Analysis on Energy-Consumption and Earthquake-Mitigation for a High-Rise Building Set Metal Yield Dampers

2011 ◽  
Vol 90-93 ◽  
pp. 1517-1521
Author(s):  
Gui Xuan Wang ◽  
Yu Wang ◽  
Jie Zhao
Keyword(s):  
Time History ◽  
Residential Building ◽  
Response Analysis ◽  
Elastic Plastic ◽  
High Rise ◽  
History Analysis ◽  
Building Set ◽  
Metal Yield ◽  
Dynamic Time ◽  
Resistance Performance

Based on the mechanical properties of metal yield damper, high-rise residential building is implemented elastic-plastic response analysis for structure by using the nonlinear dynamic time-history analysis method under the effect of M8-class strong earthquake ,and judge performance level of structure and component. According to the elastic-plastic analysis results, put forward the improvement proposal for design to make the structure have the better resistance performance against the earthquake.

Seven Mega Floor MSCSS Modal Analysis

2013 ◽  
Vol 353-356 ◽  
pp. 2210-2215
Author(s):  
Jun Jun Wang ◽  
Lu Lu Yi
Keyword(s):  
Modal Analysis ◽  
Response Spectrum ◽  
Time History ◽  
Response Analysis ◽  
Superposition Method ◽  
Response Spectrum Analysis ◽  
Mode Superposition Method ◽  
History Analysis ◽  
Basic Performance ◽  
Dynamic Time

Modal analysis is also known as dynamic analysis for mode-superposition method. In the seismic response analysis of linear structural systems, it is one of the most commonly used and the most effective ways. Through the modal analysis of building structure, we can get some basic performance parameters of the structure. These parameters can help us make qualitative judgments for the respond of a structure first, and can help us judge whether they meet demands for conceptual design. Modal analysis is also the basis of other dynamic response analysis, including dynamic time history analysis and response spectrum analysis.

scholarly journals EVALUASI JARAK AMAN ANTARA STRUKTUR SRPM TINGGI DENGAN STRUKTUR SRPM DISEBELAHNYA TERHADAP GEMPA

2018 ◽  
Vol 4 (1) ◽  
Author(s):  
Ade Faisal ◽  
Tondi Amirsyah Putera ◽  
Mariden Purba
Keyword(s):  
Time History ◽  
Tall Buildings ◽  
Soil Conditions ◽  
Safe Distance ◽  
High Rise ◽  
Moment Resisting Frame ◽  
History Analysis ◽  
Moment Resisting ◽  
Dynamic Time ◽  
Storey Building

Pembangunan gedung-gedung tinggi menjadi salah satu alternatif yang di pilih karena keterbatasan dan mahalnya lahan diperkotaan sementara tingkat permintaan ruang untuk berbagai kegiatan semakin tinggi. Hal ini menyebabkan gedung-gedung bertingkat sering dibangun saling berdekatan satu dengan yang lainnya. Benturan dapat terjadi pada dua bangunan gedung bertingkat yang bersebelahan apabila jarak antara dua bangunan lebih kecil dari simpangan maksimum yang terjadi akibat beban gempa. Studi ini bertujuan untuk mencari jarak aman antara dua bangunan tinggi yang bersebelahan. Gedung yang direncanakan 2 model menggunakan SRPM dengan material beton bertulang yang terletak di kota Medan dengan kondisi tanah sedang. Model  pertama (Model 1) direncanakan memiliki tinggi 28,5 meter terdiri dari 8 lantai, sedangkan Model kedua (Model 2) direncanakan memiliki tinggi 35,5 meter terdiri dari 10 lantai. Analisa yang digunakan pada studi ini yaitu analisis dinamik riwayat waktu. Nilai simpangan yang terjadi pada gedung  8 lantai (Model 1) untuk arah x sebesar 80,87 mm dan untuk arah y sebesar 79,35 mm. Simpangan yang  terjadi pada gedung 10 lantai (Model 2) untuk arah x sebesar 113,33 mm dan untuk arah y sebesar 112,39 mm. Hasil analisa yang dilakukan menunjukkan jarak aman antara gedung 8 lantai dengan gedung 10 lantai adalah sebesar 2,1 meter, sedangkan jarak aman antara gedung 10 lantai dengan gedung 10 lantai adalah sebesar 2,2 meter.  Kata Kunci : Analisis Riwayat Waktu, Benturan Antar Gedung, Jarak Antar Gedung, Simpangan  ABSTRACT The construction of tall buildings became one of alternative that was chosen because of the urban land limitations and the cost. At the same time the space demand for various urban activities is increased. It is caused the high-rise buildings are often built very close to one another. The collision can be occurred if two adjacent building if the distance between the two building is smaller than the maximum drift caused by the earthquake action. This study aims to plan a safe distance between two adjacent high-rise buildings. The planned building two models using Moment Resisting Frame with reinforced concrete material that is located in the city Medan with moderate soil conditions. The first model (Model 1) has a height of 28.5 meters is planned consists of 8 floors, while the second model (Model 2) planned to have a height of 35.5 meters consists of 10 floors. The analysis used in this study is the analysis of dynamic time history. The displacement value which occurred on 8 storey building (Model 1) to the x direction by 80.87 mm and for the y direction by 79.35 mm. The displacement occurs in the building 10 floors (Model 2) to the x direction of 113.33 mm and for the y direction of 112.39 mm. The results of analysis indicate that the safe distance between 8 storey building with 10 floors of the building is 2.1 meters, while the safe distance between buildings 10 floors with 10 storey building is 2.2 meters. Keywords: Time History Analysis, Clash Between Buildings, Distance Between Buildings, Deviation

Study on Piping Response Under Multiple Excitation Validation for Elastic-Plastic Analysis of Piping

2014 ◽  
Author(s):  
Satoru Kai ◽  
Tomoyoshi Watakabe ◽  
Naoaki Kaneko ◽  
Kunihiro Tochiki ◽  
Makoto Moriizumi ◽  
...  
Keyword(s):  
Plastic Deformation ◽  
Seismic Response ◽  
Nuclear Power ◽  
Time History ◽  
Large Earthquake ◽  
Response Analysis ◽  
Analysis Method ◽  
Elastic Plastic ◽  
History Analysis ◽  
Plastic Analysis

Piping in a nuclear power plant is usually laid across several floors of a single building or adjacent buildings, and is supported at many points. As the piping is excited by a large earthquake through multiple supporting points, seismic response analysis by multiple excitations within the range of plastic deformation of piping material is necessary to obtain the precise seismic response of the piping. The verification of the dynamic analysis method of piping under an elastic domain, which is excited by multiple seismic inputs, was performed in our study last year and the correspondence of a piping response between an analysis and an experiment have been confirmed [17][18]. However, few experiments under plastic deformation conditions have been performed to verify the validity of multiple excitation analysis under a plastic deformation range. To obtain better understanding of the behavior of piping under a large seismic input, it is important to investigate the seismic response by multiple excitations and to verify the validity of the analytical method by multiple excitation experiments. This paper reports the validation results of the seismic elastic-plastic time history analysis of piping compared with the results of the shaking test of a 3-dimensional piping model under a plastic deformation range using triple uni-axial shake table. Three directional strains from the analysis and the experiments were compared in order to validate the analysis method. As a result, it is confirmed that the elastic-plastic analysis by time history excitation shows good agreement with the test results.

Evaluation of N-M Model on Simulating Seismic Response of High-Rise SRC Structure

2013 ◽  
Vol 477-478 ◽  
pp. 1060-1063
Author(s):  
Guo Bin Bu ◽  
Jian Cai ◽  
Kang Ning Li
Keyword(s):  
Interaction Model ◽  
Time History ◽  
Bending Moment ◽  
Dynamic Responses ◽  
Biaxial Bending ◽  
Fiber Model ◽  
High Rise ◽  
History Analysis ◽  
Moment Interaction ◽  
Dynamic Time

The axial load-biaxial bending moment interaction model (N-M model) is developed based on the metal plasticity theory, and its reliability in structural analysis is evaluated. Employing CANNY program, linear and nonlinear dynamic time history analysis is conducted to a 32-story SRC structure. The dynamic responses are compared between N-M model and fiber model cases. The results show that N-M model can simulate well the dynamic response of the high-rise hybrid structures. Besides, N-M model has clear mechanical concept and is much simpler compared to fiber model, and the computational efficiency can be greatly improved by using N-M model.

scholarly journals Vibration analysis of a bucket wheel excavator boom using rayleigh’s damping model

2019 ◽  
Vol 2 (1) ◽  
pp. 233-241
Author(s):  
Florin Dumitru Popescu ◽  
Sorin Mihai Radu ◽  
Krzysztof Kotwica ◽  
Andrei Andraș ◽  
Ildiko Kertesz Brînaș ◽  
...  
Keyword(s):  
Time History ◽  
Time Response ◽  
Open Pit ◽  
Response Analysis ◽  
Damping Matrix ◽  
Stiffness Matrices ◽  
Excavation Process ◽  
History Analysis ◽  
Time Response Analysis ◽  
Dynamic Time

Abstract For the ERc 1400-30/7 type bucket wheel excavator (BWE) used in various Romanian open pit mines, a virtual model of the boom was constructed in SolidWorks. On this model, the variable in time forces acting during the excavation process were simulated, and the time history analysis (time response) was performed. This dynamic time response analysis was performed for excavation of homogenous material only, considering the damping as being of Rayleigh’s type, where the damping matrix is a linear combination of the mass and stiffness matrices. Based on the conducted analysis, the displacements of the boom during excavation were observed.

Dynamic Response Analysis of Lining Structure with Primary Defects for Tunnel under Moving Train Loading

2012 ◽  
Vol 525-526 ◽  
pp. 573-576 ◽  
Author(s):  
Yu Ping Cui ◽  
Wei Ze Sun ◽  
Jun Dong ◽  
Fei Dong
Keyword(s):  
Dynamic Response ◽  
Time History ◽  
Response Analysis ◽  
Subway Tunnel ◽  
History Analysis ◽  
Lining Structure ◽  
Measured Information ◽  
Dynamic Time ◽  
Moving Train ◽  
Train Loading

Considering the background of vibration engineering of lining structure of subway tunnel with primary defects under moving train loading, and according to the measured information of a dynamic loading spectrum of subway in Beijing, dynamic response of the lining structure with differently primary defects caused by neighboring tunnel construction has been investigated for different cases including one-way and two-way trains in this paper. The results show that the curves of dynamic time history analysis are similar with each other for displacement and stress under different cases with differently primary defects. The peak value of displacement and stress under the case of two-way train is much larger than that under the case of one-way train, and the structure primarily depends on tensile strength of concrete in safety. Under the case of one-way train with primary defects would there be no defect by vibration loads.

Elastic-Plastic Seismic Response Analysis of High-Rise Building with Transfer Storey

2013 ◽  
Vol 671-674 ◽  
pp. 1341-1345
Author(s):  
Jing Wei Nie ◽  
Hong Bing Liu ◽  
Zhao Fang
Keyword(s):  
Seismic Response ◽  
Time History ◽  
Response Analysis ◽  
Seismic Response Analysis ◽  
Drift Angle ◽  
Elastic Plastic ◽  
High Rise ◽  
High Rise Building ◽  
Earthquake Record ◽  
Time History Response

The research on elastic-plastic dynamic response analysis of the high-rise building with transfer storey is carried out under different earthquake record inputs.The displacement time- history response of the top floor and the transfer storey, also the displacement envelope diagram and interlayer drift angle envelope diagram are obtained.Theoretical reference for the design of the weak layer is provided.

scholarly journals Efficiency of Shear Wall Location on Reinforced Concrete Buildingsin Ethiopia under Seismic Excitation

2019 ◽  
Vol 8 (4) ◽  
pp. 10624-10631
Keyword(s):  
Pushover Analysis ◽  
Time History ◽  
Shear Walls ◽  
Time History Analysis ◽  
Seismic Excitation ◽  
High Rise ◽  
Capacity Curves ◽  
History Analysis ◽  
Non Linear ◽  
Dynamic Time

Shear walls play a key role in the lateral-load resistance process in high-rise buildings, as well as resisting the lateral loads generated by seismic forces. This paper examines the effect of shear walls in rectangular, L, and U type and their locations in RC building under seismic excitation. Seismic impact is primarily concerned with structural protection, particularly during the earthquake and also with high-rise buildings, ensuring adequate lateral rigidity to withstand seismic loads is very critical. Rectangular, L and U shaped shear walls was analyzed and compared at various location using non-linear analysis. For analysis three models were considered with various above said shapes at different locations of high rise buildings in high seismic regions of Ethiopia. The structure's seismic capacity and demand were analyzed using non-linear pushover analysis based on displacement. Regular in plane and elevation building for this investigation G+7 was targeted to estimate the structure's seismic response and resistance capacity Non-linear dynamic time-history analysis was performed for comparison, by applying 30 artificially generated ground motion for all sample buildings. The capacity curves of the structures, as derived by pushover analysis were compared for buildings with rectangular, L and U shape shear walls using Seismo-Struct software. Also, the performance levels of structures are estimated and compared using Seismo-Struct software to perform nonlinear dynamic time-history analysis.

Progress in Study on Elastic-Plastic Time History Analysis of Tall Building

2014 ◽  
Vol 578-579 ◽  
pp. 523-526
Author(s):  
Fan Wang ◽  
Xiao Yi Lan ◽  
Ding Ding Liu
Keyword(s):  
Time History ◽  
Time History Analysis ◽  
Tall Building ◽  
Dynamics Analysis ◽  
Analysis Software ◽  
Elastic Plastic ◽  
High Rise ◽  
Advantages And Disadvantages ◽  
History Analysis ◽  
Key Issues

This paper summarizes both advantages and disadvantages of elastic-plastic static and dynamics analysis methods and points out that dynamics analysis is more applicable and accurate for high-rise building analysis, compared to elastic-plastic static analysis. Then, some key issues of elastic-plastic dynamics time history analysis are introduced, based on the understanding of the latest progress of it, including element models of beam, column and shear wall, constitutive laws of steel and concrete, algorithm and analysis software. The research results provide helpful referencesto the application and population of dynamics analysis of tall building.

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