1 st MEMSCON Event 07/10/10, BucharestTECNIC EUROPEAN COMMISSION SPECIFIC TARGETED RESEARCH PROJECT – NMP – NANOSCIENCES, NANOTECHNOLOGIES MATERIALS AND NEW PRODUCTION TECHNOLOGIES PROJECT TITLE: RADIO FREQUENCY IDENTIFICATION TAGS LINKED TO ON BOARDS MICRO- ELECTRO-MECHANICAL SYSTEMS IN A WIRELESS, REMOTE AND INTELLIGENT MONITORING AND ASSESSMENT SYSTEM FOR THE MAINTENANCE OF CONSTRUCTED FACILITIES PARTICIPANTS: ICCS – GREECE C2V – THE NETHERLANDS IMEC – BELGIUM UNITN – ITALY IMEC NL - THE NETHERLANDS TECNIC – ITALY MEMSCAP – FRANCE DBA – GREECE RISA – GERMANYAMS – GREECE ACH GREECESITEX – ROMANIA

CONDITION - BASED MAINTENANCE MANAGEMENT Provide a wireless network of MEMS- based, strain and accelleration sensors, for monitoring of Reinforced Concrete buildings Provide a structural module that, based on input from strain and acceleration sensors, assess the degree of damage on each structural element under operating loads (differential settlements) and after an earthquake Provide a maintenance management module to select the remedial measure and assess its cost 1 st MEMSCON Event 07/10/10, Bucharest TECNIC

CONDITION – BASED MAINTENANCE MANAGEMENT Assessment of structural damage based on sensor measurements of strain in case of operating loads and acceleration in case of an earthquake Definition of the rehabilitation options and their unitary costs Estimation of the repair costs through an integrated software to the Memscon Package 1 st MEMSCON Event 07/10/10, Bucharest TECNIC

CONDITION – BASED MAINTENANCE MANAGEMENT OPERATING LOADS Early detection of differential settlements of the foundations as a function of time Evaluation of the internal forces for each structural element of the R.C. building as a function of time Assessment of the safety factors Reliable information to the R.C. Building facility Managers 1 st MEMSCON Event 07/10/10, Bucharest TECNIC

CONDITION-BASED MAINTENANCE MANAGEMENT EARTHQUAKE ACTION The objective is to provide a quick estimate of costs of the structural rehabilitation works Accomplishment of this objective through the collection of damage indices of discrete stuctural components Connection of damage indices to damage ratios Relation between Damage Ratios, Safety Factors and Damage States and the various rehabilitation techniques of repair 1 st MEMSCON Event 07/10/10, Bucharest TECNIC

CONDITION BASED – MAINTENANCE MANAGEMENT ‏ TECNIC 1 st MEMSCON Event 07/10/10, Bucharest R.C. Moment Frame Buildings Rehabilitation Techniques ‏ Column Jacketing Column rehabilitation is often critical to the seismic performance of a structure. To prevent a story mechanism during an earthquake, columns should never be the weakest components in a building structure. Jacketing of damaged columns is used to solve problems of inadequate shear capacity, inadequate concrete compression strain and stress capacity due to lack of concrete confinement and inadequate lap splice. Concrete, FRP, CFRP or steel overlays may be use in jackets

CONDITION BASED – MAINTENANCE MANAGEMENT THE DEVELOPED MODULE 1 st MEMSCON Event 07/10/10, Bucharest TECNIC Procedural Flow Chart for each element TECNIC

CONDITION BASED – MAINTENANCE MANAGEMENT THE DEVELOPED MODULE TECNIC 1 st MEMSCON Event 07/10/10, Bucharest The graphical representation

CONDITION BASED – MAINTENANCE MANAGEMENT THE DEVELOPED MODULE 1 st MEMSCON Event 07/10/10, Bucharest TECNIC The element strengthening

THE ITALIAN EXPERIENCE CLASSIFICATION OF THE DAMAGE OF THE STRUCTURAL COMPONENTS AFTER AN EARTHQUAKE TECNIC 1 st MEMSCON Event 07/10/10, Bucharest FRAMES D0 FLOORS STAIRS ROOF SHELLS PRE- EXISTING DAMAGE Structural tipologies Damage level - extension Global damage extension for single structural tipology Very Severe Damage - Collapse Visual Survey Cracking Survey Potential Yielding of Reinforcement Steel Structural Elements Misalignment Structural/No Structural Elements Collapse … Moderate – Severe Damage No Damage Light Damage (Source: Italia, Presidenza del Consiglio, Dipartimento della Protezione Civile, MANUALE PER LA COMPILAZIONE DELLA SCHEDA DI 1° LIVELLO DI RILEVAMENTO DANNO, PRONTO INTERVENTO E AGIBILITÀ PER EDIFICI ORDINARI DELL’EMERGENZA POST-SISMICA (AEDES))