Fracture mechanism and slip strength of perfobond strip in steel-concrete composite structures

2016 Fiscal Year Final Research Report

• Project/Area Number: 25420485
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Structural engineering/Earthquake engineering/Maintenance management engineering
• Research Institution: Hiroshima University
• Principal Investigator: Fujii Katashi 広島大学, 工学研究院, 教授 (60127701)
• Project Period (FY): 2013-04-01 – 2017-03-31
• Keywords: 孔あき鋼板ジベル / ずれ耐荷力 / コンクリート拘束因子

Outline of Final Research Achievements

Actual composite structures are usually designed based on the results which are obtained by elemental tests such as push-out test. The slip strength in the elemental test depends significantly on the concrete confinements, such as friction force at the bottom, concrete covering, rebar, the size of concrete etc. Then, evaluating the slip strength of an actual structure should be evaluated by considering only the confinement factors in the real structure. In this paper, fracture mechanism of elemental test is clarified, and slip strength evaluation formula is proposed based on the fracture mechanism. On the other hand, the slip strength of composite girders is investigated and compared with that of elemental test. As result, it is concluded that the evaluation formula can be applicable to evaluate the slip strength of a composite girder.

Free Research Field

維持管理工学，鋼構造，複合構造