Análise numérica de blocos sobre duas estacas com cálice embutido submetido à ação de força horizontal

Delalibera, Rodrigo Gustavo; Silva, Wellington Andrade da; Giongo, José Samuel

doi:10.14393/19834071.2014.26852

Cited by 1 publication

(5 citation statements)

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“…For the parametric studies about the influence of embedded length (4.3) and wall thickness (4.4) on the reinforcement of the socket base was chosen the cross section 40x40 cm 2 for the column and the loads applied of the case studies from Table 4. First, it is analyzed the case study 1 under the influence of the increase of the embedded length, due it is the only of cases with oblique flexion.…”

Section: Influence Of the Embedded Length (ℓ Emb )mentioning

confidence: 99%

“…This reinforcement must be disposed also in the other 3 walls centers. Figure 14 shows the abacuses for the calculation of the reinforcement of the socket base considering the wall thickness equal to 15 cm, the section of the column of 25 x 25 cm 2 and concrete with strength of 25 MPa. The abacus concerning the calculation of the main horizontal reinforcement is shown in Figure 14a, where it is observed the minimum necessary reinforcement for each embedded length displayed in red, and that the main horizontal reinforcement is a direct function of the intensity of upper resultant force.…”

Section: R Pieralisi | R D Machadomentioning

confidence: 99%

“…Figure 1a illustrates the case where the socket is placed external to the foundation block. According to DELALIBERA & GIONGO [2] the socket placed external and partially embedded to the foundation block are more common in Brazilian construction. The connection by 'plate base' (see Figure 1b) is similar as the one used in metallic column connection.…”

Section: Introductionmentioning

confidence: 99%

“…CARVALHO & CANHA [7] analyzed the behavior of the connection between a column and a foundation by socket base (totally embedded in the foundation block) using a truss method, the authors considered that the foundation block was fixed on the top of two piles. This type of connection was a subject of study of DELAIBERA & GIONGO [2]. DELAIBERA & GIONGO [2] analyzed the stress distribution in the rebar and the structural behavior of the connection with different geometries using numerical models.…”

Section: Introductionmentioning

confidence: 99%

“…This type of connection was a subject of study of DELAIBERA & GIONGO [2]. DELAIBERA & GIONGO [2] analyzed the stress distribution in the rebar and the structural behavior of the connection with different geometries using numerical models. on the use of socket base with rough interfaces, CANHA et al [8] proposed a model and recommendations for the calculation of this connection in order to be a monolithic.…”

Section: Introductionmentioning

confidence: 99%

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Influence of standard recommendations for the calculation of the column-base connection by socket according to ABNT NBR 9062:2006

Pieralisi

Machado

2017

Rev. IBRACON Estrut. Mater.

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ResumoThis work studies the column-base connection by external socket in precast structures. A parametric study of the geometric characteristics of the external socket base with smooth interface is presented. In this parametric study, the consumption of concrete and steel are analyzed. The column cross section, the embedded length of the column in the socket base and the thickness of the wall of the socket base were the variables considered in this study. It was observed that with the increase of the embedded length, the minimum cross section of the main horizontal reinforcement reduces. With this modification, the walls of the socket base that are perpendicular to the direction of the applied loads presented a reduction of their stiffness. Besides the parametric study, this paper presents a verification model. This part of the study shows the possibility to generate abacuses that simplifies the project of the socket base foundation. Moreover, a comparative analysis becomes easier to be accomplished.Keywords: socket base foundation, embedded length, wall thickness, parametric study, verification model. Este trabalho é dedicado ao estudo da ligação entre o pilar e a fundação por meio de cálice externo em estruturas de concreto pré-moldadas. Apresenta-se um estudo paramétrico envolvendo as características geométricas que influenciam no consumo de concreto e principalmente do aço em ligações com interface lisa. As variáveis consideradas são a seção transversal do pilar, o comprimento de embutimento do pilar no cálice e a espessura da parede do cálice. Observa-se que o aumento do comprimento de embutimento diminui a seção transversal mínima de armadura horizontal principal, o que torna as paredes perpendiculares a atuação dos esforços solicitantes mais frágeis. Além do estudo paramétrico, este trabalho também apresenta um modelo de verificação que mostra a possibilidade da geração de ábacos que facilite tanto o projeto de cálices de fundação quanto uma análise comparativa.Palavras-chave: cálice de fundações, comprimento de mebutimento, espessura da parede, estudo parametrico, modelo de vevrificação.

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Section: Influence Of the Embedded Length (ℓ Emb )mentioning

confidence: 99%

Section: R Pieralisi | R D Machadomentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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