Entity

Time filter

Source Type


Hu K.,China Shipbuilding NRDI Engineering Co.
Advanced Materials Research | Year: 2014

According to the theory of collapse numerical simulation, the explicit finite element algorithm based on explicit dynamics was chose as the numerical calculation method. And combined with the plane RC frame collapse test and the example of ten layers frame structure, the wire frame model, integrated model and separate model were established and the alternate path method was adopted to study the simulate method of structural collapse. With the comparison of several aspects to the results, the rationality of the numerical simulation method and the applicability of the numerical models were verified respectively. At the same time, according to the complex pre-treatment process to the numerical simulation of structural collapse, an MFC program with the function of exporting APDL file which can generate wireframe models for structural collapse simulation in ANSYS/LS-DYNA was developed using VC++ language with the purpose of offering convenience to the numerical simulation process of structure collapse. © (2014) Trans Tech Publications, Switzerland. Source


Hu K.,China Shipbuilding NRDI Engineering Co.
Gongcheng Lixue/Engineering Mechanics | Year: 2014

With the adoption of new materials as well as structural systems and construction methods, there are appearing more flexible, lighter, greater span and less damping structures, causing the significant vibrational responses of structural floor systems under pedestrian movement loads, which may induce the human discomfort and panic, and even affect the normal utilization of the structures. In this paper, the pedestrian comfort analysis theory and evaluation standards were illustrated firstly by the principle of domestic and foreign research status quo and specification provisions. Furthermore, according to the requirements of national specification and international ISO standard, the time history analysis of an outdoor landscape flyover was done, to elaborate the analysis and evaluation method of the floor pedestrian comfort. Also, the common damping measures of the vertical vibration comfort of the structure floors were introduced. Source


Hu K.,China Shipbuilding NRDI Engineering Co. | Hu K.,Tongji University | Qu G.,China Shipbuilding NRDI Engineering Co. | Zhou J.-R.,China Construction Design International | Zhang L.,China Shipbuilding NRDI Engineering Co.
Gongcheng Lixue/Engineering Mechanics | Year: 2013

The most common analysis method of complex highrise buildings is the response spectrum analysis, elastic time history analysis, pushover analysis and etc. For the analysis of those highrise buildings whose height is higher than 200 meters, their natural periods are longer than 4 seconds, the dynamic nonlinear analysis would be more accurate. In this paper, the dynamic nonlinear analysis was executed by using the Perform-3D program. Through the analysis, the structural dynamic response and plastic stages due to a rare earthquake were obtained, which also satisfied the seismic performance objectives of Chinese design code. Source


Hu K.,China Shipbuilding NRDI Engineering Co. | Hu K.,Tongji University | Yang Y.,China Shipbuilding NRDI Engineering Co. | Mu S.,China Shipbuilding NRDI Engineering Co. | Qu G.,China Shipbuilding NRDI Engineering Co.
Procedia Engineering | Year: 2012

Facing a large number of new-type complex structural system and progressively consummate earthquake-resistant theories, the conventional software can no longer meet the needs of calculation and analysis. Meanwhile, some international finite element programs, such as ETABS, SAP2000, MIDAS/gen and SATWE, were updating themselves but remained respective limitations. In this paper, response spectrum, time history and linking slab in-plan stresses analysis were executed combined with a practical project by these programs, which were also compared following the analysis results. © 2011 Published by Elsevier Ltd. Source


Hu K.,China Shipbuilding NRDI Engineering Co. | Hu K.,Tongji University | Qu G.,China Shipbuilding NRDI Engineering Co.
Advanced Materials Research | Year: 2012

The most common analysis methods of complex high-rise buildings are the response spectrum analysis, elastic time history analysis, pushover analysis and etc. Meanwhile, for the analysis of those high-rises whose height is higher than 200 meters, period is longer than 4 seconds, the dynamic nonlinear analysis would be more accurate. In this paper, the dynamic nonlinear analysis was executed in use of the Perform-3D program. The results show that the maximum top displacement can meet the national codes; most tie beams and the frame beams of the upper structure yielded in the IO~IS stage and parts reached the CP stage; both the laminated columns and the frame columns had a good performance on the shear behavior; and it is also proposed to strengthen the reinforcement at the reducted storeys. By all these above, it can be judged that the structure reached the codes' seismic performance objectives © (2012) Trans Tech Publications, Switzerland. Source

Discover hidden collaborations