| 研究生: |
朱宗信 Chu, Chung-hsin |
|---|---|
| 論文名稱: |
化學黏著錨栓承受拉力與剪力作用之試驗研究 An Experimental Study on Tension and Shear Behaviors of Chemical Adhesive Anchors |
| 指導教授: |
邱耀正
Chiou, Yaw-Jeng, |
| 學位類別: |
碩士 Master |
| 系所名稱: |
工學院 - 土木工程學系碩士在職專班 Department of Civil Engineering (on the job class) |
| 論文出版年: | 2008 |
| 畢業學年度: | 96 |
| 語文別: | 中文 |
| 論文頁數: | 186 |
| 中文關鍵詞: | 混凝土 、化學錨拴 |
| 外文關鍵詞: | chemical adhesive anchors, concrete |
| 相關次數: | 點閱:149 下載:3 |
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本研究主要是對化學黏著錨拴進行受拉力與剪力作用之試驗研究。本文共進行288根化學黏著錨栓試驗,實驗參數主要有混凝土強度(140kgf/cm2 、 210kgf/cm2 、280kgf/cm2)、埋設深度(12.5cm、18cm)、距離試體邊緣(10cm、20cm)及不同受力方式(單純受拉、受剪及兩者同時作用)。實驗結果顯示邊距對化學錨栓抗拉、抗剪強度影響很大,如果邊距太小,會導致混凝土先破裂,無法發揮預期強度。由實驗試驗結果也可得知,埋設邊距大於15cm則抗拉力強度不受邊距影響。本實驗結果也發現混凝土強度愈大,化學錨栓強度愈強。由本實驗結果發現化學錨栓埋設深度愈深,則抗拉強度愈強。然而埋設深度若不足12.5cm,則無法達到預期抗拉強度,對設計與施工抗拉力強度影響極大。本實驗也發現錨栓要達到拉力極限強度發生斷裂破壞,必須是混凝土強度夠強、埋設深度夠深。根據實驗結果,本研究提出化學黏著錨拴之抗拉與抗剪經驗公式,供未來工程界做化學錨拴設計參考。
This study investigates the behaviors of chemical adhesive anchors under combined tension and shear forces. The 288 chemical adhesive anchors are tested in this study. The experimental parameters mainly include the concrete strength (140kgf/cm2, 210 kgf/cm2, and 280 kgf/cm2), the burying depth of anchors (12.5cm and 18cm), the distance from the edge of model (10cm and 20cm), and different kinds of force (pure tension、pure shear and combination of both). The experimental results show the distance from edge affects the anti-tension, anti-shear strength of anchors very much. If the distance is too short, the concrete would break and it’s unable to display the anticipated strength. The results also show the distance from edge affects nothing if the distance is longer than 15cm. This result of experiment find the stronger the concrete is, the bigger the strength of chemical adhesive anchors are According to the results, the burying depth of anchors is proportion to the anti-tension strength. However, if the burying depth of anchors is less than 12.5cm, it is unable to achieve the anticipated anti-tension strength, and it has a great effect on the design and anti-tension strength. This study also finds the anchors wouldn’t up to the ultimate anti-tension strength and break unless the concrete strength is big enough and the burying depth of anchors is deep enough. According to the results, the experienced formula of anti-tension and anti-shear of chemical adhesive anchors is also proposed in this study.
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