- Improving the seismic performance of precast buildings using dissipative devices
- M. Valente
- Procedia Engineering, Vol. 54, pages 795-804
- Book Title / Journal:
- Year: 2013 , Volume: , Series:
- Repair and Retrofit of Structures
- Keywords: Concrete structures
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- Analysis of rehabilitation effect on the improvement capacity of reinforced concrete beams with FEM
- M. Ahmadi
- Procedia Engineering, Vol. 54, pages 327-340
- Book Title / Journal:
- Year: 2013 , Volume: , Series:
- Repair and Retrofit of Structures
- Keywords: Concrete structures
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- Utilization of ultra-high performance fibre concrete (UHPFC) for rehabilitation – a review
- B.H. Tayeh ; M.A. Abu Bakar ; Yen L. V.
- Procedia Engineering, Vol. 54, pages 525-538.
- Book Title / Journal:
- Year: 2013 , Volume: , Series:
- Repair and Retrofit of Structures
- Keywords: Concrete structures
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- Evaluation of bond strength between normal concrete substrate and ultra high performance fiber concrete as a repair material
- B.H. Tayeh ; M.A. Abu Bakar ; Yen L. V.
- Procedia Engineering, Vol. 54, pages 554-563
- Book Title / Journal:
- Year: 2013 , Volume: , Series:
- Repair and Retrofit of Structures
- Keywords: Concrete structures
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- The effect of preloading on the strength of jacketed R/C columns
- V. Papanikolaou ; S. Stefanidou ; A. Kappos
- Book Title / Journal: Construction and Building Materials
- Year: 2013 , Volume: 38 , Series:
- Repair and Retrofit of Structures
- Description
- The influence of core preloading on the strength of jacketed reinforced concrete (R/C) columns is analytically investigated. A recently proposed method for arbitrary composite section analysis in biaxial bending and axial load is extended to include preloading actions. A parametric evaluation of the preloading effect using quantitative indices is performed, considering the variability of several parameters such as section geometry, amount of reinforcement, and various axial and moment preloading levels. Results are presented in the form of 3D failure surfaces and moment-curvature curves. Specific cases where the preloading effect is more pronounced are finally highlighted.
- Abstract
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- Dissipative bracing-based seismic retrofit of R/C school buildings
- G. Terenzi ; S. Sorace
- The Open Construction and Building Technology Journal, 6, 334-345
- Book Title / Journal:
- Year: 2012 , Volume: , Series:
- Repair and Retrofit of Structures
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- FRP strengthened brick-infilled RC frames: an approach for their proper consideration in design
- I.N. Psycharis ; E. Smyrou ; C.A. Maniatakis ; C.C. Spyrakos
- Book Title / Journal: The Open Construction and Building Technology Journal, 6, (Suppl 1-M19) 306-324
- Year: 2012 , Volume: , Series:
- Repair and Retrofit of Structures
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- Analysis of masonry walls strengthened with RC jackets
- S. Churilov ; E. Dumova-Jovanoska
- The 15th World Conference on Earthquake Engineering, Lisbon, Portugal, Paper No. 1074
- Book Title / Journal:
- Year: 2012 , Volume: , Series:
- Repair and Retrofit of Structures
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- Development of promotion systems for pp-band retrofitting of non-engineered masonry houses
- N. Sorimachi ; M. Numada ; K. Meguro
- The 15th World Conference on Earthquake Engineering, Lisbon, Portugal, Paper No. 2188
- Book Title / Journal:
- Year: 2012 , Volume: , Series:
- Repair and Retrofit of Structures
- Keywords: Masonry Structures
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- Strengthening of stone walls by unilateral applications of reinforced concrete
- G.P. Tonkih ; O.V. Kabancev ; O.A. Simakov
- The 15th World Conference on Earthquake Engineering, Lisbon, Portugal, Paper No. 3661
- Book Title / Journal:
- Year: 2012 , Volume: , Series:
- Repair and Retrofit of Structures
- Keywords: Masonry Structures
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- Structural behavior of small scale masonry elements strengthened with engineered cementitious composites
- A. Dehghani ; G. Fischer ; F. Nateghi-Alahi
- The 15th World Conference on Earthquake Engineering, Lisbon, Portugal, Paper No. 5337
- Book Title / Journal:
- Year: 2012 , Volume: , Series:
- Repair and Retrofit of Structures
- Keywords: Masonry Structures
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- Innovative retrofitting materials for brick masonry infill walls
- J.M. Gomez ;
- Book Title / Journal: MSc Dissertation, University of Minho
- Year: 2012 , Volume: , Series:
- Repair and Retrofit of Structures
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- A Low Cost Retrofit Scheme for Masonry-Infilled Non-Ductile Reinforced Concrete Frames
- P. Lukkunaprasit ; J. Srechai
- Book Title / Journal: 15th World Conference on Earthquake Engineering, Portugal, Lisbon
- Year: 2012 , Volume: , Series:
- Repair and Retrofit of Structures
- Keywords: Non-Ductile Frame ; Reinforced Concrete ; Un-reinforced Masonry Infil ; seismic retrofit
- Description
- A low cost and effective scheme has been developed for retrofitting masonry-infilled reinforced concrete (RC) frames.
Three ¾ scaled models of single bay, single story non-ductile RC frames with un-reinforced masonry (URM) infill panels were tested under horizontal cyclic loading and a constant vertical load. The experimental results indicate that an un-retrofitted specimen suffers corner crushing and abrupt shear failure in the columns at a very small drift ratio of
0.50%. The retrofitted masonry panel is separated from the columns so that no shear is transferred to them. Steel brackets are provided to transfer the interactive forces between the RC frame and URM panel. The peak lateral load decreases approximately in proportion to the area reduction ratio of the panel with desirable gradual drop in capacity whereas the drift capacity increases to about 1.50%. The retrofit scheme compares favorably with others incorporating either heavy mesh reinforcement or carbon fiber reinforced polymer.
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- Evaluation of A Retrofit Solution Used for Concrete Masonry Walls with Large Openings Using FEM Nonlinear Analysis
- M. Motamedi ; H. Kakolvand ; M Yekrangnia
- Book Title / Journal: 15th World Conference on Earthquake Engineering, Lisbon, Portugal
- Year: 2012 , Volume: , Series:
- Repair and Retrofit of Structures
- Keywords: Unreinforced masonry walls ; push over analysis ; seismic retrofit ; failure mode
- Description
- This paper deals with the modeling of existing unreinforced concrete block walls with finite elements and evaluation of a proposed retrofit solutions used in practice. The objectives of developing the analytical model were prediction of inelastic response of the walls with the openings and the study of the effect of the retrofit solution for seismic upgrading of the existing walls. Concrete core technique was employed for wall retrofit of the different models. To study of in-plane behavior of the walls the models were verified with the test results obtained from the similar walls studied in previous works and calibrated to present the identical inelastic loaddeformation response of the tested specimens. Nonlinear push over analysis was performed on the models to study the capacity of the walls up to 4% drifts. As results, the inelastic response was compared in different studied walls. Lateral resistance capacity, initial stiffness and the mode of failure of the walls were presented and the effect of the retrofit solution on the behavior of the existing masonry walls with large openings was
evaluated.
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- Experiences on retrofitting of low strength masonry buildings by different retrofitting techniques in Nepal
- C. Stoakes ; G.M. Verderame ; F De Luca ; M.T. De Risi ; C. Del Gaudio ; P. Ricci ; J.K. McIntosh ; J. Mitrani-Reiser ; T.D. Kirsch ; S. Giovinazzi ; C. Jacques ; T.M. Wilson ; M.W. Stirling ; M. Gerstenberger ; Graeme H. McVerry ; K. Lee ; T.-H. Lee ; S. Han ; H. Kim ; H. Shrestha ; R. Guragain ; S. Pradhan
- The 15th World Conference on Earthquake Engineering, Lisbon, Portugal, Paper No. 2012
- Book Title / Journal:
- Year: 2012 , Volume: , Series:
- Repair and Retrofit of Structures
- Keywords: Masonry Structures
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