Cyclic testing of steel frames infilled with concrete sandwich panels

Hashemi, Seyed Jafar; Razzaghi, Javad; Moghadam, Abdolreza S.; Lourénço, Paulo B.

doi:10.1016/j.acme.2017.10.007

Cited by 21 publications

(7 citation statements)

References 22 publications

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“…The energy dissipation capacity can be estimated from the areas enclosed by the hysteretic load–displacement loops in each cycle. In this study, for comparing the energy dissipation capability of different specimens at each displacement level, we used the approach applied in previous studies (Hashemi et al, 2018b). The dissipated hysteretic energy at certain displacements normalized by the peak-to-peak displacement (2Δ) and the dissipated energy ratio of the infilled frames to that of the BF are shown in Figure 13.…”

Section: Resultsmentioning

confidence: 99%

An experimental study on the effect of frame-to-wall connection type on the seismic behavior of steel frames infilled with autoclave-cured aerated concrete blocks

Asadzadeh

Mohammadi

Attari³

et al. 2019

Advances in Structural Engineering

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In this article, in order to find some reliable connection types for avoiding the infill failure, an experimental study is conducted on six half-scale single-story single-bay specimens, including one bare frame and five steel frames with autoclave-cured aerated concrete walls, each having different frame-to-wall connection types. Polyurethane adhesive was used in bed joints of the autoclave-cured aerated concrete walls as a mortar. The specimens were tested under displacement-controlled loading to examine their effect on the in-plane behavior of steel frames. The results suggested that V- and T-shaped connectors can be used as prequalified connectors between the wall and the frame. In specimens with these connectors, the interaction between infill and frame was ignorable and the infill remained intact up to life safety performance level (2.5% drift ratio). Furthermore, the application of these connectors resulted in a two-level performance of the infill whereby the frame stiffness degradation and strength deterioration after the drift ratio of 2.5% was compensated.

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Section: Resultsmentioning

confidence: 99%

An experimental study on the effect of frame-to-wall connection type on the seismic behavior of steel frames infilled with autoclave-cured aerated concrete blocks

Asadzadeh

Mohammadi

Attari³

et al. 2019

Advances in Structural Engineering

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“…Hou et al investigated the seismic behaviour of H-shaped steel frames with embedded lightweight infill wall panels [17,18]. Hashemi et al also conducted cyclic loading tests on steel frame infill walls and explored the influence of the walls on the behaviour of the main structure [19]. Finally, Wang et al explored the failure modes of and interaction between ALC walls and CFST frames under seismic loading tests [20,21].…”

Section: Introductionmentioning

confidence: 99%

Seismic Behaviour of Concrete-Filled Steel Tube Frames With External Composite Wall Panels

2021

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This study investigated the seismic performance of concrete-filled steel tube frames with external wall panels via experimental research, numerical and theoretical analysis. Pseudo -static tests were first performed on five concrete-filled steel tube frame specimens. The failure mode, hysteretic performance, stiffness degradation, strength degradation, ductility coefficient, and energy dissipation capacity in the essential components of the structural system were analysed. Besides, finite element analysis was then used to simulate the seismic performance of the specimen, and the predicted results were compared with the test results. A parametric analysis was then conducted to study the influence of the strength of the materials and the relative size of the wall openings on the structural system of the specimens. Finally, the numerical and experimental results were compared. The following results were obtained based on the observed failure modes of the specimens: (1) each specimen exhibited good seismic performance and safety reliability, (2) external wall panels improved the elastic stiffness and ultimate bearing capacity of concrete-filled steel tube frames, (3) the four-point support method effectively controlled the wall-plate displacement mode, and (4) the degree of horizontal constraint at the upper support joint connectors significantly affected the wall-plate displacement mode.

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“…Wu et al studied the seismic performance of prefabricated composite shear walls reinforced by concrete‐filled steel columns. In‐plane seismic behavior of concrete sandwich panel‐infilled steel frame was experimentally and numerically investigated by Hashemi et al The hysteretic behavior of composite partially restrained steel frame‐reinforced concrete infill walls with vertical slits was investigated by Sun et al However, this shear wall system with connection to boundary columns was found to generate additional force in the boundary columns, which may cause requirements of oversize section of the columns to resist the additional force . To avoid this phenomenon, beam‐only‐connected shear wall systems were proposed, which feature an alternative to the traditional type of shear walls through separating the horizontal load resisting system from the primary columns.…”

Section: Introductionmentioning

confidence: 99%

Seismic performance assessment of new dry‐assembled prefabricated composite shear wall system with beam‐only connection

Wang

Zhang

Chen

2020

Structural Design Tall Build

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Summary Two types of prefabricated composite shear wall systems were proposed using modular and separated dry‐assembled ways, respectively. The seismic performance of four composite shear wall systems, two for the modular assembly way and two for the separated assembly way, was numerically evaluated including failure mode, loading and deformation capacities, hysteresis behavior, ductility, stiffness degradation, and energy dissipation. The nonlinear numerical simulations were conducted based on plastic‐damage constitutive laws for both concrete and steel materials using ABAQUS platform, which were further verified by the experimental investigations. The results showed that the mechanical performance of the modular assembly system is superior than that of the separated assembly system. The former exhibited good bearing and deformation capacities: The peak force is enhanced by 50% on average, the ultimate drift ratio reaches an average value of 3.7%, and the ductility coefficient has an average value of 10.5. As for the same assembly way, the prefabricated system with inner steel plate appeared better seismic properties compared to that with outer steel plate. Furthermore, the modular assembly system behaved prominent energy dissipation capacity with plentiful hysteresis loops. The equivalent damping ratio of this system reaches 15.93% at the drift ratio of 2%, which is the limit drift ratio for normal buildings in rare earthquakes.

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Cyclic testing of steel frames infilled with concrete sandwich panels

Cited by 21 publications

References 22 publications

An experimental study on the effect of frame-to-wall connection type on the seismic behavior of steel frames infilled with autoclave-cured aerated concrete blocks

An experimental study on the effect of frame-to-wall connection type on the seismic behavior of steel frames infilled with autoclave-cured aerated concrete blocks

Seismic Behaviour of Concrete-Filled Steel Tube Frames With External Composite Wall Panels

Seismic performance assessment of new dry‐assembled prefabricated composite shear wall system with beam‐only connection

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