Zobrazeno 1 - 10
of 33
pro vyhledávání: '"M. K. EL DEBS"'
Autor:
A. M. D. SOUSA, M. K. EL DEBS
Publikováno v:
Revista IBRACON de Estruturas e Materiais, Vol 12, Iss 3, Pp 658-693 (2019)
Abstract Concentrated loads in slabs without transverse reinforcement, usual in highway bridges, result in the horizontal spreading of the shear force towards the supports, situation in which not all the slab width contributes in the shear strength.
Externí odkaz:
https://doaj.org/article/5ad80080f9d948e1b7306e96d2d3aec9
Publikováno v:
Revista IBRACON de Estruturas e Materiais, Vol 10, Iss 6, Pp 1192-1204 (2017)
Abstract During construction of precast girder bridges, there is the concern on rollover instability of the beams when exclusively supported by elastomeric bearing pads. This type of failure has been the focus of recent research due several accidents
Externí odkaz:
https://doaj.org/article/48dbb4f735bf42faaea59cbded21897c
Publikováno v:
Revista IBRACON de Estruturas e Materiais, Vol 9, Iss 3, Pp 414-434
ABSTRACT This research aims to analyze the compressive stress transfer between precast concrete elements using cement mortar pads modified with polypropylene fibers, styrene-butadiene latex and heat-expanded vermiculite. The stress transfer analyses
Externí odkaz:
https://doaj.org/article/2f68ba2a8ce140eab25314f603767e10
Publikováno v:
Revista IBRACON de Estruturas e Materiais, Vol 4, Iss 2, Pp 304-323
Esse trabalho apresenta a comparação de resultados experimentais e teóricos de uma nova formulação para o projeto da base de pilares pré-moldados embutidos em cálice de fundação com interfaces lisas. Através do modelo de bielas e tirantes p
Externí odkaz:
https://doaj.org/article/acd03dcc256441b7ae1647cc8834e05b
Publikováno v:
Revista IBRACON de Estruturas e Materiais, Vol 9, Iss 3, Pp 435-470
ABSTRACT The main objective of this paper is performing a comparative analysis of some design models for precast concrete corbels. For this, it was analyzed design models from Brazilian (NBR 9062) and European (EUROCODE 2) Codes and a US design handb
Externí odkaz:
https://doaj.org/article/b08151bf3e7d49f1a4e936aa7c612500
Autor:
M. C. Marin, M. K. El Debs
Publikováno v:
Revista IBRACON de Estruturas e Materiais, Vol 5, Iss 3, Pp 316-342
This study deals with the reduction of the stiffness in precast concrete structural elements of multi-storey buildings to analyze global stability. Having reviewed the technical literature, this paper present indications of stiffness reduction in dif
Externí odkaz:
https://doaj.org/article/c07b4a71e64c4dc8878a1b8c2b7473cf
Autor:
M. K. El Debs, E.K. Bellucio
Publikováno v:
Revista IBRACON de Estruturas e Materiais, Vol 5, Iss 1, Pp 39-67
Bearing pads are used in precast concrete connections to avoid concentrated stresses in the contact area between the precast elements. In the present research, the bearing pads are Portland cement mortar with styrene-butadiene latex (SB), lightweight
Externí odkaz:
https://doaj.org/article/357ed173de764cb4bf03fc53e98c9b92
Publikováno v:
Revista IBRACON de Estruturas e Materiais, Vol 5, Iss 2, Pp 182-218
The present work proposes design models and recommendations for column-foundation connection through socket with rough interfaces, including the shear key configuration, the socket and the precast column base. In the experimental investigations, the
Externí odkaz:
https://doaj.org/article/4cacdd817b7548989458b2076f8ba730
Publikováno v:
Revista IBRACON de Estruturas e Materiais, Vol 8, Iss 6, Pp 763-774
Abstract This paper presents recommendations for security check of precast beams in transitory phases, compare results of parametric analyzes with national and international code recommendations and confront the formulations used for the calculation
Externí odkaz:
https://doaj.org/article/76fabf1cc30d4b0c81f6f63333fbd95b
Publikováno v:
Revista IBRACON de Estruturas e Materiais, Vol 1, Iss 4, Pp 314-330
Com a teoria da confiabilidade avaliam-se as duas formulações apresentadas pela norma de projeto de estruturas de concreto NBR 6118:2003 para a estimativa da abertura de fissuras em tubos de concreto armado. Os métodos de confiabilidade FOSM (mét
Externí odkaz:
https://doaj.org/article/adaefa8a1f074d48893244a5cc797a51