Quarter-Scale Building/Column Experiments

Woodson, Stanley C.; Baylot, James T.

doi:10.1061/40492(2000)99

Cited by 10 publications

(6 citation statements)

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“…The height of the tested columns was restricted by the dimension of the pendulum impact testing system for the current experiment. Previous studies by Woodson and Baylot [18,19] have demonstrated the suitability of quarter-scale model for RC columns with similar dimensions subjected to blast loading. Column damage and response including load and deflection were well measured in their tests.…”

Section: Test Setupmentioning

confidence: 98%

Experimental investigation of the response of precast segmental columns subjected to impact loading

Zhang

Hao

2016

International Journal of Impact Engineering

105

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A B S T R A C TAlthough precast concrete segmental columns have been more and more widely used in constructions, there is a lack of study on its behaviour under dynamic loading especially impact loading. In this paper, the fundamental behaviour of precast segmental columns under impact loading is investigated through laboratory tests. Scaled precast segmental columns with unbonded posttensioning tendon were constructed and tested using pendulum impact system. Two segmental columns of the same height, but with different numbers of precast segments were designed and tested. A conventional monolithic reinforced concrete (RC) column was also casted and tested as a reference column to compare the performance with segmental columns under impact loading. The impact load time history and column displacement time histories at column top, mid-height and column base were recorded. The deformation-to-failure processes of the columns were monitored by a high-speed camera, and used to investigate the response of different columns under impact loads. The test results showed the segmental column is more flexible than monolithic column, which leads to lower peak impact force, but longer duration compared to those on the monolithic RC column. It was also found that compared with monolithic columns, segmental columns show better performance against impact load with better self-centring capability, similar energy dissipation capability and less residual displacement and concrete damage.

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Section: Test Setupmentioning

confidence: 98%

Experimental investigation of the response of precast segmental columns subjected to impact loading

Zhang

Hao

2016

International Journal of Impact Engineering

105

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“…However, in close-range explosions, factors such as slight variations in the shape, position and quantity of the explosive charge can influence the blast wave parameters [15,16]. Furthermore, numerous researchers have documented challenges related to test repeatability, the non-uniform distribution of blast loading in open-air detonations and reduced visibility arising from fireball and dust clouds [17][18][19]. Hence, shock tubes can serve as a substitute for open-air detonations [20,21].…”

Section: Introductionmentioning

confidence: 99%

“…In the context of a close-in event, certain researchers have conducted experiments aimed at evaluating the impact of blast and column-related parameters on the dynamic response of RC columns. Woodson et al [18] conducted a series of five experiments involving quarter-scale RC columns integrated into scaled two-story RC frames subjected to close-in explosions. The test specimens featured a cross-section of 89 mm × 89 mm and a height of 935 mm.…”

Section: Introductionmentioning

confidence: 99%

Blast Loading of Small-Scale Circular RC Columns Using an Explosive-Driven Shock Tube

Rhouma,

Maazoun,

Aminou

et al. 2024

Buildings

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Reinforced concrete (RC) columns, being axial-bearing components in buildings, are susceptible to damage and failure when subjected to blast loading. The failure of these columns can trigger a progressive collapse in targeted buildings. The primary objective of this study is to investigate the failure characteristics of laboratory-scale RC columns subjected to localized blast loading. The columns, with a length of 1500 mm and an outer diameter of 100 mm, are reinforced with 6 mm diameter longitudinal bars and 2 mm diameter steel ties. The blast loading is generated using an explosive-driven shock tube (EDST) positioned in front of the mid-span of the RC columns with a 30 g and 50 g charge. To capture the global response of the RC columns, high-speed stereoscopic DIC is used in addition to LVDTs. Furthermore, an FE model is developed using LS-DYNA R10.0 and validated against the experimental data. The results show that the proposed FE approach is able to reproduce the applied blast loading and the failure characteristics of the columns. The relative difference in column mid-span out-of-plane displacement between the FE model and the average measured data lies below 5%. Finally, the gray correlation method is conducted to assess the influence of various parameters on the blast resistance of the RC columns.

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“…More than one researcher has used a prior study's experimental data to verify their numerical findings (e.g., (Eren et al, 2019;Li et al, 2016;Yu et al, 2019)). Woodson and Baylot(2000) examined the effect of infilled walls on RC structures during progressive collapse on five quarter-scale (two-story) specimens subjected to blast loading. As the applied weight was reduced, the infilled walls had a significant influence on decreasing the column's explosive repercussions.…”

Section: Introductionmentioning

confidence: 99%

Investigation of different infill wall effects on performance of steel frames with shear beam-column connections under progressive collapse

Alrubaidi

Alhammadi

2022

Lat. Am. j. solids struct.

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This article examined steel frames with shear beam-column connections to determine the effectiveness of different masonry infill walls under progressive collapse. This research concentrated on the shear connection, which is the most common type of steel beam-column connection in steel buildings. Furthermore, this work experimentally evaluated one-third-scale steel-framed configurations with a single shear beam-column connection and another infilled steel frame wall configuration from the literature to verify the validity of 3D finite element models developed using the program ABAQUS. Finite element models were then used to investigate 16 different kinds of steel frames with infill masonry as well as the influence of multiple frames and the number of stories. In addition, the effects of a fully infilled frame and those of a bare frame and an infilled frame with openings were compared in flexural and catenary action phases. Results revealed that the steel building's structural strength and energy dissipation against progressive collapse are significantly improved by infill walls.

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Quarter-Scale Building/Column Experiments

Cited by 10 publications

References 0 publications

Experimental investigation of the response of precast segmental columns subjected to impact loading

Experimental investigation of the response of precast segmental columns subjected to impact loading

Blast Loading of Small-Scale Circular RC Columns Using an Explosive-Driven Shock Tube

Investigation of different infill wall effects on performance of steel frames with shear beam-column connections under progressive collapse

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