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Letteratura scientifica selezionata sul tema "RAFT SLAB"

Autore: Grafiati

Pubblicato: 11 settembre 2023

Ultima modifica: 31 luglio 2025

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Articoli di riviste sul tema "RAFT SLAB"

1

Wang, Xiao Wei, Wen Ling Tian, Zhi Yuan Huang, Ming Jie Zhou, and Xiao Yan Zhao. "Analysis on Punching Shear Behavior of the Raft Slab Reinforced with Steel Fibers." Key Engineering Materials 400-402 (October 2008): 335–40. http://dx.doi.org/10.4028/www.scientific.net/kem.400-402.335.

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The thickness of the raft slab is determined by punching shear. The raft slab is commonly thick, which causes concrete volume is large. Mass concrete can bring disadvantage to the foundation. In order to increase the bearing capacity and reduce the thickness, it is suggested that the raft slab to be reinforced by steel fibers. There are five groups of specimens in this paper. S1 is the common reinforced concrete slab. S2 and S3 are concrete slabs reinforced by steel fibers broadcasted layer by layer when casting specimen. S4 and S5 are concrete slabs reinforced by steel fibers mixed homogeneou

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2

Dhage, Amit, and S. S. Solanke. "Comparative Analysis of Raft, Pile & Piled Raft Foundation using Designing Software." IOP Conference Series: Earth and Environmental Science 1193, no. 1 (2023): 012006. http://dx.doi.org/10.1088/1755-1315/1193/1/012006.

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Abstract Raft foundations are essentially a slab that extends the entire length of the building, sustaining and dispersing its mass to the earth. A pile foundation is a collection of columns that are erected or inserted into the ground to distribute weight to the subsoil underneath. A pile is a long, cylindrical construction made made of a sturdy substance such as concrete. Building loads are transferred to hard strata, rocks, or high-bearing-capacity soil using piles. Pinned raft foundations are a combination of a pile and a raft slab. They’re frequently used for large structures and when the

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3

M S, Padmanaban, and J. Sreerambabu. "Issues on Design of Piled Raft Foundation." JOURNAL OF ADVANCES IN CHEMISTRY 14, no. 1 (2018): 6057–61. http://dx.doi.org/10.24297/jac.v14i1.5905.

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A piled raft foundation consists of a thick concrete slab reinforced with steel which covers the entire contact area of the structure, in which the raft is supported by a group of piles or a number of individual piles. Bending moment on raft, differential and average settlement, pile and raft geometries are the influencing parameters of the piled raft foundation system. In this paper, a detailed review has been carried out on the issues on the raft foundation design. Also, the existing design procedure was explained.

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Yu, Jing Liang, and Dong Yang. "Construction Technical Measures and Control of Concrete Temperature Cracking for a Mass Flat Plate Type Raft Foundation." Applied Mechanics and Materials 484-485 (January 2014): 717–21. http://dx.doi.org/10.4028/www.scientific.net/amm.484-485.717.

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The mass flat raft foundation Section is large and Cement is in large quantities, the temperature changes in the larger cement hydration heat of the water releasing, the temperature stress is main reason reducing cracking. According to the basement of a project of Guangzhou large slab raft foundation engineering as an example, Discussing the construction technology measures of early crack of large volume concrete of raft plate in the process of construction,. The results show that it Can effectively prevents the slab foundation structure cracking and achieves good results through controlling C

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Burkovič, Kamil, Martina Smirakova, and Pavlina Matečková. "Testing and Modelling of Concrete Pile Foundations." Key Engineering Materials 738 (June 2017): 287–97. http://dx.doi.org/10.4028/www.scientific.net/kem.738.287.

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Foundation of building on concrete piles is often used when it is necessary to carry the load into larger depth as by common foundation. Bearing capacity of piles or piled raft foundation is wide area to research. This paper deals with experimental load test of concrete pile and with their numerical modelling. Several types of foundation construction were tested and two kinds will be presented and compared in this paper - reinforced concrete foundation slab and raft foundation (made of reinforced concrete foundation slab supported by drilled reinforced concrete pilot). These types of foundatio

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Yin, Su Hua, Yuan Huang, and Ying Hui Yuan. "Research on Mass Concrete Construction Techonogy of Raft Foundation of Hongyun Building." Advanced Materials Research 690-693 (May 2013): 709–13. http://dx.doi.org/10.4028/www.scientific.net/amr.690-693.709.

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The foundation of A tower of Hongyun building is made of raft board foundation which is 4200mm in the thickness and 3500mm beside side of the core tube. It is researched that the raft foundation mass concrete construction technology is expatiated from temperature and cracks of the raft foundation and the temperature control and monitoring of the concrete base slab construction and concrete curing.

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SAMORODOV, Oleksandr, and Olha HAVRYLIUK. "Numerical studies of the distribution capability of a continuous linear strain soil base model for largesized raft foundations." Bases and Foundations, no. 48 (June 28, 2024): 75–85. http://dx.doi.org/10.32347/0475-1132.48.2024.75-85.

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The paper examines the existing methodology for determining the main design parameters of the model in the form of a continuous linearly strained layer of finite distribution capability (the design thickness of the layer H0 and design stress-strain modulus E0) to simulate the adequate interaction between soil bases and large-size slab foundations. The aim of this work is to numerically study the stress-strain state of a uniformly loaded flexible rectangular foundation slab when the thickness of the soil base model layer is reduced in the form of a continuous linearly deformed layer of finite d

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Hong, Qiuyun, Bin Yan, and Tingyu Ma. "The Research of Raft Foundation Anti-floating Piles’ Performance and its Impact on the Raft Foundation." MATEC Web of Conferences 175 (2018): 01038. http://dx.doi.org/10.1051/matecconf/201817501038.

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By using the finite element software ANSYS and ABAQUS, we established the calculation model of raft foundation anti-floating pile foundation, and studied the mechanical properties of the raft foundation and the influence of raft foundation on the foundation. By comparing the stress and displacement of the anti-floating pile under different pile distance, the influence trend of the different anti-floating pile layout scheme on the mechanical property of the floating slab foundation anti-floating pile is explained, Then the optimal arrangement scheme of anti-floating pile was acquired. Under the

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9

TIMCHENKO, R. O., D. A. KRISHKO, and V. O. SAVENKO. "APPLICATION OF PILE-RAFT FOUNDATION IN COMPLEX ENGINEERING AND GEOLOGICAL CONDITIONS." Bridges and tunnels: Theory, Research, Practice, no. 26 (November 26, 2024): 86–94. http://dx.doi.org/10.15802/bttrp2024/315513.

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Abstract (sommario):

Purpose. The purpose of the study is to analyze the existing structures of slab-pile foundations, to determine the features of their application and the possibility of their use in complex engineering and geological conditions, as well as to develop alternative constructive solutions of slab-pile foundations for their optimal operation in earthquake-prone areas with base, which deforms unevenly. Methodology. In the study, an analysis of literary sources, data on built and designed slab-pile foundations, their characteristics and application conditions were determined. Special attention is paid

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Zerkal, Evgeny O., Alexey Yu Kalashnikov, Andrey E. Lapshinov, and Aleksey I. Tyutyunkov. "Using ground penetrating radars to detect internal defects in concrete foundation slabs." Vestnik MGSU, no. 7 (July 2020): 980–87. http://dx.doi.org/10.22227/1997-0935.2020.7.980-987.

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Abstract (sommario):

Introduction. The co-authors have analyzed a monolithic reinforced concrete piled raft foundation of a multi-storied residential building under construction. The mission of this research effort is to obtain trustworthy information about the internal structure of a foundation slab, to detect and survey internal defects, if any. This research project is to capture potential problems that may accompany the inspection of a foundation, to generate awareness about ground penetrating radar surveys and their methods that can help to optimize operating processes in the process of inspection. Mate

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Più fonti

Tesi sul tema "RAFT SLAB"

1

Bains, Randip Kaur. "Neuroendocrine physiology in the transgenic SLOB rat : a new obesity model." Thesis, University College London (University of London), 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.249306.

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2

SINHA, PRIYANKA. "ANALYSIS OF DIFFERENT TYPES OF RAFT FOR DIFFERENT SOIL CONDITIONS FOR A MULTI STORIED BUILDING." Thesis, 2016. http://dspace.dtu.ac.in:8080/jspui/handle/repository/14869.

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Raft foundations are large inverted concrete slabs supporting superstructure through pedestals and walls. The choice of Raft slab can be made under following circumstances: 1) The bearing capacity of soil is low, 2) The columns are spaced so close that the isolated footings overlap 3) The column loads are heavy so that most of the area(>50%) is covered by spread footings. 4) At some locations, there is soft soil. Raft foundations are best suited to use for deep basements, both to spread the column loads uniformly, and to provide basement floor slab. Raft foundations are useful in reducing

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Libri sul tema "RAFT SLAB"

1

Fédération internationale de la précontrainte. and Fédération internationale du béton, eds. Recommendations for the design of post-tensioned slabs and foundation rafts. SETO, 1998.

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Capitoli di libri sul tema "RAFT SLAB"

1

Fujii, M., and A. Miyamoto. "Performance improvement of precast, reinforced and prestressed concrete raft units (beam and slab) under impulsive loading." In Precast Concrete Raft Units. Springer US, 1991. http://dx.doi.org/10.1007/978-1-4615-2644-5_5.

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2

"raft slab." In Dictionary Geotechnical Engineering/Wörterbuch GeoTechnik. Springer Berlin Heidelberg, 2014. http://dx.doi.org/10.1007/978-3-642-41714-6_180156.

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Tejchman A., Gwizdala K., Krasinski A., and Slabek A. "Model tests of piled raft foundation." In Proceedings of the 16th International Conference on Soil Mechanics and Geotechnical Engineering. IOS Press, 2005. https://doi.org/10.3233/978-1-61499-656-9-2049.

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The problem of contribution of piles and slab in transmission of load into the subsoil by piled raft foundation is discussed. In the paper the results of model tests aiming at the analysis of the problem for various number of piles and its spacing are presented. Piles-slab-subsoil interaction is determined by the effectiveness coefficient &eta;.

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Nobre Duarte, Pina João, and Xavier Baldomiro. "The behaviour under excavation of the Luanda's sandy formation: case studies." In Proceedings of the 15th African Regional Conference on Soil Mechanics and Geotechnical Engineering. IOS Press, 2011. https://doi.org/10.3233/978-1-60750-778-9-243.

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The aim of this paper is to describe the geotechnical solutions that are being applied in the sandy formation of the city of Luanda. For that purpose the author will describe the case study of the excavation, the retaining wall and the foundation solution of two buildings over twenty storeys high and with several underground floors. Besides the constructive solutions, such as diaphragm walls as the retaining wall system, ground anchors, struts, jet-grouting slab and top-down slabs as the stabilization system, raft and combined pile raft foundation as the foundation system and injections as gro

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Gong J.F., Huang X.L., and Teng Y.J. "Design for control settlement of large-area thick raft foundation." In Proceedings of the 17th International Conference on Soil Mechanics and Geotechnical Engineering. IOS Press, 2009. https://doi.org/10.3233/978-1-60750-031-5-1997.

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In-situ monitoring results show that when the ratio of thickness to span of the raft h/L &gt; 1/6, if the soil is uniform, rigidity of superstructure is good, load distribution is comparatively uniform, the deformation of entire raft is irregular and continuous, and the raft foundation under tall building is still limited rigidity, the deformation of the tall building itself together with the raft slab within its load dispersion range is an integral bent plane. For tall buildings with bending in no excess of 0.5 %, the relative bending deformation between tall building and podium is no mor

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6

Sonoda R., Matsumoto T., and Kitiyodom P. "Deformation analysis of a piled raft foundation constructed using reverse construction method." In Proceedings of the 17th International Conference on Soil Mechanics and Geotechnical Engineering. IOS Press, 2009. https://doi.org/10.3233/978-1-60750-031-5-1301.

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A building was constructed using reverse construction method, in which the superstructure (building) and the substructure (foundation) were constructed simultaneously. The foundation was regarded as a pile group without contribution of the raft resistance in earlier stages of construction, while the foundation behaved as a piled raft after the construction of the mat slab (raft) was completed. Post-analysis of the deformation of the foundation was carried out using a three-dimensional analysis program PRAB and the results of the pile load test. The results of the analysis are compared with the

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7

Konstantinou, Alexandros. "The “death” of the Sevier-Laramide orogen: Gravitational collapse of the crust or something else?" In Tectonic Evolution of the Sevier-Laramide Hinterland, Thrust Belt, and Foreland, and Postorogenic Slab Rollback (180–20 Ma). Geological Society of America, 2022. http://dx.doi.org/10.1130/2021.2555(15).

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ABSTRACT The Basin and Range Province is considered to be one of the most iconic continental rift provinces that postdates a prolonged orogeny. Here, I present evidence that challenges all the assumptions that lead to the long-held notion that gravitational collapse of thickened (55–65-km-thick) continental crust was a major driver of Basin and Range extension. This study focused on integrating the regional tectonic and magmatic history of the northeastern region of the Basin and Range (centered on the Albion–Raft River–Grouse Creek metamorphic core complex) and combines insights from a compil

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8

Xiao, Qingfeng, Lingshan Shen, Yingying Peng, and Yi Huang. "Research on Design of Pile Foundation Considering Superstructure Synergy." In Advances in Transdisciplinary Engineering. IOS Press, 2023. http://dx.doi.org/10.3233/atde230574.

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In the urban construction of high-rise buildings, pile raft foundation is widely used nowadays. Based on the empirical formula of Chinese design codes and the related theory of computer finite element, this paper conducts a general study on the calculation of mono-pile bearing capacity of pile raft foundation, established a numerical model to calculate the interaction between pile raft foundation and superstructure, considering the internal force and settlement deformation of pile raft foundation under the superstructure load and shield tunnel construction steps. In order to ensure the stabili

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Xia, Yan. "Study on Vibration Reduction Due to Pile-Raft Foundation for High-Tech Lab Based on Frequency Sweep Test." In Advances in Transdisciplinary Engineering. IOS Press, 2021. http://dx.doi.org/10.3233/atde210297.

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Evaluation of the vibration reduction of piled-slab is of great significance for the layout of process and power equipment in high-tech facilities. In-situ measurement was performed to study the vibration reduction of the piled-slab of a high-tech lab. Slab vibrations with frequencies of 10 Hz to 60 Hz with steps 5 Hz were induced by an electromagnetic vibration exciter. INV3062U data acquisition device and 941B sensor were used to measure the velocities in the vertical direction at six measurement locations on the slab surface. For single frequency, the measurement results showed that the pea

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Burkovic, Kamil, and Martina Janulikova. "The Elastic Deformation of Soil Around Models of Rigid Slab and Raft." In Proceedings of the 2nd Czech-China Scientific Conference 2016. InTech, 2017. http://dx.doi.org/10.5772/66802.

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Atti di convegni sul tema "RAFT SLAB"

1

Manuel Pirozzo, Bernardo, Mariano De Paula, Sebastián Aldo Villar, and Gerardo Gabriel Acosta. "Underwater Rat-SLAM with Memristive Spiking Neural Networks." In OCEANS 2024 - Halifax. IEEE, 2024. http://dx.doi.org/10.1109/oceans55160.2024.10754319.

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2

Al-Salloum, Yousef, Tarek Almusallam, Tuan Ngo, Hussein Elsanadedy, Husain Abbas, and Priyan Mendis. "Progressive Collapse Analysis of a Medium-Rise Circular RC Building Against Blast Loads." In ASME 2016 35th International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/omae2016-54901.

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This paper investigates the vulnerability of a typical medium-rise circular RC building against progressive collapse as a result of blast generated waves. The building is an eight storied (including one story basement) commercial complex. The likely blast threat scenario was identified by qualitatively assessing the vulnerability of the critical elements of the structure. LS-DYNA was used for the finite element modelling of the structure. The study presents local model analysis of one of its circular columns for which fluid-structure interaction through Alternate Lagrangian Eulerian (ALE) elem

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Sandamal, N. G. T. M., M. T. R. Jayasinghe, and L. I. N. De Silva. "Cellular pile raft foundations for lightweight multi-storey buildings." In Civil Engineering Research Symposium 2024. Department of Civil Engineering, University of Moratuwa, 2024. http://dx.doi.org/10.31705/cers.2024.40.

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The global demand for housing and urban land scarcity has driven the need for multistorey buildings. The substructure design plays a crucial role in ensuring the stability of these structures, as traditional foundation methods, like piled or piled raft foundations, are essential for distributing the substantial loads. However, the high costs associated with these systems have prompted the e ploration of alternative foundation designs This study’s approach seeks to optimize foundation construction by reducing costs without compromising structural integrity, making it a viable solution for susta

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Sengor, T. "Dispersive slab waveguide modeling of discontinuities in ionosphere." In Proceedings of International Conference on Recent Advances in Space Technologies. IEEE, 2003. http://dx.doi.org/10.1109/rast.2003.1303999.

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5

Zhao, Chenhao, Shiyang Meng, Yin Dai, and Ye Liu. "RAFT-SLAM: Deep Optical-Flow Assisted Simultaneous Localization and Mapping." In 2021 China Automation Congress (CAC). IEEE, 2021. http://dx.doi.org/10.1109/cac53003.2021.9727736.

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6

Yao, Jun, and Jinping Suo. "Effect of Melting Processing on Tensile Properties and Microstructure of New RAFM Steel." In 18th International Conference on Nuclear Engineering. ASMEDC, 2010. http://dx.doi.org/10.1115/icone18-29724.

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All of the RAFM steels only safely used under 550°C, that is not enough for the next reactor. An new RAFM steel was melted by non-vacuum induction melting (VIM) and electro-slag remelting (ESR), followed by hot-forging and rolling into rods and plates. In this paper, we investigated the effect of thermal ageing treatment on tensile properties of the rods and plates. The microstructure was studied by OM (optics micrograph) and scanning electron microscopy (SEM). The results showed that by using the same heat treatment process, the tensile strength of the samples was 680MPa, the total elongation

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Rižnik, Petra, and Jernej Dolinšek. "Tranzicija adolescentov s kronično boleznijo prebavil." In Adolescentna medicina. Univerza v Mariboru, Univerzitetna založba, 2023. http://dx.doi.org/10.18690/um.mf.2.2023.5.

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Število bolnikov s kroničnimi boleznimi v razvitem svetu narašča. Nekatere med njimi se razvijejo že v obdobju otroštva in mladostništva. Poleg bremena kronične bolezni in z njo povezanih zapletov je obdobje mladostništva tudi čas, ko zdravstvena obravnava prehaja od pediatra k internistu. Ob tem ne gre zgolj za premestitev bolnika od sistema, osredotočenega na otroka, do sistema, osredotočenega na odraslega, temveč za kompleksen proces, ki se začne zgodaj v času obravnave pri pediatru in stremi k pripravi bolnika na sposobnost neodvisno skrbeti zase ter pomeni postopen prenos odgovornosti s s

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Banjin, Maja, Amina Jalovčić, and Velda Smajlbegović. "CILJANA TERAPIJA I METASTATSKI MELANOM." In Okrugli sto s međunarodnim učešćem "Melanom". Akademija nauka i umjetnosti Bosne i Hercegovine, 2018. http://dx.doi.org/10.5644/pi2019.180.02.

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Melanom je globalni zdravstveni problem s kontinuiranim porastom u incidence. Rezultati tretmana metastatskog melanoma su, do skorašnjih napredovanja u terapijama, bili slabi, s medijanom ukupnog preživljavanja (OS) od 7,5 mjeseci i petogodišnjom stopom preživljavanja 6%. U kliničkim istraživanjima za metastatski melanom, selektivni inhibitori BRAF gena, vemurafenib i dabrafenib, pokazali su značajnu antitumorsku aktivnost i poboljšanje u OS i PFS kada se porede s dakarbazinom. Međutim, skoro će svaki pacijent tretiran BRAF inhibitorima imati progresiju bolesti, a tumori pokazuju reaktivacije

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Gomes, Martha Velloso Murta, Nadya Alves de Sousa Guimarães, Thais Karla Vivan, and Vinicius Xavier de Santana. "SECOND BREAST CANCER IN A WOMAN WITH GENETIC SYNDROME." In XXIV Congresso Brasileiro de Mastologia. Mastology, 2022. http://dx.doi.org/10.29289/259453942022v32s1074.

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Neurofibromatosis type 1 (NF1) is an autosomal dominant genetic disease and is the most common neurocutaneous syndrome. It results from a defect in the gene located on chromosome number 17 that produces the protein neurofibromin, involved in controlling cell growth. Women with NF1 have a higher risk of developing breast and contralateral breast cancers. There is a relationship between high estrogen receptor (ER) and worse survival, which is also affected by the low overall life expectancy of patients with neurofibromatosis. Given that data also suggest that there are genes that interact with t

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