近年來，地球暖化與氣候變遷為人類帶來了威脅與挑戰，綠建築的發展便成為現代城市發展的重要趨勢，以可持續性為基礎，注重節能和環境保護來降低能源消耗和汙染排放。木材是唯一符合綠建築的建材，其材料特性可以降低建築物在生產過程中的碳足跡，減少對環境的負面影響。在木結構建築裡，木材具有脆性破壞的特性，在發生劈裂後，導致整體結構性能失效。透過發展鋼木合成結構，由木材則提供低碳環保的優點；鋼材提供構件主要強度及耐震性能，確保整體結構之永續性及穩定性，因此本研究將探討鋼木合成結構於構件的應用，一般於鋼結構的設計中，時常需擴大斷面增加材料的使用，以符合結實性原則並防止挫屈發生，導致構件效能降低且成本增加，使用木材進行包覆之方式，將能有效提升鋼板之面外束制，降低挫屈發生，且木材在厚度達一定程度時具有防火時效的功能，使內部鋼梁避免遇熱軟化，並取代傳統防火披覆材料。本研究針對鋼木合成梁桿件，使用鋼梁元件、圍束木材元件及接合零件做設計，進行一系列試驗研究，透過試驗不同圍束木材尺寸、螺桿與螺絲釘間距差異及接合材料的種類，探討在不同圍束模式及束制方式下，梁桿件的抗彎行為。試驗結果顯示，經過適當的圍束木材元件設計及接合零件的配置，能有效結合鋼材與木材形成合成結構，達到圍束鋼梁的效果，使鋼木合成梁桿件擁有良好的抗彎性能。此外，本研究亦使用有限元素分析建置模型，模擬鋼木合成梁桿件的構件行為，觀察試驗中鋼材與木材應力分布，並探討試驗後的變形情況，最後將本研究設計之鋼木合成梁桿件，初步探討其運用於梁柱接頭的設計，期望此研究能先奠定基礎，未來發展可靠的鋼木合成結構耐震梁柱接頭。

In recent years, global warming and climate change have brought threats and challenges to human beings. To face these problems, the development of green buildings has become an important trend in the development of modern cities. Based on sustainability, energy conservation and environmental protection, reducing energy consumption and pollution emissions are emphasized in the process. Wood is the only building material that meets the requirements of green buildings, for its material properties can decrease carbon footprints of buildings during production and reduce the negative impact on the environment. In wood structure buildings, wood has the characteristics of being brittle material, which leads to the failure of the overall structural performance after splitting. Through the development of steel-wood composite structures, with wood providing the advantages of low-carbon, environmental protection and steel providing the main strength and seismic performance of components, sustainability and stability of the overall structure can be ensured. Therefore, this study will explore the application of steel-wood composite structures in components. Generally, in the design of steel structures, it is often necessary to expand the cross-section and increase the use of materials to comply with the principle of solidity and to prevent buckling, resulting in reduced component performances and increased costs. Using wood for cladding will effectively avoid out-of-plane rotation of the steel plate, reducing the chance of buckling. When the thickness of the wood reaches a certain level, it has the function of fire resistance, so that the internal steel beams can avoid softening when exposed to heat, which is excellent for replacing traditional fireproof cladding materials. In this study, steel-wood composite beam members were designed using steel beam elements, confined wood elements and joint parts. By testing different confined timber dimensions, differences in spacing between bolts and screws, and types of joint materials in order to discuss the bending behavior of beam members under different confinement modes and methods. The experimental results show that with proper design of the confined timber components and configuration of joint parts, steel and wood can be effectively combined to form a composite material, giving steel-wood composite beams an outstanding bending performance. In addition, to simulate the behavior of steel-wood composite beam members, this study also uses finite element modeling to help observe the stress distribution of steel and wood during the test, and discuss the deformation after the test. Finally, the designs of steel-wood composite beam members in this study are used to preliminarily discuss the seismic behavior design of beam-to-column connection. It is hoped that this research will be the foundation for the development of steel-wood composite structure seismic beam-to-column connection in the future.

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