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Ratio of cube strength to axial compressive strength of rocks

Soviet Mining Science, 1978
1. For salt rocks of the Starobinsk potash salt deposit a hyperbolic relation exists between the compressive strengths and h/d, determined by the equation $$\sigma = 124.6 + \frac{{178.2}}{{h/d}},kgf/cm^2 .$$ 2. The ratio between the axial compressive strength (h/d≥2) and the cube strength (h/d=1) was as follows: for salt rock 0 ...
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Discussion on Limit Values of Axial Compression Ratio of Steel Reinforced Concrete Columns

Civil Engineering and Urban Planning 2012, 2012
Through the experimental test, influences of axial compression ratio on seismic ductility of SRC columns are analyzed. The limit values of axial compression ratio of the columns are obtained, corresponding to different stirrup ratios at a certain level of displacement ductility.
Yun Yun Li, Bao Sheng Yang
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Ductility design of RC columns. Part 1: consideration of axial compression ratio

HKIE Transactions, 2016
ABSTRACTTo evaluate and quantify the effect of the axial compression ratio (ACR) on the seismic performance of reinforced concrete (RC) columns, studies of analytical relationships between the axial compression and the mechanical behaviour of RC columns were conducted, followed by a comprehensive statistical analysis with 474 sets of experimental data.
Yuen, Terry Y.P.   +2 more
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Ductility design of reinforced concrete shear walls with the consideration of axial compression ratio

HKIE Transactions, 2015
To evaluate and quantify the effect of the axial compression ratio on the seismic performance of reinforced concrete walls, a comprehensive statistical analysis with 474 sets of experimental data was conducted. Stipulated limits on the axial compression ratio and their evaluation methods in various design codes were analysed and compared.
Kuang, Jun Shang, Yuen, Y.P.
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Axial Compression Ratio Limits of HSC Columns Confined with High-Strength Stirrups

Advanced Materials Research, 2010
A total of 10 high-strength concrete columns confined by high-strength complex stirrups were tested under cyclic lateral force and a higher constant axial loading. The results indicate that the hysteresis loop of this type of columns still shows plump spindle-shaped at higher axial compression ratio, with better ductility, energy dissipation capability
Kun Yang   +3 more
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Axial compression ratio limit for self‐centering precast segmental hollow piers

Structural Concrete, 2017
Axial compression ratio limit was investigated for self‐centering precast segmental hollow piers based on post‐earthquake residual axial loading capacity. The analytical method of unbonded posttensioning tendons (PT) stress increment and the simplified method of compression zone height were developed and validated by the finite element model verified ...
Zhen Wang   +2 more
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Effects of Axial Compression Ratio of Central Columns on Seismic Performance of a Multi-Story Underground Structure

International Journal of Computational Methods, 2016
High axial force in central columns induced by strong vertical earthquake component is one of the most important factors in failure of subway stations. In this paper, the pushover method is adopted to simulate nonlinear behaviors of a multi-story subway station in Shanghai with different axial compression ratios through the general purpose finite ...
Chen, Zhi Yi   +3 more
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Compression ratio influence on the performances of a diesel engine equipped with an electrically driven axial compressor

Advanced Topics in Optoelectronics, Microelectronics and Nanotechnologies X, 2020
The „downsizing” phenomenon has grown and has led to the technological and efficient use of the supercharger systems. Despite this, conventional turbocharging systems have a transitional response due to the exchange of power with the engine and affect the elasticity of the engine.
Andrei Cristian Gradinariu   +2 more
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Seismic Behavior Test of Recycled RC Frame Column with Different Axial Compression Ratios

Key Engineering Materials, 2012
Recycled concrete is a kind of new construction materials, and now received more and more attention from researchers and engineers, since its application in engineering projects can well cater to the increasing requirements of development for economic and environment-friendly society.
Jin Song Fan   +3 more
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Experimental Study on Seismic Behavior of Recycled Concrete Grill Walls with Axial Compression Ratio

Applied Mechanics and Materials, 2011
Through the seismic behavior of 4 pieces of concrete grill wall by pseudo- static test, the test sample destruction shape, the skeleton curves under to the different wall material and the different axial compression ratio, consuming energy ability, the ductility coefficient were conducted the contrast research.
Jing Hai Zhou   +2 more
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