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Load (KN) Load ( KN) 6 5 4 3 2 1 0 5 4 3 2 1 0 FLEXURAL STRENGTHENING OF OLD WOOD MEMBERS IN HISTORICAL BUILDINGS WITH GFRP 3 ave GFRP, 1 layer 1 2 0 5 10 15 20 25 Displacement (mm) 4 5 306 Load ( KN) 5 4 3 2 1 ave GFRP, 2 layers 1 5 2 0 0 5 10 15 20 25 Displacement (mm) (a) (b) GFRP, 3 layers bottom GFRP, 2 layers down+ 1 layer up + 2 strips ave 5 4 2 3 0 5 10 15 20 25 30 Load (KN) 6 5 4 3 2 1 1 Load ( KN) Displacement (mm) Displacement(mm) (c) (d) 3 ave 6 5 4 3 2 1 0 ave GFRP, 3 layers bottom+1 layer up 2 5 2 1 5 3 0 5 10 15 20 25 30 0 0 5 10 15 20 25 30 35 Displacement (mm) (e) Fig. 3. Load-displacement curves for different configurations of GFRP – wood hybrids. (a) Specimens are reinforced with one layer of GFRP, (b) two layers reinforcement, (c) two layers down plus one layer up plus two strips rounded near the supports, (d) three layers reinforcement, (e) three layers reinforcement on bottom and one layer on up. 1 4 4 3 4
load (KN) Samples 6 5 4 3 2 1 WOOD SCIENCE FOR CONSERVATION OF CULTURAL HERITAGE Comparison between different configurations 3 layers bottom + 1layer top 2 layers bottom + 1 layer top + 2 strips control 1 layer bottom 3layers bottom 0 0 2 4 6 8 10 12 14 16 18 20 Displacement (mm) 307 2 layers bottom Fig. 4. Comparison between the results of average curves from each group of reinforcement. Table 4. The mean value of the test results in different reinforced schemes of wood- GFRP hybrid ultimate Load (KN) Increase % ultimate Stress (M Pa) Increase % Modulus of elasticity (E) Control Mean Value 3.51 _ 119.30 _ 9990 SD. Mean 0.29 9.70 1186 1 Layer bottom Value 4.06 15.48 135.40 13.50 9551 SD. Mean 0.42 14.38 1435 2 Layers bottom Value 4.71 34.02 147 23.20 9608 SD. 2 Layers bottom Mean 0.13 5.30 1160 + 1 Layer top + Value 4.58 30.46 137.40 15.17 10959 2 strip SD. Mean 0.61 19.60 1546 3 Layers bottom Value 4.63 31.77 141.80 18.86 9558 SD. 0.67 17.80 2457 3 Layers bottom Mean + 1 Layer top Value 5.52 57.10 156.60 31.26 10950 SD. 0.55 12.80 865 Increase % _ - 4.40 - 3.82 9.70 - 4.32 9.61 Failure Mode Brittle failure in tensile side Brittle failure in tensile side Ductile failure with debonding in tension side Ductile and tension failure Delaminated .with tensile failure Ductile with compression failure
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Proceedings e report 67
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Wood science for conservation of cu
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SUMMARY Introduction ..............
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WOOD SCIENCE FOR CONSERVATION OF CU
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INTRODUCTION These proceedings of a
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(A) MATERIAL PROPERTIES
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SORPTION OF MOISTURE AND DIMENSIONA
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VIBRATIONAL PROPERTIES OF TROPICAL
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CREEP PROPERTIES OF HEAT TREATED WO
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MEASUREMENT OF THE ELASTIC PROPERTI
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ELASTIC PROPERTIES OF MINUTE SAMPLE
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4. Results Young's modulus (10^4 Mp
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PREDICTION OF LINEAR DIMENSIONAL CH
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DIMENSIONAL CHANGE OF UNRESTRICTED
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DIMENSIONAL CHANGE OF UNRESTRICTED
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AGEING OF WOOD - DESCRIBED BY THE A
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90 30 0 3,0E-03 - 2,0E 2,0E-03 - 1,
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4. Application HYGRO-LOCK INTEGRATI
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RESEARCH ON THE AGING OF WOOD IN RI
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RESEARCH ON THE AGING OF WOOD IN RI
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Xylarium Database RESEARCH ON THE A
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AGING WOOD FROM CULTURAL PROPERTIES
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AGING WOOD FROM CULTURAL PROPERTIES
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STRENGTH AND MOE OF POPLAR WOOD (PO
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STRENGTH AND MOE OF POPLAR WOOD ACR
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STRENGTH AND MOE OF POPLAR WOOD ACR
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PHOTODEGRADATION AND THERMAL DEGRAD
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ROMANIAN WOODEN CHURCHES WALL PAINT
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DISINFECTION AND CONSOLIDATION BY I
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3. Results and discussion WOOD SCIE
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FUNGAL DECONTAMINATION BY COLD PLAS
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STUDIES ON INSECT DAMAGES OF WOODEN
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TERMITE INFESTATION RISK IN PORTUGU
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BIODETERIORATION OF CULTURAL HERITA
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4. Causes of biodeterioration WOOD
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DEGRADATION OF MELANIN AND BIOCIDES
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MOULD ON ORGANS AND CULTURAL HERITA
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RESEARCH STUDY ON THE EFFECTS OF TH
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4. Methodology WOOD SCIENCE FOR CON
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NON DESTRUCTIVE IMAGING FOR WOOD ID
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METHODS OF NON-DESTRUCTIVE WOOD TES
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MEASUREMENT AND SIMULATION OF DIMEN
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IN THE HEART OF THE LIMBA TREE (TER
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3. Conclusions WOOD SCIENCE FOR CON
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2. Materials and methods WOOD SCIEN
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3. Chemometrics WOOD SCIENCE FOR CO
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3. Results and discussion WOOD SCIE
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NIR SPECTROSCOPIC MONITORING OF WAT
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NUMERICAL SIMULATION OF THE STRENGT
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3. Methods and models WOOD SCIENCE
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SIMPLE ELECTRONIC SPECKLE PATTERN I
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5. Conclusions WOOD SCIENCE FOR CON
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Average r adiated presure field (dB
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EXPERIMENTAL AND NUMERICAL MECHANIC
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EFFECT OF THERMAL TREATMENT ON STRU
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The aims of this work are to: WOOD
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ultramarine [bad] titanium white [m
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4. Conclusions chrome yellow WOOD S
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Fig. 7 - A soaked lamella clamped i
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(D) CONSERVATION
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EUROPEAN TECHNICAL COMMITTEE 346 -
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EUROPEAN TECHNICAL COMMITTEE 346 -
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Page 264 and 265: THE WRECK OF VROUW MARIA - CURRENT
Page 270 and 271: ROMANIAN ARCHITECTURAL WOODEN CULTU
Page 276 and 277: RESSURREIÇÃO DE CRISTO - PANEL FR
Page 278 and 279: ON 18 TH- AND 19 TH- CENTURY SACRIS
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Page 286 and 287: DEFIBRING OF HISTORICAL ROOF BEAM C
Page 292 and 293: EXAMINATION AND CONSERVATION OF TWO
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Page 296 and 297: THE CONSEQUENCES OF WOODEN STRUCTUR
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Page 301 and 302: WHAT ONE NEEDS TO KNOW FOR THE ASSE
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Page 313 and 314: STRUCTURAL BEHAVIOUR OF TRADITIONAL
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Page 329 and 330: INVESTIGATION ON THE UTILIZATION OF
Page 337 and 338: 3. Results and discussions WOOD SCI
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Page 345 and 346: ANNEX 1: FACTS ABOUT COST ACTION IE
Page 351 and 352: Keynote presentations WOOD SCIENCE
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