Book's Casket

Description of the Book's Casket

The four volumes are developed around the field-contracting experience of TEC.INN. S.r.l. on the applications of retrofit and structural strengthening through special technologies in the last 15 years.
The first important retrofit in 1986/87 concerned the restoration of the extra compound Headquarter of the Italian Ambassee in Mogadiscio – Somalia, using the béton plaqué technique. During the first years, until 1995, several applications using the béton plaqué technique have been realized.
Since 1992 there has been a gradual shift in use from steel, as strengthening material resisting to tensile stresses, to FRP, firstly using glass then carbon and lastly aramid. During the following years, since September 1997, TEC.INN. S.r.l. saw a remarkable development on the use of advanced composite materials for the retrofit and strengthening of buildings that have been damaged by the earhquake shocks which interested Umbria and Marche.


Volume 1
General Knowledge


Volume 2
Masonry Structures


Volume 3
R.C. and P.C. Structures


Volume 4
Research and Development

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General Knowledge

FRP materials are the modern answer to the needs of new structural and durable materials, for the conservation and consolidating of the built environment.
The present work intends to contribute to fill in the gap between the technical knowledge and the use of the design guide lines from professionals.

Angelo Di Tommaso
Ph.D., P.E.,

Professor of Civil Engineering at the University of Venice-Italy

Masonry Structures

The major difference between strengthening reinforced concrete and masonry structures relies on the fact in general the objective is not to strengthen a single section like it is done is RC applications but rather to look at the structure at its global performance, trying to prevent the forming of cracks and formation of plastic hinges that can cause the structure to collapse or to function properly.
From this prospective, FRP materials are applied to provide masonry members with an additional tensile strength of which they are not supplied in great manner and overall considered deficient.

Antonio Borri
Ph.D., P.E.

Professor of Civil Engineering at the University of Perugia-Italy

R.C. and P.C. Structures

The volume starts with a description of the fundamental principles for designing reinforced concrete elements strengthened with externally bonded FRP systems, starting from examples using the Béton plaqué technique and then moving to the real core of the collection: strengthening and retrofitting reinforced and prestressed concrete structures using FRP. The reader will discover a summary of the Italian history on externally bonded FRP applications from the first application ever performed to the most recent ones.

Antonio Nanni, Ph.D., PE
V&M Jones Professor of Civil Engineering
University of Missouri - Rolla (USA)

Research and Development

Research is the only way to promote innovative technologies and experimental data are one of the most important references for new engineering theories. It is then obvious that we look at laboratory and field testing as a tool for developing innovative solutions to employ advanced composite materials in civil engineering applications.
The experimental data obtained by laboratory and field testing allow to numerically model the problem and provide important guidelines for the design of real applications with such materials.
Several TEC.INN.’s applications have followed this trend and have surely provided to develop the knowledge that now days has led to the publication of several guidelines for the design with advanced composite materials.


Angelo Di Tommaso
Ph.D., P.E.,

Professor of Civil Engineering at the University of Venice-Italy

As a consequence of this catastrophic natural circuit several and innovative testing research campaigns have been started FRP for strengthening, restorating and retrofitting of civil, industrial, and historical-artistic-monumental structures.The volumes represent the first and unique worldwide organic work studies where FRP have been successfully installed which reports a lot of examples of case applications of FRP.