scholarly journals LATERAL BEHAVIOUR OF STEEL FRAMES WITH PRECAST REINFORCED CONCRETE EXTERIOR INFILL PANELS

2019 ◽  
Author(s):  
ASHRAF OSMAN ◽  
MOHAMED G. KHERD
Keyword(s):  
Reinforced Concrete ◽  
Steel Frames ◽  
Infill Panels

The Plastic Hinge

2015 ◽  
pp. 172-230
Keyword(s):  
Reinforced Concrete ◽  
Structural Analysis ◽  
Plastic Hinge ◽  
Steel Frames ◽  
Concrete Structures ◽  
Reinforced Concrete Structures ◽  
Plastic Hinges

The plastic hinge is a key concept of the theory of frames that differentiates this theory from the remaining models for structural analysis. This chapter is exclusively dedicated to define this concept and describe the different models of plastic hinges. It also discusses the differences of implementation between plastic hinges in steel frames (Sections 6.1-6.4) and those in reinforced concrete structures (Sections 6.5-6.6). This chapter is based on the ideas presented in Chapter 5 and it allows formulating the models for elasto-plastic frames that are introduced in the next chapter.

Behaviour of headed studs subjected to cyclic shear in steel frames with reinforced concrete infill walls

2020 ◽  
Vol 262 ◽  
pp. 120018
Author(s):  
L. Pallarés ◽  
A. Agüero Ramon-Llin ◽  
J.R. Martí-Vargas ◽  
F.J. Pallarés
Keyword(s):  
Reinforced Concrete ◽  
Steel Frames ◽  
Infill Walls ◽  
Cyclic Shear

scholarly journals Infill Modelling Influence on Dynamic Identification and Model Updating of Reinforced Concrete Framed Buildings

2020 ◽  
Vol 2020 ◽  
pp. 1-16 ◽  
Author(s):  
Marco Bovo ◽  
Michele Tondi ◽  
Marco Savoia
Keyword(s):  
Finite Element ◽  
Reinforced Concrete ◽  
Model Updating ◽  
Numerical Models ◽  
Finite Element Models ◽  
Dynamic Tests ◽  
Large Variability ◽  
Equivalent Strut ◽  
Infill Panels ◽  
Wide Range

In order to correctly capture the dynamic behavior of infilled framed buildings, the importance to take into account in seismic design the infill panels’ contribution is nowadays well recognized since they could modify in a significant way the global and local response of the whole building. Despite about sixty years of continuous research in the field, the modelling of the frame-infill interaction still represents a serious issue for the daily practical design since there is no reference model proven to be suitable to cover a wide record of possible cases. Moreover, few works are available in the literature, comparing the results of different modelling proposals with outcomes of dynamic tests on a full-scale building. To this regard, starting from the results of induced vibration dynamic tests performed on a 7-story building with reinforced concrete frames with masonry infill, in the present paper, the effects of the infill presence have been evaluated by comparing experimental outcomes, achieved using a MDOF Circle-Fit identification procedure, with the results obtained by means of numerical analyses performed on finite element models. Using a model updating procedure, the optimal width to assign to the masonry equivalent struts modelling the infill panels was defined. Furthermore, several literature proposals for the definition of the equivalent strut width have been analysed. Thirteen different proposals have been selected and implemented in thirteen different finite element models. The reliability of each proposal has been investigated and quantified by comparing the dynamic properties of the models with the building dynamic response obtained by the experimental tests. The main outcomes of the analyses highlight that different proposals provide a great variability for the strut width. This brings to a large variability of the mechanical properties of the equivalent struts, and as a consequence, the modelling choice also influences the dynamic behaviour of the numerical models. Currently, this represents a serious issue for the daily designers’ activity. The outcomes provided in the paper, although established for a specific case study, can be extended to a wide range of buildings and should drive the future research studies in order to provide more robust criteria for the modelling of this worldwide building class.

Analysis of steel frames with precast concrete infill panels

2008 ◽  
Vol 17 (18) ◽  
pp. 216-217 ◽  
Author(s):  
P.A. (Paul) TEEUWEN ◽  
C.S.(Cees) KLEINMAN ◽  
H.H. (Bert) SNIJDER ◽  
H. (Herm) HOFMEYER
Keyword(s):  
Precast Concrete ◽  
Steel Frames ◽  
Infill Panels

Seismic retrofit of flexible steel frames using thin infill panels

2002 ◽  
Vol 24 (4) ◽  
pp. 443-453 ◽  
Author(s):  
M Bruneau ◽  
T Bhagwagar
Keyword(s):  
Steel Frames ◽  
Seismic Retrofit ◽  
Infill Panels

scholarly journals Double-Leaf Infill Masonry Walls Cyclic In-Plane Behaviour: Experimental and Numerical Investigation

2018 ◽  
Vol 12 (1) ◽  
pp. 35-48 ◽  
Author(s):  
André Furtado ◽  
Hugo Rodrigues ◽  
António Arêde ◽  
Humberto Varum
Keyword(s):  
Reinforced Concrete ◽  
Masonry Wall ◽  
Masonry Walls ◽  
Initial Stiffness ◽  
Seismic Behaviour ◽  
Infill Panels ◽  
Modelling Strategies ◽  
Infill Masonry ◽  
The Individual ◽  
Modelling Approach

Background: The infill masonry walls are widely used in the construction of reinforced concrete buildings for different reasons (partition, thermal and acoustic demands). Since the ‘60s decade, one of the most common typology in the southern Europe was the double-leaf infill walls. Recent earthquake events proved that this specific typology have an important role in the seismic response of reinforced concrete structures in terms of stiffness, strength and failure mechanisms. However, modelling approaches of these specific infill panels cannot be found over the literature. Objective: Due to this, the major goal of the present manuscript is to present a simplified modelling strategy to simulate the double-leaf infill masonry walls seismic behaviour in the software OpenSees. Method: For this, two different modelling strategies were proposed, namely through a global and an individual modelling of the panels. An equivalent double-strut model was assumed and both strategies were compared and calibrated with experimental results from a full-scale in-plane test of a double-leaf infill masonry wall. Results: The numerical results obtained by each strategy are very accurate in terms of prediction of the specimen’ initial stiffness, maximum strength and strength degradation. Conclusion: From the force evolution throughout the tests, it was observed differences lower than 10%. Globally, the individual modelling approach reached better results.

Macroscopic modelling of steel frames equipped with bolt-connected reinforced concrete panel wall

2020 ◽  
Vol 213 ◽  
pp. 110549 ◽  
Author(s):  
Liqiang Jiang ◽  
Lizhong Jiang ◽  
Jihong Ye ◽  
Hong Zheng
Keyword(s):  
Reinforced Concrete ◽  
Steel Frames

Structural effects of the Peru earthquake

1971 ◽  
Vol 61 (3) ◽  
pp. 613-631
Author(s):  
Glen V. Berg ◽  
Raul Husid L.
Keyword(s):  
Reinforced Concrete ◽  
Steel Frames ◽  
Structural Effects

abstract Selected engineering aspects of the earthquake are discussed, particularly of steel frames, reinforced concrete, and adobe buildings. Some critical comments on failure are given and pattern of damage discussed.

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