ARCH 04

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4TH. CONFERENCE ON ARCH BRIDGES
Barcelona, November 17-19 2004
REPAIR OF STONE MASONRY ARCH BRIDGES
Daniel Oliveira Paulo Lourenço U N I V E
R S I T Y O F M I N H O
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4 T H. C O N F E R E N C E O N A R C H
B R I D G E S - B A R C E L O N A , 2 0
0 4
INTRODUCTION
INTRODUCTION
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4 T H. C O N F E R E N C E O N A R C H
B R I D G E S - B A R C E L O N A , 2 0
0 4
INTRODUCTION
(Preventive maintenance)
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4 T H. C O N F E R E N C E O N A R C H
B R I D G E S - B A R C E L O N A , 2 0
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When dealing with architectural valuable
constructions
INTRODUCTION
 
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4 T H. C O N F E R E N C E O N A R C H
B R I D G E S - B A R C E L O N A , 2 0
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INTRODUCTION
BOUTACA BRIDGE
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4 T H. C O N F E R E N C E O N A R C H
B R I D G E S - B A R C E L O N A , 2 0
0 4
INTRODUCTION
BOUTACA BRIDGE
(Buttresses overloaded)
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Existing anchorages much deteriorated and rather
deformed (outward movement of masonry)
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4 T H. C O N F E R E N C E O N A R C H
B R I D G E S - B A R C E L O N A , 2 0
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A) Structural Strengthening
INTRODUCTION
Additional buttressing system
BOUTACA BRIDGE
Patress plate
Tie rod
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4 T H. C O N F E R E N C E O N A R C H
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B) Other measures
INTRODUCTION
BOUTACA BRIDGE
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4 T H. C O N F E R E N C E O N A R C H
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INTRODUCTION
-
BOUTACA BRIDGE
Dimensions 62m length, 4m width (larger span
12m)
DONIM BRIDGE
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4 T H. C O N F E R E N C E O N A R C H
B R I D G E S - B A R C E L O N A , 2 0
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INTRODUCTION
BOUTACA BRIDGE
DONIM BRIDGE
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4 T H. C O N F E R E N C E O N A R C H
B R I D G E S - B A R C E L O N A , 2 0
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INTRODUCTION
BOUTACA BRIDGE
DONIM BRIDGE
(Incremental principal strains)
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4 T H. C O N F E R E N C E O N A R C H
B R I D G E S - B A R C E L O N A , 2 0
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A) Left Arch (return joints thickness to its
original width)
INTRODUCTION
BOUTACA BRIDGE
DONIM BRIDGE
tie rod
profiles U shape
Anchor rods
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4 T H. C O N F E R E N C E O N A R C H
B R I D G E S - B A R C E L O N A , 2 0
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B) Flood (right) Arch (prevent further spreading
of the arch)
INTRODUCTION
BOUTACA BRIDGE
DONIM BRIDGE
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4 T H. C O N F E R E N C E O N A R C H
B R I D G E S - B A R C E L O N A , 2 0
0 4
C) Other measures
INTRODUCTION
BOUTACA BRIDGE
DONIM BRIDGE
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4 T H. C O N F E R E N C E O N A R C H
B R I D G E S - B A R C E L O N A , 2 0
0 4
Common features to both examples
INTRODUCTION
BOUTACA BRIDGE
DONIM BRIDGE
FINAL REMARKS