鋼筋混凝土二元系統之設計與案例探討

Design of Reinforced Concrete Dual System and Case Study

黃紹愷(Shao-Kai Huang)

指導教授 ： 黃世建

國立臺灣大學/工學院/土木工程學研究所/碩士(2022年)

https://doi.org/10.6342/NTU202201170

摘要

位處於菲律邊板塊與太平洋板塊交界處的台灣，地震發生頻繁，且因人口稠密，中高樓層建築需求與日俱增，並且為求住宅之防水性以及隔音性，常於建築內部配置隔間牆與隔戶牆等非結構牆體。此類構件擁有高勁度的特性，使其在受到地震力的作用下位處於結構耐震的第一防線，故若能以同時具有高勁度與高強度的鋼筋混凝土二元系統剪力牆取代其受力，將更能掌握系統整體受力行為，同時合理地降低梁、柱構件之尺寸。
本研究將軟化拉壓桿模型套入過去的剪力牆以及日本E-defense試驗，進行分析並藉此提出相關設計建議，並包含剪力牆體本身以及周遭集力構件之設計理念，藉由對二元系統傳力機制的分解，並針對傳力路徑上各桿件進行加強，以因應台灣新版規範土木401-110中納入剪力容量設計所提升的強度需求。接著建立兩結構分析模型，一為特殊抗彎矩構架系統，另一則為建議之二元系統，並以兩模型之分析及設計結果進行比較，盼解決抗彎矩構架中結構剛度較低以及各樓層構架受力不均等問題。

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 ； 剪力牆 ； 剪力破壞 ； 軟化壓拉桿模型

並列摘要

Taiwan is located at the junction of the Philippine Plate and the Pacific Plate. Earthquakes occur frequently, and due to the dense population, the demand for medium and high-rise buildings is increasing day by day. In order to achieve waterproof and sound insulation of residential buildings, partition walls are often built inside. Non-structural members such as partition walls have the characteristics of high stiffness, making them the first line of defense against earthquakes under the action of seismic forces. Therefore, dual system should be chosen instead, which can better grasp the overall force behavior of the system, and at the same time reasonably reduce the size of beams and columns.
In this study, the Softened Strut and Tie model was applied to the past shear wall tests and the Japanese E-defense test, came out with some analysis results and relevant design suggestions, including the design concept of the shear wall itself and the surrounding force-concentrating components, such as collectors. The force transfer mechanism of the dual system is decomposed, and each member on the force transmission path is strengthened to meet the increased strength requirements of the shear capacity design included in the new version of Taiwan's Civil Engineering Code 401-110. Next, two structural analysis models are built, one is a special moment-resisting frame system, and the other is a dual system proposed. The analysis and design results of the two models are compared. In order to solve the problems of low structural rigidity and uneven stress distribution of each floor in the moment-resistant frame.

並列關鍵字

reinforced concrete ； seismic design ； special moment resisting frame ； dual system ； shear wall ； shear failure ； softened strut-and-tie model

參考文獻

[1] 中國土木水利工程學會 (2021)，「混凝土工程設計規範與解說(土木401-110)」，台北。

[2] Weng, P. W., Li, Y. A., Tu, Y. S. and Hwang, S. J. (2017). “Prediction of the Lateral Load-Displacement Curves for Reinforced Concrete Squat Walls Failing in Shear.” Journal of Structural Engineering, ASCE, 143(10), 10.1061/(ASCE)ST.1943-541X. 0001872.

[3] Hwang, S. J., and Lee, H. J. (2002). “Strength Prediction for Discontinuity Regions by Softened Strut-and-Tie Model.” Journal of Structural Engineering, ASCE, 128(12), pp. 1519-1526.

[4] E-defense (2005)，「平成17年度，成果報告書」，国立研究開発法人防災科学技術研究所，兵庫縣，日本， 313-360頁。

[5] 中國土木水利工程學會 (2011)，「混凝土工程設計規範與解說(土木401-100)」，台北。