研究生: |
劉張仕杰 Shih-Chieh Liu Zhang |
---|---|
論文名稱: |
支承於CFT柱無梁版之貫穿剪力強度 Punching Shear Strength of Flat Slabs Supported by CFT Columns |
指導教授: |
陳正誠
Cheng-Cheng Chen |
口試委員: |
鄭敏元
Min-Yuan Cheng 邱建國 Chien-Kuo Chiu 蕭博謙 Po-Chen Hsiao |
學位類別: |
碩士 Master |
系所名稱: |
工程學院 - 營建工程系 Department of Civil and Construction Engineering |
論文出版年: | 2019 |
畢業學年度: | 107 |
語文別: | 中文 |
論文頁數: | 116 |
中文關鍵詞: | 內填充型混凝土柱 、無梁版 、貫穿剪力 、複合結構 、CFT柱-版 |
外文關鍵詞: | concrete filled tube, slab, punching shear, composite structure, CFT column-slab |
相關次數: | 點閱:293 下載:14 |
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CFT 柱與RC 版間因兩者材料的差異,對於複合式版柱之貫穿剪力強度的
計算方式並不明確。本研究之目的為CFT 柱-版之貫穿剪力強度及如何有效提
升其強度。本研究共提出3 種加強構件,配置於相同斷面之鋼管周圍用以提升
CFT 柱-版的貫穿剪力強度。其一,以鋼條板進行加強;其二,以角鋼所構成如
同柱冠的加強構件進行加強;其三,以槽鋼所構成如同隱藏式柱頭版的加強構
件進行加強。本研究共完成6 座版柱試體之載重試驗,根據試驗結果可得到下
列結論與建議:
實驗結果顯示:(1) CFT 柱-版的貫穿剪力強度大於相同柱斷面之RC 柱-
版。(2) 本研究提出3 種加強構件皆能有效提升CFT 柱-版貫穿剪力強度。(3)
依照建議對於版承載面合理的假設,以規範公式可以保守的評估CFT 柱-版、
以及配置加強構件之CFT 柱-版的貫穿剪力強度。(4) CFT 柱-版之鋼管與版的剪
力摩擦係數大於0.6。
The calculation of the punching shear strength of the CFT column-slab is not
clear due to the difference in material. The purpose of this study is to get the punching
shear strength of the CFT column-slab and how to effectively increase its strength. In
this study, three kinds of reinforcing members were proposed, which were arranged
around the tube of the same section to improve the punching shear strength of the
CFT column-slab. (a) It is reinforced with steel plate; (b) It is reinforced with which
made of angle steel and stiffener like column capital; (c) It is reinforced with which
made of channel steel and stiffener like invisible drop panel. In this study, the load test
of the six column-slab specimens was completed. According to the test results, the
following conclusions and recommendations can be obtained:
The experimental results show that: (1) The punching shear strength of the CFT
column-slab is greater than the RC column- slab in the same column section. (2) This
study proposes that all three kinds of reinforcing members can effectively improve the
CFT column-slab punching shear strength. (3) According to the recommendations for
the reasonable assumption of the bearing area, the CFT column-slab and which
arranged the reinforcing member can be evaluated conservatively by the formula of
code. (4) The coefficient of shear friction between the CFT tube and slab is greater
than 0.6.
[1] ACI Committee 318, 2014,”Building Code Requirements for Structural Concrete (ACI 318-14) and Commentary (ACI 318R-14),”Farmington Hills (MI):American Concrete Institute, 2014.
[2] Thai X. Dam, James K. Wight, and Gustavo J. Parra-Montesinos. (2017, January-February). Behavior of Monotonically Loaded Slab-Column. ACI Structural Journal, pp. 222-232.
[3] Wight, J. K., Reinforced Concrete: Mechanics and Design, seventh edition, Prentice Hall, 2015, 1168 pp.
[4] Dam, T. X., and Wight, J. K., “Flexurally-Triggered Punching Shear Failure of Reinforced Concrete Slab-Column Connections Reinforced with Headed Shear Studs Arranged in Orthogonal and Radial Layout,” Engineering Structures, V. 110, 2016, pp. 258-268. doi: 10.1016/j.engstruct.2015.11.050
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[7] 陳正誠、沈晏州,2019,「填充型鋼管柱內鋼板檢力連結物之行為與強度評估」,碩士論文(陳正誠教授指導),國立台灣科技大學。
[8] 內政部營建署,「混凝土結構設計規範」,2011。