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Raising Of Chicago
During the 1850s and 1860s, engineers carried out a piecemeal raising of the level of central Chicago to lift it out of low-lying swampy ground. Streets, sidewalks, and buildings were physically raised on jackscrews. The work was funded by private property owners and public funds. Background During the 19th century, the elevation of the Chicago area was little higher than the shoreline of Lake Michigan, so for many years, there was little or no naturally occurring drainage from the city surface. The lack of drainage caused unpleasant living conditions, and standing water harbored pathogens that caused numerous epidemics including typhoid fever and dysentery, which blighted Chicago six years in a row, culminating in the 1854 outbreak of cholera that killed six percent of the city’s population. The crisis forced the city's engineers and aldermen to take the drainage problem seriously and after many heated discussions—and following at least one false start—a solution event ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chicago
(''City in a Garden''); I Will , image_map = , map_caption = Interactive Map of Chicago , coordinates = , coordinates_footnotes = , subdivision_type = Country , subdivision_name = United States , subdivision_type1 = State , subdivision_type2 = Counties , subdivision_name1 = Illinois , subdivision_name2 = Cook and DuPage , established_title = Settled , established_date = , established_title2 = Incorporated (city) , established_date2 = , founder = Jean Baptiste Point du Sable , government_type = Mayor–council , governing_body = Chicago City Council , leader_title = Mayor , leader_name = Lori Lightfoot ( D) , leader_title1 = City Clerk , leader_name1 = Anna Valencia ( D) , unit_pref = Imperial , area_footnotes = , area_tot ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Foundation (engineering)
In engineering, a foundation is the element of a structure which connects it to the ground, transferring loads from the structure to the ground. Foundations are generally considered either shallow or deep. Foundation engineering is the application of soil mechanics and rock mechanics (geotechnical engineering) in the design of foundation elements of structures. Purpose Foundations provide the structure's stability from the ground: * To distribute the weight of the structure over a large area in order to avoid overloading the underlying soil (possibly causing unequal settlement). * To anchor the structure against natural forces including earthquakes, floods, droughts, frost heaves, tornadoes and wind. * To provide a level surface for construction. * To anchor the structure deeply into the ground, increasing its stability and preventing overloading. * To prevent lateral movements of the supported structure (in some cases). Requirements of a good foundation The design and the c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Seattle Underground
The Seattle Underground is a network of underground passageways and basements in the Pioneer Square neighborhood of Seattle, Washington, United States. They were located at ground level when the city was built in the mid-19th century but fell into disuse after the streets were elevated. In recent decades, they have become a tourist attraction, with guided tours taking place around the area. History After the Great Seattle Fire of June 6, 1889, new construction was required to be of masonry, and the town's streets were regraded one to two stories higher. Pioneer Square had originally been built mostly on filled-in tidelands and often flooded. The new street level also kept sewers draining into Elliott Bay from backing up at high tide. For the regrade, the streets were lined with concrete walls that formed narrow alleyways between the walls and the buildings on both sides of the street, with a wide "alley" where the street was. The naturally steep hillsides were used and, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Regrading In Seattle
The topography of central Seattle was radically altered by a series of regrades in the city's first century of urban settlement, in what might have been the largest such alteration of urban terrain at the time. The heart of Seattle, largest city in the state of Washington, is on an isthmus between the city's chief harbor—the saltwater Elliott Bay (an inlet of Puget Sound)—and the fresh water of Lake Washington. Capitol Hill, First Hill, and Beacon Hill collectively constitute a ridge along this isthmus (see Seven hills of Seattle). In addition, at the time the city was founded, the steep Denny Hill stood in the area now known as Belltown or the Denny Regrade. When European settlers first came to Seattle in the early 1850s, the tides of Elliott Bay lapped at the base of Beacon Hill. The original location of the settlement that became Seattle—today's Pioneer Square—was a low-lying island. A series of regrades leveled paths for roads, demolished Denny Hill, and turned ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Madison Street (Chicago)
Madison Street is a major east–west street in Chicago, Illinois. Prior to human intervention, the Chicago River emptied into Lake Michigan at the present day intersection of Madison Street and Michigan Avenue (Chicago), Michigan Avenue. Per a 1908 decision by Chicago's city council, Madison serves as the north–south dividing line for Chicago's Streets and highways of Chicago, street numbering system, while State Street (Chicago), State Street serves as the east–west line. At one point, the intersection between the two streets was considered the "world's busiest corner." Notable buildings located along Madison Street include the Carson, Pirie, Scott and Company Building, Chase Tower (Chicago), Chase Tower, Three First National Plaza, the Chicago Civic Opera House, Citigroup Center (Chicago), Citigroup Center and the United Center. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Structure Relocation
A structure relocation is the process of moving a structure from one location to another. There are two main ways for a structure to be moved: disassembling and then reassembling it at the required destination, or transporting it whole. For the latter, the building is first raised and then may be pushed on temporary rails or dollies if the distance is short. Otherwise, wheels, such as flatbed trucks, are used. These moves can be complicated and require the removal of protruding parts of the building, such as the chimney, as well as obstacles along the journey, such as overhead cables and trees. Reasons for moving a building range from commercial reasons such as scenery to preserving an important or historic building. Moves may also be made simply at the whim of the owner, or to separate a building from the plot of land on which it stands. Equipment Elevating a whole structure is typically done by attaching a temporary steel framework under the structure to support the structure ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Framing (construction)
Framing, in construction, is the fitting together of pieces to give a structure support and shape. Framing materials are usually wood, engineered wood, or structural steel. The alternative to framed construction is generally called ''mass wall'' construction, where horizontal layers of stacked materials such as log building, masonry, rammed earth, adobe, etc. are used without framing. Building framing is divided into two broad categories, heavy-frame construction (heavy framing) if the vertical supports are few and heavy such as in timber framing, pole building framing, or steel framing; or light-frame construction (light-framing) if the supports are more numerous and smaller, such as balloon, platform, or light-steel framing. Light-frame construction using standardized dimensional lumber has become the dominant construction method in North America and Australia due to the economy of the method; use of minimal structural material allows builders to enclose a large area at mini ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Briggs House
Briggs may refer to: People * Briggs (surname) * Briggs (rapper), Australian rapper Places ;In the United States * Briggs, Nebraska, an unincorporated community * Briggs, Ohio * Briggs, Oklahoma * Briggs, Texas * Briggs, Virginia * Briggs Lake, a lake in Minnesota ;Elsewhere * Briggs Islet, Tasmania, Australia * Briggs Township, Ontario, Canada ;In space * Briggs (crater), a lunar crater * 4209 Briggs, an asteroid discovered in 1986 Other uses * Briggs & Stratton, a manufacturer of air-cooled gasoline engines * ''Briggs v. Elliott'', one of the school segregation cases consolidated with ''Brown v. Board of Education'' * Briggs Automotive Company or BAC, a car manufacturing company * Briggs Initiative, either of two pieces of Californian legislation sponsored by John Briggs * Briggs Manufacturing Company, manufacturer of car bodies for Ford and Chrysler * The Briggs, a punk rock band * Myers–Briggs Type Indicator In Personality type, personality typology, the Myers–Brigg ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
San Francisco, California
San Francisco (; Spanish for " Saint Francis"), officially the City and County of San Francisco, is the commercial, financial, and cultural center of Northern California. The city proper is the fourth most populous in California and 17th most populous in the United States, with 815,201 residents as of 2021. It covers a land area of , at the end of the San Francisco Peninsula, making it the second most densely populated large U.S. city after New York City, and the fifth most densely populated U.S. county, behind only four of the five New York City boroughs. Among the 91 U.S. cities proper with over 250,000 residents, San Francisco was ranked first by per capita income (at $160,749) and sixth by aggregate income as of 2021. Colloquial nicknames for San Francisco include ''SF'', ''San Fran'', ''The '', ''Frisco'', and ''Baghdad by the Bay''. San Francisco and the surrounding San Francisco Bay Area are a global center of economic activity and the arts and sciences, spurred ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hydraulics
Hydraulics (from Greek: Υδραυλική) is a technology and applied science using engineering, chemistry, and other sciences involving the mechanical properties and use of liquids. At a very basic level, hydraulics is the liquid counterpart of pneumatics, which concerns gases. Fluid mechanics provides the theoretical foundation for hydraulics, which focuses on the applied engineering using the properties of fluids. In its fluid power applications, hydraulics is used for the generation, control, and transmission of power by the use of pressurized liquids. Hydraulic topics range through some parts of science and most of engineering modules, and cover concepts such as pipe flow, dam design, fluidics and fluid control circuitry. The principles of hydraulics are in use naturally in the human body within the vascular system and erectile tissue. Free surface hydraulics is the branch of hydraulics dealing with free surface flow, such as occurring in rivers, canals, lakes, estuar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sidewalk
A sidewalk (North American English), pavement (British English), footpath in Australia, India, New Zealand and Ireland, or footway, is a path along the side of a street, street, highway, terminals. Usually constructed of concrete, pavers, brick, stone, or asphalt, it is designed for pedestrians. A sidewalk is normally higher than the carriageway, roadway, and separated from it by a kerb (spelled "curb" in North America). There may also be a Road verge, planted strip between the sidewalk and the roadway and between the roadway and the adjacent land. In some places, the same term may also be used for a paved path, trail or footpath that is not next to a road, for example, a path through a park. Terminology The term "sidewalk" is preferred in most of North America. The term "pavement" is more common in the United Kingdom and other members of the Commonwealth of Nations, as well as parts of the Mid-Atlantic United States such as Philadelphia and parts of New Jersey. Many Commonwea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cast-iron Architecture
Cast-iron architecture is the use of cast iron in buildings and objects, ranging from bridges and markets to warehouses, balconies and fences. Refinements developed during the Industrial Revolution in the late 18th century made cast iron relatively cheap and suitable for a range of uses, and by the mid-19th century it was common as a structural material (and sometimes for entire buildings), and particularly for elaborately patterned architectural elements such as fences and balconies, until it fell out of fashion after 1900 as a decorative material, and was replaced by modern steel and concrete for structural purposes. Structural use Cast iron is not a good structural material for handling tension or bending moments because of its brittleness and relatively low tensile strength compared to steel and wrought iron. However, cast iron does have good compressive strength and was successfully used for structural components that were largely in compression in well-designed bridges and b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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