Study of global stability of tall buildings with prestressed slabs
The use of prestressed concrete flat slabs in buildings has been increasing in recent years in the Brazilian market. Since the implementation of tall and slender buildings a trend in civil engineering and architecture fields, arises from the use of prestressed slabs a difficulty in ensuring the over...
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Instituto Brasileiro do Concreto (IBRACON)
|
| Series: | Revista IBRACON de Estruturas e Materiais |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1983-41952015000200196&lng=en&tlng=en |
| _version_ | 1818970057511796736 |
|---|---|
| author | L. A. Feitosa E. C. Alves |
| author_facet | L. A. Feitosa E. C. Alves |
| author_sort | L. A. Feitosa |
| collection | DOAJ |
| description | The use of prestressed concrete flat slabs in buildings has been increasing in recent years in the Brazilian market. Since the implementation of tall and slender buildings a trend in civil engineering and architecture fields, arises from the use of prestressed slabs a difficulty in ensuring the overall stability of a building without beams. In order to evaluate the efficiency of the main bracing systems used in this type of building, namely pillars in formed "U" in elevator shafts and stairs, and pillars in which the lengths are significantly larger than their widths, was elaborated a computational models of fictional buildings, which were processed and analyzed using the software CAD/TQS. From the variation of parameters such as: geometry of the pillars, thick slabs, characteristic strength of the concrete, reduceofthe coefficient of inertia for consideration of non-linearities of the physical elements, stiffness of the connections between slabs and pillars, among others, to analyze the influence of these variables on the overall stability of the building from the facing of instability parameter Gama Z, under Brazilian standard NBR 6118, in addition to performing the processing of building using the P-Delta iterative calculation method for the same purpose. |
| first_indexed | 2024-12-20T14:30:26Z |
| format | Article |
| id | doaj.art-2523b68c51e4408da22d7ee65c6a042b |
| institution | Directory Open Access Journal |
| issn | 1983-4195 |
| language | English |
| last_indexed | 2024-12-20T14:30:26Z |
| publisher | Instituto Brasileiro do Concreto (IBRACON) |
| record_format | Article |
| series | Revista IBRACON de Estruturas e Materiais |
| spelling | doaj.art-2523b68c51e4408da22d7ee65c6a042b2022-12-21T19:37:37ZengInstituto Brasileiro do Concreto (IBRACON)Revista IBRACON de Estruturas e Materiais1983-41958219622410.1590/S1983-41952015000200008S1983-41952015000200196Study of global stability of tall buildings with prestressed slabsL. A. FeitosaE. C. AlvesThe use of prestressed concrete flat slabs in buildings has been increasing in recent years in the Brazilian market. Since the implementation of tall and slender buildings a trend in civil engineering and architecture fields, arises from the use of prestressed slabs a difficulty in ensuring the overall stability of a building without beams. In order to evaluate the efficiency of the main bracing systems used in this type of building, namely pillars in formed "U" in elevator shafts and stairs, and pillars in which the lengths are significantly larger than their widths, was elaborated a computational models of fictional buildings, which were processed and analyzed using the software CAD/TQS. From the variation of parameters such as: geometry of the pillars, thick slabs, characteristic strength of the concrete, reduceofthe coefficient of inertia for consideration of non-linearities of the physical elements, stiffness of the connections between slabs and pillars, among others, to analyze the influence of these variables on the overall stability of the building from the facing of instability parameter Gama Z, under Brazilian standard NBR 6118, in addition to performing the processing of building using the P-Delta iterative calculation method for the same purpose.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1983-41952015000200196&lng=en&tlng=englobal stabilityanalysis of 2nd orderGama ZP-Deltaprestressed slabs |
| spellingShingle | L. A. Feitosa E. C. Alves Study of global stability of tall buildings with prestressed slabs Revista IBRACON de Estruturas e Materiais global stability analysis of 2nd order Gama Z P-Delta prestressed slabs |
| title | Study of global stability of tall buildings with prestressed slabs |
| title_full | Study of global stability of tall buildings with prestressed slabs |
| title_fullStr | Study of global stability of tall buildings with prestressed slabs |
| title_full_unstemmed | Study of global stability of tall buildings with prestressed slabs |
| title_short | Study of global stability of tall buildings with prestressed slabs |
| title_sort | study of global stability of tall buildings with prestressed slabs |
| topic | global stability analysis of 2nd order Gama Z P-Delta prestressed slabs |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1983-41952015000200196&lng=en&tlng=en |
| work_keys_str_mv | AT lafeitosa studyofglobalstabilityoftallbuildingswithprestressedslabs AT ecalves studyofglobalstabilityoftallbuildingswithprestressedslabs |