Reinforced concrete (RC), also called reinforced cement concrete (RCC), is a composite material in which concrete's relatively low tensile strength and ductility are compensated for by the inclusion of reinforcement having higher tensile strength or ductility. The reinforcement is usually, though not necessarily, steel bars (rebar) and is usually embedded passively in the concrete before the concrete sets. However, post-tensioning is also employed as a technique to reinforce the concrete. Worldwide, in volume terms it is an absolutely key engineering material. In corrosion engineering terms, when designed correctly, the alkalinity of the concrete protects the steel rebar from corrosion.
Bridgeport is a city in Harrison County, West Virginia, United States. The population was 8,149 at the 2010 census.
Rebar, known when massed as reinforcing steel or reinforcement steel, is a steel bar or mesh of steel wires used as a tension device in reinforced concrete and reinforced masonry structures to strengthen and aid the concrete under tension. Concrete is strong under compression, but has weak tensile strength. Rebar significantly increases the tensile strength of the structure. Rebar's surface is often "deformed" with ribs, lugs or indentations to promote a better bond with the concrete and reduce the risk of slippage.
The Big Creek Bridge is a bowstring arch bridge that spans the Big Creek on U.S. Route 101 in Lane County, Oregon. It was designed by Conde McCullough and opened in 1931.
The Francis Scott Key Bridge, more commonly known as the Key Bridge, is a six-lane reinforced concrete arch bridge conveying U.S. Route 29 (US 29) traffic across the Potomac River between the Rosslyn neighborhood of Arlington County, Virginia, and the Georgetown neighborhood of Washington, D.C. Completed in 1923, it is Washington's oldest surviving road bridge across the Potomac River.
Bixby Creek Bridge, also known as Bixby Canyon Bridge, on the Big Sur coast of California, is one of the most photographed bridges in California due to its aesthetic design, "graceful architecture and magnificent setting". It is a reinforced concrete open-spandrel arch bridge. The bridge is 120 miles (190 km) south of San Francisco and 13 miles (21 km) south of Carmel in Monterey County along State Route 1.
Cape Creek Bridge is an arch bridge that spans Cape Creek in Lane County, Oregon, United States. The bridge carries U.S. Route 101. Opened in 1932, it was designed by noted bridge engineer Conde McCullough and built of reinforced concrete by John K. Holt. The total length of the bridge is 619 feet, with a main span of 220 feet. The bridge resembles a Roman aqueduct, with a single parabolic arch that spans half its length. It was listed as Cape Creek Bridge No. 01113 on the National Register of Historic Places in 2005, as part of the McCullough, C.B., Major Oregon Coast Highway Bridges MPS.
James Barney Marsh was an American engineer and bridge designer. He patented a new design for arch bridges. Marsh gave Archie Alexander, the first African-American to graduate as an engineer from Iowa State University, his first job. Marsh worked in the bridge building business for over 50 years, and several of his bridges are listed in the National Register of Historic Places.
Simpson Creek is a tributary of the West Fork River, 28 miles (45 km) long, in north-central West Virginia, USA. The stream was named for hunter and trapper John Simpson, who left his name on it after building and living in a cabin there for several months in 1763 and '64.
The Lamar Boulevard Bridge is a historic arch bridge carrying Texas State Highway Loop 343 over Lady Bird Lake in downtown Austin, Texas, United States. The bridge features six open-spandrel concrete arches spanning 659 feet (201 m) and carries tens of thousands of vehicles daily across the lake. Completed in 1942, the Lamar Boulevard Bridge was the second permanent bridge to cross the Colorado River, and one of the last Art Deco-style open-spandrel concrete arch bridges built in Texas. The bridge was named an Austin Landmark in 1993 and added to the National Register of Historic Places in 1994.
The Hares Hill Road Bridge is a single-span, wrought iron, bowstring-shaped lattice girder bridge. It was built in 1869 by Moseley Iron Bridge and Roof Company and is the only known surviving example of this kind. The bridge spans French Creek, a Pennsylvania Scenic River.
Wilson River Bridge, also known as Wilson River Bridge at Tillamook or Wilson River Bridge No. 01499, is a bridge near Tillamook, Oregon, United States. The 1931 bridge was designed by Conde McCullough in the Classical Revival and Art Deco styles. It covers a span of 180 feet and brings coastal U.S. Route 101 (US 101) over the Wilson River.
The Whipple Cast and Wrought Iron Bowstring Truss Bridge, is located near the entrance to Stevens Farm in southwestern Albany, New York, United States. It was built in 1867, but not moved to its present location until 1899. It is one of the oldest surviving iron bridges in the county, one of the few that use both cast and wrought iron and one of only two surviving examples of the Whipple bowstring truss type. In 1971 it was listed on the National Register of Historic Places, the only bridge in the city of Albany so far to be listed individually.
Arching or compressive membrane action (CMA) in reinforced concrete slabs occurs as a result of the great difference between the tensile and compressive strength of concrete. Cracking of the concrete causes a migration of the neutral axis which is accompanied by in-plane expansion of the slab at its boundaries. If this natural tendency to expand is restrained, the development of arching action enhances the strength of the slab. The term arching action is normally used to describe the arching phenomenon in one-way spanning slabs and compressive membrane action is normally used to describe the arching phenomenon in two-way spanning slabs.
A Rigid-frame bridge is a bridge in which the superstructure and substructure are rigidly connected to act as a continuous unit. Typically, the structure is cast monolithically, making the structure continuous from deck to foundation. The connections between members are rigid connections which transfer bending moment, axial forces, and shear forces. A bridge design consisting of a rigid frame can provide significant structural benefits, but can also be difficult to design and/or construct.
Bridge No. 90646, also known as the Wooddale Avenue Bridge, is a multi-plate steel arch bridge that carries a local street over Minnehaha Creek in Edina, Minnesota, United States. The bridge was listed on the National Register of Historic Places in February 2016.
The Lincoln Highway in Greene County, Iowa is a multiple property submission to the National Register of Historic Places, which was approved on March 29, 1993. It includes five individual listings and five historic districts located in Greene County, Iowa, United States. They encompass abandoned sections of dirt roads, paved sections that are now part of other highways, and various sites, objects, structures and pieces of infrastructure that were a part of the Lincoln Highway. The years of historical significance are 1912 to 1928.
The Dalgety Offices is a heritage-listed office building at 1-13 Sturt Street, Townsville CBD, City of Townsville, Queensland, Australia. It was designed by Walter Hunt and built from 1923 to 1925 by William Hornby Turner. It is also known as Sunskill House. It was added to the Queensland Heritage Register on 26 August 2005.
Canal Lake Concrete Arch Bridge is an arch bridge in Ontario, Canada, spanning a portion of Canal Lake on the Trent–Severn Waterway between Balsam Lake and Lake Simcoe. It is north-northeast from the town of Bolsover.
The West Fifth Street Bridge is a historic cantilever concrete girder bridge in downtown Austin, Texas. Built in 1931, the bridge carries Fifth Street across Shoal Creek to link central Austin with neighborhoods that were then the city's western suburbs. It is one of only a handful of curved cantilever girder bridges in Texas, built as part of the city's 1928 master plan for urban development and beautification. The bridge was added to the National Register of Historic Places in 2019.
