[1] Qian Shunzhi,. Fracture suppression at steel/concrete connection zones by ECC [J]. Journal of Southeast University (English Edition), 2012, 28 (2): 190-194. [doi:10.3969/j.issn.1003-7985.2012.02.011]

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Fracture suppression at steel/concrete connection zones by ECC()

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Journal of Southeast University (English Edition)[ISSN:1003-7985/CN:32-1325/N]

Volumn:

28

Issue:

2012 2

Page:

190-194

Research Field:

Traffic and Transportation Engineering

Publishing date:

2012-06-30

Info

Title:

Fracture suppression at steel/concrete connection zones by ECC

Author(s):

Qian Shunzhi

School of Transportation, Southeast University, Nanjing 210096, China

Keywords:

engineered cementitious composite(ECC);  material ductility;  steel/concrete interaction zones;  fracture suppression

PACS:

U444

DOI:

10.3969/j.issn.1003-7985.2012.02.011

Abstract:

In order to avoid brittle fracture failure, a ductile engineered cementitious composite(ECC)was attempted in steel/concrete connection zones to replace normal concrete. The influence of the ECC material ductility on connection failure modes and structural performance was investigated via the pushout test of stud/ECC connection, the pullout test of two-dimensional anchor bolt/ECC connection and the finite element modeling(FEM). The experimental results suggest that the micromechanically designed ECC with a tensile ductility 300 times that of normal concrete switches the brittle fracture failure mode to a ductile one in steel connection zones. This modification in material behavior leads to higher load carrying capacity and structural ductility, which is also confirmed in FEM investigation. The enhancement in structural response through material ductility engineering is expected to be applicable to a wide range of engineering structures where steel and concrete come into contact.

References:

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Memo

Memo:

Biography: Qian Shunzhi(1976—), male, doctor, professor, sqian@seu.edu.cn.
Foundation items: The National Natural Science Foundation of China(No.51008071), the Natural Science Foundation fo Jiangsu Province(No.BK2010413), Teaching & Research Excellence Grant for Young Faculty Members at Southeast University, the US National Science Foundation(No.CMS-0223971, CMS-0329416).
Citation: Qian Shunzhi.Fracture suppression at steel/concrete connection zones by ECC[J].Journal of Southeast University(English Edition), 2012, 28(2):190-194.[doi:10.3969/j.issn.1003-7985.2012.02.011]

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