Top Down Construction can be used- Distance between Boundary wall of Adjacent Existing Building and Building Line for New Building is too close and the depth of excavation is more than 6 me…Full description
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2.6 disadvantages of top-down construction
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METODO CONSTRUCTIVO TOP DOWNDescripción completa
TEKOM
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Descripción: Metodología para diseño de redes usada en cisco Top Down
it compare two methods between top down and bottom upDeskripsi lengkap
Modelo ascendente o bottom up (Gough, 1972)El primero es el modelo ascendente o –bottom up. En él, la persona comienza por las letras y los conjuntos de éstas, en un proceso que va aumentand…Descripción completa
Top donw Tilt upDescripción completa
Dalam melaksanakan pembagunan gedung bertingkat atau bertingkat banyak kita kenal dengan beberapa metode pelaksanaan. Mohon jelaskan apa perbedaan: Sistem Konvensional, Sistem Top Down, dan …Full description
it compare two methods between top down and bottom up
Metode top-down merupakana cara pelaksanaan pembangunan gedung yang memulai pembangunan dari lantai teratas, kemudian dilanjutkan ke lantai dibawahnya lapis demi lapis, hingga mencapai kedal…Deskripsi lengkap
construction
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The Strengths and Weaknesses of the Top Down Approach The Strengths and Weaknesses of the Top Down Approach
Bore-pile (usually by previous foundation contractor) as foundation for future building (blue area is concrete filled as pile)
Illustration to explain the construction of basement using top-down method
Ground level (excavation not started yet) Cut-off wall Steel stanchion place onto bore pile as temporary support for basement construction Future basement formation level
Bore-pile as foundation for future building
Steel casing (tube)
Steel stanchion (column)
Steel base
Steel base embedded into concrete for future connection of steel stanchion by welding
Bore pile
Connection between steel stanchion and bore pile
Steel stanchion (column) placed on top of the bore pile as support for top-down basement as well as permanent column for future structure
Ground level First level of excavation to allow construction of the ground floor slab Cut-off wall Future basement formation level
Bore-pile
Ground floor slab being construction and serve also as lateral support to the cut off wall First level of excavation to allow construction of the ground floor slab Cut-off wall
Future basement formation level
Completion of the ground floor slab and start to excavate downward for the first basement using the steel stanchions as support
Completion of the ground floor slab and start to excavate downward for the first basement using the steel stanchions as support
Superstructure can be constructed at the same time upon completion of the ground floor slab Ground floor slab being constructed and serve also as lateral support to the cut off wall Second level of excavation to allow construction of the first basement slab
Future basement formation level
Ground floor and first basement slab being constructed
Future basement formation level
Excavation repeated until the completion of the entire basement
Excavation and construction of the basement slab using double-bit arrangement
Other work reality in top-down basement – congested work environment,
Cast the basement wall and encase the steel stanchion to become permanent columns, all using formwork and reinforced concrete
Basement steel stanchion finally encased with reinforced concrete to become permanent column
