evaluation of existing reinforced concrete columns

Evaluation of Existing Reinforced Concrete Columns

EVALUATION OF EXISTING REINFORCED CONCRETE COLUMNS Kenneth J. ELWOOD1 and Jack P. MOEHLE 2 SUMMARY An idealized backbone model defining the key damage states of an existing reinforced concrete column (flexural yielding, shear failure, and axial load failure) is developed using drift capacity models.

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(PDF) Seismic Evaluation of Existing Reinforced Concrete ...

Existing reinforced concrete (RC) columns with short splices in older-type frame structures are prone to either a shear or bond mechanism. Experimental results have shown that the force ...

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(PDF) Seismic evaluation of existing reinforced concrete ...

Seismic evaluation of existing reinforced concrete building columns / Earthquake Spectra, 1996. Stephen Mahin. Download PDF. Download Full PDF Package. This paper. A short summary of this paper. ... Seismic evaluation of existing reinforced concrete building columns /

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Seismic Evaluation of Existing Reinforced Concrete ...

Nov 01, 1996  Past earthquakes have emphasized the vulnerability of reinforced concrete columns having details typical of those built before the mid-1970's. These columns are susceptible to axial-flexural, shear, and bond failures, which subsequently may lead to

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(PDF) Seismic Evaluation of Existing Reinforced Concrete ...

Seismic Evaluation of Existing Reinforced Concrete Building Columns

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Evaluation of Existing Reinforced Concrete Buildings

Evaluation of Existing Reinforced Concrete Buildings 8NCEE – Tutorial, April 21, 2006 Greg Deierlein, Stanford University Kenneth Elwood, Univ. of British Columbia Dawn Lehman, University of Washington John Wallace, Univ. of Calif. at Los Angeles

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(PDF) Seismic Evaluation of Existing Reinforced Concrete ...

Seismic Evaluation of Existing Reinforced Concrete Building Columns

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Classification and Seismic Safety Evaluation of Existing ...

Sep 09, 2007  This study contributes to the critical need for safety assessment tools for existing reinforced concrete structures. Of particular concern is the possibility of collapse due to shear failure followed by axial failure of columns supporting gravity loads. This is a potential threat to a number of existing buildings in seismically active regions.

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Classification and Seismic Safety Evaluation of Existing ...

Request PDF Classification and Seismic Safety Evaluation of Existing Reinforced Concrete Columns This study contributes to the critical need for safety assessment tools for existing reinforced ...

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Performance evaluation of structures with reinforced ...

Jan 01, 2021  The compressive capacity of individual columns can be increased with a gain of the concrete column axial strength for both, original RC columns by 46% (2245 kN for 35 MPa versus 1533 for 21 MPa) and Steel jacketing retrofitted columns by

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Seismic Evaluation of Existing Reinforced Concrete Building

of existing design of a reinforced concrete bare frame, frame with infill and frame with infill and soil effect. In order to examine the performance of these models, the Response Spectrum analysis for seismic evaluation of existing buildings is performed.

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BEHAVIOR EVALUATION FOR REINFORCED CONCRETE

54 Z. Xu et al. Behavior Evaluation for Reinforced Concrete Columns... block”, and load capacity of axial force and moment inte-raction relationship for different section forms have been carried out by Cengiz (1990). ... low section of an existing bridge column have been analy-

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(PDF) Retrofitting of reinforced concrete columns using FRP

Based on the literature available, it is found that most applications and research are focused on the FRP retrofit or repair of existing reinforced concrete columns primarily for improved ductility.

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SHEAR STRENGTH OF CIRCULAR REINFORCED CONCRETE

reinforced concrete columns is investigated based on the evaluation of experimental data from numerous column tests. Key parameters investigated in shear strength model are the column aspect ratio, axial load, amount of transverse reinforcement, and deformation ductility demand. An examination of existing design equations reveals wide difference in

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IS 15988 (2013): Seismic Evaluation and Strengthening of ...

EXISTING REINFORCED CONCRETE BUILDINGS — GUIDELINES 1 SCOPE 1.1 This standard is particularly concerned with the seismic evaluation and strengthening of existing buildings and it is intended to be used as a guideline. 1.2 This standard provides a method to assess the ability of an existing building to reach an adequate level of

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Evaluation of Seismic Assessment Procedures for Existing ...

Existing Reinforced Concrete Structures Damaged in the 2016 Meinong Earthquake ... •Slab-beam-column gravity system - Slab: 12cm - Beam: 24x60cm to 36x85cm and integral with the slab ... Recommended Modeling Parameters and Acceptance Criteria for Nonlinear Analysis in Support of Seismic Evaluation, Retrofit,

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Evaluation of Minimum Longitudinal Reinforcement ...

Evaluation of Minimum Longitudinal Reinforcement 5. Report Date October 1998 Requirements for Reinforced Concrete Columns 6. Performing Organization Code 7. Author(s) 8. Performing Organization Report No. Paul H. Ziehl, Jeffrey E. Cloyd, and Michael E. Kreger Research Report 1473-S 9. Performing Organization Name and Address 10.

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Numerical evaluation of the seismic performance of ...

May 08, 2020  Exposure to aggressive environments is one of the most critical problems of reinforced concrete (RC) structures, which can affect both their static and dynamic behaviour. In this paper, the linear and non-linear performance of existing corroded RC framed structures were studied through an advanced numerical model. Moreover, an extensive literature review of models and approaches used

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Seismic Evaluation And Rehabilitation Of Structures ...

Evaluation, Repair, and Rehabilitation of Concrete Buildings A new advanced technical:steel jacketing for column beam strengthening Seismic retrofit for buildings FEMA 547: Techniques for the Seismic Rehabilitation of Existing Buildings: Chapters 8-11: Steel Japan Researchers test 10 storey concrete building for resilience

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Evaluation of Existing Reinforced Concrete Buildings

Evaluation of Existing Reinforced Concrete Buildings 8NCEE – Tutorial, April 21, 2006 Greg Deierlein, Stanford University Kenneth Elwood, Univ. of British Columbia Dawn Lehman, University of Washington John Wallace, Univ. of Calif. at Los Angeles

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Modelling failures in existing reinforced concrete columns

For the evaluation of existing reinforced concrete buildings subjected to earthquake ground motion, there ex-ists a need for analytical models incorporating the initiation of column shear and axial load failures, in addition to the subsequent strength degradation. Given such a model, an en-gineer could evaluate the influence of column shear and ax-

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Evaluation of Seismic Assessment Procedures for Existing ...

Existing Reinforced Concrete Structures Damaged in the 2016 Meinong Earthquake ... •Slab-beam-column gravity system - Slab: 12cm - Beam: 24x60cm to 36x85cm and integral with the slab ... Recommended Modeling Parameters and Acceptance Criteria for Nonlinear Analysis in Support of Seismic Evaluation, Retrofit,

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Evaluation of Minimum Longitudinal Reinforcement ...

Evaluation of Minimum Longitudinal Reinforcement 5. Report Date October 1998 Requirements for Reinforced Concrete Columns 6. Performing Organization Code 7. Author(s) 8. Performing Organization Report No. Paul H. Ziehl, Jeffrey E. Cloyd, and Michael E. Kreger Research Report 1473-S 9. Performing Organization Name and Address 10.

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BEHAVIOR EVALUATION FOR REINFORCED CONCRETE

54 Z. Xu et al. Behavior Evaluation for Reinforced Concrete Columns... block”, and load capacity of axial force and moment inte-raction relationship for different section forms have been carried out by Cengiz (1990). ... low section of an existing bridge column have been analy-

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Evaluation of Existing Reinforced Concrete Buildings with ...

3 2nd International Balkans Conference on Challenges of Civil Engineering, BCCCE, 23-25 May 2013, Epoka University, Tirana, Albania. Evaluation of Existing Reinforced Concrete Buildings with Structural Package Programs Ali DEMİR1, Muhiddin BAĞCI2, Hakan BAŞARAN3 1,2 Celal Bayar University, Department of Civil Engineering, P.O. Box 45140, Muradiye, Manisa, Turkey

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SEISMIC EVALUATION AND RETROFIT OF EXISTING

2.1. First Level Screening Method of Seismic Evaluation . In this level, seismic capacity is calculated based upon the cross sectional area of vertical elements, their shapes and the concrete compressive strength. The vertical elements are divided into three groups depending upon 0 /Dh. values of different column and wall types. The basic ...

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(PDF) Retrofitting of reinforced concrete columns using FRP

Based on the literature available, it is found that most applications and research are focused on the FRP retrofit or repair of existing reinforced concrete columns primarily for improved ductility.

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437R-19: Strength Evaluation of Existing Concrete Buildings

including conventionally reinforced cast-in-place concrete, precast-prestressed concrete, precast post-tensioned concrete, and post-tensioned cast-in-place concrete. 1.2—Scope 1.2.1 Background and limitations —Engineering judgment based on rational, scientific principles is critical in the strength evaluation of concrete structures.

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Classification and Seismic Safety Evaluation of Existing ...

Classification and Seismic Safety Evaluation of Existing Reinforced Concrete Columns. This study contributes to the critical need for safety assessment tools for existing reinforced concrete structures. Of particular concern is the possibility of collapse due to shear failure followed by axial failure of columns supporting gravity loads.

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5 Methods for On-Site Evaluation of Concrete Strength ...

On-site evaluation of concrete strength is a challenge in the assessment of existing structures. Combination of NDT methods can be used to measure strength.

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Evaluation of Code Provisions Predicting the Concrete ...

19 小时前  examined steel-reinforced concrete beams 305 mm in height and 152-and-610 mm in width, noting that the width of the beam did not affect the shear strength.Sherwood et al., 2006 had also documented the independence of shear strength from the width of the element.Taylor, 1972, on the other hand, claimed that in deep-narrow beams, which have depth-to-width ratio greater than four, the shear ...

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Seismic evaluation method for existing reinforced concrete ...

May 17, 2019  The purpose of this study is to seismically evaluate reinforced concrete buildings in the northern region of Morocco. In the past, the area have suffered from numerous earthquakes, lately the 2004 earthquake near the city of Al Hoceima (Mw of 6.4 causing more than 600 fatalities) and the region is constantly subject to seismic threats. A total number of 2746 residential buildings from the ...

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Seismic Vulnerability Evaluation of Existing Reinforced ...

3. IZIIS/CGS METHODOLOGY FOR SEISMIC VULNERABILITY EVALUATION The IZIIS/CGS methodology for seismic vulnerability evaluation of existing reinforced concrete buildings (IZIIS/CGS, 1993) takes into account the following stages: 1 - Data collection. 2 - Definition of the seismic hazard. 3 - Choice of the soil accelerations at the bedrock.

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