In this paper, we describe how, through the combination of field testing and finite element simulation, bonding anchoring performance small-diameter rebar under action medium low cycle fatigue load was studied corresponding conclusions were obtained: ① Through test, parameters 6 mm 8 planting specimens obtained after subjected to 10,000, 50,000 100,000 times loading at depths 10d, 15d 20d. The ...

Drought control and resistance affect national food security. With this in mind, we studied five main grain-producing regions of China: Sanjiang Plain, Songnen Plain, Huang-Huai-Hai Plain, the middle Yangtze River and Jianghuai region and Sichuan Basin. Using GIS technology, we evaluated the comprehensive agricultural drought situation based on major crops, the basic drought resistance by integ...

Abstract The bond–slip model plays an important role in the structural analysis of reinforced concrete structures. However, many factors affect behavior, which means that a large number tests are required to establish accurate model. This paper aims data-driven method for prediction historical with few test specimens and features. Therefore, new Mahalanobis-Meta-learning Net algorithm was propo...

To meet the requirements of specifications, intelligent optimization steel bar blanking can improve resource utilization and promote development sustainable construction. As one most important building materials in construction engineering, reinforcing bars (rebar) account for more than 30% cost civil engineering. A significant amount cutting waste is generated during phase. Excessive increases...

Methods which can be used to assess the chloride permeability of various types of concrete in a relatively short time are described. An electrical potential from 60-80 volt DC is applied either between a chloride solution ponded on a slab surface and the top of rebar mat, or between two faces at a core taken from a structure. The amount of chloride and sum of the electrical current which passes...