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Foundation analysis and design
01 Jan 1968-
TL;DR: In this paper, Fondation de soutenagement et al. presented a reference record for Dimensionnement Reference Record created on 2004-09-07, modified on 2016-08-08.
Abstract: Keywords: Fondation ; Mur de soutenement ; Pieux ; Capacite portante ; Ancrage ; Dimensionnement Reference Record created on 2004-09-07, modified on 2016-08-08
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TL;DR: In this article, a FORTRAN-based reliability-based design program was developed for the design of raft footings based on the ultimate and serviceability design requirements of BS8110 (1997).
Abstract: In this study, a FORTRAN-based reliability-based design program was developed for the design of raft footings based on the ultimate and serviceability design requirements of BS8110 (1997) The well-known analysis of plate on elastic foundation using displacement method of analysis was used in conjunction with the design point method The design point method was adopted for designing to a pre-determined safety level, T Example of the design of a raft footing is included to demonstrate the simplicity of the procedure It was found among other findings that there is a saving of about 64% of longitudinal reinforcement applied at the column face using the proposed method as compared with the BS8110 design method Also, the depth of footing required using the proposed procedure was found to be 47% lower than in the deterministic method using BS8110 Also, considering a target safety index of 30 was found to be cheaper than considering a target safety index of 40 for the same loading, material and geometrical properties of the footing It is therefore concluded that the proposed procedure is quite suitable for application
7 citations
Cites methods from "Foundation analysis and design"
...…Idris, Afolayan Joseph Olasehinde and Osinubi Kolawale Jowunlo - 422 - 3000 mm 30 00 m m 2 4 5 6 8 9 10 11 13 23 22 34 35 30 31 27 45 39 55 60 24 26 47 1 3 57 50 44 51 2 3631 6 a Node Numbers Element Numbers Column Loading b Figure (1): Plate on Elastic Foundation (Bowles, 1997) Ø P2-X2 P3X3 dow n...
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...“Plates and Tanks on Elastic Foundations: An Application of Finite Element Method”....
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...Figure (1): Plate on Elastic Foundation (Bowles, 1997)...
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...“Comparative Modelling Study of Reinforced Beam on Elastic Foundation”....
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...Reliability-Based Design… Abubakar Idris, Afolayan Joseph Olasehinde and Osinubi Kolawale Jowunlo - 422 - 3000 mm 30 00 m m 2 4 5 6 8 9 10 11 13 23 22 34 35 30 31 27 45 39 55 60 24 26 47 1 3 57 50 44 51 2 3631 6 a Node Numbers Element Numbers Column Loading b Figure (1): Plate on Elastic Foundation (Bowles, 1997) Ø P2-X2 P3X3 dow n...
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TL;DR: In this paper, the geotechnical and geochemical properties of Al-Nekhaila sabkha were investigated by three in situ tests, namely Mackintosh probing, vane shear, and sand cone, to a maximum depth of 9 m.
Abstract: Sabkhas are widespread along the coastal plains of the
Red Sea. The development of sabkha is mostly attributed to the hot
climate where evaporation, which is responsible of the development
of brines, largely exceeds precipitation. The soil poses several geotechnical
problems specially when wet. The high sulfate and chloride
content in the groundwater may also cause corrosive action on reinforced
concrete.
The city of Jeddah is rapidly expanding and new residential and
commercial buildings are constructed each year in the area close to the
shoreline where sabkhas exist. If the expansion extends southward, it
will reach Al-Nekhaila sabkha. Therefore, the geotechnical and geochemical
characteristics of this sabkha were considered. The field investigations
were performed by three in situ tests, namely Mackintosh
probing, vane shear, and sand cone, to a maximum depth of 9 m.
Three main soil units have been identified; sand (SM, SC, and SP),
silt (ML, and MH) and clay (CL, and CH). The salts are present as cementing
material between the soil grains in the top one meter. The
sand ranges from loose to medium dense as indicated by the soil probing.
The average undrained shear strength for the silt is 84 kN/m2 and
for the clay is 90 kN/m2. Some geotechnical problems are expected
from the clay layer. The groundwater level is 1 m to 2.5 m deep and is
classified as saline to brine.
7 citations
TL;DR: In this article, the effects of railway sleepers on train-track dynamic interaction were investigated in two dimensions by using the finite element method and the developed model was validated through comparison of the results with those obtained by previous researchers.
Abstract: Review of technical literature regarding to train-induced vibrations shows that the effects of unsupported railway sleepers on this issue have been less investigated. So, the present study was devoted to numerical investigations of the mentioned issue. In this regard, first the problem of longitudinal train–track dynamic interaction was simulated in two dimensions by using the finite element method and the developed model was validated through comparison of the results with those obtained by previous researchers. In the next stage, a series of sensitivity analyses were accomplished to account for the effects of value of gap beneath the unsupported sleeper(s) and the track support stiffness on increasing the sleeper displacement and track support force. Moreover, the raised sleeper support force was introduced as applied load to a two-dimensional plane strain finite element model of track in lateral section and consequently the train-induced vibrations were assessed. As a result, a series of regression equ...
7 citations
TL;DR: In this article, an improved numerical method to obtain the exact static element stiffness matrices is proposed to perform the spatially coupled elastic and stability analyses of non-symmetric and open/closed thin-walled beam-columns with and without two types of elastic foundation.
7 citations
TL;DR: Groups of model wood piles driven to end bearing through dense sand over soft clay were used to determine the relative settlement of the soil surface inside and outside the groups as the soil was c...
Abstract: Groups of model wood piles driven to end bearing through dense sand over soft clay were used to determine the relative settlement of the soil surface inside and outside the groups as the soil was c...
7 citations
Cites methods from "Foundation analysis and design"
...Teng (1962) recommends using the lesser value of the negative skin friction around a single pile times the number of piles or the negative skin friction around the group of piles plus the weight of the group block, whereas Bowles (1988) recommends using the higher value (the former uses total stress analysis and the latter uses effective stress " , ,Can....
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