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PUBLICATIONS


This page acknowledges Paolo Rugarli's publications in the field of structural engineering, while working at Castalia srl, since 1991. Only the papers and or the books published are here collected. By reading these works you may get an idea not only of the Author's opinion about several problems in current engineering practice, but also of the work done by Castalia srl in the last (more than) 20 years.




BOOKS

Steel Connection Analysis
" Steel Connection Analysis", Paolo Rugarli
John Wiley & Sons - Oxford, 2018


This book is about steel connection analysis. The matter is exposed using an innovative approach. The book describes how the checks of the connections between steel members (bolted and welded), can be faced by general methods. The book is the outcome of a research started at the end of the 90s (see CSE). The chapters are:
1. Introduction
2. Jnodes
3. A model for connection
4. Renodes
5. The pillars of connection analysis
6. Connectors: weld layouts
7. Connectors: bolt layouts and contact
8. Failure modes
9. Analysis: hybrid approach
10. Analysis: pure fem approach
11. Conclusions
Appendix 1: conventions and recalls
Appendix 2: tangent stiffness matrix of fillet-welds
Appendix 3: tangent stiffness matrix of bolts in shear

Please look at the page of the publisher for more extended information. Or to the local page with basic information.


RIGHTS AVAILABLE: none

Validazione Strutturale
"Validazione Strutturale - Volume 1: aspetti generali", Paolo Rugarli
EPC EDITORE - Roma, 2014 ("Structural Validation - Vol.1: general aspects")


This book is the first of two volumes totally dedicated to structural validation. This first one debates on general matters connected to an effective and aware activity of validation, like probability and also cognitive, organizational and social factors connected to the existence of errors in structural engineering, as well as a general description of the usage of the available techniques able to find them out.

Here you find the link to the Table of content and to the book presentation (Italian).

The book has 656 pages (ISBN 978-88-6310-563-6). Can be bought directly from the Publisher.


RIGHTS AVAILABLE: all but Italian

Structural Analysis with Finite Elements
"Structural Analysis with Finite Elements", Paolo Rugarli
Thomas Telford LTD - London, 2010


This is the English version of the book "Calcolo Strutturale con gli Elementi Finiti" (Rome 2003), published in May 2010 by London publisher Thomas Telford (that is the editorial branch of ICE, Institution of Civil Engineers).


RIGHTS AVAILABLE: all but Italian and English

Steel Structures Checks
"Calcolo di Strutture in Acciaio", Paolo Rugarli
EPC EDITORE - Roma, 2008 ("Steel Structures Checks to Eurocode 3")


This book, published by EPC libri in April 2008, is an introduction to Eurocode 3 (EN 1993-1-1) bundled with a straight-beams software (simple or continuous) named CESCOSTEEL (a limited version of CESCO PLUS). The book is divided in several parts:
1) Introduction to the standard and to the checks;
2) Worked examples;
3) Software guide;
4) Benchmarks referred to Eurocode 3 (also available in this website);
5) References and annexes.

Here you find the link to Table of content and to the book presentation (Italian).

The book has 480 pages (ISBN 978-88-6310-010-5). Can be bought directly from the Publisher. It is also planned a possible translation into English


RIGHTS AVAILABLE: all but Italian

Norme Tecniche per le Costruzioni "Technical Standards for Structural Constructions", edited by Paolo Rugarli
EPC EDITORE - Roma, 2008 (1ed) and 2009 (2ed)


This book, published by EPC libri in March 2008, is an edition of the Italian Standards named NTC 2008 (DM 14-1-2008) with a wide analytic index, and bundled with a software, named NTCSISMA, useful to compute seismic spectra parameters (here in Italy PGA depends on latitude and longitude of the site of the construction. Besides some probable errors in the text of the standards (some of them have been amended after the publication of the book, namely the so-called room effect

Here you find the link to the extended TOC and to the book presentation.

The book has 768 pages (ISBN 978-88-6310-016-7). It may be purchased by the Publisher directly.


RIGHTS AVAILABLE: no rights available

cross-section classification "Strutture in acciaio. La classificazione delle sezioni. Commento all'Eurocodice 3", Paolo Rugarli
EPC EDITORE - Roma, 2007 ("Steel structures, Cross-sections classification. Comment to Eurocode 3")


This book, published by EPC libri in March 2007, is entirely focused on the cross-section classification problem, according to Eurocode 3. The book also embeds a software, named CLEI, which is able to classify I- and H- cross-sections under mixed internal actions (axial force plus biaxial bending). CLEI uses the algorithms introduced in SARGON starting from 1992. Here the volume chapters (the book is in Italian):
1) Foreword
2) Overview of the problem
3) Classification, what is and how it works
4) Classification of I- or H- cross-sections under mixed internal actions according to Eurocode 3
5) Tables of design maps
6) Software guide
7) Worked examples of the design-map use 8) References

Here you find a link to the Extended TOC (Italian) and to the presentation of the book content.

The book has 254 pages (ISBN 88-8184-461-6). It may be bought directly by the Publisher.


RIGHTS AVAILABLE: all but Italian

wood structures to Eurocode 5 "Calcolo di strutture in legno", Paolo Rugarli
EPC EDITORE - Roma, 2006 ("Wood Structures Checks to Eurocode 3")


This book, published by EPC in October 2006, is an introduction to Eurocode 5 bundled with a software (a limited version of CESCO PLUS). Here the chapters: 1) Introduction 2) How to check members 3) Software guide 4) Worked examples

Here you find the link to the extended TOC and to the book presentation.

The book has 221 pages (ISBN 88-8184-435-4). It may be bought directly by the Publisher.


RIGHTS AVAILABLE: all but Italian

modal analysis "Analisi Modale Ragionata", Paolo Rugarli
EPC EDITORE - Roma, 2005 ("Reasoned Modal Analysis")


This book, published by EPC libri in October 2005, is fully related to modal analysis. Here the chapters:
1) Introduction
2) Single degree of freedom oscillators
3) Multiple degrees of freedom oscillators (modal analysis)
4) Stiffness-side modelling
5) Mass-side modelling
6) Damping-side modelling
7) Hints about numerical techniques
8) Practical analysis of the modal response
9) Response-spectrum analysis
10) References
Annexes:
i) Natural periods
ii) Minimum glossary
iii) Main symbols
iv) Symbols, notation and computational recalls
v) The software in CD (sargon lite)

Here you find the link to the extended TOC and to the book presentation.

The book has 512 pages (ISBN 88-8184-382-X).


RIGHTS AVAILABLE: all but Italian

Book - Calcolo Strutturale con gli Elementi Finiti "Calcolo Strutturale con gli Elementi Finiti", Paolo Rugarli
EPC EDITORE - Roma, 2003


This book, published by EPC libri in September 2003, is a serious effort to explain in an easy-to-understand fashion how the Finite Element Method works. Here are the Chapters of the book:
1) Overview
2) Elasticity: special formulations
3) The finite element
4) Assembly
5) The actions
6) The constraints
7) Solution and stress-recovery
8) Error evaluation
9) The structural problems
10)The finite elements most used
11) Modelling problems
12) The checking problem
13) References
Annexes:
i) Calculus recalls
ii) Theory of elasticity recalls
iii) Main symbols
iv) Minimum glossary
v) CS content (Sargon lite)

Here you find the detailed link to the extended TOC and to the book content presentation.

The book has 440 pages (ISBN 88-8184-295-5), and it is in Italian.


RIGHTS AVAILABLE: all but Italian and English

 



PAPERS

"Classification of I- or H- shaped cross-sections under mixed internal actions", Paolo Rugarli
Journal of Constructional Steel Research, 65, 1597-1606, 2009

This paper, published in the important peer-reviewed international magazine JCSR, explains the research work done (in 1993) about the cross-section classification problem, and the "reclasses" classification method, proposed by Paolo Rugarli.

 

"Automatic checks of steel connections designed by freely placing components", Paolo Rugarli
Acta XXII Congress CTA, Padova, September 2009

This paper is about steel connections calculation and presents the results got by program CSE.

 

"Prediction of the load carrying capacity of slender cross-section members under eccentric axial load. Part 1: the approach", Claudio Bernuzzi, Paolo Rugarli
Costruzioni Metalliche, Jul-Aug-2009 (English)

This paper presents a new method to compute load carrying capacity of thin-walled, cold-formed cross-sections. The paper also discusses the current EN 1993-1-3 approach.

 

"Prediction of the load carrying capacity of slender cross-section members under eccentric axial load. Part 2: validation", Claudio Bernuzzi, Paolo Rugarli
Costruzioni Metalliche, Nov-Dec-2009 (English)

This is the second part of the previous paper, where results got are compared with experimental ones, showing quite good results.

 

"Simplified formulae to flexural and lateral-torsional buckling checks according to Eurocode 3 (EN 1993-1-1), Method 2", Paolo Rugarli
Acta XXII Congress CTA, Padova, September 2009

This paper presents an alternative way, very useful, to write the formulae for flexural and lateral-torsional buckling checks as required by Eurocode 3.

 

"Zones, Grids or... Rooms?", Paolo Rugarli
Ingegneria Sismica, 1/2008

This paper examines the new Italian seismic standards rules (NTC 2008) to determine design spectra. The paper shows that the standard had several important problems of application, and that the precision required by this standard is completely illusive. The "room-effect", that is the abrupt up to 20% change of design PGA from one room to another of the same flat - due to clear errors in the standard -, is here acknowledged for the very first time.

 

"Limit states load combinations: the un-told of the standards", Paolo Rugarli
Ingegneria Sismica 2/2004

This important paper shows that the combination rules used by the Italian standard and by Eurocodes embed not safe-side assumptions. The paper is a critic to the presently adopted way to apply Load and Resistance Factor design (limit states).

 

"Le magnifiche sorti e progressive", Paolo Rugarli
L'Edilizia n° 133 (2004)

This paper refers to the previous one, disclosing to a wide public its main results. It also reconnects to the public debate which followed Italian Ordinances 3274/2003 e 3316/2003, issued by Silvio Berlusconi's Prime Minister office.

 

"In margine all'Ordinanza 3274", Paolo Rugarli
Ingegneria Sismica, 3/2003

This paper has been published by the Italian technical magazine Ingegneria Sismica, and clearly enumerates several technical reasons why Ordinance 3274 must be criticized.

 

"Riflessioni e osservazioni sulla nuova Ordinanza 3274", Paolo Rugarli
Il Giornale dell'Ingegnere n°18/2003, pagg 8-9

This paper was published by "Giornale dell'Ingegnere" and as well as the previous is critic toward Ordinance 3274. The paper was one of the very first public act to criticize the standard which was later amended by 122 modifications.

 

"Software di calcolo", Paolo Rugarli
Manuale dell'Ingegnere "Colombo", 84^ed., Hoepli

This work, written in October 2002, is an overview of the problems related to structural software use: the reliability, the errors, the conversion of a standard into a software program, the mutual relationship between who writes the Law, the Software Developer, and the User.

 

"Elastic and Plastic Flexural Properties. Automatic computation of generic cross-sections", Paolo Rugarli
Costruzioni Metalliche, 4/1998 (link to English version)

This paper describes a general method to compute elastic and plastic flexural properties of generic cross-sections. The methodologies shown in the paper are used by all the programs of Castalia, and namely by the program SAMBA.

 

"La classificazione secondo Ec3 dei profili ad I sottoposti a sollecitazioni miste, Paolo Rugarli
Acta Congress C.T.A., October 1993

This method is used by the automatic Sargon. automatic Eurocode 3 checker. The paper is important because it shows that yet in 1993 problems due to the real applicability of the formulae to classify cross-sections according to Eurocode 3 were pointed out. The paper deals with axial force plus biaxial bending stress states and proposes a method which almost 20 years later has been published in JCSR (see above).

 

"Software orientati alla comunicabilità ed al controllo dei dati nella ingegneria delle strutture", Paolo Rugarli
Acta Congress C.T.A. October 1991

This paper was written at the beginning of Castalia activity. It pointed out some important problems and issues in structural-software development at that time.

 


PRODUCTS:

C.S.E.

Sargon

Samba

 
 
 
 
 
 
 
 
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