Affiliation:
1. School of Civil Engineering, Zhengzhou University of Technology, Zhengzhou 450044, China
2. School of Water Conservancy and Civil Engineering, Zhengzhou University, Zhengzhou 450001, China
Abstract
To investigate the mechanical properties of high-strength stainless steel wire mesh (HSSSWM) in Engineering Cementitious Composites (ECCs) and determine a reasonable lap length, a total of 39 specimens in 13 sets were designed and fabricated by considering the diameter of the steel strand, spacing of the transverse steel strand, and lap length. The lap-spliced performance of the specimens was tested through a pull-out test. The results revealed two failure modes in the lap connection of steel wire mesh in ECCs: pull-out failure and rupture failure. The spacing of the transverse steel strand had little effect on the ultimate pull-out force, but it restricted the slip of the longitudinal steel strand. A positive correlation was found between the spacing of the transverse steel strand and the slip amount of the longitudinal steel strand. With an increase in lap length, the slip amount and ‘lap stiffness’ to peak load increased, while the ultimate bond strength decreased. Based on the experimental analysis, a calculation formula for lap strength considering the correction coefficient β was established.
Funder
National Natural Science Foundations of China
Housing and urban and rural Construction Science and Technology Program of Henan Province
Ministry of Housing and Urban–Rural Development Science and Technology Program
Subject
General Materials Science