框組式木構造區劃牆耐火性能驗證研究

木構造建築物符合我國永續發展的綠營建政策，唯我國對於木構造建築物防火性能之研究尚屬起步階段，為落實木構造技術之推動及防火避難安全之研究目的，本研究以框組式木構造區劃牆為研究對象，進行耐火性能驗證研究。實驗依據CNS12514「建築物構造部分耐火試驗法」及參考國外木構造工法，使用進口及台灣本土材料，採用「田口式直交表實驗法」進行實驗設計與分析，並進行全尺寸之耐火實驗，以探討框組式木構造區劃牆耐火因子與防火性能的關係性。實驗成果顯示覆蓋板材料與間柱斷面尺寸對阻熱性能有直接影響，且覆蓋板材料固定方式除釘長對於防火性能會有影響外，釘距減少亦能提升防火性能。研究結果顯示依據國外施工規範所組裝使用之國外及國產木材區劃牆的防火性能，皆可滿足建築技術規則一小時防火時效性能之規定。

關鍵字

框組壁工法；木構造；區劃牆；耐火性能

並列摘要

Wood structure buildings conform to the sustainable development as well as the green building policy in Taiwan. Nevertheless, the fire-resistant performance research of wood framing construction is still in the initial stage in Taiwan. With the objective of advancing the wood construction techniques, several fire resistance experiments were conducted with the considerations of fire prevention and egress routing. This study refers to the North America construction methods and adopts the imported and native materials in Taiwan to fabricate the specimens for experiments. The Taguchi orthogonal table method is applied for the design of experiments and analyses. Several full-scale experiments were carried out to explore the effects of factors regarding fire resistance performance according to the fire resistance test for structural parts of building stated in the CNS 12514. The experiments show that the covering board materials and the dimensions of studs directly affect the properties of thermal resistivity. With covering board material selected, the nail length does affect the fire resistance performance. It is found that by decreasing the nail spacing, the fire resistance performance exhibits improvement. The research results reveal that the wood-framed compartment wall specimens specified as above-mentioned sustain at least one hour fire rating performance according to the current Building Technique Regulations.