: 5.

Get this from a library. Stiffness of low rise reinforced concrete shear walls. [American Society of Civil Engineers.

Working Group on Stiffness of Concrete Shear Wall Structures.;]. Product Information. Prepared by the Working Group on the Stiffness of Concrete Shear Wall Structures of the ASCE Dynamic Analysis Committee, this report aims to review the methods used to compute the in-plane stiffness of low aspect ratio reinforced concrete shear.

For buildings constructed with low-aspect-ratio reinforced concrete shear walls, a Stiffness of low-aspect-ratio repair may not be necessary if the earthquake-induced displacement of the wall is less than the displacement associated with peak shear force.

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: @article{osti_, title = {Static and simulated seismic testing of the TRG-7 through shear wall structures}, author = {Farrar, C R and Baker, W E and Dove, R C}, abstractNote = {Results from the static, simulated seismic base excitation, and experimental modal analysis tests performed on the TRG-7 through structures are reported.

Charles R. Farrar and William E. Baker, Experimental assessment of low‐aspect‐ratio, reinforced concrete shear wall stiffness, Earthquake Engineering & Structural Dynamics, 22, 5, (), (). 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: The values of longitudinal and transverse reinforcement ratio used in the walls were and %, respectively for squat shear walls and and %, respectively for slender shear walls.

The observed failure mode in squat shear wall was by shear and in slender shear wall, it was by : N. Ganesan, P. Indira, P. Seena. Introduction. In seismic design, a displacement-based approach recently has been widely employed instead of a traditional force-based approach in which the deformation of structures is the point of these structures, the effective stiffness of RC coupling beams plays an important role in the seismic performance of the structural walls and the whole structure because it may Cited by: 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. The ACI guideline for the shear strength of squat shear walls is based on empirical expressions for the shear transfer capacities of concrete and shear reinforcements originally established for slender beam tests.

The shear transfer capacity of horizontal shear reinforcement is formulated using the 45° truss analogy derived from the Cited by: 1. “Stiffness of Low Rise Reinforced Concrete Shear Walls”, Working Group on Stiffness of Concrete Shear Wall Structures, American Society of Civil Engineers, Appendix A.

"Summary of Shear Wall Tests Performed at Los Alamos National Laboratory," pp. A-1 -A • 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.

WHITE C.A., UNIVERSITY OF CALIFORNIA, BERKELY and STOJADINOVIC B., SWISS FEDERAL INSTITUTE OF TECHNOLOGY., “Hybrid simulation of the. 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.

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 ).

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.

and slender precast tilt-up reinforced concrete wall panels. Recently, industrial buildings in New Zealand have. been built with tall and slender tilt-up precast concrete wall panels.

Some of these walls panels are cantilevered from the ground and directly support the roof steelwork. • 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.

Seismic Design of Cast-in-Place Concrete Special Structural Walls and Coupling Beams A Guide for Practicing Engineers Very low aspect ratio beams are better designed using the strut-and-tie model of ACI Appendix A. Design of these beams is not covered in this Guide.

SEAW (). “Special reinforced concrete shear walls as building. • 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. The system of large lightly reinforced walls is considered to qualify for a basic q factor equal to that for wall systems with uncoupled ductile walls designed and detailed according to the much more demanding rules for ductile walls of Ductility Class Medium (DCM).

Walls with length /w of less than 4 m (or two-thirds of the total height in. Outrigger Design for High-Rise Buildings Hi Sun Choi Outrigger systems are rigid horizontal structures designed to improve a building s stability and strength by connecting the building core or spine to distant columns, much in the way an outrigger can prevent a canoe from overturning.

Full text of "Seismic Design Of Buildings To Eurocode 8" See other formats. Fibre Reinforced. Cement and Concrete,vol 2, paper9 pp. The investigation presented in this report assessed the. long-term strength durability of Alkali Resistant-Glass.

Fibre Reinforced Concrete (AR-GFRC) and Polymer. Modified-Glass Fibre Reinforced Concrete (P-GFRC) systems. Both GFRC systems exhibited strength decreases.

History of Finite Element Analysis. Finite Element Analysis (FEA) was first developed in by R. Courant, who utilized the Ritz method of numerical analysis and minimization of variational calculus. A paper published in by M. Turner, R. Clough, H. Martin, and L. Topp established a broader definition of numerical analysis.

The paper centered on the "stiffness and deflection. Improving Ductility and Shear Capacity of Reinforced Concrete Columns with the Retro-Belt™ Retrofit System Saatcioglu, M.

/ Mes, D. / Chakrabarti, S. / Selby, R. Architecture and Civil Engineering. D-ARCH: Architecture ; D-BAUG: Civil, Environmental and Geomatic Engineering; Engineering Sciences. D-BSSE: Biosystems Science and Engineering.

Large tanks tend to have a low aspect ratio (height to width) and are cylindrical in design with a domed roof. Storage pressures in these tanks are very low, less than 5 psig. The outer walls are made of reinforced concrete and are designed to safely contain the contents of the inner tank in the extremely unlikely event of it developing a leak.

Advanced High Strength Natural Fibre Composites in Construction Edited by of natural fibre composite applications for sustainable construction Design of natural fibre composites for shear strengthening of reinforced concrete beams Proposed design model for shear strengthening of reinforced beam using kenaf fibre reinforced.

The experimental program presents the obtained results of tested eight high strength self compacting concrete I- beams specially reinforced to ensure a shear failure. All beams were tested simply supported along span mm and subjected to four lines loadings until failure.

stiffness shear fig ply plane laminates delamination plate properties fracture load thickness fatigue You can write a book review and share your experiences.

Other readers will always be interested in your opinion of the books you've read. Whether you've loved the book or not. earthquake, was a regular, eight-storey reinforced concrete perforated shear wall structure (Plate ), and like St John's was constructed in the s and was designed for the same force coefficient.

Along the two shorter sides of the building the shear walls were perforated by. Cellulose is the main reinforcing constituent in plant cell walls. It is present in the form of aligned poly-β(1,4)-d-glucan molecules in extended chain conformation assembled into microfibrils of high modulus and tensile ibrils have a lateral dimension of typically 5−10 nm, depending on plant source, and are several micrometers in length.

Often, cellulose materials are based Cited by:. Based on an historical approach of the science of concrete and reinforced concrete in particular, this paper calls for the exploration of radical changes in three key aspects of concrete use: reinforcement, binder content, and implementation methods.reinforced mechanical polymer woodhead publishing publishing limited woodhead publishing limited strength fiber matrix science tensile modulus journal mechanical properties based You can write a book review and share your experiences.

Other readers will always be.Full text of "Advanced Vehicle Technology Heinz Heisler" See other formats.

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