Dr Juan Sagaseta

Research Interests

Structural modelling

• Modelling of structural concrete, steel, glass and composite steel/concrete solutions
• Non-linear finite element modelling
• Compression Field and Stress Field theories
• Strut-and-tie method

Development of analytical models for structural concrete design/analysis

• Discrete crack modelling and fracture mechanics
• Aggregate interlock action and crack development
• High-strength and high-performance concrete
• Fibre reinforced concrete

Shear and punching shear in reinforced concrete structures

• Development of improved shear and punching shear design methods
• Non-symmetrical punching shear in flat slabs and slab bridges
• Shear strengthening techniques using CFRP and composite materials

Structural engineering

• Innovative methods of structural inspections based on digital engineering
• Development of design equations for new modular construction systems

Extreme loading

• Development of analytical models for impact and blast loading in RC structures
• Testing of structural elements under impact loading
• Influence of loading rates on material and structural behaviour
• Progressive collapse analysis in RC structures

Teaching

Module coordinator in
• Year 4 (MEng/MSc) – Structural Mechanics and FE (ENGM053)
• Year 4 (MEng/MSc) – Concrete Building Design (ENGM041)
• Year 4 (MEng/MSc) – Building Information Modelling (ENGM281); lectures delivered by experts from industry
• Year 3 – Structural Engineering (ENG3176)
• Supervision/co-supervision of MSc and UG final projects
• Supervision/co-supervision of PhD projects

Departmental Duties

• Coordinator of the University of Surrey/Institution of Civil Engineers Scholarship Scheme (refer to website).
• Corporate member of the ICE Thames Valley Branch Committee (South East England).
• Academic member of the Civil and Environmental Engineering Industrial Advisory Board at University of Surrey.

More...

Affiliations to professional bodies

2011 – Institution of Civil Engineers (MICE), UK
2011 – European Federation of National Engineering Associations (FEANI)
2011 – Asociación de Ingenieros de Caminos, Canales y Puertos (AICCP), Spain
2003 – CICCP (Spanish professional body of Civil Engineers), Spain

Contribution to scientific and technical working groups

fib Working Party 2.2.1 Shear in beams
fib Working Party 2.2.3 Punching and shear in flat slabs
Concrete Industry Eurocode 2 Group (CIEGmkII), UK

Editorial boards

Member of the Editorial Board for Magazine of Concrete Research (ICE publishing)
Guest editor for special publications on robustness (Elsevier, fib, Hindawi)
Acts as reviewer in international technical journals (e.g. ACI Structural Journal, Engineering structures, Proceedings of the ICE, Hormigon y Acero)

Affiliation to scientific and technical societies

fib (Fédération Internationale du Béton)
British Precast Concrete Federation (University of Surrey associate member)
ACHE (Scientific Association of Structural Concrete), Spain
Member of the International Masonry Society

Awards and Honours

2012 – Magazine of Concrete Research Award (ICE publishing) for best paper of the year
2011 – fib Achievement Award (research category)
2006 – Scholarship for international postgraduate studies (Fundación Caja Madrid)
2002 – Nomination for The National Society of Collegiate Scholars (USA)
2002 – Outstanding Service Award from ASCE for the UNCC concrete canoe team

Contact Me

E-mail:
Phone: 01483 68 6649

Find me on campus
Room: 31 AA 03

Publications

Peer reviewed journal papers

Sagaseta J, Ulaeto N. (2018) 'Discussion of paper Behaviour of reinforced concrete slabs under low-velocity impact by Y. Xiao, B. Li and K. Fujikake'. ACI Structural Journal. (accepted for publication in issue March-April 2018)

Sagaseta J, Francis P. (2018) 'Out-of-plane shear strength of steel-concrete sandwich panels'. fib bulletin: International workshop on beam shear, Zurich, Switzerland (accepted for publication).

Sagaseta J, Olmati P, Micallef K, Cormie D. (2017) 'Punching shear failure in blast-loaded RC slabs and panels'. Engineering Structures, 147, pp. 177-194. (doi: 10.1016/j.engstruct.2017.04.051) (Open access link)

Hicks M, Sagaseta J. (2017) 'Structural appraisal of existing masonry quadripartite vaults'. Proceedings of the ICE - Structures and Buildings, pp. 1-13. (doi: 10.1680/jstbu.16.00184)

Olmati P, Sagaseta J,Cormie D, Jones AEK. (2017) 'Simplified reliability analysis of punching in reinforced concrete flat slab buildings under accidental actions'. Engineering Structures, 130, pp. 83-98. (doi: 10.1016/j.engstruct.2016.09.061 ) (Open access link)

Sagaseta J, Ulaeto N, Russell J. (2017) 'Structural robustness of concrete flat slab structures'. paper accepted for publication in fib/ACI Special Publication (SP), fib bulletin 81. (accepted for publication and with the editorial team) (Full text is available at epubs.surrey.ac.uk/812170/)

Fernández Ruiz M, Muttoni A, Sagaseta J. (2015) 'Shear strength of concrete members without transverse reinforcement: A mechanical approach to consistently account for size and strain effects'. Engineering Structures, 99, pp. 360-372. (doi: 10.1016/j.engstruct.2015.05.007 )

Collings D,Sagaseta J. (2015) 'A review of arching and compressive membrane action in concrete bridges'. Proceedings of the Institution of Civil Engineers - Bridge Engineering, 169 (4), pp. 271-284. (doi: 10.1680/bren.14.00039 )

Sagaseta J, Tassinari L, Fernández Ruiz M, Muttoni M. (2014) 'Punching of flat slabs supported on rectangular columns'. Engineering Structures, 77, pp. 17-33. (doi: 10.1016/j.engstruct.2014.07.007)

Micallef K, Sagaseta J, Fernández Ruiz M, Muttoni A. (2014) 'Assessing punching shear failure in reinforced concrete flat slabs subjected to localized impact loading'. International Journal of Impact Engineering, 71, pp. 17-33. (doi: 10.1016/j.ijimpeng.2014.04.003) (Open access link)

Sagaseta J. (2013) 'The influence of aggregate fracture of the shear strength of reinforced concrete beams: an experimental and analytical research'. Structural Concrete, 14 (4), pp. 401-414. (doi: 10.1002/suco.201200015)

Fernández Ruiz M, Sagaseta J, Muttoni A. (2011) 'The critical shear crack theory as a physical model for punching shear design and its implementation into new Model Code 2010'. Hormigón y Acero, Madrid, Spain (in Spanish), 63 (263), pp. 49-63. (Free access at Hormigon y Acero, ACHE)

Bukhari IA, Vollum RL, Ahmad S, Sagaseta J. (2013) 'Shear strengthening of short span reinforced concrete beams with CFRP sheets'. The Arabian Journal for Science and Engineering (AJSE), Saudi Arabia, 38 (3), pp. 523-536. (doi: 10.1007/s13369-012-0333-z)

Sagaseta J, Muttoni A, Fernández Ruiz M, Tassinari L. (2011) 'Non-axis-symmetrical punching shear around internal columns of RC slabs without transverse reinforcement'. Magazine of Concrete Research, 63 (6), pp. 441-457. (doi: 10.1680/macr.10.00098) (Free access ICE virtual library)

Sagaseta J, Vollum RL. (2011) 'Influence of aggregate fracture on shear transfer through cracks in reinforced concrete'. Magazine of Concrete Research, 63 (2), pp. 119-137. (doi: 10.1680/macr.9.00191) (Full text is available at epubs.surrey.ac.uk/713657/)

Sagaseta J, Vollum RL. (2011) 'Influence of beam cross-section, loading arrangement and aggregate type on shear strength'. Magazine of Concrete Research, 63 (2), pp. 139-155. (doi: 10.1680/macr.9.00192) (Full text is available at epubs.surrey.ac.uk/713658/)

Sagaseta J, Vollum RL. (2010) 'Shear design of short span beams'. Magazine of Concrete Research, 62 (4), pp. 267-282. (doi: 10.1680/macr.10.00098) (Full text is available at epubs.surrey.ac.uk/713660/)

Bukhari IA, Vollum RL, Ahmad S, Sagaseta J. (2010) 'Shear strengthening of reinforced concrete beams with CFRP'. Magazine of Concrete Research, 62 (1), pp. 65-77. (doi: 10.1680/macr.2010.62.4.267) (Full text is available at epubs.surrey.ac.uk/713661/)

Sagaseta J, Vollum RL. (2009) 'Non-linear finite element analysis of shear critical high-strength concrete beams'. Architecture Civil Engineering Environment (ACEE), 2 (4), The Silesian University of Technology, pp. 95-106. (Open access link)

Peer reviewed conference papers

Parisi F, Adam JM, Sagaseta J, Lu X. (2017) 'Review of experimental research on progressive collapse of RC structures'. In IF CRASC'17: IV Convegno di Ingegneria Forense, Rome, Italy, Vol. 2.

Ulaeto N, Sagaseta J. (2017) 'Numerical modelling of symmetric and asymmetric punching and post-punching shear responses of RC '. In 11th European LS-DYNA Conference 2017, Salzburg, Austria. (Full text is available at epubs.surrey.ac.uk/841274/)

Collings D, Sagaseta J. (2015) 'Analysis of test database for RC structures and compressive membrane action '. ACI European Bridge Conference & Exhibition 2015, Edinburgh, Scotland.

Sagaseta J, Muttoni A, Fernández Ruiz M. (2013) 'Towards developing mechanical punching shear models for flat slabs subjected to impact and blast loading'. Proceedings of fib International Symposium 2013, Tel-Aviv, Israel, pp. 581-584.

Clement T, Muttoni A, Sagaseta J. (2013) 'Punching shear strength of PC slabs'. Proceedings of fib International Symposium 2013, Tel-Aviv, Israel, pp. 289-292.

Sagaseta J, Tassinari L, Fernández Ruiz M, Muttoni A. (2011) 'New provisions for punching shear in Model Code 2010 based on the critical shear crack theory'. Proceedings of fib International Symposium 2011, Prague, Czech Republic, Vol. 1, pp. 155-158.

Sagaseta J, Fernández Ruiz M, Muttoni A. (2009) 'Non-symmetrical punching of flat slabs and slab bridges without transverse reinforcement'. Proceedings of fib International Symposium 2009, London.

Sagaseta J, Vollum RL. (2009) 'Relative crack displacements in high strength concrete beams failing in shear'. Proceedings of fib International Symposium 2009, London.

Sagaseta J, Vollum RL. (2008) 'Non-linear finite element analysis of shear critical high-strength concrete beams'. Proceedings of AMCM 6th International Conference, Lodz, Poland, pp. 9-11.

Sagaseta J, Vollum RL. (2008) 'Strut-and-tie modelling of short span beams'. Proceedings of fib International Symposium 2008, Tailor Made Concrete Structures, Amsterdam, pp. 19-22.

Sagaseta J, Vollum RL. (2007) 'Influence of aggregate fracture in shear design of HS concrete structures'. Concrete Communication Symposium (The Concrete Centre), Sheffield, UK, pp. 29-30.

Other publications

Ulaeto N, Sagaseta J. (2017) 'Numerical and analytical modelling of localized impact load in RC panels and slabs'. Fire and blast information group (FABIG), 70, pp. 56-63. (Full text is available at epubs.surrey.ac.uk/813516/)

Sagaseta J. (2015) 'Why buildings collapse'. EPSRC Impact Acceleration Account Review University of Surrey 2014-15, pp. 17. (link)

Sagaseta J. (2008) 'The influence of aggregate fracture on the shear strength of reinforced concrete beams'. PhD Thesis, Department of Civil and Environmental Engineering Imperial College London.

Vollum RL, Sagaseta J. (2008) 'Investigation into influence of Ductility Class on shear strength of reinforced concrete beams'. Technical Report for BAR, Imperial College London.

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