High performance concrete recommended extensions to the model code 90 research needs

High performance concrete recommended extensions to the model code 90 research needs

Author: FIB – International Federation for Structural Concrete

Publisher: FIB - International Federation for Structural Concrete

Published: 1995-07-01

Total Pages: 57

ISBN-13: 2883940312

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The report has been prepared by the Joint Working Group on High Strength/High Performance Concrete, set up by CEB and FIP and comprising 15 experts from Europe, North America, Japan and Australia. Part one 'Recommended Extensions to Model Code 90' identifies the lacuna in existing regulations and proposes supplementary or alternative solutions to be applied with caution for concrete grades above C 50. In order to facilitate its use the report is edited in two columns following the numbering of the CEB-FIP Model Code 1990. It will be presented for approval to the 30th CEB Plenary Session in Berlin, September 1995. Part two identifies the research needs resulting from those clauses of Model Code 90 which needed amendments. Also more basic research needed for a better understanding of mechanical, physical and chemical processes which cannot be connected directly to a short-term application has been included."--Back cover.


Lightweight Aggregate Concrete - Recommended extensions to Model Code 90, Identification of research needs & Case studies

Lightweight Aggregate Concrete - Recommended extensions to Model Code 90, Identification of research needs & Case studies

Author: fib Fédération internationale du béton

Publisher: fib Fédération internationale du béton

Published: 2000-03-01

Total Pages: 114

ISBN-13: 2883940487

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"In 1993, the CEB Commission 2 Material and Behavior Modelling established the Task Group 2.5 Bond Models. It's terms of reference were ... to write a state-of-art report concerning bond of reinforcement in concrete and later recommend how the knowledge could be applied in practice (Model Code like text proposal)... {This work} covers the first part ... the state-of-art report."--Pref.


System-Based Vision For Strate

System-Based Vision For Strate

Author: Franco Bontempi

Publisher: CRC Press

Published: 2003-01-01

Total Pages: 728

ISBN-13: 9789058096302

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Objective of conference is to define knowledge and technologies needed to design and develop project processes and to produce high-quality, competitive, environment- and consumer-friendly structures and constructed facilities. This goal is clearly related to the development and (re)-use of quality materials, to excellence in construction management and to reliable measurement and testing methods.


Punching of Structural Concrete Slabs

Punching of Structural Concrete Slabs

Author: fib Fédération internationale du béton

Publisher: fib Fédération internationale du béton

Published: 2001-01-01

Total Pages: 314

ISBN-13: 2883940525

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Punching is considered to be one of the most difficult problems in structural concrete design and mechanical models or theoretical analyses were developed rather late in the history of concrete research attempts. This fib Bulletin reviews the development of design models and theoretical analyses since the CEB Bulletin 168 Punching Shear in Reinforced Concrete - State-of-the-Art Report published in 1985. The role of the concrete tensile strength was specially addressed. In this respect the present bulletin is also following-up the CEB Bulletin 237 Concrete Tension and Size Effects - Utilisation of concrete tension in structural concrete design and relevance of size effect - Contributions from CEB Task Group 2.7 published in 1997. Apart from new theoretical developments a comprehensive databank for comparisons with experimental evidence is included. About 400 punching tests were critically reviewed and evaluated in a consistent manner. This is thought to be the first step towards a generally agreed selection of reliable tests. The evident value of such a data bank is illustrated by comparisons carried out between the data and some of the analytical proposals as well as empirical code formulas. List of contents : (1) Introduction, (2) Code equations, (3) Mechanical models for punching, (4) New developments for mechanical models, (5) Numerical investigations, (7) Comparison of mechanical models and test results of slabs without shear reinforcement, (8) Comparison of code rules and tests of flat slabs without shear reinforcement, (9) Comparison of codes, models and tests of flat slabs with shear reinforcement, (10) Experimental investigations, (11) Summary and conclusions, References, Appendices : (I) Databank on slabs without shear reinforcement, (II) Databank on slabs with shear reinforcement, (III) Comparison of test data with code rules, (IV) Comparison of test data with selected models, (V) Notations.