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Monday, May 11, 2020 | History

1 edition of Punching shear resistance of lightweight concrete offshore structures for the Arctic found in the catalog.

Punching shear resistance of lightweight concrete offshore structures for the Arctic

Punching shear resistance of lightweight concrete offshore structures for the Arctic

literature review

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  • 1 Currently reading

Published by U.S. Dept. of Commerce, National Bureau of Standards in Gaithersburg, MD .
Written in English

    Subjects:
  • Lightweight concrete,
  • Reinforced concrete,
  • Offshore structures,
  • Shear (Mechanics)

  • Edition Notes

    StatementDavid I. McLean ... [et al.]
    SeriesNBSIR -- 86-3388
    ContributionsMcLean, David I, United States. National Bureau of Standards
    The Physical Object
    Paginationviii, 130 p. :
    Number of Pages130
    ID Numbers
    Open LibraryOL14848970M

    PLAIN AND REINFORCED CONCRETE ­ CODE OF PRACTICE (Fourth Revision) Tenth Reprint APRIL (IncludingAmendments No. I and 2) Analysis of Structure 52 Shear 52 Deflection 52 7. IS PAGB Enhanced Shear Strength of Sections Close to Supports B-6 TORSION B General B CriticalSection. (see Rules for Classification and Construction, I - Ship Technology, Part 0 - Classification and Surveys). Reproduction by printing or photostatic means is only permissible with the consent of Germanischer Lloyd Aktiengesellschaft. Published by: Germanischer Lloyd Aktiengesellschaft, Hamburg Printed by: Gebrüder Braasch GmbH, Hamburg.

    Figure 1: SCS sandwich composite structure infilled with concrete. Figure 2: Gravity based arctic offshore caisson structure using SCS sandwich. In this paper, multiple vaults of SCS sandwich shell were designed to resist ice contact pressure. Headed shear studs or novel J-hook connectors were introduced as mechanical. Our aim is to enable all those involved in the design, use and performance of concrete and masonry to realise the potential of these materials. The Concrete Centre, part of the MPA Mineral Products Association (MPA) is the trade association for aggregates, asphalt, cement, concrete, dimension stone, lime, mortar and silica sand industries.

    The gravity based structure (GBS) with external Steel–Concrete–Steel (SCS) sandwich ice-resistant wall has been developed for the Arctic oil and gas drilling. This paper firstly reported the experimental studies on the mechanical properties of steel and concretes under Arctic low temperature. Finite element analysis of curved lightweight steel-concrete-steel sandwich panel subjected to lateral loads *Zhenyu Huang1), d Liew2), which are punching shear failure, flexural failure, separation For arctic offshore application, the structures require high impact resistance, high.


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Punching shear resistance of lightweight concrete offshore structures for the Arctic Download PDF EPUB FB2

Get this from a library. Punching shear resistance of lightweight concrete offshore structures for the Arctic: 1/scale model study. [David I McLean; United States.

National Bureau of Standards.;]. Get this from a library. Punching shear resistance of lightweight concrete offshore structures for the Arctic: literature review. [David I McLean; United States. National Bureau of Standards.;]. R3S RESEARCH INFORMATION CENTER NBSIR PUNCHINGSHEARRESISTANCEOF LIGHTWEIGHTCONCRETEOFFSHORE STRUCTURESFORTHEARCTIC: LITERATUREREVIEW David The test will be on model and full-scale slabs and shells proposed for Arctic offshore structures, with and without pre-stressing and special shear reinforcement.

The objective of this study will be used to determine the reliability and establish more effective criteria for Arctic concrete structures. This paper describes the results of a - joint industry project initiated to improve the understanding of the punching shear behavior of typical shear-reinforced concrete panels likely to be used for arctic concrete platforms.

Prior tests have dealt mainly with non-shear reinforced and lightly shear Cited by: 6. Provisions for the use of structural lightweight aggregate concrete are included in British codes of practice, but limitations are applied as to the design values that may be used. This Paper is concerned with the strength in shear of slabs subjected to punching, which is limited in the codes to 80% of that for normal-weight concrete of the same compressive strength.

Punching shear resistance of the top steel shell or plate. V c, V s. Punching shear resistance contributed by the concrete and connectors, respectively. Diameter of the connectors in SCS sandwich structure. e h. The distance from the inner shaft to the outer tip of the connector, and 3d c ≤ e h ≤ d c.

f ck, f ckT, f cka. More recently, SCS sandwich structures are being considered for the outer shell of Arctic offshore structures as ice resistant wall to resist impact loads due to ice floes [8]. Fig. 2(a) shows the. The main objective of this sheet is to evaluate the effect of design tje RC slab for punching shear strength.

The increasing of the punching shear strength and deformation capacity when subjected to patch load was studied here. An experimental study was carried out on reinforced concrete slabs under a central patch load with circular, square. Twelve specimens of reinforced concrete slab-column connections were tested to investigate fire resistance of punching shear.

Half of the specimens were tested at room temperature to determine punching shear strength. Half were tested for fire resistance.

Develop ultra lightweight cement composite (ULCC) for offshore and onshore structures. • Develop double skin composite (DSC) elements for Arctic offshore structures with ULCC. • Report tests on flat slabs with ULCC under localized ice loads. • Report tests on.

Lightweight. Lightweight concrete. concrete in floatingfloating High resistance to accidental loads • burg Summary • • 25 % of the world’s undiscovered reserves of oil and gas are believed to be in the Arctic • • Concrete structures have excellent characteristics: –.

This investigation was a continuing study of peripheral (punching) shear strength of precracked, biaxially tensioned, orthogonally reinforced concrete slabs. This research was motivated by the need to determie the strength of a reinforced concrete containment vessel wall when subjected to combined internal pressure and punching shear loads normal to the wall.

Lightweight steel–concrete–steel sandwich composite shell subject to punching shear The development of Arctic oil and gas fields requires high strength structures that can resist critical loads in extreme environment. It can also give the ultimate punching shearing load when the punch angle is smaller than the angle of friction of concrete.

Simplified expressions for the ultimate strength of a concrete slab in punching shear with different degrees of simplification are also suggested for practical use. Punching strength of reinforced concrete at slabs without shear reinforcement formation of bending and shear cracks to divide the slab into seg - ments.

In case of the selected concrete slab test configuration the main factor for the total load capacity determination is the punching shear failure. The slab load capacity was determined based on the above mentioned approach included in EC2.

Punching shear may be the result of a concentrated load or reaction acting on a relatively small area. To achieve this, a flat-plate system using high-strength lightweight concrete has been proposed. To solve the weakness of the brittle failure of lightweight concrete as well as punching shear of the flat-plate system, this study developed a new shear reinforcement method.

It was concluded that high strength and durable lightweight concrete satisfying requirements for arctic concrete structures could be obtained by using lightweight aggregate with low moisture content and utilizing condensed silica fume as a mineral admixture.

Steel-concrete-steel sandwich system in Arctic offshore structure: Materials, experiments, and design Yan, Jia-Bao, Liu, Xuemei, Liew, Jat-Yuen, Qian, Xudong, & Zhang, Min-Hong () Steel-concrete-steel sandwich system in Arctic offshore structure: Materials, experiments, and design.

RC Spreadsheets Version 4C The popular RC-spreadsheets package version 4 was issued following the amendment to the UK National Annex to Eurocode 2 in December These Excel spreadsheets are intended as aids for design to both Eurocode 2 and BS All but one of the test specimens used high-strength lightweight aggregate (LWA) concrete.

INTRODUCTION Offshore Arctic and Sub-Arctic concrete platforms are subject to very high local loads from massive ice features, and must be properly reinforced in order to prevent punching shear .Seismic Performance of Lightweight Concrete Structures resistance feature in important structures.

uction bending moment is lower by 22% and shear force by 18% for lightweight concrete when compared to normal weight concrete.