近年來，鋼木混合構件(Timber–Steel Composites, TSC)，在國外已有許多研究，它不僅能提供美觀，亦是一種環保永續的結構材料，為眾人所期待的新型式構造物。即使如此，在防火性能上仍然存在著疑慮。目前，我國內政部建研所僅針對一般集成材製定「木構造防火設計施工參考手冊」之防火設計參考，由於TSC係屬組裝型構材，因此，TSC如運用建研所提供之防火設計方法，難以確保實際使用上的安全性。

本研究延續了「鋼木組合梁之彈塑性靜曲行為及防火機制研究」的研究，參考ISO 834-1的升溫曲線進行一小時防火試驗。在第一項試驗中，試驗因子均與文獻設定相符，為使TSC構件的防火性能可有效提升，在集成材中添加阻燃藥劑進行測試，並進行有、無添加阻燃藥劑之試體的防火性能比較。由於國內目前尚未有TSC實尺寸的相關防火性能研究，因此得到第一項試驗結果後，進行第二項TSC實尺寸樑的防火試驗。藉試驗結果得知，阻燃加工確實能提升TSC的防火性能，但預留的炭化深度不足，組裝接合縫處有明顯延燒的情形，使TSC構件依然呈現不安全狀態，此外，由於實尺寸樑預留的炭化深度較深，在防火性能上表現較出色，但需特別注意接合縫隙處依然有延燒的情形，此結果顯示，TSC的弱點在接合處的縫隙，需特別留意。本研究之成果，建立了TSC之防火相關數據，提供設計人員運用不同材種的TSC，在防火設計上有可信度的參考。

In recent years, Timber - Steel composite materials (TSC) have been extensively studied abroad. Not only it provides a nice appearance, but it is also an environmentally friendly and sustainable structural material. It is the new structure that everyone is looking forward to. There are still concerns about fire performance. At present, Architecture and Building Research Institute of ministry of the interior Taiwan has only formulated the「Wooden Structure Fire Resistance Design Reference Manual for glue-laminated timber」. However, TSC series is derived from assembly materials. It is difficult to estimate the safety level of TSC regarding the fire resistance design provided by Architecture and Building Research Institute in actual.

This research continues「Flexural Behavior under Elastic and Plastic state and Fire Resistance Mechanism of Timber–Steel composite Beam.」refer to ISO 834-1 for fire curve to conduct a one-hour fire protection test. Firstly, the test factors are consistent with the setting in the literature. In order to effectively improve the fire resistance of TSC components, flame retardants are added to the glue-laminated thenfire resistance performance ared compared with the samples which are non-flame retardant. After the first test result is obtained, the second fire resistance test of TSC full-size beams is carried out. This step contributes a clearer scenery since there is no relevant fire resistance performance research of TSC full-size beams in Taiwan.

According to the test results, flame-retardant processing can indeed improve the fire resistance of TSC, but the reserved char depth is insufficient, the assembly joint shows obvious flame spread so that the TSC components are still in an unsafe condition. Besides, the reserved char depth of the full-size beam is relatively deep. The fire performance is excellent, but it is important to pay special attention to the fact that there is still flame spread at the joint gap. The weakness of TSC lies in the joint gap, which requires special attention. The results of this research have established TSC fire-related data, providing designers with a credible reference for TSC fire protection design.

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網路文獻
[W1] CreaTimber-WHY TIMBER
https://creatimber.com/why-timbers/#
[W2] SWEDISH-WOOD-Structural-elements https://www.swedishwood.com/building-with-wood/construction/wood-and-wood-based-products/structural-elements/
[W3] 國家林產技術平台
https://www.cwcba-wqac.org.tw/forest-tech/index.php
[W4] ARCWood
http://arcwood.ee/en/glulam
[W5] Setra - The Production of Glulam
https://www.setragroup.com/en/glulam/om-limtra/the-production-of-glulam/
[W6] CLAD global - Kengo Kuma-designed New National Stadium completed in Tokyo
https://www.cladglobal.com/CLADnews/architecture-design/Kengo-Kuma-designed-New-National-Stadium-completed-in-Tokyo/343844
[W7] Olympics TOKYO 2020
https://olympics.com/tokyo-2020/en/news/olympic-stadium-officially-opened