Simplified Calculation of Ultimate Bearing Capacity of Four-Face Heated Reinforced Concrete Columns
Currently, the determination of the fire resistance of concrete columns is essentially based on tabulated containing the dimensions oftbe cross section and values of the concrete cover or finite element analysis method, which is unsatisfied the engineers for a quick and efficient design. A simplified method for calculating the ultimate load bearing capacity of four-face heated reinforced concrete columns is presented in this paper, which referenced foreign latest contributions. With this method, we need neither to analysis the temperature field of the section in advance nor query any tabulate, and just consider the influence parameter in the design formulas directly. The accuracy of the method is verified through a set of experimental test results comprising 39 columns. The method yields reasonably accurate predictions for the fire resistance of RC columns. In addition, the paper includes a worked example to illustrate the use of the formula. This method can be used by engineers due to its simplicity, practicality and can be associated with the current code.
fire reinforced concrete column ultimate bearing capacity
YANG Shujiang XU Zhisheng LI Yaozhuang
Institute of Disaster Prevention Science and Safety Technology,Central South University,Changsha,410 Institute of Disaster Prevention Science and Safety Technology,Central South University,Changsha,410
国际会议
The 2008 International Symposium on Safety Science and Technology(2008年安全科学技术国际会议)
北京
英文
1847-1852
2008-09-24（万方平台首次上网日期，不代表论文的发表时间）