Earticle

초록

영어

This paper presents an evaluation of the tensile strength of an expansion anchor whose anchorage design can cause a fracture on concrete. Tests of heavy-duty anchors and wedge anchors, domestically manufactured and installed in a plain concrete member, were conducted to test the effects of embedment depth and edge distance. A design of post-installed steel anchors termed as the Concrete Capacity Design (CCD) approach, is presented. This approach is compared to the well-known provision, ACI 349-90. The two methods are compared in terms of their effectiveness in predicting the concrete fracture load of an expansion anchor in plain concrete under static loading for important applications. In this study, the concrete tension capacity of fastenings with heavy-duty anchors and wedge anchors in plain concrete predicted by ACI 349-90 and the CCD method were compared with the results of the tests. Based on the results of the experiments, for the CCD method, a normalization coefficient of 10.5 is appropriate for the nominal concrete breakout strength of an anchor or group of anchors in tension.

목차

Abstract
1. INTRODUCTION1
2. REVIEW of DESIGN CODES
2.1 Fracture strength of anchor
2.2 Concrete cone breakout strength
3. EXPERIMENTAL PROGRAM
3.1 Testing plan
3.2 Testing method
4. EXPERIMENTAL RESULTS
4.1 Material property of concrete
4.2 Concrete cone fracture strength
4.3 Cone fracture angle
5. CONCLUSIONS
REFERENCES

저자

• Seo, Seong-Yeon [ Dept. of Architectural Engineering, Halla University, Professor ] Corresponding Author

참고문헌