鋼骨鋼筋輕質混凝土構件耐震行為

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陳信成(Shin-Cheng Chen) 查詢紙本館藏

畢業系所

土木工程學系

論文名稱

鋼骨鋼筋輕質混凝土構件耐震行為
(Seismic behavior of lightweight steel reinforced concrete columns)

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摘要(中)

本研究針對14根應用輕質骨材之鋼骨鋼筋混凝土構材承受撓曲、軸力與單向撓曲聯合作用，及軸力與反覆側向力聯合作用時之承載行為，進行一系列的實驗研究，針對骨材單位重、圍束形式、鋼骨比和軸力比之改變，對構材極限強度、韌性、破壞型式與消能能力等行為之影響，進行探討，並與文獻[26]之相同參數常重混凝土SRC構件行為進行比較。研究顯示，以適當的鋼骨量與圍束型式下，對輕質混凝土複合構件可達與常重混能土構件相當之韌性，而在輕質混凝土SRC構件中，改善圍束型式和提高鋼骨量都能有效的提高構件的韌性行為，且鋼骨量的提升使輕質混凝土複合構件之勁度衰減趨於緩和，但以較佳圍束型式對輕質混凝土複合構件之勁度衰減沒有明顯效果。

摘要(英)

This study is focused on the experimental investigation of seismic performance of steel reinforced concrete columns (SRC) composed of lightweight aggregate concrete. Specimens with various reinforcement placements were tested under bending and different combinations of bending and axial loads. Test results show that the inelastic behavior of lightweight aggregate concrete SRC members is governed by the steel ratio and the volumetric ratio of the confinements. It is also confirmed from the comparison on energy dissipation capacity that the ductility of lightweight aggregate concrete SRC members with adequate confinements stays at the equivalent level as that of normal weight concrete SRC, which justifies the applicability of lightweight aggregate concrete SRC to engineering practices.

關鍵字(中)

★ 鋼骨鋼筋混凝土
★ 輕質混凝土

關鍵字(英)

★ lightweight aggregate concrete
★ steel reinforced concrete

論文目次

目錄........................................I
表目錄......................................IV
圖目錄.......................................V
照片目錄...................................VIII
第一章緒論.................................1
1-1 前言 ...................................1
1-2 研究動機與目的............2
1-3 研究方法與內容............2
第二章文獻回顧............4
2-1 國內外相關研究............4
2-1-1 輕質骨材混凝土之應力－應變關係...........4
2-1-2 輕質骨材鋼筋混凝土構件之相關研究.........4
2-1-3 鋼骨鋼筋混凝土相關研究............5
2-1-4 核心混凝土圍束之相關研究............6
第三章理論強度計算............8
3-1 美國ACI 規範相關規定[13]............8
3-2 美國AISC－LRFD 規範相關規定[14]...........9
3-3 日本AIJ-SRC相關規定[15]............11
3-4 國內「鋼骨鋼筋混凝土構造 (SRC) 設計規範與解說」............16
第四章實驗規劃與試驗方法及流程............18
4-1 試驗規劃與參數............18
4-1-1 試驗規劃............18
4-1-2 試驗參數與試體編號............19
4-2 試體製作............19
4-3 試驗設備............20
4-4 試驗方法與流程............21
第五章實驗觀察及破壞模式............23
5-1 實驗觀察............23
5-1-1 承受單向側向力之試體............23
5-1-2 承受反覆側向力之試體............24
5-1-3 承受軸力0.2Pn及單向側向力之試體.........26
5-1-4 承受軸力0.2Pn及反覆側向力之試體.........27
5-1-5 承受軸力0.35Pn及反覆側向力之試體........31
5-2 破壞模式..........34
5-2-1 加載型式之影響............34
5-2-2 圍束型式之影響............34
5-2-3 鋼骨量之影響............35
5-2-4 軸力之影響............36
第六章實驗結果分析比較............38
6-1 構件極限強度與規範值比較............38
6-1-1 實驗值與ACI規範比較............38
6-1-2 實驗值與AIJ規範比較............38
6-2 勁度............39
6-2-1彎矩與曲率關係............39
6-2-2 位移勁度............40
6-3 韌性 ............42
6-3-1 位移比............42
6-3-2 能量韌性指標............44
第七章結論與建議............46
7-1 結論 ............46
7-2 建議............47
參考文獻............48
附表........................................51
附圖........................................57
照片........................................63

參考文獻

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[26]許協隆、陳景仁﹐“高強度鋼骨鋼筋混凝土含鋼量與耐震行為研究”﹐國立中央大學土木工程研究所﹐碩士論文﹐九十年六月。
[27]顏聰﹐“台灣區水庫淤泥化性調查及輕質骨材製成技術研究”﹐水庫淤泥輕質骨材混凝土產製及應用研討會論文集﹐九十二年十二月﹐pp.3-30台北﹐台灣。

指導教授

許協隆(H. L. Hsu)

審核日期

2004-7-16

推文