Papers by Author: Yuan Qing Wang

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Authors: Yuan Qing Wang, Huan Xin Yuan, Yong Jiu Shi, Gui Xiang Zhang
Abstract: Served as the primary form of joints in aluminum structures, the bolted connection is of great necessity to be investigated. The bearing performance of aluminum alloy bolted connections was evaluated by test and finite element (FE) analysis. A total of 20 bolted connections were tested and the varying parameters incorporated screw diameter and end distance. The test results included the ultimate bearing capacities and relationship between applied load and bolt hole deformation. Numerical simulation for the test process was implemented; thereupon reliability and accuracy of the FE models could be validated by good agreement with test results. By virtue of the verified numerical model, elaborated analysis of principle variables including inner and outer plies, end distance, screw diameter, sheet thickness and so on was carried out. Compared to the current overly conservative design rules, a new design method that could make full use of the bearing capacity was proposed. The corresponding design value of bearing strength was also presented with reference to the recommended constructional provisions.
Authors: Da Yi Ding, Chang Shu, Yang Gao, Yuan Qing Wang, Da Peng Pei, Yan Tang
Abstract: Section-Ⅲ landside curtain wall of Hefei Xinqiao International Airport terminal adopted single layer cable net curtain wall, while others adopted stick-system curtain wall structure. In this paper, the section-Ⅲ overall structure model of Hefei Xinqiao International Airport terminal was established by using the finite element method (FEM) software ANSYS. The load bearing capacity and deformability of landside curtain wall under load cases with seismic loads and wind loads were analyzed. Also the cable net curtain wall’s effect on the main structure was discussed. The results showed that the displacements of curtain wall and the internal forces of cables met the requirements, and the cable net curtain wall had little effect on the main steel structure.
Authors: Gang Shi, Hao Fan, Yong Jiu Shi, Yuan Qing Wang
Abstract: Compared to the traditional configurations, beam-column end-plate connections with two bolt rows located at the external side of the beam tension flange, i.e. high-type large capacity end-plate connections, could stand greater loading. However, seldom research on the static behavior of high-type end-plate connections has been done in China while specification in America has provided corresponding design approaches. In this paper, detailed verified finite element model will be employed to analyze the static behavior of 7 high-type end-plate connections with different configurations. The influence of parameters such as end-plate thickness, bolt layout, end-plate configuration and stiffener geometry has been investigated. The simulation results demonstrate that (1) when the maximum transferred tension force by a single bolt reaches 0.8P, the tension force of the bolts does not satisfy the assumption of linear distribution but depends on the boundary conditions of the bolts; (2) the shear force in the connection is transferred by the contact surface of the end plate and the shear force directly transferred by the bolts is tiny and extremely uneven; (3) considering the effect of the connection configurations, whether the end plate at the compression side is extended or not has little effect on the static behavior of the connection but the geometry of the end-plate stiffener and the distance from the bolt axis to the beam web have great contribution to the initial stiffness of the connection; (4) at ultimate state even the bolts located near the beam axis have significant contribution to the loading capacity of the connection. Then, a model of the bolt transferred tension force distribution has been proposed. What’s more, based on the observation of the stress contour of the tension part of the end plate, a yield line model has been proposed. All these results are important to propose a design approach for the high-type end-plate connection. Introduction
Authors: Jun Li, Yuan Qing Wang, Ting Chang, Fei Shi
Abstract: 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.
Authors: Yuan Qing Wang, Jong Su Sung, Yong Jiu Shi
Abstract: Composite slab with steel sheeting deck is considered a continuous slab when it is under a constructional situation. Nevertheless, many recent researches are focused on simply supported slab. In order to determine the load carrying capacity regarding various rebar ratio on negative moment region, a numerical analysis was carried out by using finite element analysis. The result of analysis shows that the reinforced steel rebar increases load carrying capacity. Moreover, it has shown that the reinforced length of steel rebar also affect the load carrying capacity.
Authors: Yong Jiu Shi, Jian Xu, Guo Xin Dai, Yuan Qing Wang
Abstract: A typical three-story unstiffened Steel Plate Shear Wall (SPSW) finite element model was established. Systematic parameters analysis of the development and changing process of the lateral stiffness and shear capacity was mainly carried on the middle standard layer. The result shows that the lateral stiffness of thin SPSW has been always in decline and has a higher shear capacity after buckling. According to lots of analysis data and different stages of lateral control targets in the new revised seismic design code for performance designing, the lateral limits of the SPSW were respectively qualified under wind loads and frequent earthquake.The test verification was also proposed to verify the restrictive lateral limits so as to supply a scientific basis for the preparation of SPSW design method.
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