Evaluation of Existing Reinforced Concrete Columns

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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 ...

Get price

(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

Get price

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

Get price

ASCE-41 Evaluation of a Reinforced-Concrete Building ...

Engineering: Benchmarking of Existing Building Evaluation Methodologies. Any opinion, findings, and conclusions or recommendations expressed in this material are those of the authors alone and preliminary in nature. [1] Elwood, K. J. (2004). Modelling failures in existing reinforced concrete columns. Canadian Journal of Civil Engineering, 31 ...

Get price

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.

Get price

(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 ...

Get price

Seismic Evaluation of Existing Reinforced Concrete ...

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 severe damage or collapse of the building.

Get price

(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 /

Get price

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

Get price

ASCE-41 Evaluation of a Reinforced-Concrete Building ...

Engineering: Benchmarking of Existing Building Evaluation Methodologies. Any opinion, findings, and conclusions or recommendations expressed in this material are those of the authors alone and preliminary in nature. [1] Elwood, K. J. (2004). Modelling failures in existing reinforced concrete columns. Canadian Journal of Civil Engineering, 31 ...

Get price

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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Model development and seismic performance evaluation of ...

Numerous existing building structures around the world were constructed without seismic provisions. Reinforced concrete columns in these buildings feature shortcomings (e.g., shorter lap splices, splices located in the plastic hinge zone, and minimal confinement) which increase their seismic vulnerabilities.

Get price

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-

Get price

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

Get price

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.

Get price

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.

Get price

BEHAVIOR EVALUATION FOR REINFORCED CONCRETE

56 Z. Xu et al. Behavior Evaluation for Reinforced Concrete Columns... The length of plastic hinge recommended by Priestley (1996) can be calculated as following:, (17) where L – Column height, m; f y – yield strength of longi- tudinal reinforcement, MPa; d s – diameter of longitudinal reinforcement, m.

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Seismic Capacity Evaluation of Existing Reinforced ...

columns and adding new reinforced concrete walls. 4) The new reinforced concrete walls added at X3-4 of YC, YD-frame and the corner of the floor were placed on each floor of the building and those added at X3-4 of YB-frame were placed on the 1st to 4th floor. 5) The columns

Get price

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.

Get price

(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 ...

Get price

Seismic Evaluation of Existing Reinforced Concrete ...

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 severe damage or collapse of the building.

Get price

(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 /

Get price

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

Get price

ASCE-41 Evaluation of a Reinforced-Concrete Building ...

Engineering: Benchmarking of Existing Building Evaluation Methodologies. Any opinion, findings, and conclusions or recommendations expressed in this material are those of the authors alone and preliminary in nature. [1] Elwood, K. J. (2004). Modelling failures in existing reinforced concrete columns. Canadian Journal of Civil Engineering, 31 ...

Get price

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 ...

Get price

Model development and seismic performance evaluation of ...

Numerous existing building structures around the world were constructed without seismic provisions. Reinforced concrete columns in these buildings feature shortcomings (e.g., shorter lap splices, splices located in the plastic hinge zone, and minimal confinement) which increase their seismic vulnerabilities.

Get price

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-

Get price

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

Get price

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.

Get price

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.

Get price

BEHAVIOR EVALUATION FOR REINFORCED CONCRETE

56 Z. Xu et al. Behavior Evaluation for Reinforced Concrete Columns... The length of plastic hinge recommended by Priestley (1996) can be calculated as following:, (17) where L – Column height, m; f y – yield strength of longi- tudinal reinforcement, MPa; d s – diameter of longitudinal reinforcement, m.

Get price

Seismic Capacity Evaluation of Existing Reinforced ...

columns and adding new reinforced concrete walls. 4) The new reinforced concrete walls added at X3-4 of YC, YD-frame and the corner of the floor were placed on each floor of the building and those added at X3-4 of YB-frame were placed on the 1st to 4th floor. 5) The columns

Get price
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