Bearing capacity tests on strip footing resting on reinforced sand subgrades

1989 ◽  
Vol 26 (1) ◽  
pp. 154-159 ◽  
Author(s):  
M. A. Mahmoud ◽  
F. M. Abdrabbo
Keyword(s):  
Experimental Study ◽  
Bearing Capacity ◽  
Key Words ◽  
Strip Footing ◽  
Test Results ◽  
Reinforced Sand ◽  
Loading Tests ◽  
Load Displacement

This note presents an experimental study concerning a method of improving the bearing capacity of strip footing resting on sand subgrades utilizing vertical nonextensible reinforcement. The test results indicate that this type of reinforcement increases the bearing capacity of subgrades and modifies the load–displacement behaviour of the footing. Key words: bearing capacity, nonextensible reinforcement, loading tests, strip footing, reinforcing element.

scholarly journals BEHAVIOR OF STRIP FOOTING ON REINFORCED SAND SLOPE

2015 ◽  
Vol 21 (3) ◽  
pp. 376-383 ◽  
Author(s):  
Enas B. Altalhe ◽  
Mohd Raihan Taha ◽  
Fathi M. Abdrabbo
Keyword(s):  
Bearing Capacity ◽  
Reinforced Soil ◽  
Strip Footing ◽  
Reinforced Slope ◽  
Bearing Capacity Ratio ◽  
Reinforced Sand ◽  
Capacity Ratio ◽  
Soil Slopes ◽  
Loading Tests ◽  
Slope System

This study evaluated the effects of single, double, and triple reinforcing layers on the bearing capacity ratio (BCR) of strip footing on a sand slope system. Seventy-two laboratory-loading tests were conducted on a stripfooting model on a reinforced sand slope. Moreover, this study illustrated the effects of the different parameters of two reinforcing layers on the bearing capacity of a double-reinforced sand slope. The BCR increased from 1.06 to 3.00 for single-reinforced slope soils, 1.09 to 7.73 for double-reinforced slope soils, and up to 8.00 for three-layered reinforced systems. For double-reinforced soil slopes, the most effective spacing between the two reinforcing layers is 0.3 B.

scholarly journals Behaviour of eccentrically inclined loaded rectangular foundation on reinforced sand

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Sujata Gupta ◽  
Anupam Mital
Keyword(s):  
Bearing Capacity ◽  
Loading Conditions ◽  
Test Results ◽  
Bearing Capacity Ratio ◽  
Reinforced Sand ◽  
The Core ◽  
Capacity Ratio ◽  
Core Boundary ◽  
Rectangular Foundation ◽  
Increasing Load

Abstract This study presents the behaviour of model footing resting over unreinforced and reinforced sand bed under different loading conditions carried out experimentally. The parameters investigated in this study includes the number of reinforced layers (N = 0, 1, 2, 3, 4), embedment ratio (Df /B = 0, 0.5, 1.0), eccentric and inclined ratio (e/L, e/B = 0, 0.05, 0.10, 0.15) and (a = 0°, 7°, 14°). The test sand was reinforced with bi-axial geogrid (Bx20/20). The test results show that the ultimate bearing capacities decrease with axial eccentricity and inclination of applied loads. The test results also show that the depth of model footing increase zero to B (B = width of model footing), an increase of ultimate bearing capacity (UBC) approximated at 93%. Similarly, the multi-layered geogrid reinforced sand (N = 0 to 4) increases the UBC by about 75%. The bearing capacity ratio (BCR) of the model footing increases with an increasing load eccentricity to the core boundary of footing; if the load eccentricities increase continuity, the BCR decreases. The tilt of the model footing is increased by increasing the eccentricity and decreases with increasing the number of reinforcing layers.

Bearing Capacity of an Eccentrically Loaded Strip Footing on Reinforced Sand Slope

2019 ◽  
Vol 56 (4) ◽  
pp. 232-238
Author(s):  
A. Abdi ◽  
K. Abbeche ◽  
B. Mazouz ◽  
R. Boufarh
Keyword(s):  
Bearing Capacity ◽  
Strip Footing ◽  
Reinforced Sand

Experimental Study on the Axial Loading Tests of RC Columns Strengthened with Steel Tube

2012 ◽  
Vol 204-208 ◽  
pp. 2878-2882 ◽  
Author(s):  
Miao Zhou ◽  
Jian Wei Li ◽  
Jing Min Duan
Keyword(s):  
Experimental Study ◽  
Bearing Capacity ◽  
Axial Loading ◽  
Steel Tube ◽  
Experimental Results ◽  
Engineering Practice ◽  
Rc Columns ◽  
Short Columns ◽  
Loading Tests ◽  
Engineering Staff

This paper carries out a series of experimental study on 6 column specimens, analyses and compares with the different parameters on the axial loading tests of RC columns and RC columns strengthened with steel tube. The experimental results show that the RC columns strengthened with steel tube take full advantage of loading properties of both materials, thus greatly improve the bearing capacity of specimens. With the same wall thickness steel tube, the improving degree of bearing capacity of long columns is bigger than the short columns, and the reinforcement effect is more obvious. The experimental results can offer reference for scientific research and engineering staff, and promote this reinforcement method to be widely used in engineering practice.

Ultimate bearing capacity of shallow foundations on sand with geogrid reinforcement

1993 ◽  
Vol 30 (3) ◽  
pp. 545-549 ◽  
Author(s):  
M.T. Omar ◽  
B.M. Das ◽  
V.K. Puri ◽  
S.C. Yen
Keyword(s):  
Bearing Capacity ◽  
Key Words ◽  
Model Test ◽  
Ultimate Bearing Capacity ◽  
Shallow Foundations ◽  
Shallow Foundation ◽  
Laboratory Model ◽  
Critical Depth ◽  
Test Results ◽  
Laboratory Model Test

Laboratory model test results for the ultimate bearing capacity of strip and square foundations supported by sand reinforced with geogrid layers have been presented. Based on the model test results, the critical depth of reinforcement and the dimensions of the geogrid layers for mobilizing the maximum bearing-capacity ratio have been determined and compared. Key words : bearing capacity, geogrid, model test, reinforced sand, shallow foundation.

Research on Hysteretic Behavior of the Concrete Filled Square CFRP-Steel Tubular (S-CFRP-CFST) Beam-Columns (I): Experimental Study

2010 ◽  
Vol 163-167 ◽  
pp. 3580-3585
Author(s):  
Yuan Che ◽  
Qing Li Wang ◽  
Yong Bo Shao ◽  
Hai Tao Mu
Keyword(s):  
Experimental Study ◽  
Bearing Capacity ◽  
Local Buckling ◽  
Steel Tube ◽  
Hysteretic Behavior ◽  
Strengthening Effect ◽  
Test Results ◽  
Load Bearing Capacity ◽  
Beam Columns ◽  
Hysteretic Performance

Overall 12 specimens were experimentally investigated in this paper to study the hysteretic behaviors of the concrete-filled square CFRP-steel tubular (S-CFRP-CFST) beam-columns. The test results indicated that CFRP can provide transverse confinement effect and longitudinal strengthening effect for the concrete filled square steel tubular (S-CFST) beam-columns effectively and the local buckling of the steel tube is deferred. The hysteretic load-deflection curves and the hysteretic moment-curvature curves at the mid-span of all the specimens are generally plump, and it shows these specimens have good hysteretic performance. In the later loading period, the load bearing capacity drops.

Improvement of bearing capacity of strip footing on reinforced sand

2017 ◽  
pp. 1-9 ◽  
Author(s):  
Sadok Benmebarek ◽  
Safa Djeridi ◽  
Naïma Benmebarek ◽  
Lamine Belounar
Keyword(s):  
Bearing Capacity ◽  
Strip Footing ◽  
Reinforced Sand

Study on Experimental Behavior of Concrete Circular Column Confined by HFRP under Axial Compression

2012 ◽  
Vol 450-451 ◽  
pp. 491-494 ◽  
Author(s):  
Shun De Xu ◽  
Li Juan Li ◽  
Yong Chang Guo
Keyword(s):  
Experimental Study ◽  
Bearing Capacity ◽  
Axial Compression ◽  
Test Results ◽  
Hybrid Fiber ◽  
Circular Column ◽  
Experimental Behavior ◽  
Glass Frp ◽  
Frp Sheet

A loading comparison experimental study on concrete circular columns confined by hybrid fiber sheets of carbon FRP sheet, basalt FRP sheet, and glass FRP sheet is carried out to analyze their failure feature, bearing capacity, ductility and economy. Test results show that HFRP can increase the ductility of column and deduce the price on the precondition of having enough bearing capacity.

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