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首页> 外文会议>7th World Conference on Timber Engineering, WCTE 2002 Vol.3, Aug 12-15, 2002, Shah Alam, Malaysia >SIMULATION ANALYSIS FOR DIFFERENT COLUMN CONFIGURATION EXPOSED TO FIRE
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SIMULATION ANALYSIS FOR DIFFERENT COLUMN CONFIGURATION EXPOSED TO FIRE

机译：火灾中不同柱构型的仿真分析

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摘要

In a building design, one of the designer's tasks is to obtain a suitable type, shape and size of column for their structural elements. However, in many cases the column should also be designed to withstand the load at elevated temperature. There are wide ranges of parameters to consider for wood columns to withstand the load at an elevated temperature. This paper discusses the effect of different boundary conditions, and configurations on temperature history, the fire resistance for wood column and charring area on the performance of wood columns. The selected cross sectional areas for all configurations are fixed at 361 cm~2. The applied load (1380 kN) for temperature history and fire resistance analysis is taken about half of the stress of Malaysian Keruing timber multiplied by the above cross-section. However, when analyzing the charring area, the load is taken smaller than the above mentioned to prolong the failure time and see the effect of fire in formulating the amount of char generated. The failure time is also calculated at that particular load level (667 kN). A performance comparison among different column configurations (circular, square, rectangular, hexagonal, octagonal and I-cross section) has been carried out in this study. It was found from the simulation results that the best cross section capable to sustain fire is the circular cross section column.
机译：在建筑设计中，设计师的任务之一是获取适合其结构元素的圆柱的类型，形状和大小。但是，在许多情况下，色谱柱也应设计成能承受高温下的载荷。对于木柱来说，要承受高温下的载荷，需要考虑很多参数。本文讨论了不同的边界条件和配置对温度历史，木柱的耐火性和炭化区域对木柱性能的影响。所有配置的选定横截面面积固定在361 cm〜2。温度历史和耐火性分析所施加的负载（1380 kN）大约是马来西亚Keruing木材应力的一半乘以上述横截面。但是，在分析炭化区域时，要使负荷小于上述负荷，以延长故障时间，并在配制炭量时看到火的影响。在该特定负载水平（667 kN）下也会计算出故障时间。在这项研究中，进行了不同柱配置（圆形，正方形，矩形，六边形，八边形和I形截面）之间的性能比较。从模拟结果中发现，能够承受火灾的最佳横截面是圆形横截面圆柱。

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