A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Innovative Structural Solutions For Tall Buildings
The main contribution of this work is to investigate and analyze innovative structural solutions for tall buildings, aiming for efficiency and improvement of the structural response mainly under horizontal loads. Following the recent trends in tall buildings design practice, the first analyzed structural scheme is the Diagrid system, a perimeter structural configurations characterized by a narrow grid of diagonals members which are involved both in gravity and lateral load resistance. Several studies have been carried out with the aim of completely understand the structural behavior of the Diagrid system, propose design procedure able to maximize the structural efficiency and deepen some specific (local) structural behavior, essential for a precise structural design. The proposed considerations and design procedure have been validate through the results of a great number of finite element analysis, checking the structural performance and the efficiency of the different structural solution mainly using the structural weight as response parameter. Furthermore a feasibility study is proposed for structural systems characterized by geometries different form the rectangular or triangular shapes. A structure obtained by replication of hexagons is proposed (Hexagrid), focusing on the efficiency and on the feasibility of this solution. The study of the structural behavior of the Hexagrid has represented the opportunity to formulate a design procedure based on the homogenization criteria and, in particular, on the definition of a "Representative Volume Element" (RVE). This procedure has the great advantage of be able to be adopted for every geometric patterns, simply varying the mechanical proprieties of the homogenized material. Finally thanks to an effective collaboration with the well-known International firm Skidmore, Owings & Merrill, the structural design of a real tall building with an optimized frame is reported, firstly evaluating the building performance and issues, and then comparing the optimized structures with more traditional structural solutions. This final part gives the opportunity to better highlight the compromise between the practice and the theory, and to understand in particular how the optimum design (i.e. the most efficient solutions) should be modified to mediate with different issues.
Innovative Structural Solutions For Tall Buildings
The main contribution of this work is to investigate and analyze innovative structural solutions for tall buildings, aiming for efficiency and improvement of the structural response mainly under horizontal loads. Following the recent trends in tall buildings design practice, the first analyzed structural scheme is the Diagrid system, a perimeter structural configurations characterized by a narrow grid of diagonals members which are involved both in gravity and lateral load resistance. Several studies have been carried out with the aim of completely understand the structural behavior of the Diagrid system, propose design procedure able to maximize the structural efficiency and deepen some specific (local) structural behavior, essential for a precise structural design. The proposed considerations and design procedure have been validate through the results of a great number of finite element analysis, checking the structural performance and the efficiency of the different structural solution mainly using the structural weight as response parameter. Furthermore a feasibility study is proposed for structural systems characterized by geometries different form the rectangular or triangular shapes. A structure obtained by replication of hexagons is proposed (Hexagrid), focusing on the efficiency and on the feasibility of this solution. The study of the structural behavior of the Hexagrid has represented the opportunity to formulate a design procedure based on the homogenization criteria and, in particular, on the definition of a "Representative Volume Element" (RVE). This procedure has the great advantage of be able to be adopted for every geometric patterns, simply varying the mechanical proprieties of the homogenized material. Finally thanks to an effective collaboration with the well-known International firm Skidmore, Owings & Merrill, the structural design of a real tall building with an optimized frame is reported, firstly evaluating the building performance and issues, and then comparing the optimized structures with more traditional structural solutions. This final part gives the opportunity to better highlight the compromise between the practice and the theory, and to understand in particular how the optimum design (i.e. the most efficient solutions) should be modified to mediate with different issues.
Innovative Structural Solutions For Tall Buildings
Montuori, Giovanni Maria (author)
2015-03-30
doi:10.6092/UNINA/FEDOA/10240
Theses
Electronic Resource
Italian , English
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