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標題: | 鋼筋混凝土耦合牆系統之設計與案例探討 Design of Reinforced Concrete Coupled Wall System and Case Study |
作者: | 王能仁 Neng-Ren Wang |
指導教授: | 黃世建 Shyh-Jiann Hwang |
關鍵字: | 鋼筋混凝土,耐震設計,特殊抗彎矩構架系統,二元系統,耦合牆系統,剪力牆,連接梁,剪力破壞,軟化壓拉桿模型, reinforced concrete,seismic design,special moment resisting frame,dual system,coupled wall systems,shear wall,coupling beams,shear failure,softened strut-and-tie model, |
出版年 : | 2023 |
學位: | 碩士 |
摘要: | 台灣地狹人稠,中高樓層建築需求日益增加,目前業界對於建築內部配置隔間牆與隔戶牆等非結構牆體,並不會加以設計,僅考量其所造成的載重。然而由於此類桿件擁有高勁度,受到地震力時,反而成為耐震的第一道防線,形成非結構桿件保護結構桿件,與設計理念相違背的情形。故若能設計具有高勁度的鋼筋混凝土二元系統之剪力牆,將更能掌握系統整體受力行為,同時合理地降低柱構件尺寸。並且由於牆的開窗、門需求,往往使水平牆段形成連接梁,對於這類耦合牆系統並無詳盡的設計流程,因此本研究試提出相關設計流程,並建立六種不同模型,以驗證建議流程之可行性並加以比較。
本研究針對連接梁與剪力牆提出設計建議,對連接梁使其具有剪力容量設計,並提出混合配筋的概念,期更準確計算強度及需求,有效解決過往連接梁對角鋼筋量過大難以施工的問題。對剪力牆部分,將軟化壓拉桿考量邊界構材及腹板鋼筋提供的強度,加以應用設計,提出合理設計流程,以確保剪力容量設計使避免發生剪力破壞。並針對特殊水平鋼筋加以著墨,量化其設計,使地震力能有效傳遞且具有足夠拉力與水平分力進行平衡,避免幾何不連續面的破壞。 Taiwan is a densely populated island with limited space, leading to an increasing demand for high-rise buildings. Currently, the industry commouly uses SMRF system and does not consider the design of non-structural walls such as partition walls and separating walls within buildings. Only the weight of the non-structural wall is taken into account. However, these types of elements, which possess high stiffness, actually become the first line of defense against seismic forces. This contradicts the design philosophy of structural elements protecting the non-structural ones. Therefore, if a high-stiffness reinforced concrete dual system with shear walls could be used, it would better control the overall behavior of the system while effectively reducing the dimensions of column members. Additionally, due to the requirements for windows and doors in walls, the horizontal wall segments often act as coupling beams. There is currently no comprehensive design process for such coupled wall systems. Hence, this study proposes a relevant design process and establishes six different models to verify the feasibility and to make comparisons. This study presents design recommendations for the coupling beams and shear walls. For coupling beams, suggestions are provided to design them for shear capacity, along with the concept of hybrid reinforcement to accurately calculate strength and demand. This effectively solves the problem of excessive diagonal reinforcement in coupling beams, which makes construction difficult. For shear walls, the strength provided by boundary members and web reinforcement is taken into account when considering the Softened Strut and Tie model. A reasonable design process is proposed to ensure shear capacity design and prevent shear failure. Special attention is given to horizontal reinforcement to ensure effective transmission of seismic forces and provide sufficient tension and horizontal forces for balance, thereby avoiding the failure of geometric discontinuity surfaces. |
URI: | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/88946 |
DOI: | 10.6342/NTU202302279 |
全文授權: | 同意授權(全球公開) |
顯示於系所單位: | 土木工程學系 |
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