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Montalbán Residential Complex
Caracas, Venezuela Architecture: Fundacaracas Construction Area: 30.000 m2 (32291 sf) Sector: Residential Scope: Structural Engineering Project Project Year: 2013 |
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The project is made up of five 14-story residential towers, three 4-story towers and a lower body that contains buildings for various uses. The complex consists of 257 homes, in a total construction area of 29,160 m2. The vertical circulation modules are located in the center of each tower and access to them is through the public plazas on the ground floor. The construction system specified by the client is the so-called tunnel type for residential buildings, and a metal structure for other buildings contemplated.
In total the entire set includes:
5 buildings (14 floors) – 3 Buildings (3 floors) – School – Gym – Public Library – Market – Pedestrian ramp
In total the entire set includes:
5 buildings (14 floors) – 3 Buildings (3 floors) – School – Gym – Public Library – Market – Pedestrian ramp
Reinforced Concrete Structure:
The five 14-story towers are buildings made up of structural walls built with a tunnel-type system, which will serve to support the gravitational loads generated by the mezzanines and to resist the lateral loads generated by seismic and wind actions.
Each tower is approximately 36 m high and is made up of a central core where there are two elevators and stairs.
The seismic design philosophy of the walls is to guarantee, through detailing, ductile behavior at the base of the walls, through the formation of plastic hinges that guarantee energy dissipation without compromising the integrity of the elements.
The structural walls used in these buildings were designed based on capacity design procedures and principles and in compliance with the provisions of Covenin 1753 and ACI-318 specifications.
A linear modal spectral analysis is carried out with a seismic response reduction coefficient of R=3, reducing the maximum value allowed by standard 1756 for this typology, since there have been no moderate to strong seismic events in Venezuela where the response can be recorded. seismic analysis of tunnel-type buildings.
The reactions in the foundation beams are amplified by an over-resistance factor, to assume an elastic behavior in their design.
A system of deep foundations made up of piles was adopted based on the recommendation of the geotechnical study.
The piles are joined at their end through foundation beams or continuous caps, which were designed assuming rigid behavior.
The five 14-story towers are buildings made up of structural walls built with a tunnel-type system, which will serve to support the gravitational loads generated by the mezzanines and to resist the lateral loads generated by seismic and wind actions.
Each tower is approximately 36 m high and is made up of a central core where there are two elevators and stairs.
The seismic design philosophy of the walls is to guarantee, through detailing, ductile behavior at the base of the walls, through the formation of plastic hinges that guarantee energy dissipation without compromising the integrity of the elements.
The structural walls used in these buildings were designed based on capacity design procedures and principles and in compliance with the provisions of Covenin 1753 and ACI-318 specifications.
A linear modal spectral analysis is carried out with a seismic response reduction coefficient of R=3, reducing the maximum value allowed by standard 1756 for this typology, since there have been no moderate to strong seismic events in Venezuela where the response can be recorded. seismic analysis of tunnel-type buildings.
The reactions in the foundation beams are amplified by an over-resistance factor, to assume an elastic behavior in their design.
A system of deep foundations made up of piles was adopted based on the recommendation of the geotechnical study.
The piles are joined at their end through foundation beams or continuous caps, which were designed assuming rigid behavior.
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Steel structure:
The metal structures presented in the project are made up of European laminated profiles and rectangular and square tubular profiles.
The width-thickness relationships of the profiles used were verified for the earthquake-resistant design based on AISC 341 regulations.
The mezzanines are made up of mixed steel-concrete slabs and shear connectors, which ensure mixed action behavior.
The earthquake-resistant systems were made up of frames with concentric diagonals (SCBF AISC-341-10) and with special moment frames (SMF AISC-341-10). In the case of braced frames, inelastic deformations are accepted in the bracing elements, while the columns, beams and connections remain elastic. The special frames accept alternating incursions into the inelastic range in the beams assuming the formation of plastic hinges.
The metal structures presented in the project are made up of European laminated profiles and rectangular and square tubular profiles.
The width-thickness relationships of the profiles used were verified for the earthquake-resistant design based on AISC 341 regulations.
The mezzanines are made up of mixed steel-concrete slabs and shear connectors, which ensure mixed action behavior.
The earthquake-resistant systems were made up of frames with concentric diagonals (SCBF AISC-341-10) and with special moment frames (SMF AISC-341-10). In the case of braced frames, inelastic deformations are accepted in the bracing elements, while the columns, beams and connections remain elastic. The special frames accept alternating incursions into the inelastic range in the beams assuming the formation of plastic hinges.
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