Experimental Study of the Seismic Performance of Concrete Beam-Column Frame Joints with DfD Connections

Ding, Tao; Chen, Enci; Khan, Asad-ur-Rehman

doi:10.1061/(asce)st.1943-541x.0002576

Cited by 19 publications

(11 citation statements)

References 22 publications

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“…A customized test set-up was used in this test (Ding et al, 2020). Beams and columns of specimens were pinned at their ends.…”

Section: Test Proceduresmentioning

confidence: 99%

“…The revised steel plate-bolt connection, as a kind of dry connections, was used in the specimens. Recently, a novel DfD concrete connection method suitable for beam-column joints was developed by the authors (Ding et al, 2020;Xiao et al, 2017). Favorable mechanical resistance and ductility performance under static and cyclic loading of the proposed beam-column joint with ductile DfD connection was observed during the test.…”

Section: Introductionmentioning

confidence: 99%

“…Figure1. Dimension, reinforcement and DfD connection details of the joint specimens (Unit: mm)(Ding et al, 2020).…”

mentioning

confidence: 99%

“…Figure3. Test set-up, strain gauges and LVDT locations of specimens(Ding et al, 2020).…”

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confidence: 99%

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Effect of recycled aggregate concrete on the seismic behavior of DfD beam-column joints under cyclic loading

Chen

Ding

Xia

2020

Advances in Structural Engineering

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The problem of environmental pollution and waste concrete generation will be alleviated if concrete structures can be designed with both recycling and reuse strategies. In this regard, this study employed recycled coarse aggregate as the structural material in a novel beam-column joint with Design for Deconstruction (DfD) connections. Two series cyclic loading tests including pre-loading and re-loading on this frame joint was undertaken and the effect of recycled aggregate concrete (RAC) on structural behaviors was carefully evaluated. It is demonstrated that the DfD joint with RAC had favorable integrity and the influence of RAC was acceptable for practical application. Furthermore, the shear force model of the joint core area for RAC beam-column joint with DfD connections was put forward in this study, which showed good agreements with experimental results. Life cycle assessment (LCA) indicated that the carbon emission of the beam-column joint with DfD connections made of RAC increased at construction process but would reduce the total carbon emission from the perspective of lifetime.

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“…A customized test set-up was used in this test (Ding et al, 2020). Beams and columns of specimens were pinned at their ends.…”

Section: Test Proceduresmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Effect of recycled aggregate concrete on the seismic behavior of DfD beam-column joints under cyclic loading

Chen

Ding

Xia

2020

Advances in Structural Engineering

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“…This involved welding each of the bottom reinforcement steel of the two beams on a perforated steel plate, after which they were joined using bolts, as shown in Figure 3. Ding, Xio, Chen, and Khan [6] studied precast concrete joints in the beam section near the column surface by welding the longitudinal reinforcement of the upper and lower parts. Moreover, Xie and Chapman [7] investigated the welded joints on reinforcing steel, and the cross-section of the half connection between steel reinforcement and steel plate due to the annular cavity of the flash welding is shown in Figure 4 (a).…”

Section: Introductionmentioning

confidence: 99%

The Behavior of the Welding Connection Models Between Reinforcing Steel and Steel Plate

Hery¹

2020

GEOMATE

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The welding connection between reinforcing steel and steel plates are widely used as part of a building structure system, including the precast concrete connection system. This experimental study aimed to investigate the behavior of the tee joint welding between reinforcing steel and steel plates, using both the yield (YS) and tensile (TS) strengths as indicators. It was also directed towards understanding the strain hardening value (TS/YS), which is the ratio between these factors. The experiment was conducted by testing three types of welding connections, WC-1, WC-2, and WC-3, under tensile loads. The WC-1 and WC-2 are common models mostly used to join steel components in reinforced concrete structures, while WC-3 was the proposed connection model. The results showed TS/YS ratios of WC-1, WC-2, and WC-3 specimens were 1.19, 1.23, and 1.27, respectively. This means the value of the proposed specimen is higher than the required 1.25 by the ASTM A706M and was also recorded to have the best tensile strength.

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Experimental studies on precast concrete beam‐column connections with precast irregularly shaped columns and composite beams subjected to cyclic loading

Xue

Zhang

2021

Structural Concrete

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In this article, the precast concrete beam‐column connections, composed of precast irregularly shaped columns, composite beams and cast‐in‐place (CIP) core regions, were designed as emulative connections. In order to investigate the seismic behaviors of the precast connections, four full‐scale specimens, including an interior and an exterior precast specimen and their CIP control specimens, were tested under cyclic loading. The results revealed that the failure pattern of the precast specimens was characterized by flexural failure at the beam ends near the column face, which were similar to the CIP control specimens. Meanwhile, the concrete of core regions near the bottom of the beams slightly spalled, and diagonal cracks appeared in the core regions. The hysteresis loops of all the specimens were relatively plump, showing good energy dissipation capacity. The precast specimens exhibited slightly stronger response than the CIP control specimens, as the load carrying capacity of the precast interior and exterior specimens were about 2% and 5% higher, respectively. All the precast and CIP specimens behaved in a relatively ductile manner. The ductility of the interior and exterior precast specimens was 2.8 and 2.7, which was approximate to that of the CIP control specimens. The stiffness degradation of the precast specimens was also found to be similar to that of the CIP control specimens. Finally, a degenerated four‐linear restoring force model was developed.

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Experimental Study of the Seismic Performance of Concrete Beam-Column Frame Joints with DfD Connections

Cited by 19 publications

References 22 publications

Effect of recycled aggregate concrete on the seismic behavior of DfD beam-column joints under cyclic loading

Effect of recycled aggregate concrete on the seismic behavior of DfD beam-column joints under cyclic loading

The Behavior of the Welding Connection Models Between Reinforcing Steel and Steel Plate

Experimental studies on precast concrete beam‐column connections with precast irregularly shaped columns and composite beams subjected to cyclic loading

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