In this study, refined finite element models of concrete filled steel tubular long columns with
length diameter ratio (L/D) of 50 were established, and their dynamic responses under a
rigid-body impact were explored. It is found that the form of impact load is only related to
and can be predicted from the impact velocity of the rigid-body. The change of axial stress
and strain with time is synchronous with that of the impact load. Furthermore, the variation
characteristics of axial stress and strain with time are mainly related to the initial velocity
of the rigid-body.
REFERENCES(13)
1.
Aghdamy S., Thambiratnam D.P., Dhanasekar M., Saiedi S., 2015, Computer analysis of impact behavior of concrete filled steel tube columns, Advances in Engineering Software, 89, 52-63.
Guo Z.H., 2004, Strength and Constitutive Relation of Concrete: Principle and Application (in Chinese), Beijing, China Architecture and Building Press.
Li Z., Li B.C., Li Y.G., 2006, The research of the dynamic property of steel tube-confined concreto short column under axial impact (in Chinese), Journal of Taiyuan University of Technology, 4, 4-6.
Liu H.L., Ding X.M., 2007, Analytical solution of dynamic response of cast-in-situ concrete thin-wall pipe piles under transient concentrated load with low strain (in Chinese), Chinese Journal of Geotechnical Engineering,11, 20-26.
Liu H.L., Ding X.M., 2008, Propagation characteristics of transient waves in low strain integrity tests on cast-in-situ concrete thin-wall pipe piles (in Chinese), Chinese Journal of Geotechnical Engineering, 3, 111-116.
Mirmomeni M., Heidarpour A., Zhao X.L., Al-Mahaidi R., Packer J.A., 2017, Size-dependency of concrete-filled steel tubes subject to impact loading, International Journal of Impact Engineering, 100, 90-101.
Wang W.Q., Wu C.Q., Li J., Liu Z., Lv Y., 2019, Behavior of ultra-high performance fiber-reinforced concrete (UHPFRC) filled steel tubular members under lateral impact loading, International Journal of Impact Engineering, 132, 1-24.
Zhang C., Xu X.Q., 2009, Test research of concrete-filled steel tube column under axial impact load (in Chinese), Journal of Nantong University (Natural Science Edition), 4, 59-63.
We process personal data collected when visiting the website. The function of obtaining information about users and their behavior is carried out by voluntarily entered information in forms and saving cookies in end devices. Data, including cookies, are used to provide services, improve the user experience and to analyze the traffic in accordance with the Privacy policy. Data are also collected and processed by Google Analytics tool (more).
You can change cookies settings in your browser. Restricted use of cookies in the browser configuration may affect some functionalities of the website.