Load transfer mechanism and critical length of anchorage zone for anchor bolt

Autor: Xingliang Xu, Suchuan Tian
Rok vydání: 2019
Předmět:
Materials science
Science
Materials Science
Material Properties
0211 other engineering and technologies
02 engineering and technology
Laboratory Tests
010502 geochemistry & geophysics
Research and Analysis Methods
01 natural sciences
Critical length
Weight-Bearing
Transfer mechanism
Shear stress
Mechanical Properties
Elasticity (economics)
Shear Stresses
021101 geological & geomatics engineering
0105 earth and related environmental sciences
Mechanical Phenomena
Damage Mechanics
Multidisciplinary
business.industry
Physics
Simulation and Modeling
Classical Mechanics
Eigenvalues
Structural engineering
Equipment Design
Finite element method
Deformation
Anchor bolt
Algebra
Linear Algebra
Research Design
Physical Sciences
Medicine
Mechanical Stress
Engineering and Technology
Stress
Mechanical
Axial force
Deformation (engineering)
business
Shear Strength
Mathematics
Research Article
Zdroj: PLoS ONE
PLoS ONE, Vol 15, Iss 1, p e0227539 (2020)
ISSN: 1932-6203
Popis: The length of anchorage zone of an anchor bolt affects the distribution of axial force and shear stress therein. Based on a shear-displacement model, the load distribution of anchor bolts in the elastic deformation stage was analysed. Moreover, the mechanical response of threaded steel anchor bolts with different anchorage lengths was explored through pull-out test and numerical simulation. The results showed that axial force and shear stress were negatively exponentially distributed within the anchorage zone of anchor bolts in which there were the maximum axial force and shear stress at the beginning of the anchorage zone. In the elastic deformation stage of the anchorage, the longer the anchorage length, the more uniformly the shear stress was distributed within the anchorage zone and the larger the ultimate shear stress; however, there was a critical anchorage length, which, when exceeded, the ultimate shear stress remained unchanged. The calculation formula for the critical anchorage length was deduced and a reasonable anchorage length determined. The research result provides an important theoretical basis for rapid design of support parameters for anchor bolts.
Databáze: OpenAIRE
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