浮動式輕型鋼桁架房屋之研究

Studies on Floating Houses Using Cold-form Steel Truss Structures

王峙蓉(Jhih-Rong Wang)

指導教授 ： 尹世洵

國立臺北科技大學/工程學院/土木與防災研究所/碩士(2014年)

https://doi.org/10.6841/NTUT.2014.00466

摘要

台灣所在之地理環境長期受到天災之影響，導致淹水問題日趨嚴重。目前易淹水地區所使用之房屋設計，並無法有效解決房屋內部浸水問題。針對此問題，國內目前的解決策略大多為靜態形式之高腳屋或墊高屋。而國外提供了較新穎的浮動式房屋(floating house)。
　　本研究之浮動式房屋結構設計採用輕型鋼桁架系統結合鋼箱結構，並在房屋周圍設置引導房屋上下移動之柱子，當洪水來臨時，利用洪水的浮力讓房屋沿著周圍柱子往上浮起，當洪水退去時，沿著周圍柱子下降至地面。由於房屋具有上浮的功能，所以無法直接固定於地面，因此藉由橡膠支承墊傳遞垂直載重及具有隔震的功能。本文將針對鋼箱結構、輕型鋼桁架結構、鋼箱與基礎相連之支承墊與引導房屋上浮之導柱結構，提出適當的設計想法與分析模型，並考量各種載重作用情況，利用有限元素分析軟體(MSC Patran)進行分析，檢討此設計想法之可行性。

關鍵字

浮動式房屋 ； 結構設計 ； 輕量化結構

並列摘要

Because natural disasters such as typhoons often occur in geographical regions where Taiwan is located, people in Taiwan suffered from serious floods. The current house design in lower inhabitable areas cannot prevent water entry. For designing a house which holds the flood-proof capability, domestic design strategies such house on stilts usually raise the lowest inhabitable level above base flood elevation. Also, there is a novel house design called floating houses proposed in foreign countries.
　　In this study, we proposed our floating house design. The house was composed of steel box substructure and lightweight cold-form steel truss superstructure. Several columns were built up around the house, which can guide house move up and down through a ring system connected to the house. The house can float up along the columns due to buoyancy when flood waters invade and return back to the original location of the base when flood waters recede. Since the house has such a floating mechanism, it cannot be fixed to ground directly. Rubber Bearings were needed to pass vertical loadings and have the function of base isolation. This paper presented the design concepts and analysis models of the steel box substructure, the lightweight cold-form steel truss superstructure, the bearings connecting substructure and foundation, and the columns confining the movement of the floating house. Furthermore, we consider a variety of loading conditions and their combinations, and analyze and design the floating house using finite element analysis software (MSC Patran). Finally, the feasibility of the proposed floating house design was investigated.

並列關鍵字

Floating House ； Structural Design ； Lightweight Structure

參考文獻

23. 經濟部水利署水利緊急應變經驗學習中心，水災事件，2014。

32. 張國鎮，吳秉憲，劉光晏，橋樑功能性支承系統參數之研究-橡膠支承墊力學行為與摩擦係數之測定，國家地震工程研究中心，2004。

33. 連福橡膠製品股份有限公司。

35. 陳科維，頂端附帶一集結質量之楔形樑在水中的自由震動分析，國立成功大學造船及船舶機械工程研究所碩士論文，2002。

2. 行政院莫拉克颱風災後重建推動委員會，莫拉克風災災後重建現況與展望，