Please create a new list with a new name; move some items to a new or existing list; or delete some items. Steel-fibre-reinforced segmental linings: State-of-the-art and completed projects Allow this favorite library to be seen by others Keep this dbv-merkblattt library private. Citations are based on reference standards. The amount of fibres need to be declared to abtain these performances. Merkblatt Technologie des Stahlfaserbetons und Stahlfaserspritzbetons.

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Sakus Emerald Group Publishing In addition, the same load level as with the conventional reinforcement alternative was also achieved.

Numerous tunnel projects around the world have been implemented using steel-fibre-reinforced concrete segmental linings in recent years. The use of steel fibres provided an elegant and rapid solution, since production of segments was scheduled to start in a short time.

Home About Help Search. Please enter recipient e-mail address es. The E-mail message field is required. Tunnel-construction methodology, which now differentiates between shotcreting and mechanised tunnelling, should firstly be examined.

The test procedure utilising statically determinate test beams provides a method suitable for conversion of the results to a design for cross-sectional capacity in the various states of construction, or for the M-N dbv-merkblart diagram, for instance.

The amount of fibres need to be declared to abtain these performances. Please dbv-mdrkblatt your name. A material resistant to aggressive environment conditions was to be used, and a service-life of years to be indicated for the segmental tunnel lining rings.

Tests using ultra-modern dv-merkblatt were performed in the context of this construction project, in order to investigate the performance of the segmental lining, and of the segment joints, in particular, under the load conditions prevailing in the tunnel. Would you also like to submit a review for sfahlfaserbeton item? The potential uses for steel-fibre-reinforced concrete in tunnel construction are many and diverse.

Each ring consisted of nine segments plus a keystone, for an inner diameter of 7. Write a review Rate this item: Extremely demanding durability requirements were defined in the invitation to tender for this project. Determination of materials properties to reveal the bending moment capacity is performed by means of deflection-controlled beam tests.

Also decisive is the selection of a tensile strength appropriate to the strength of concrete, in order to maintain the ductility of the steel-fibre-reinforced concrete. Limit the search to the library catalogue. Allow this favorite library to be seen by others Keep this favorite library private. Privacy Policy Terms and Conditions. Interest in the use of steel-fibre-reinforced concrete in tunnel construction is dbg-merkblatt as a result of the flexibility which the use of this material permits and the cost-savings achieved compared to the use of conventional reinforced-concrete solutions.

Steel-fibre-reinforced segmental linings: State-of-the-art and completed projects More like this Similar Items. However, formatting rules can vary widely between applications and fields of interest or srahlfaserbeton. You may have already requested this item. The criteria listed below assure a high-performance steel-fibre-reinforced concrete: And, in case of combination reinforcement, for example, the rebar reinforcement is better protected. Browse subjects Browse through journals Browse through conferences.

Lot T, with a length of approx. Advanced Search Find a Library. Factory-produced segmental lining transported to the site are generally used in mechanised tunnel construction. Careers and apprenticeships Equal opportunities Vacancies Apprenticeships. Early application of the initial support, combined with the strength of steel-fibre-reinforced concrete at young age, reduces ground disintegration phenomena and, as a corollary, also overburden pressure, achieving a significantly better stress state.

In the case of steel-fibre-reinforced concrete for shotcrete, the steel fibres are added to the basic shotcrete concrete mix. The load combination of bending moment and compressive normal force is governing for the design in the ultimate Limit state. Merkblatt Technologie des Stahlfaserbetons und Stahlfaserspritzbetons. Test specimen are generally tested by means of deflection-controlled test setups. Preview this item Preview this item.

The drafting of the concrete recipe was a real concrete technology challenge, since it was necessary to meet both elevated durability requirements and to sthlfaserbeton the aggressiveness of the groundwater in dbv-merbklatt geology. Assessment at international level indicates that reference projects using steel-fibre-reinforced concrete as a permanent load-bearing support element remain far too rare in Germany.

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