Download or read book Fire Resistance Evaluation of Reinforced Concrete Columns written by H. L. Zhu and published by . This book was released on 1993 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Evaluation of the Fire Resistance of Reinforced Concrete Columns with Rectangular Cross section written by Tiam Tjoan Lie and published by . This book was released on 1990 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Fire Resistance of Concrete Columns written by Walter Austin Hull and published by . This book was released on 1925 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Fire Resistance of Reinforced Concrete Columns Test Results written by Tiam Tjoan Lie and published by . This book was released on 1988 with total page 302 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Further Studies of the Fire Resistance of Reinforced Concrete Columns written by and published by . This book was released on 1964 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Evaluation of Fire Resistence of Plastering Applied to Reinforced Concrete written by Engy M. Samy Serag and published by . This book was released on 2003 with total page 362 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work presents results of an experimental investigation aimed at evaluating the fire resistance of reinforced concrete columns coated with variable thicknesses of materials that has potential for fire resistance.
Download or read book Fire Resistance of Reinforced Concrete Columns written by Abrams, M. S. (Melvin S.) and published by . This book was released on 1984 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Fire Resistance of Reinforced Concrete Columns written by and published by . This book was released on 1984 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book CALCULATIONS OF THE FIRE RESISTANCE OF REINFORCED CONCRETE COLUMNS written by T.T. LIE and published by . This book was released on 1972 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Fire Safety Science and Engineering written by T. Z. Harmathy and published by ASTM International. This book was released on 1985 with total page 443 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Fire Resistance of Reinforced Concrete Columns written by Allen, D. E. (David E.) and published by National Research Council Canada, Division of Building Research. This book was released on 1974 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Calculation of the Fire Resistance of Reinforced Concrete Columns written by T. T. Lie and published by National Research Council of Canada, Division of Building Research. This book was released on 1972 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Response of Reinforced Concrete Columns Under Temperature Induced Transient Creep Strain written by Saleh Mohammad Alogla and published by . This book was released on 2019 with total page 256 pages. Available in PDF, EPUB and Kindle. Book excerpt: Structural members experience significant creep deformations in later stages of fire exposure and are susceptible to failure due to temperature induced creep strains. Fire in a concrete structure can burn for several hours, and temperatures in concrete and reinforcing steel can exceed 500 °C. At such temperatures, high levels of creep strains can develop in concrete and steel, especially in reinforced concrete columns. However, temperature induced creep strains are not fully accounted for in evaluating fire resistance of concrete members even through advanced analysis, and there is a lack of data on high-temperature creep strains for specific types of concrete. To overcome current limitations, comprehensive experiments on evolution of transient creep strain are undertaken under various heating and loading regimes. Transient creep tests are conducted in the temperature range of 20 °C to 750 °C on four types of concrete; normal strength concrete, steel fiber reinforced concrete, high strength concrete, and high strength concrete with polypropylene fibers. The test variables include temperature, load level, rate of heating, strength of concrete and presence of fibers. Data from these tests indicate that transient creep strain constitutes a significant portion of the total strain developed during high-temperature exposure. Data also affirm that temperature range and stress level have significant influence on transient creep strain. However, rate of heating and presence of fibers have only a moderate influence on the extent of transient creep in concrete. Presence of steel fibers in normal strength concrete slightly reduce transient creep strain, while the presence of polypropylene fibers in high strength concrete leads to higher transient creep strain. Generated data from experiments is then utilized to propose temperature and stress dependent creep strain relations for concrete. These transient creep strain relations can be implemented in fire resistance evaluation of concrete members. To account for transient creep in undertaking fire resistance analysis of reinforced concrete (RC) columns, a three-dimensional finite element based numerical model is developed in ABAQUS. Temperature-induced creep strains in concrete and reinforcing steel are explicitly accounted for in this advanced analysis. The model also accounts for temperature induced degradation in concrete and reinforcing steel, and material and geometrical nonlinearities. The validity of the model is established by comparing fire response predictions generated from the model with measured response parameters in fire tests on RC columns. Results from the analysis clearly indicate that transient creep strain significantly influences the extent of deformations when the temperatures in concrete exceed 500 °C for stress level of 40% or more, and this in turn influences fire resistance of RC columns. The validated model is applied to assess the influence of transient creep on fire response of RC columns under different conditions, including different fire scenarios, load level, and number of exposed sides in a column. Results from the numerical studies clearly indicate that severe fire exposure induces higher creep strains in RC columns in much shorter duration than exposure to a standard building fire. Moreover, asymmetric thermal gradients resulting from two or three side fire exposure on a column, can increase transient creep effects and, thus, affect fire resistance. The extent of the developed transient creep in concrete columns under various scenarios of fire exposure is highly dependent on the type of concrete. Overall, results from the analysis infer that neglecting transient creep can lead to a lower prediction of deformations and, thus, overestimation of fire resistance in RC columns, particularly when subjected to severe fire exposure scenarios, with higher thermal gradients.
Download or read book Fire Resistance of Concrete filled and Reinforced Concrete Columns microform written by El-Shayeb, Mohamed and published by Ann Arbor, Mich. : University Microfilms International. This book was released on 1986 with total page 564 pages. Available in PDF, EPUB and Kindle. Book excerpt: In order to calculate the fire resistance of a building component, it is necessary to know the temperature history of the component during exposure to fire. In this dissertation a numerical method is described for calculating the temperature field in fire-exposed columns. The procedure is based on a finite difference method for calculating the temperature history of concrete-filled square steel and cylindrical reinforced concrete columns. Two mathematical models and their related computer programs for these columns are presented in this dissertation. Furthermore, the Division of Building Research of the National Research Council of Canada, is now carrying out extensive experimental studies on building columns. These studies include the testing of various columns under fire conditions. The data obtained from these tests will be used to determine the validity of the new models. In order to perform these tests the maximum allowable load must be known. Two mathematical models and their related computer programs to calculate the maximum allowable load of various column cross-sections are also presented in this dissertation.
Download or read book Fire Resistance of Reinforced Concrete Columns written by H. J. Wu and published by . This book was released on 1992 with total page 55 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Fire Resistance of Reinforced Concrete Columns written by Tiam Tjoan Lie and published by . This book was released on 1989 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Further Studies of the Fire Resistance of Reinforced Concrete Columns written by Allen, D. E. (David E.) and published by National Research Council Canada, Division of Building Research. This book was released on 1974 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt:
