Finite Element Study Using FE Code (PLAXIS) on the Geotechnical Behavior of Shell Footings

Huat, Bujang B. K.; Mohammed, Thamer Ahmed

doi:10.3844/jcssp.2006.104.108

Cited by 25 publications

(12 citation statements)

References 6 publications

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“…An interesting side effect of this is that, there is a greater friction available between the core soil and the foundation soil in the case of shell footings than between the concrete and foundation soil in the case of plane footings, to resist horizontal loads. Huat and Mohammed (2006) using the finite element code, PLAXIS, carried out a study on the geotechnical behavior of the shell footings. From the finite element results, it was found that the shell footing had a better load carrying capacity compared with the slab/flat footing for a similar cross sectional area.…”

Section: Methodsmentioning

confidence: 99%

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Experimental and Theoretical Study on Bearing Capacity of Conical Shell Foundations Composed of Reactive Powder Concrete

Fattah¹

2015

Acta Geodynamica Et Geomaterialia

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Many forms of shells are available for use as foundations. Then frustum of a cone in the upright position can serve as footing for columns or raft for structure such as chimneys. Reactive Powder Concrete (RPC) is an ultra-high strength, low porosity material with high cement and silica fume contents and steel fibers. The present study aims at studying the RPC as a material used to construct RPC shell foundations. A complete load-frame assembly was designed and fabricated for experimental work. Experimental tests are conducted to study the effect of steel fiber volumetric ratio (V f), silica fume content (S f), change eccentricity, and rise of shell to radius of base ratio (f/r 2) on the behavior of conical shell foundations. Results of tests conducted on wirereinforced smallconcrete models of conical foundations under loads established substantially high values of load factors involved in the traditional design of the conical foundations by membrane theory. The increased ratio of height to radius (f/r 2) for the shell foundation from 0.25 to 0.75 increases the ultimate load of footing by about 15 %. The conical shell footing can admirably resist smaller values of accidental eccentricities of load (due to unanticipated moment) that may occur in practice.

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Section: Methodsmentioning

confidence: 99%

“…where Q is the design load at the design eccentricity of e d . However, the work done by the soil pressure depends on the eccentricity parameter e. Thus the expression for the ultimate load Q u used in the parametric study pertaining to e takes the form (Kurian (2004) and Huat et al (2006)…”

mentioning

confidence: 99%

Experimental and Theoretical Study on Bearing Capacity of Conical Shell Foundations Composed of Reactive Powder Concrete

Fattah¹

2015

Acta Geodynamica Et Geomaterialia

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“…The quantity being installed also plays an important role to achieve significant savings [64]. Prefabricated footings in residential schemes is a suitable alternative for large-scale construction since handling and transportation costs are important considerations, which are reduced when installed in large volumes [65]. When dealing with a large-scale project, the lead time of footing installation may be reduced since the components are efficiently procured and readily assembled on-site [64].…”

Section: Advantages Of Prefabricated Footing Solutionsmentioning

confidence: 99%

A Feasibility Review of innovative Prefabricated Footing Systems for Residential Structures

Teodosio¹,

Sk²,

Ngo³

et al. 2018

Preprint

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“…It is widely accepted that results from PLAXIS are reliable. PLAXIS also has been used to analyse the association of soil and structural foundation (Huat and Mohammed, 2006).…”

Section: Softwarementioning

confidence: 99%

Footing Under Static Loading: Land Subsidence

Budihardjo¹,

Yang²,

Chegenizadeh³

et al. 2015

American Journal of Applied Sciences

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Land and footing subsidence caused by groundwater extraction is a source of many problems for buildings and infrastructures. This study aims at extending the knowledge of footing subsidence causing by ground water pumping by considering various well and load conditions. The approach is to use PLAXIS simulation to investigate the influence of well conditions on the subsidence of surface footing subjected to combined distributed load. A number of soil models with plain strain, homogeneous and transient flow behavior were built. While the groundwater extraction rate was set up at 20 m 3 /day for each well, the obvious influence of important parameters including well numbers, well location and load magnitude on footing subsidence and surface profile were investigated. It was found that increasing the number of wells will trigger greater footing subsidence, while the location of the wells will slightly affect the surface profile of both the aquifer and footing. In this study, the effect of distributed load above the footing to the footing itself was also investigated by doubling the distributed load applied. The simulation results showed that distributed load significantly contribute to the subsidence of footing.

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Finite Element Study Using FE Code (PLAXIS) on the Geotechnical Behavior of Shell Footings

Cited by 25 publications

References 6 publications

Experimental and Theoretical Study on Bearing Capacity of Conical Shell Foundations Composed of Reactive Powder Concrete

Experimental and Theoretical Study on Bearing Capacity of Conical Shell Foundations Composed of Reactive Powder Concrete

A Feasibility Review of innovative Prefabricated Footing Systems for Residential Structures

Footing Under Static Loading: Land Subsidence

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