Parametric study and design of rib-reinforced steel moment connections

Chen, Cheng-Chih; Lu, Cheng A.; Lin, Chun Chou

doi:10.1016/j.engstruct.2004.12.007

Cited by 25 publications

(8 citation statements)

References 8 publications

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“…Su compilación se hizo mediante el programa Mendeley y se privilegiaron los documentos más recientes (el título citado más antiguo en este escrito es del año 2007). (Jabi, 2013) x x (Lyon Gottlieb & García Alvarado, 2011) x x (Marsault, 2018) x x (Cavieres, 2007) x x x (Alfageme García, 2016) x x x (Gonzales, 2018) x x (Lajas Benéitez, 2019) x x (Muttio, Botello, & Tapia, 2017) x x (Chen, Lu, & Lin, 2005) x x (Martínez-rocamora, Garcíaalvarado, Casanova- (Daicong, Xia, Guangyo, & Huang, 2017) x (Uarac, Cendoya, & Sanhueza, 2015) x Tabla 1. Tópicos abarcados en cada referencia bibliográfica En la segunda instancia de la investigación, se hicieron encuestas online (con preguntas abiertas y cerradas), a través de la plataforma SurveyMonkey, la cual fue respondida desde el 24 de agosto 2020 hasta el 11 septiembre de 2020.…”

Section: Metodología De Investigaciónunclassified

Applications of generative design in structural engineering

et al. 2021

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The traditional structural design produces elements that can be improved from the point of view of the use of the material. As a way of perfecting these processes, methodologies such as BIM have emerged, which, although they fulfill their mission of creating information models through collaborative work, their form of parameterization is still limited. In this context, the generative design emerges as a way of designing by stipulating the parameters and restrictions to be met so that the code then delivers different alternative solutions. This document aims to synthesize different generative design applications in structural engineering to extend its use in civil engineering. To achieve this, a literature review, and a survey of professionals in the area were used to obtain their opinion. As a result, seven application cases were obtained, where the main use identified for generative design is the optimization of the amount of material for structural elements. Besides, most of the respondents are unaware or have little knowledge of what this process is about, although, after understanding it, they believe it can be used in their professional practice.

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Section: Metodología De Investigaciónunclassified

Applications of generative design in structural engineering

et al. 2021

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“…2) Calculate the moment demand at the beam-column interface according to the bending moment distribution gradient on the beam: Where, parameter α is a multiplier and can be set to 1.1 based on the recommendation of Chen et al [25]. 4) Check the beam end reinforcement section based on the design flexural capacity Mcap,j:…”

Section: [(Hc-bf)/2+50]mentioning

confidence: 99%

Hysteretic Performance of Weak-Axis Connection With I-Shaped Plates in Steel Frame

2021

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This paper elucidates numerically the behavior of weak-axis moment connections proposed by welding I-shaped plates in the H-section column to increase connection strength and ductility in steel frame. After validating the numerical methods through comparing the results of numerical analysis and experiments, the effectiveness of the proposed weak-axis connection were examined through comparing to the traditional weak-axis connection. The proposed weak-axis connection could move the highest stresses away from the start-stop points of a weld, and thus preventing the premature brittle fracture of the beam flange welds. The plastic hinge formed away from the beam-column interface, while the local buckling occurred in the weld access holes region in the traditional weak-axis connection. The proposed weak-axis connections can be classified as rigid in a strong-bracing system, and be classified as semi-rigid in weak-supported or unsupported system. And then a series of parametric studies was conducted to better understand the behavior of proposed weak-axis moment connections. The force-displacement relationships, location of the plastic hinge, Mises index (MI), triaxiality index (TI) and rupture index (RI) distributions at the beam flange welds were reported in detail. According to the numerical analysis, the design variables of I-shaped plates and widened flange plate are suggested, along with a design procedure.

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“…17) are shown. However, from the equations (10) and (11) and the Figs. 16 and 17, it can be observed the existence of linear relationships between M A and θ A and between Y A and v A .…”

Section: Semi-rigid Stiffness Identifi-cationmentioning

confidence: 99%

Mechanical Behavior of Three-Dimensional Nailing Plates Joints: Experiment and Numerical Design

Taazount

Bouchaïr

2009

Structural Eng./Earthquake Eng.

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The aim of this study is to characterize the mechanical behavior of connections timber-to-timber joist hangers with specific nail fasteners. The methodology proposed by technical design standards is based on the hypothesis of an elastic and linear joint behavior. However, the local behavior of joint is semirigid characterized by the ductility of wood material in embedment and the non linear behavior of the nail fasteners in bending. Hence, in this study, the combination of a comprehensive experimental setup and a numerical approach is developed to analyze the evolution of the forces in the joint. Firstly, various tests are realized on specific nail fasteners, using different glulam species, in accordance with European test standards. They concern the withdrawal push-out test, the single plane shear and the yield bending moment. Besides, the adequacy of the methodology proposed by Eurocode 5 for dowel-type fasteners is discussed. Secondly, a similar investigation is carried out on a whole timber-to-timber joint, with nailed tridimensional metal plates. Considering the hypothesis of a semi-rigid behavior of the joint, the stiffness of each fastener is identified in tension and shear slips. Finally, a finite element model is applied and discussed considering the fasteners represented by bi-directional mechanical springs. The stiffness of each spring is considered as the slip modulus of each fastener defined by tests. A semi-rigid formulation was adopted and the overall joint behavior is apprehended numerically.

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Parametric study and design of rib-reinforced steel moment connections

Cited by 25 publications

References 8 publications

Applications of generative design in structural engineering

Applications of generative design in structural engineering

Hysteretic Performance of Weak-Axis Connection With I-Shaped Plates in Steel Frame

Mechanical Behavior of Three-Dimensional Nailing Plates Joints: Experiment and Numerical Design

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