Experimental Research on Bearing Capacity of Insulated Sandwich Concrete Wall Structures Under Axial Compression

ZHANG Zhechang; WANG Chenlei; QIAO Wentao; YIN Xiaoxiang; YUAN Jiawei

doi:10.3724/j.gyjzG23032716

Volume 55 Issue 4

Apr. 2025

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Abstract

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Article Navigation > INDUSTRIAL CONSTRUCTION > 2025 > 55(4): 57-62

ZHANG Zhechang, WANG Chenlei, QIAO Wentao, YIN Xiaoxiang, YUAN Jiawei. Experimental Research on Bearing Capacity of Insulated Sandwich Concrete Wall Structures Under Axial Compression[J]. INDUSTRIAL CONSTRUCTION, 2025, 55(4): 57-62. doi: 10.3724/j.gyjzG23032716

Citation:

ZHANG Zhechang, WANG Chenlei, QIAO Wentao, YIN Xiaoxiang, YUAN Jiawei. Experimental Research on Bearing Capacity of Insulated Sandwich Concrete Wall Structures Under Axial Compression[J]. INDUSTRIAL CONSTRUCTION, 2025, 55(4): 57-62. doi: 10.3724/j.gyjzG23032716

Citation:

ZHANG Zhechang, WANG Chenlei, QIAO Wentao, YIN Xiaoxiang, YUAN Jiawei. Experimental Research on Bearing Capacity of Insulated Sandwich Concrete Wall Structures Under Axial Compression[J]. INDUSTRIAL CONSTRUCTION, 2025, 55(4): 57-62. doi: 10.3724/j.gyjzG23032716

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Experimental Research on Bearing Capacity of Insulated Sandwich Concrete Wall Structures Under Axial Compression

doi: 10.3724/j.gyjzG23032716

1. School of Civil Engineering, Shijiazhuang Tiedao University, Shijiazhuang 050043, China;
2. NGREEN Architectural Design Co., Ltd., Shijiazhuang 050011, China;
3. China Rail Way Huatie Engineering Design Group Co., Ltd., Beijing 100071, China

Received Date: 2023-03-27
Available Online: 2025-06-07
Publish Date: 2025-04-01

Abstract

Abstract

The insulated sandwich concrete wall （ISCW） is a new type of composite structure， which is mainly composed of expanded polystyrene sheets， steel wires and concrete layers. In order to investigate the influence of concrete layer thickness， steel wire spacing and concrete strength， six full-scale ISCW were fabricated for axial compression loading tests. The failure characteristics of the tests were as follows： cracks occurred in the middle or lower part of the specimen， then the cracks developed downward， the specimen split， and the bottom concrete was damaged. The test results indicated that as the thickness of the concrete layer increased， it significantly affectsed the ultimate bearing capacity and axial stiffness of the specimens， with maximum increments of 35% and 65%， respectively. Additionally， higher concrete strength enhanced the ultimate bearing capacity and axial stiffness of the specimens， with maximum increments of 36% and 27%， respectively. The increase in steel wire spacing had no pronounced effect on the ultimate bearing capacity of the specimens， but it significantly influenced axial stiffness， resulting in a reduction of 25%. Smaller steel wire spacing corresponded to greater structural ductility.
- composite structure,
- insulated sandwich concrete wall,
- bearing capacity under axial compression,
- load test

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References(16)

References

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