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The Triplets Bridges
Three consecutive Extradosed bridges are part of a north beltway of La Paz in Bolivia. The project was funded by CAF (Corporación Andina de Fomento) through a credit to the Municipality in 2006. In 2007 the Municipal Government of La Paz awarded the design and construction of The Triplets Bridge Project to the JV “Consorcio Asociación Accidental Progreso”. As part of this contract, PEDELTA carried out the conceptual and final detailed design. There was a preliminary design that defined three three-span cable-stayed bridges with central spans between and two cable-stay planes, similar to another existing in the city: the Bridge of the Americas (La Paz), Bridge of the Americas. After a study of alternatives, where the bridge should have a cable supported deck in order to fulfill the technical specifications of the contract, it was proposed to modify the structural type to improve the visual impact on the landscape of La Paz. Therefore, it was proposed an extradosed bridge typ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
La Paz
La Paz (), officially known as Nuestra Señora de La Paz (Spanish pronunciation: ), is the seat of government of the Bolivia, Plurinational State of Bolivia. With an estimated 816,044 residents as of 2020, La Paz is the List of Bolivian cities by population, third-most populous city in Bolivia. Its metropolitan area, which is formed by La Paz, El Alto, Achocalla Municipality, Achocalla, Viacha Municipality, Viacha, and Mecapaca Municipality, Mecapaca makes up the second most populous urban area in Bolivia, with a population of 2.0 million, after Santa Cruz de la Sierra with a population of 2.3 million. It is also the capital of the La Paz Department, Bolivia, La Paz Department. The city, in west-central Bolivia southeast of Lake Titicaca, is set in a canyon created by the Choqueyapu River. It is in a bowl-like depression, part of the Amazon basin, surrounded by the high mountains of the Altiplano. Overlooking the city is the towering, triple-peaked Illimani. Its peak ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bolivia
, image_flag = Bandera de Bolivia (Estado).svg , flag_alt = Horizontal tricolor (red, yellow, and green from top to bottom) with the coat of arms of Bolivia in the center , flag_alt2 = 7 × 7 square patchwork with the (top left to bottom right) diagonals forming colored stripes (green, blue, purple, red, orange, yellow, white, green, blue, purple, red, orange, yellow, from top right to bottom left) , other_symbol = , other_symbol_type = Dual flag: , image_coat = Escudo de Bolivia.svg , national_anthem = " National Anthem of Bolivia" , image_map = BOL orthographic.svg , map_width = 220px , alt_map = , image_map2 = , alt_map2 = , map_caption = , capital = La Paz Sucre , largest_city = , official_languages = Spanish , languages_type = Co-official languages , languages ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pedelta Structural Engineers
PEDELTA is an independent multinational consultant firm headquartered in Barcelona, Spain which provides worldwide bridge and structural engineering services. The company is present in Canada, Colombia, Panama, Peru, Spain and the USA. The firm is internationally recognized by the introduction of advanced materials on bridges such as Cala Galdana Bridge, the first duplex stainless steel bridge, the GFRP Lleida Pedestrian Bridge, its innovative bridge aesthetics such as the Abetxuko Bridge and other cable supported structures. History The company was founded in Barcelona, (Spain) by Juan Sobrino in 1994 focus on bridge and structural design. The firm expanded to Colombia in 2001, the US in 2006, Canada in 2012 and Peru in 2013. In 2017 they started their geotechnical department in Colombia. Introduction of advanced materials PEDELTA is worldwide known for the introduction of GFRP and Stainless Steel as a main structural materials on bridges and building structures. The firm has d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Extradosed Bridge
An extradosed bridge employs a structure that combines the main elements of both a prestressed box girder bridge and a cable-stayed bridge. The name comes from the word ''extrados'', the exterior or upper curve of an arch, and refers to how the "stay cables" on an extradosed bridge are not considered as such in the design, but are instead treated as external prestressing tendons deviating upward from the deck. In this concept, they remain part of (and define the upper limit of) the main bridge superstructure. Compared to a cable-stayed or cantilever-girder bridge of comparable span, an extradosed bridge uses much shorter stay-towers or pylons than the cable-stayed bridge, and a significantly shallower deck/girder structure than used on the girder bridge. This arrangement results in the typical extradosed "look" of a fan of low, shallow-angle stay cables, usually with a pronounced "open window" region extending from the sides of each tower. The extradosed bridge form is mostly s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Concrete
Concrete is a composite material composed of fine and coarse aggregate bonded together with a fluid cement (cement paste) that hardens (cures) over time. Concrete is the second-most-used substance in the world after water, and is the most widely used building material. Its usage worldwide, ton for ton, is twice that of steel, wood, plastics, and aluminum combined. Globally, the ready-mix concrete industry, the largest segment of the concrete market, is projected to exceed $600 billion in revenue by 2025. This widespread use results in a number of environmental impacts. Most notably, the production process for cement produces large volumes of greenhouse gas emissions, leading to net 8% of global emissions. Other environmental concerns include widespread illegal sand mining, impacts on the surrounding environment such as increased surface runoff or urban heat island effect, and potential public health implications from toxic ingredients. Significant research and development is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Extradosed Bridges
An extradosed bridge employs a structure that combines the main elements of both a prestressed box girder bridge and a cable-stayed bridge. The name comes from the word '' extrados'', the exterior or upper curve of an arch, and refers to how the "stay cables" on an extradosed bridge are not considered as such in the design, but are instead treated as external prestressing tendons deviating upward from the deck. In this concept, they remain part of (and define the upper limit of) the main bridge superstructure. Compared to a cable-stayed or cantilever-girder bridge of comparable span, an extradosed bridge uses much shorter stay-towers or pylons than the cable-stayed bridge, and a significantly shallower deck/girder structure than used on the girder bridge. This arrangement results in the typical extradosed "look" of a fan of low, shallow-angle stay cables, usually with a pronounced "open window" region extending from the sides of each tower. The extradosed bridge form is mostly ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bridge Of The Americas (La Paz)
The Bridge of the Americas ( es, Puente de las Américas; originally known as the Thatcher Ferry Bridge) is a road bridge in Panama which spans the Pacific entrance to the Panama Canal. Designed by Sverdrup & Parcel, it was completed in 1962 at a cost of US$20 million, connecting the north and south American land masses. Two other bridges cross the canal: the Atlantic Bridge at the Gatun locks and the Centennial Bridge. Description The Bridge of the Americas crosses the Pacific approach to the Panama Canal at Balboa, near Panama City. It was built between 1959 and 1962 by the United States at a cost of US$20 million. From its completion in 1962 until the opening of the parallel Centennial Bridge in 2004, the Bridge of the Americas was a key part of the Pan-American Highway. The Bridge of the Americas greatly increases road traffic capacity across the Canal. Two earlier bridges cross the Canal, but they use moveable designs and have limited traffic capacity. These earlier ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Three Sisters (Pittsburgh)
The Three Sisters are three similar self-anchored suspension bridges spanning the Allegheny River in downtown Pittsburgh, Pennsylvania at 6th, 7th, and 9th streets, generally running north/south. The bridges have been given formal names to honor important Pittsburgh residents: * Roberto Clemente (Roberto Clemente Bridge, Sixth Street Bridge) * Andy Warhol (Andy Warhol Bridge, Seventh Street Bridge) * Rachel Carson (Rachel Carson Bridge, Ninth Street Bridge) Designed by the Allegheny County, Pennsylvania, Allegheny County Department of Public Works, they were all built in a four-year period, from 1924 to 1928, by the American Bridge Company, replacing earlier bridges of various designs at the same sites. Their construction was mandated by the United States Department of War, War Department, citing navigable river clearance concerns. They are constructed of steel, and use steel eyebars in lieu of cables. The Three Sisters are historically significant because they are the only tri ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bridges In Bolivia
A bridge is a structure built to span a physical obstacle (such as a body of water, valley, road, or rail) without blocking the way underneath. It is constructed for the purpose of providing passage over the obstacle, which is usually something that is otherwise difficult or impossible to cross. There are many different designs of bridges, each serving a particular purpose and applicable to different situations. Designs of bridges vary depending on factors such as the function of the bridge, the nature of the terrain where the bridge is constructed and anchored, and the material used to make it, and the funds available to build it. The earliest bridges were likely made with fallen trees and stepping stones. The Neolithic people built boardwalk bridges across marshland. The Arkadiko Bridge (dating from the 13th century BC, in the Peloponnese) is one of the oldest arch bridges still in existence and use. Etymology The ''Oxford English Dictionary'' traces the origin of the wo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bridges Completed In 2010
A bridge is a structure built to span a physical obstacle (such as a body of water, valley, road, or rail) without blocking the way underneath. It is constructed for the purpose of providing passage over the obstacle, which is usually something that is otherwise difficult or impossible to cross. There are many different designs of bridges, each serving a particular purpose and applicable to different situations. Designs of bridges vary depending on factors such as the function of the bridge, the nature of the terrain where the bridge is constructed and anchored, and the material used to make it, and the funds available to build it. The earliest bridges were likely made with fallen trees and stepping stones. The Neolithic people built boardwalk bridges across marshland. The Arkadiko Bridge (dating from the 13th century BC, in the Peloponnese) is one of the oldest arch bridges still in existence and use. Etymology The ''Oxford English Dictionary'' traces the origin of the wo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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