00822725

Component

https://doi.org/10.3141/1772-12

http://scholar.google.com...ruce&publication_year=2001

The internal reinforcement method (IRM) was developed by Fernando Lizzi in the early 1950s. It is a complete structural system reinforcement method used to retrofit nonreinforced masonry and stone structures and any associated foundation systems. The general design principles of the foundation retrofit are similar to the principles used in the structure retrofit, for placement and engagement of reinforcement. The IRM technology integrates the complete structure, the foundation and bridge or building, into a continuously reinforced seismic-resistant system. The Three Arches Bridge is the only three-span bridge in Venice today. Built in the 17th century, this simple pedestrian bridge was constructed of nonreinforced clay brick masonry with spread footings bearing on the canal floor. Over time, the differential settlement caused localized distress to the overall structure. It was in such a state of disrepair that it was scheduled for demolition in the early 1960s. Lizzi was named to design and construct the historic preservation and structural retrofit of the complete structure. This was accomplished with reticulated internal structural stitching and reticulated micropiles. This structure is a case study of use of the IRM for static and seismic retrofit. The geometric simplicity of the bridge and the clarity of purpose and execution of the reticulated internal stitching and micropiles provide an example of technology that exemplifies the IRM method of integrated complete system static and seismic retrofit.

This paper appears in Transportation Research Record No. 1772, Soil Mechanics 2001.

English

p. 107-114

2001

Transportation Research Record

0309072360

Figures (9) ; Photos (2) ; References (18)

Bridge foundations; Earthquake resistant design; Historic bridges; Historic preservation; Masonry bridges; Retrofitting

Lizzi, Fernando

Internal reinforcement method; Micropiles

Venice (Italy)

Bridges and other structures; Design; Geotechnology; Highways; History; I24: Design of Bridges and Retaining Walls; I42: Soil Mechanics

TRIS, TRB, ATRI

Jan 24 2002 12:00AM

• CLASS-A PREDICTION OF CONSTRUCTION DEFECTS IN DRILLED SHAFTS
• EFFECTS OF MINOR ANOMALIES ON AXIAL CAPACITY OF DRILLED SHAFTS
• ENGINEERING ANALYSIS OF DYNAMIC BEHAVIOR OF MICROPILE SYSTEMS
• ESTIMATING HIGHWAY EARTHWORK CROSS SECTIONS BY USING VECTOR AND PARAMETRIC REPRESENTATION
• EXAMINING THE EFFECTS OF REINFORCEMENT IN U.S. FOREST SERVICE DEEP-PATCH LANDSLIDE REPAIR TECHNIQUE: FULL-SCALE MODEL TESTS
• FAILURE OF GEOTEXTILE-REINFORCED VERTICAL SOIL WALLS WITH MARGINAL BACKFILL
• FIELD INSTALLATION OF AN EARTH PRESSURE CELL
• GEOCOMPOSITE CAPILLARY BARRIER DRAIN SYSTEM WITH FIBERGLASS TRANSPORT LAYER
• IN SITU MEASUREMENT AND EMPIRICAL MODELING OF BASE INFILTRATION IN HIGHWAY PAVEMENT SYSTEMS
• INSTALLATION SURVIVABILITY OF FLEXIBLE GEOGRIDS IN VARIOUS PAVEMENT SUBGRADE MATERIALS
• INSTRUMENTATION AND CONSTRUCTION PERFORMANCE MONITORING FOR I-15 RECONSTRUCTION PROJECT IN SALT LAKE CITY, UTAH
• LATERALLY LOADED DRILLED SHAFTS EMBEDDED IN SOFT ROCK
• LIMIT STATES AND FACTOR OF SAFETY IN DESIGN OF AN ANCHORED SHEET PILE WALL
• MODELING PAVEMENT SUBDRAINAGE SYSTEMS
• MONITORING THE EFFECTS OF A DEEP EXCAVATION ON TWO ADJACENT OFFICE BUILDINGS
• PERFORMANCE OF GEOCOMPOSITE MEMBRANE AS PAVEMENT MOISTURE BARRIER
• QUALITY ASSURANCE PROCEDURE TO ASSESS MAINTENANCE ADEQUACY OF DRAINAGE ASSETS
• RATIONAL BASIS FOR EVALUATION AND DESIGN OF PAVEMENT DRAINAGE LAYERS
• REAL-TIME MONITORING OF SUBSIDENCE ALONG I-70 IN WASHINGTON, PENNSYLVANIA
• REPEATABILITY AND RELIABILITY OF THE TUBE SUCTION TEST
• SEISMIC BEHAVIOR OF MICROPILES USED AS FOUNDATION SUPPORT ELEMENTS: THREE-DIMENSIONAL FINITE ELEMENT ANALYSIS
• STRAIN WEDGE MODEL HYBRID ANALYSIS OF LATERALLY LOADED PILE GROUP
• STUDY OF SCALP-AND-REPLACE EQUATION IN COMPACTION SPECIFICATION FOR SOIL WITH HIGH GRAVEL CONTENT
• USE OF DISCRETE EVENT SIMULATION TO DESIGN GEOCOMPOSITE MEMBRANE INSTALLATIONS