Analytical compressive stress-strain model for concrete confined with high-strength multiple-tied-spiral transverse reinforcement

2017 ◽  
Vol 27 (2) ◽  
pp. e1416
Author(s):  
Yizhu Li ◽  
Shuangyin Cao ◽  
Denghu Jing
Keyword(s):  
Compressive Stress ◽  
High Strength ◽  
Transverse Reinforcement ◽  
Stress Strain ◽  
Strain Model

scholarly journals Stress–strain relationship model of glulam bamboo under axial loading

2020 ◽  
Vol 29 ◽  
pp. 2633366X2095872
Author(s):  
Yang Wei ◽  
Mengqian Zhou ◽  
Kunpeng Zhao ◽  
Kang Zhao ◽  
Guofen Li
Keyword(s):  
Tensile Stress ◽  
Compressive Stress ◽  
Failure Modes ◽  
Axial Loading ◽  
Tensile Failure ◽  
Stress Strain ◽  
Laminated Bamboo ◽  
Bamboo Scrimber ◽  
Strain Relationship ◽  
Strain Model

Glulam bamboo has been preliminarily explored for use as a structural building material, and its stress–strain model under axial loading has a fundamental role in the analysis of bamboo components. To study the tension and compression behaviour of glulam bamboo, the bamboo scrimber and laminated bamboo as two kinds of typical glulam bamboo materials were tested under axial loading. Their mechanical behaviour and failure modes were investigated. The results showed that the bamboo scrimber and laminated bamboo have similar failure modes. For tensile failure, bamboo fibres were ruptured with sawtooth failure surfaces shown as brittle failure; for compression failure, the two modes of compression are buckling and compression shear failure. The stress–strain relationship curves of the bamboo scrimber and laminated bamboo are also similar. The tensile stress–strain curves showed a linear relationship, and the compressive stress–strain curves can be divided into three stages: elastic, elastoplastic and post-yield. Based on the test results, the stress–strain model was proposed for glulam bamboo, in which a linear equation was used to describe the tensile stress–strain relationship and the Richard–Abbott model was employed to model the compressive stress–strain relationship. A comparison with the experimental results shows that the predicted results are in good agreement with the experimental curves.

Compressive stress-strain model for low-calcium fly ash-based geopolymer and heat-cured Portland cement concrete

2016 ◽  
Vol 73 ◽  
pp. 136-146 ◽  
Author(s):  
Amin Noushini ◽  
Farhad Aslani ◽  
Arnaud Castel ◽  
Raymond Ian Gilbert ◽  
Brian Uy ◽  
...  
Keyword(s):  
Fly Ash ◽  
Portland Cement ◽  
Compressive Stress ◽  
Portland Cement Concrete ◽  
Cement Concrete ◽  
Stress Strain ◽  
Low Calcium ◽  
Strain Model
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