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作者:

Dong, Hongying (Dong, Hongying.) | Zhang, Lijia (Zhang, Lijia.) | Cao, Wanlin (Cao, Wanlin.) (学者:曹万林) | Qiao, Qiyun (Qiao, Qiyun.) | Liu, Hengchao (Liu, Hengchao.)

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摘要:

The composite concrete shear wall embedded with dense columns-deep steel plate beams as the core structure was proposed. In order to investigate a high-performance structure with dense columns-deep steel plate beams, low cyclic loading experiments were carried out on four specimens with different design parameters. Three section styles, including concrete filled square steel tube column, concrete filled circular steel tube column, and I-section steel column, were adopted for dense columns. The steel strengths of deep beams included two grades, Q235 and Q345. The shear span ratios of all the specimens were 1.5. Based on the experiments, the load-bearing capacities, stiffness and deterioration processes, ductilities, hysteretic behaviors, energy dissipations, damage and failure processes of specimens were analyzed. The load-bearing capacity calculation model was established, and the calculation results were in good agreement with the test results. The investigation results show that the structure with 'strong columns and weak deep steel plate beams' can achieve the ductile yield mechanism. Among three types of dense columns with the same steel consumption, the structure with circular steel tube columns has the best seismic performance. Compared with the structure of Q345, the structure with steel deep beams of Q235 has better ductility in spite of lower load-bearing capacity. The structure with dense columns-deep steel plate beams has good seismic performance and shows good ductile yield mechanism. ©, 2015, Southeast University. All right reserved.

关键词:

Beams and girders Bearing capacity Composite structures Concretes Deterioration Ductility Energy dissipation Hysteresis Loads (forces) Plates (structural components) Seismic response Seismic waves Shear walls Stiffness Structural design Tubular steel structures

作者机构:

  • [ 1 ] [Dong, Hongying]College of Architecture and Civil Engineering, Beijing University of Technology, Beijing; 100124, China
  • [ 2 ] [Zhang, Lijia]College of Architecture and Civil Engineering, Beijing University of Technology, Beijing; 100124, China
  • [ 3 ] [Cao, Wanlin]College of Architecture and Civil Engineering, Beijing University of Technology, Beijing; 100124, China
  • [ 4 ] [Qiao, Qiyun]College of Architecture and Civil Engineering, Beijing University of Technology, Beijing; 100124, China
  • [ 5 ] [Liu, Hengchao]College of Architecture and Civil Engineering, Beijing University of Technology, Beijing; 100124, China

通讯作者信息:

  • [dong, hongying]college of architecture and civil engineering, beijing university of technology, beijing; 100124, china

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来源 :

Journal of Southeast University (Natural Science Edition)

ISSN: 1001-0505

年份: 2015

期: 3

卷: 45

页码: 550-556

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