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Restoring Force Model and Seismic Performance Improvement of CFST Column-Double Laminated Slab Composite Shear Walls
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Guangxin ZHOU1, Fengliang ZHANG2, Bian WU3, Yang LIU4
Industrial Construction | 2026, 56(5) : 99 - 112
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Industrial Construction | 2026, 56(5): 99-112
Restoring Force Model and Seismic Performance Improvement of CFST Column-Double Laminated Slab Composite Shear Walls
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Guangxin ZHOU1, Fengliang ZHANG2, Bian WU3, Yang LIU4
Affiliations
  • 1Sichuan Institute of Building Research Co.， Ltd.， Chengdu610036， China
  • 2School of Intelligent Civil and Ocean Engineering， Harbin Institute of Technology （Shenzhen）， Shenzhen518055， China
  • 3Department of Civil Engineering， Sichuan University of Architectural Technology， Deyang618000， China
  • 4Construction Engineering Company of China Railway No.5 Engineering Group Co.， Ltd.， Guiyang550081， China
Published: 2026-05-20 doi: 10.3724/j.gyjzG26031504
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The concrete-filled steel tubular （CFST） column-double laminated slab composite shear wall is a novel composite structural form for prefabricated buildings. A refined three-dimensional finite element model was established using ABAQUS and validated against quasi-static test data. Combined with test and numerical results， the mechanical mechanism under quasi-static loading was revealed， and the shear slip at the precast-cast-in-situ concrete interface was identified as the intrinsic cause of composite action degradation and performance deterioration. On this basis， a trilinear backbone curve model applicable to composite shear walls with a shear span ratio greater than 1.5 was proposed， along with formulas for equivalent stiffness and cross-sectional bearing capacity. Hysteretic rules were established based on a modified Clough model to develop a complete restoring force model. Validation results showed that the theoretical predictions agreed well with the test （numerical） results. Furthermore， an interface strengthening scheme using angle steel shear keys was proposed， which increased the ultimate drift ratio by 34% and the ductility coefficient by 26%， significantly improving the plastic deformation capacity.

composite shear wall  /  concrete-filled steel tube  /  double laminated slab  /  restoring force model  /  seismic performance  /  finite element analysis
Guangxin ZHOU, Fengliang ZHANG, Bian WU, Yang LIU. Restoring Force Model and Seismic Performance Improvement of CFST Column-Double Laminated Slab Composite Shear Walls[J]. Industrial Construction, 2026 , 56 (5) : 99 -112 . DOI: 10.3724/j.gyjzG26031504
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doi: 10.3724/j.gyjzG26031504
  • Receive Date：2026-03-15
  • Online Date：2026-06-25
  • Published：2026-05-20
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  • Received：2026-03-15
Affiliations
    1Sichuan Institute of Building Research Co.， Ltd.， Chengdu610036， China
    2School of Intelligent Civil and Ocean Engineering， Harbin Institute of Technology （Shenzhen）， Shenzhen518055， China
    3Department of Civil Engineering， Sichuan University of Architectural Technology， Deyang618000， China
    4Construction Engineering Company of China Railway No.5 Engineering Group Co.， Ltd.， Guiyang550081， China
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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