HFUT Institute of Architectural Design

Hefei, China

HFUT Institute of Architectural Design

Hefei, China
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Shen Q.,Hefei University of Technology | Wang J.,Hefei University of Technology | Wang W.,Hefei University of Technology | Wang J.,HFUT Institute of Architectural Design
Progress in Steel Building Structures | Year: 2015

To study the axial compressive behavior and bearing capacity of elliptical concrete-filled steel tube (ECFST) columns, a numerical model of ECFST columns under axial compressive loading is established using ABAQUS software. Complex contact properties, material nonlinearity, and ellipse features are considered in the model. This numerical model is validated through comparing against test results. The parameters affecting ultimate bearing capacity and stiffness of ECFST columns are analyzed, and the working mechanism and failure modes are revealed. A simplified formula on the axial compressive bearing capacity of ECFST columns is proposed based on the unified theory. The research results show the failure modes of ECFST columns are shear failure, local buckling failure, and overall buckling failure. Based on its working mechanism, the behavior of ECFST column can be divided into four stages, namely, elastic stage, elasto-plastic stage, plastic hardening stage and descending stage. These four stages are influenced by the constraining factor. The simplified formula on compressive bearing capacities can be applied to the design of ECFST columns. © 2015, Progress in Steel Buiding Structures All right reserved.


Li J.,HFUT Institute of Architectural Design | Wang Y.,Tsinghua University | Chang T.,Tsinghua University | Shi F.,Tsinghua University
Applied Mechanics and Materials | Year: 2011

In order to study characteristics and rules of the in-plane stability for gabled arch frame steel building, a well-known FEA software package ANSYS has been used to calculate the in-plane buckling of a gabled arch frame which has a span of 30m. The linear and extreme point buckling loads have been obtained under the circumstances of different rise-span ratio, full-span and half-span distributed load and initial deficiency. Then the buckling path for this kind of structure has been given. Finally, the buckling deformation rules were proof and the influence of rise-span ratio, load conditions and initial deficiency were also discussed. © (2011) Trans Tech Publications.


Chong X.,Hefei University of Technology | Ye X.,Hefei University of Technology | Xu Q.,HFUT Institute of Architectural Design | Li N.,China Automobile Industry Engineering Corporation
Tumu Gongcheng Xuebao/China Civil Engineering Journal | Year: 2013

To evaluate behavior of the horizontal connections between the superimposed walls and foundations under seismic load, and the influence of edge elements among the perpendicular walls to the damage pattern of the structure, two full-scale I-shaped section specimens consisting of the perpendicular walls and the cast-in-place T-shaped edge elements were tested under cyclic reversed loads. Based on the test, the shear slip mechanics of the horizontal connections between wall and foundation is analyzed, and then numerical analysis of the specimen is conducted utilizing the 3-D nonlinear structural analysis program CANNY. The study indicates that damage of the superimposed wall mainly occurs near the horizontal connections between wall and foundation, and the inelastic region is relative small, inducing that ductility of the structure is decreased; anti-shear slip ability of the horizontal connections is mainly provided by the friction of the compress region of the cross section, and thus the relative small compress region of the I-shaped cross section is the main reason for the obvious shear slip of the specimens during the test; the 3-D MS element of CANNY is proved to be reasonable and dependable for the I-shaped superimposed walls.


Wang J.,Hefei University of Technology | Shen Q.,Hefei University of Technology | Li J.,Hefei University of Technology | Hou H.,Shandong University | Wang J.,HFUT Institute of Architectural Design
Tumu Gongcheng Xuebao/China Civil Engineering Journal | Year: 2016

To study the seismic behavior of fabricated steel structural frames with externally attached composite wall panels (ECWPs), four specimens of semi-rigid concrete-filled steel tubular (CFST) frames with ECWPs and one specimen of pure semi-rigid CFST frame subjected to low-cycle reverse loading were tested. The main investigated parameters were the concrete type of wall panel, the connection type between walls, the setup of diagonal bracing and the use of wall panel. The interaction between semi-rigid CFST frames and ECWPs and the corresponding failure modes under earthquake action were investigated. The hysteretic curves, the skeleton curves, the degradation curves of strength and stiffness as well as the energy dissipation capacity were analyzed. Additionally, the structural ductility was also evaluated in terms of the present specifications. The test results showed that the semi-rigid CFST frames with bolt connected ECWPs have good hysteretic behavior, energy dissipation capacity and ductility, so that the collaboration between semi-rigid CFST frames and ECWPs under strong earthquakes can be guaranteed; the ductility coefficient μ=2.53~3.81, the elastic ultimate displacement drift θy=(3.33~5.03)[θe], and the elastic-plastic ultimate displacement drift θf=(2.35~2.55)[θp]; the equivalent viscous damping coefficient ξe=0.147~0.182, and the energy dissipation coefficient E=0.973~1.145. The damage of composite wall panel mainly occurred near the embedded parts of the walls, and its overall performance shall be superior to the traditional walls. This study may provide a good reference for the design theory and the application of the fabricated steel structures. © 2016, Editorial Office of China Civil Engineering Journal. All right reserved.


Wu Q.,Xi'an University of Architecture and Technology | Wu Q.,Hefei University of Technology | Li Z.-M.,Xi'an University of Architecture and Technology | Wang X.-M.,HFUT Institute of Architectural Design
Xi'an Jianzhu Keji Daxue Xuebao/Journal of Xi'an University of Architecture and Technology | Year: 2012

The residential behavior is one of important element to affect the residential space. Today the residential design becomes much more humane and delicate, so the paper regards the nuclear family in cities as the object of research. On the one hand, the research gets the most direct and realistic data by investigation, and on the other hand, the research analyzed the data by the methods of environmental behavior study and topology. Through integration of empirical research and theoretical analysis, the paper brings out the inherent characteristic and supports the new thought which can help the residential space research in more profound ways.


Wu Q.,Hefei University of Technology | Wu Q.,Xi'an University of Architecture and Technology | Wang X.,HFUT Institute of Architectural Design
Applied Mechanics and Materials | Year: 2012

This paper emphasize the importance of research of dynamic energy saving control by analyzing the properties of the architecture. From the comparison and analysis of related research, the paper presents the research strategy of dynamic energy saving control in China. © (2012) Trans Tech Publications, Switzerland.


Wu Q.,Xi'an University of Architecture and Technology | Wu Q.,Hefei University of Technology | Wang X.,HFUT Institute of Architectural Design
Advanced Materials Research | Year: 2011

The paper analyses the problem of residential units design in cities, then brings the Environmnet-behavior Studies to the research of residential designs. This view focuses on human and environment. It will help us to grasp the settlement patterns of urban households wholly and totally after through inspecting the relationship of them, and then creates the the overall space for certain settlement patterns in cities. © (2011) Trans Tech Publications, Switzerland.

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