土木工程桥梁专业英语 ppt
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• the most commonly built and utilized bridge • the most simplified form • No moments are transferred throughout the
support
Arch Bridge
One or more arches Masonry, reinforced concrete or steel deck arch bridge(上承式拱桥) through arch
bridge(下承式拱桥) Spans can be longer than beam or truss
Arch Bridge
• Workflow on the Roman Bridge: the falsework(脚手架) was moved to another opening as soon as the lower arch rib had been completed
Tower Bridge London England built 1886–1894 combined bascule
and suspension two bridge towers
History of Bridge Development
Brooklyn Bridge Completed in 1883 New York City of
Cable-Stayed Bridge
• one or more towers • cables support the bridge deck • two major classes of cable-stayed bridges: harp
and fan. • optimal for spans longer than cantilever bridges,
(1991m)
Hale Waihona Puke Baidu
Types of Bridges
1. Beam bridge 2. Arch Bridge 3. Moveable bridge 4. Cable-Stayed Bridge 5. Suspension Bridge
Beam bridge
• a bridge that utilizes girders as the means of supporting the deck
mast
Suspension Bridge
• span 600 to 1200 m -- way farther than any other type of bridge
• Most suspension bridges have a truss system beneath the roadway to resist bending and twisting.
water to pass through
History of Bridge Development
Covered bridge(廊 桥)
17th Europe timber-truss bridge • Protect wooden
structural
History of Bridge Development
Cable-Stayed Bridge
• Octávio Frias de Oliveira (圣保罗奥利韦尔)Bridge • São Paulo, Brazil, opened in May 2008 • two curved tracks supported by a single concrete
Moveable bridge
• Beam is moveable • Advantage： lower cost • Disadvantage：traffic must be halted when
it is opened
Moveable bridge
• All kinds of moveable bridges
distributes stresses Natural concrete
made from mud and straw
History of Bridge Development
Zhaozhou Bridge 安济桥 600 A.D. CHINA Chinese oldest standing stone bridge Low bridge, shallow arch, allows boats and
and shorter than suspension bridges.
Cable-Stayed Bridge
• The Russky Bridge, the world's longest cablestayed bridge
• The bridge was completed in July 2012, Russia • with a 1104 m long central span
History of Bridge Development
Clapper Bridge primitive Material： 1.Tree trunk 2.Stone
History of Bridge Development
Roman Arch Bridge 100 B.C. Romans Arch design evenly
BRIDGES
History of Bridge Development
1. Clapper Bridge 2. Roman Arch Bridge 3. Zhaozhou Bridge 4. Covered Bridge 5. Tower Bridge 6. Brooklyn Bridge 7. Akashi Kaikyō Bridge
USA hybrid cable-
stayed/suspension bridge Use of steel in suspending cables
History of Bridge Development
Akashi Kaikyō Bridge 1988-1998 the longest central span in the world
support
Arch Bridge
One or more arches Masonry, reinforced concrete or steel deck arch bridge(上承式拱桥) through arch
bridge(下承式拱桥) Spans can be longer than beam or truss
Arch Bridge
• Workflow on the Roman Bridge: the falsework(脚手架) was moved to another opening as soon as the lower arch rib had been completed
Tower Bridge London England built 1886–1894 combined bascule
and suspension two bridge towers
History of Bridge Development
Brooklyn Bridge Completed in 1883 New York City of
Cable-Stayed Bridge
• one or more towers • cables support the bridge deck • two major classes of cable-stayed bridges: harp
and fan. • optimal for spans longer than cantilever bridges,
(1991m)
Hale Waihona Puke Baidu
Types of Bridges
1. Beam bridge 2. Arch Bridge 3. Moveable bridge 4. Cable-Stayed Bridge 5. Suspension Bridge
Beam bridge
• a bridge that utilizes girders as the means of supporting the deck
mast
Suspension Bridge
• span 600 to 1200 m -- way farther than any other type of bridge
• Most suspension bridges have a truss system beneath the roadway to resist bending and twisting.
water to pass through
History of Bridge Development
Covered bridge(廊 桥)
17th Europe timber-truss bridge • Protect wooden
structural
History of Bridge Development
Cable-Stayed Bridge
• Octávio Frias de Oliveira (圣保罗奥利韦尔)Bridge • São Paulo, Brazil, opened in May 2008 • two curved tracks supported by a single concrete
Moveable bridge
• Beam is moveable • Advantage： lower cost • Disadvantage：traffic must be halted when
it is opened
Moveable bridge
• All kinds of moveable bridges
distributes stresses Natural concrete
made from mud and straw
History of Bridge Development
Zhaozhou Bridge 安济桥 600 A.D. CHINA Chinese oldest standing stone bridge Low bridge, shallow arch, allows boats and
and shorter than suspension bridges.
Cable-Stayed Bridge
• The Russky Bridge, the world's longest cablestayed bridge
• The bridge was completed in July 2012, Russia • with a 1104 m long central span
History of Bridge Development
Clapper Bridge primitive Material： 1.Tree trunk 2.Stone
History of Bridge Development
Roman Arch Bridge 100 B.C. Romans Arch design evenly
BRIDGES
History of Bridge Development
1. Clapper Bridge 2. Roman Arch Bridge 3. Zhaozhou Bridge 4. Covered Bridge 5. Tower Bridge 6. Brooklyn Bridge 7. Akashi Kaikyō Bridge
USA hybrid cable-
stayed/suspension bridge Use of steel in suspending cables
History of Bridge Development
Akashi Kaikyō Bridge 1988-1998 the longest central span in the world