膨脹錨栓之耐震性能測試

The seismic performance test of expansion anchors

鄭皓澤(Hao-ze Zheng)

指導教授 ： 廖文義

國立臺北科技大學/工程學院/土木與防災研究所/碩士(2013年)

https://doi.org/10.6841/NTUT.2013.00177

摘要

後置式膨脹錨栓因施工方便、調整度高，藉由膨脹擴座產生錨定力以抵抗拉力，已廣泛被工程界應用於多種不同的非結構物與連著物之固定。為了探討國內常見後置式錨栓安裝於無裂縫與有裂縫混凝土基材之耐震性能，本研究依據ACI 355.2規範後置式錨栓測試相關規定，進行拉力與剪力反覆載重試驗，最後從結果比較在不同基材下的差異性。
試驗結果得知，有裂縫之混凝土對錨栓承載力影響甚大，極限承載力與彈性勁度比無裂縫之混凝土降低許多，破壞模式也有所不同。另一方面，比較各組試驗可知，經由反覆載重測試後所得之極限承載力與破壞試驗所得之極限承載力差距甚微。最後，本文以ACI 318規範附錄D之公式評估膨脹錨栓的承載力是否合適，或是該做出若干的修正，另外由ACI 318規範附錄D公式計算值與試驗值的差異也可看出各種設計參數是否恰當，希望能作為將來膨脹錨栓設計規範修訂之參考。

關鍵字

後置式膨脹錨栓 ； 非結構 ； 耐震性能

並列摘要

Post-installed expansion anchors haves been widely used for the installation of nonstructural components on reinforced concrete structures due to their convenient installation and adjustability. In order to discuss the seismic performance of the commonly used post-installed expansion anchors in Taiwan, this research conducted tension and shear cyclic loading tests according to ACI 355.2 to simulate the effects of seismic loading. Both cracked and uncracked concrete test members were used to discuss the effects of the cracks of the base material on the performance of post-installed anchors.
Based on the testing results, the values of ultimate strength and elastic stiffness of the post-installed anchor embedded in cracked concrete are much lower than the ones of the anchors embedded in uncracked concrete. The cracks of concrete members also affected the failure mechanism of post-installed anchors. On the other hand, the influence of the tension and shear cyclic loading tests on the ultimate strength of anchors is slightly. Finally, the adequacy of the values of design parameters in ACI 318 appendix D was discussed as well by the comparison of the evaluated strength values calculated from the test results and the code.

並列關鍵字

post-installed expansion anchor ； nonstructural ； seismic performance

參考文獻

[1] 黃喬俊，「消防撒水系統耐震問題研究」，國立成功大學建築研究所碩士論文，民國九十二年。

[3] T. S. Aziz , A. Ghobarah,《Seismic qualification testing of concrete expansion anchors to nuclear standards》, Transactions, SMiRT16, Washington D.C., August 2001.

[6] Werner Fuchs, Rolf Eligehausen, and John E. Breen, 《Concrete Capacity Design (CCD) Approach for Fastening Concrete》, ACI Structual Journal, 1995

[7] ACI Committee 355,《Qualification of Post-Installed Mechanical Anchors in Concrete and Commentary (ACI 355.2-07)》, American Concrete Institute, Detroit, 2007.

[8] 朱宗信，「化學黏著錨栓承受拉力與剪力作用之試驗研究」，國立成功大學土木工程研究所碩士論文，民國九十七年。