1. INTEGRATION OF THE TECHNOLOGIES FOR STRUCTURAL ASSESSMENT AIDICO Construction Technological Institute Valencia - Spain 1 st MEMSCON Event 07/10/10, BucharestAIDICO

2. CONTENTS  The important of the Investigation in the process: pathology-assessment-refurbishment.  Applied Technologies  3D Scanner-laser  Infra-red Thermography  Sonic Test  Modal analysis. OMA  Numerical Simulation. 3D-Model.  Structural Assessment. AIDICO 1 st MEMSCON Event 07/10/10, Bucharest

3. SEFDEC- PROJECT AIDICO 1 st MEMSCON Event 07/10/10, Bucharest BELL TOWER CONCRETE WATER TANK DEPOSIT CABLE STAYED BRIDGE

4. PATHOLOGIES-ASSESSMENT-REFURBISHMENT AIDICO 1 st MEMSCON Event 07/10/10, Bucharest How does it plays the Investigation in the process: Pathology– Assessment- Refurbishment Problem – Research - Intervention - Observation CAUSESPROBLEMS Pathology Study Pathology Process Examination –> Pre-assessment –> Analysis -> Assessment The ANALYSIS considers the following procedure: admisible threshold, Diagnostic Patterns, crack or defect pattern, expert systems, numerical analysis, technical tests,… The ASSESSMENT should be attend the causes and the serious of the pathologies…and to include the recommended theraphy (usage limitation, demolition, re-integration, reinforcement,… - Analysis - Assessment

5. APPLIED TECHNOLOGIES AIDICO 1 st MEMSCON Event 07/10/10, Bucharest

6. 3D-SCANNER LASER AIDICO 1 st MEMSCON Event 07/10/10, Bucharest

7. INFRA-RED THERMOGRAPHY AIDICO 1 st MEMSCON Event 07/10/10, Bucharest

8. SONIC TESTING AIDICO 1 st MEMSCON Event 07/10/10, Bucharest Since from other parameters as the average concrete apparent density  = 2,3 kg/m 3, it has been calculated the elastic modulus and constants: - Young modulus E -> E d = 18,5 GPa - Shear or Rigidity modulus G -> G d = 7,54 GPa In these case, it is assumed the final modulus as the half of the dynamic that comes from the real test (sonic test), therefore it is assigned an elastic modulus about 10 GPa, so that 9,25 GPa has been adopted. The founded values for the velocities are the following: - P-wave time of flight -> Tp= 820 us - P-wave velocity -> Vp = 3040 m/s - S-wave time of flight -> Tp= 1320 us - S-wave velocity -> Vs = 1811 m/s

9. OPERATIONAL MODAL ANALYSIS: ACCELEROMETRIC TESTS AIDICO 1 st MEMSCON Event 07/10/10, Bucharest MEM4 MEMS2 MEMS6 MEMS5 MEMS3 MEMS1 MEMS7 MEMS8 MEMS9 FLEXURAL 1 1,416 Hz FLEXURAL 2 1,487 Hz FLEXURAL 1 2,755 Hz

10. OPERATIONAL MODAL ANALYSIS: RADAR INTERFEROMETRIC AIDICO 1 st MEMSCON Event 07/10/10, Bucharest

11. STRUCTURAL MODELLING AIDICO 1 st MEMSCON Event 07/10/10, Bucharest TORSIONAL MODE FLEXURAL MODE 2 FLEXURAL MODE 1 E,, 

12. STRUCTURAL ASSESSMENT AIDICO 1 st MEMSCON Event 07/10/10, Bucharest Static Analysis: Gavitational Tension: Water mass and own weight Maximum Principal Stress : Shear tension Minimum Principal Stress : Compression tension E = 10 GPa  Rc (compression) ~ 20 MPa  Rc (shear) ~ 7.5 MPa

13. STRUCTURAL ASSESSMENT STRONG WIND PRESSURE AIDICO 1 st MEMSCON Event 07/10/10, Bucharest WIND ACTIONS: Pressure & Suction 80 P -30 S 120 P -45 S Compression 11.5 MPa Shear 7.3 MPa Shear 4.3 MPa Compression 8.7 MPa

14. CONCLUSIONS Nondestructive technology could be applied to gather information: To know the mechanical properties of the structural elements, To supply confident data that comes from the experimental tests to numerical simulation, To allow comparing experimental behaviour from different techniques (modal tests) To match the numerical simulation and experimental test (mechanical parameters & boundary conditions). To perform structural assessment against events. AIDICO 1 st MEMSCON Event 07/10/10, Bucharest