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Articoli di riviste sul tema "SEISMIC FORCE"

Autore: Grafiati

Pubblicato: 11 settembre 2023

Ultima modifica: 25 luglio 2025

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1

Yan, Xian Li, Qing Ning Li, Chang Gao, and Li Ying Wang. "Research on Dynamic Performance of Concrete-Filled Steel Tubular Trussed Arch Bridge under Earthquake." Advanced Materials Research 368-373 (October 2011): 1222–26. http://dx.doi.org/10.4028/www.scientific.net/amr.368-373.1222.

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Taking a double span- swallows-type CFST (concrete-filled steel tubular) trussed arch bridge as an engineering example; a spatial finite element analysis model is established to calculate its dynamic characteristic. The seismic responses in different earthquake input directions are calculated based on the elastic dynamic time history method. Results show that: the out-plane stability of the bridge is weaker than that of the in-plane; the torsion resistance ability of the bridge deck is smaller than that of the arch ribs; the axial force-Fx, shear force-Fz and bending moment-My of the bridge ar

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2

Kumar, Ravi Rausan. "Comparative Study of Framed Structures with Shear Wall Structure." International Journal for Research in Applied Science and Engineering Technology 12, no. 6 (2024): 1103–10. http://dx.doi.org/10.22214/ijraset.2024.63250.

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Abstract: High rise building structures are both a necessity and a matter of sophistication and pride for structural engineers. Buildings crossing 25 to 30 storeys are a common phenomenon these days. But what happens to a structure as it crosses these height limits? Forces of nature in the form of earthquakes and cyclones starts playing brutal games with the structures. Higher the structure goes; higher it attracts the forces and wrath of nature in the form of seismic force. Seismic force, predominantly being an inertia force depends on the mass of the structure. As the mass of the structure i

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3

Kwon, Sun-Yong. "Effect of Inertial and Kinetic Forces of a Soil–Pile–Structure System on the Behavior of a Superstructure Under Earthquake." Applied Sciences 15, no. 9 (2025): 5085. https://doi.org/10.3390/app15095085.

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The seismic behavior of pile-supported structures is influenced by complex interactions between inertial force and kinematic force mainly drawn by soil properties and superstructure characteristics. This study aims to investigate the combined effects of inertial and kinematic interaction on the dynamic response of pile foundations under seismic loading. To achieve this, three-dimensional numerical simulations were conducted using FLAC3D, based on a bridge substructure model. A total of twelve analysis cases were developed by varying input seismic motion levels, soil relative densities, and pil

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4

Said, Abdul Muttalib I., and Esraa Mubder Edaan. "SEISMIC DESIGN OF SINGLE SPAN STEEL GIRDER BRIDGES AND BRIDGES IN SEISMIC PERFORMANCE CATEGORY A." Journal of Engineering 16, no. 03 (2010): 5337–51. http://dx.doi.org/10.31026/j.eng.2010.03.04.

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This paper studies the validity and accuracy of the seismic design force recommended by AASHTO for single span bridges. A parametric study for single steel girder bridges is presented, included the effect of span length and elastomeric bearing and lateral bracing (cross-frame) stiffness. The results of simplified AASHTO method are compared with response spectrum and time history analysis. Also studying the seismic design reqiurements for continuous steel girder bridges in seismic performance category (A), included the effect of span length, seismic zone, effect of elastomeric bearing and cross

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5

Hawkins, Neil M., and S. K. Ghosh. "Seismic-Force-Resisting Systems." PCI Journal 45, no. 5 (2000): 34–45. http://dx.doi.org/10.15554/pcij.09012000.34.45.

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6

Sangeeta, Uikey, and Rahul Satbhaiya Er. "Seismic Response Analysis of Tall Building Using STAAD Pro Software." Journal of Earthquake Science and Soil Dynamics Engineering 3, no. 1 (2020): 1–7. https://doi.org/10.5281/zenodo.3685732.

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The main objective of this whole project is to Seismic Response Analysis Of Tall Building Using Staad Pro Software Load calculations are done manually and analysis of whole structure by STAAD Pro Software. Limit State Design conforming to Indian Standard Code of Practice is method used in STAAD-Pro analysis for designing. STAADPro is the software of professional’s choice. I had done the analysis of frames and manually checked the accuracy of the software with our results obtained. The results proved to be very precise and accurate. Ihad analyzed and designed a G+4, G+9, G+14, & G+19

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7

Bai, Bing, Ze Yu Wu, and Xiao Shan Deng. "Longitudinal Seismic Forces of Long-Span Bridge." Advanced Materials Research 255-260 (May 2011): 1134–37. http://dx.doi.org/10.4028/www.scientific.net/amr.255-260.1134.

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Based on the numerical simulation and finite element method, the longitudinal seismic action of a long-span continuous bridge is systematically analyzed. Four load cases are considered, i.e. bridge without piers, bridge with piers, neglecting friction force and combining friction force and pier scouring respectively. Calculation results show that: when considering the piers, the contribution of piers to bridge longitudinal seismic forces is depending on the concrete problems; when the friction force of rubber supports is regarded, sliding support greatly enhances the longitudinal overall rigid

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8

Akhtar, Mohsin Aakib Shamim. "Dynamic Seismic Analysis of Multi Storey Buildings in Seismic Zone V." International Journal for Research in Applied Science and Engineering Technology 10, no. 2 (2022): 108–15. http://dx.doi.org/10.22214/ijraset.2022.40154.

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Abstract: In India, multi-storied buildings area unit sometimes created because of high value and deficiency of land. Earthquake could be a phenomenon which might generate the foremost harmful forces on structures. Buildings ought to be created safe for lives by correct style and particularisation of structural members so as to possess a ductile sort of failure. To protect such civil structures from significant structural damage, the seismic response of these structures is analyzed along with wind force calculation and forces such as support reactions and joint displacement are calculated and

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9

Borde, Anita Popatrao. "Comparative Study on the Seismic Analysis and Wind Analysis of Multistorey Building with Shear Wall and Diagrid." International Journal for Research in Applied Science and Engineering Technology 13, no. 2 (2025): 464–72. https://doi.org/10.22214/ijraset.2025.66857.

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The present study investigates the behaviour of G+50 storey octagonal shaped building provided with shear wall at different locations and diagrid, by inter-combining all these parameters of shear wall and diagrid; total six model of G+50 storey building are prepared. The seismic and wind analysis of G+50 storey building is carried out by using structural analysis and design computer program STAAD Pro. The dynamic analysis (Response Spectrum Method) of G+50 storey octagonal shaped building with shear wall at a different locations and diagrid is carried out by using structural analysis and desig

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10

Chen, Hong Kai, Hong Mei Tang, Ting Hu, Yi Hu, and Xiao Ying He. "Study on Numerical Simulation for Failure Process of Girder Bridge under Seismic Influence." Advanced Materials Research 530 (June 2012): 122–29. http://dx.doi.org/10.4028/www.scientific.net/amr.530.122.

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Based on the finite element analysis software Midas, it takes response spectrum analysis, and posts the failure mechanism and characteristics of Girder Bridge under intense earthquake. Through the seismic response spectrum displacement maps of Girder Bridge, it finds out that the abutment and foundation deformation is in evidence, especially the top of abutment foundation. Through the study of seismic internal force variation on girder and pier, it indicates that the longitudinal earthquake controls axial force, vertical shearing force and in-plane bending moment, transversal earthquake domina

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11

Paultre, Patrick, Éric Lapointe, Sébastien Mousseau, and Yannick Boivin. "On calculating equivalent static seismic forces in the 2005 National Building Code of Canada." Canadian Journal of Civil Engineering 38, no. 4 (2011): 476–81. http://dx.doi.org/10.1139/l11-021.

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Several major changes were introduced in the seismic design provisions of the 2005 edition of the National Building Code of Canada (NBCC). The lateral earthquake design force at the base and the lateral force distribution along the building height depend on the design spectra and on modification factors that, in most cases, require a large number of interpolations and calculations. This note presents a spreadsheet that facilitates determination of the 2005 NBCC seismic design forces from the equivalent static force procedure.

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12

Liang, Jia. "Response and Parameter Analysis of Reinforced Retaining Wall under Earthquake Loading." Applied Mechanics and Materials 268-270 (December 2012): 702–5. http://dx.doi.org/10.4028/www.scientific.net/amm.268-270.702.

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FEM is use for the mechanical analysis of reinforced retaining wall under earthquake loading. The main results are as following. The displacement and axial force increased with the increased seismic intensity. The displacement and axial force decreased with the increased the length of bar strip. The displacement and axial force decreased with the decreased the spacing of bar strip. The displacement and axial force decreased with the increased physical mechanics parameters of filling. Seismic response was similar under bilateral seismic loading and horizontal seismic loading, seismic response w

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13

Xu, Qiang, and Xing Jun Qi. "Analysis on Seismic Pounding of Curved Bridge." Applied Mechanics and Materials 90-93 (September 2011): 800–804. http://dx.doi.org/10.4028/www.scientific.net/amm.90-93.800.

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Based on the impact phenomenon between the end of the beam and the bridge abutment of the curved continuous bridge during earthquakes, a spatial finite element calculating model with collision element is presented. The law of collision is studied by the nonlinear contact time history analysis method under two three-dimensional ground motions. The variation laws of relative displacement and the internal force at the bottoms of piers are researched. In addition the changing of displacement and internal force at the end diaphragm are studied. The results show that the pounding action can easily l

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14

Ustun, Ozgur, Omer Cihan Kivanc, and Mert Safa Mokukcu. "A Linear Brushless Direct Current Motor Design Approach for Seismic Shake Tables." Applied Sciences 10, no. 21 (2020): 7618. http://dx.doi.org/10.3390/app10217618.

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The progress in material and manufacturing technologies enables the emergence of new research areas in electromagnetic actuator applications. Permanent magnet (PM) linear motors are preferred to achieve precise position control and to meet the need for high dynamic forces in the seismic shake tables that are used in analyzing reactions of structure models. The design approaches on the linear motors used in the seismic shake tables may vary depending on the desired force, stroke and acceleration values. Especially, the maximum width, the maximum depth, the maximum linear motor length in longitu

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15

Wang, Chang-xiang, Meijing Wang, and Jianwen Liang. "Seismic analysis on cross joint of utility tunnel." MATEC Web of Conferences 295 (2019): 03004. http://dx.doi.org/10.1051/matecconf/201929503004.

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The finite element software ABAQUS is used to establish the seismic time-history analysis model of the utility tunnel joints. The viscoelastic boundary is employed to input the seismic wave through the equivalent nodal force. Considering the nonlinearity of the soil and concrete materials, the internal force of the cross-shaped utility tunnel is calculated, and the influence effect and influence range of the cross joints of the utility tunnel are also studied. Studies have shown that the internal forces near the cross joints increase significantly. The research has certain reference value for

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16

Wang, Jinghan, Yanyan Li, and Le Zhang. "Research on the Dynamic Response of a Bedding Rock Slope Reinforced by Pile–Anchor Structures Under Earthquakes: A Case Study of a Section of the Duyun-Shangri-La Expressway Project in Ludian County, Yunnan Province, China." Buildings 14, no. 11 (2024): 3524. http://dx.doi.org/10.3390/buildings14113524.

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Pile and anchor structures are extensively employed for slope stabilization. However, their dynamic response under seismic loading remains unclear and current seismic designs primarily use the pseudo-static method. Here, a three-dimensional numerical simulation of the dynamic behavior of a bedding rock slope supported by pile–anchor systems under earthquakes is conducted. The dynamic calculation for the slope subjected to seismic forces with varying excitation directions and acceleration amplitudes is performed. The dynamic behavior of both the slope and the pile–anchor system is investigated

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17

Sagar, Sunil Kumar. "Seismic Upgradation of Building Using Shear Wall and Bracing." International Journal for Research in Applied Science and Engineering Technology 12, no. 7 (2024): 1038–45. http://dx.doi.org/10.22214/ijraset.2024.63711.

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Abstract: The seismic assessment prepare comprises of exploring in case the structure meets the defined target structural performance levels. The main goal during earthquakes is to assure to people is minimized and beyond that to satisfy postearthquake performance level for defined range of seismic hazards. Rehabilitation prepares points to progress seismic execution and adjust the lacks by increasing quality, firmness or distortion capacity and making strides associations. Hence, a proposed retrofit execution can be said to be fruitful in the event that it comes about an increment in strength

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18

Xin, Chun Lei, and Bo Gao. "Composite Lining Aseismic Design for Fault-Crossing Tunnel Structures." Advanced Materials Research 971-973 (June 2014): 30–34. http://dx.doi.org/10.4028/www.scientific.net/amr.971-973.30.

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Although underground structures have stronger aseismic performance than ground structures, seismic disasters of mountain tunnels were fairly conspicuous in Wenchuan Great Earthquake. On the basis of seismic disaster analysis, a composite lining designfor tunnel structures across active fault was put forward. Three-dimensional numerical simulation method was used to analyze aseismic and damping effect of this structure. The results show that: (1)After setting aseismic and damping structure, the maximum internal forces value in lining the pattern of internal forces will not change. (2)Aseismic a

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19

Heidebrecht, A. C., and A. Rutenberg. "Evaluation of foundation tie requirements in seismic design." Canadian Journal of Civil Engineering 20, no. 1 (1993): 73–81. http://dx.doi.org/10.1139/l93-008.

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A simple structural model is proposed to evaluate the axial force acting on tie beams interconnecting spread footings or pile caps due to differential ground motion estimated on the basis of the travelling wave assumption. The approach is intended to supplement the "ten percent rule" or similar multipliers specified by seismic codes as design axial forces on tie beams. It is shown that the axial force demand is rather modest. However, shear forces between footing and soil may be quite large depending on maximum column displacements and superstructure rigidity. Key words: foundations, tie beams

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20

Deng, Jiang Dong, Zhou Hong Zong, and Zhang Hua Xia. "Study on Seismic Strengthening Demand of Damage Concrete Bridge Piers." Applied Mechanics and Materials 178-181 (May 2012): 2070–74. http://dx.doi.org/10.4028/www.scientific.net/amm.178-181.2070.

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Initial damage often exists in the concrete piers of bridges in service. In this paper numerical analysis was used to study the seismic strengthening behavior of concrete bridge piers with different bending damage degrees, including seismic forces, pier top displacements, steel bar strain and energy dissipation, in order to obtain the strengthening demand to repair the damage piers. The results showing that: initial bending damage reduced the seismic force, increased the pier top displacements and the steel bar strain. After strengthening the pier top displacements and steel bar strain at the

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21

Zhao, Jie, Gui Xuan Wang, and Xu Hua Lu. "Seismic Analysis of Nuclear Project for Joint between Intake Tunnel and Circumfluence Groove." Advanced Materials Research 594-597 (November 2012): 1219–25. http://dx.doi.org/10.4028/www.scientific.net/amr.594-597.1219.

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By adopting dynamic time-history analysis method, the seismic analysis for the joint between intake tunnel and circumfluence groove is performed by FLAC3D. Aiming at the mechanical characteristics of this structure and rocky features, according to the design scheme, the analysis of seismic response is carried out, on the base of which envelopes of internal forces are given in this paper. The results show that change of the temperature has much influence on internal force in the same load effect combination. Temperature load also change the direction of internal force in some part. For the simi

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22

Fujii. "Prediction of the Maximum Seismic Member Force in a Superstructure of a Base-Isolated Frame Building by using Pushover Analysis." Buildings 9, no. 9 (2019): 201. http://dx.doi.org/10.3390/buildings9090201.

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It is essential for the seismic design of a base-isolated building that the seismic response of the superstructure remains within the elastic range. The evaluation of the maximum seismic member force in a superstructure is thus an important issue. The present study predicts the maximum seismic member force of five- and fourteen-story reinforced concrete base-isolated frame buildings adopting pushover analysis. In the first stage of the study, the nonlinear dynamic (time-history) analysis of the base-isolated frame buildings is carried out, and the nonlinear modal responses of the first and sec

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23

Ning, Hao, Xiao Yin Lv, and Yi Jun Wang. "Research on Longitudinal Seismic Calculation Theory of Single-Story Factory Building." Applied Mechanics and Materials 166-169 (May 2012): 2471–77. http://dx.doi.org/10.4028/www.scientific.net/amm.166-169.2471.

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Regarding the distribution modes of longitudinal horizontal seismic forces of single-story factory building with no purlin concrete roof, there are conflicts between Sections 9.8.1 and 5.2.6 in the Seismic Design of Buildings GB50011-2010[1]. We suggested distributing the longitudinal seismic forces according to the proportion of the gravity loads on the subordinate areas of the lateral force components. We recommended replacing clause 1 of section 9.1.8 with “Don’t consider the effective stiffness of the enclosure walls or the partition walls”. Then for the example in Single-story Factory bui

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He, Jian, Yu Jiang, Qichao Xue, Chunwei Zhang, and Jingcai Zhang. "Effectiveness of Using Polymer Bumpers to Mitigate Earthquake-Induced Pounding between Buildings of Unequal Heights." Advances in Civil Engineering 2018 (November 8, 2018): 1–14. http://dx.doi.org/10.1155/2018/7871404.

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Collisions often happen between adjacent buildings without a sufficient gap under seismic loadings. Installing polymer bumpers may decrease the pounding forces between colliding buildings. This paper focuses on the analysis of suppressing pounding effects by using of polymer bumpers. In order to investigate pounding mitigation effectiveness in the condition with and without bumpers, different types of pounding force models are utilized to simulate and calculate frame vibration responses under seismic loads. Firstly, time-history results for pounding force, displacements, and shearing forces in

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25

Li, Jun Qiang, Yi Fan Li, and Yong Peng. "Theoretical Analysis of Seismic Response for Marine Drilling Risers." Applied Mechanics and Materials 423-426 (September 2013): 1531–36. http://dx.doi.org/10.4028/www.scientific.net/amm.423-426.1531.

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With the continuous development of the marine oil industry, risers have become necessary equipment in offshore drilling engineering. On the basis of mode-superposition response spectrum method which is used commonly in anti-seismic design, the seismic responses of the marine drilling riser is analyzed on the theoretical and the related anti-seismic calculation formulas of the discrete system are promoted to the continuous system. The earthquake force and the resultant internal forces when the earthquake happening are analyzed and calculated. The calculation formulas of shear force and bending

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26

Jiang, Zhi Nan, and Zhong Hai Zhao. "Comparison of Base Shear Force Method in the Seismic Design Codes of China, America and Europe." Applied Mechanics and Materials 166-169 (May 2012): 2345–52. http://dx.doi.org/10.4028/www.scientific.net/amm.166-169.2345.

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Seismic design response spectrum and earthquake action in Chinese new seismic code (GB50011-2010), ASCE/SEI7-05 and Eurcode8 were gathered in this paper. Using base shear force method of each code, the authors computed the horizontal seismic forces of a three-story reinforced concrete frame building under the same conditions. The results show that the three static methods roughly approach, while the different parameters lead to discrepancies in calculated values.

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Xiao, Jie Ling, Xian Kui Wei, Ping Wang, and Meng Nan Zhang. "Research on Longitudinal Seismic Response of Continuous Welded Rail on Bridge with High-Pier and Long-Span." Advanced Materials Research 838-841 (November 2013): 1063–68. http://dx.doi.org/10.4028/www.scientific.net/amr.838-841.1063.

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Longitudinal seismic responses of CWR on bridges with high-piers and long-spans under uniform excitation and traveling wave effect were studied. Results are shown as follows: Under seismic action, rail longitudinal forces near beam joints increase greatly than rail expansion forces (due to beam expansion); Designing CWR on bridges with high-piers and long-spans needs to consider influences of traveling wave effect and wave spreading derection; With the increase of the apparent velocity of seismic waves, rail longitudinal force tends to decrease; We suggest that designing of CWR on bridges cros

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He, Jian, Yu Jiang, Qichao Xue, Chunwei Zhang, and Jingcai Zhang. "Energy response analysis of adjacent structures with polymer bumpers under seismic loadings." Advances in Mechanical Engineering 10, no. 12 (2018): 168781401880915. http://dx.doi.org/10.1177/1687814018809157.

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Insufficient gap between adjacent buildings may lead serious poundings under seismic loadings. Installing polymer bumpers may decrease the pounding forces between colliding buildings, which can prevent column yielding from overlarge shearing forces. This article focuses on the analysis on energy responses of adjacent structures equipped with polymer bumpers. Based on a novel pounding analysis method, systematic comparisons of structural pounding performance are conducted and specific results are obtained and discussed. First, time history responses for pounding force, displacements, and yieldi

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Burridge, R., and L. Knopoff. "Body Force Equivalents for Seismic Dislocations." Seismological Research Letters 74, no. 2 (2003): 154–62. http://dx.doi.org/10.1785/gssrl.74.2.154.

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Owen, Thomas E., and Edgar C. Schroeder. "Asymmetrical lateral force seismic source transducer." Journal of the Acoustical Society of America 83, no. 4 (1988): 1713. http://dx.doi.org/10.1121/1.395859.

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Ling, Hoe I., and Alexander H. D. Cheng. "Rock sliding induced by seismic force." International Journal of Rock Mechanics and Mining Sciences 34, no. 6 (1997): 1021–29. http://dx.doi.org/10.1016/s1365-1609(97)80011-1.

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Lin, Zhenwei, Chao Zhang, Jucan Dong, Jianliang Ou, and Li Yu. "Dynamic Response Analysis of a Multiple Square Loops-String Dome under Seismic Excitation." Symmetry 13, no. 11 (2021): 2062. http://dx.doi.org/10.3390/sym13112062.

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The interaction between multiple loops and string cables complicates the dynamic response of triple square loops-string dome structures under seismic excitation. The internal connection between the multiple square loops-string cables and the grid beams was studies to provide a favorable reference for an anti-seismic structure. With a finite element model of the Fuzhou Strait Olympic Sports Center Gymnasium, established by SAP2000 software, the structural dynamic characteristic parameters were obtained first, and then this study adopted a time-history analysis method to study the internal force

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Sonal, Sharma, Gupta Mayank, Sharma Akhilesh, and Gupta Sandeep. "Health Monitoring of a Hospital Building using NDT Technique considering Seismic Load - A Review." Journal of Engineering Analysis and Design 3, no. 1 (2021): 1–6. https://doi.org/10.5281/zenodo.4659610.

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Seismic retrofitting is primarily done to meet the seismic security prerequisites. The arranging of adjustments to existing structures contrasts from new arranging through a critical condition; the current improvement should be taken as the reason of all arranging and building exercises. India is quite possibly the most seismic tremor slanted countries in the world and has experienced a couple of critical or moderate quakes during the latest 15 years. Around 50-60 % of the absolute zone of the nation is defenceless against seismic movement of shifting forces. In this paper we are presenting re

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Yang, Xi Wen, and Zi Bao Lian. "Seismic Displacements Reduction for a Long-Span Cable-Stayed Bridge." Advanced Materials Research 255-260 (May 2011): 840–45. http://dx.doi.org/10.4028/www.scientific.net/amr.255-260.840.

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Floating or semi-floating systems are usually employed for long-span cable-stayed bridges to lengthen their fundamental periods, and accordingly, to reduce their seismic inertial force, but the structures’ seismic displacements could be increased by utilizing these systems. Taking Yong-jiang railway cable-stayed bridge which has a low center of gravity as engineering background, the function of viscous dampers in controlling seismic displacements is studied. Firstly, the rational parameters of dampers are determined by parametric analysis, and then the seismic displacements and forces of the b

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Han, Xu, Bing Han, Yikuan He, Pengfei Li, and Huibing Xie. "An Investigation into the Impact of Time-Varying Non-Conservative Loads on the Seismic Stability of Concrete-Filled Steel-Tube Arch Bridges." Buildings 14, no. 9 (2024): 2739. http://dx.doi.org/10.3390/buildings14092739.

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When the arch rib of the mid-bearing through and lower-bearing through arch bridges undergoes out-of-plane deformation, it is usually subject to the resilience force provided by the flexible hanger, which is known as the “non-conservative force effect” of the suspender. In contrast to the static condition, in the dynamic scenario, the time-varying non-conservative force exerted by the flexible suspender becomes more complex due to dynamic changes in external load. Moreover, the difference in fundamental frequency and vibration period between the bridge system and arch rib may influence the str

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Sharada, P. N. "Seismic Performance Evaluation of Reinforced Concrete Structures." MIS REVIEW:AN INTERNATIONAL JOURNAL, A Peer reviewed Multidisciplinary Refereed Research Journal 10, no. 2 (2018): 65–75. https://doi.org/10.5281/zenodo.14893786.

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This study evaluates the seismic performance of an existing four-story reinforced concrete building originally designed for seismic zone 2 of IS 1893, but now located in zone 3.  Using SAP 2000 software, a nonlinear static pushover analysis was performed to assess the building's behavior under seismic loading.  The analysis generated a capacity spectrum (representing the building's strength) and a demand spectrum (representing the earthquake's force).  Comparison of these spectra showed that the building's capacity exceeded the seismic demand for zone 3.  The analysis concl

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Munteanu, Ruben Iacob, Vasile Calofir, Karol-Cristian Lemnaru, and Cătălin Ponta. "Advanced Investigation into Active Control Force Requirements for Seismic Damage Mitigation of Inelastic Structures." Buildings 15, no. 9 (2025): 1402. https://doi.org/10.3390/buildings15091402.

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This study investigates the effectiveness of active structural control in mitigating seismic damage of inelastic structures. A fuzzy control algorithm is integrated into a custom-developed finite element routine to examine the relationship between maximum control force requirements and the resulting structural damage state. Consequently, a series of nonlinear dynamic simulations was conducted on 3D inelastic numerical models representing five building typologies—three residential, one office, and one school using seismic inputs from two historical earthquakes. Structural damage was quantified

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Vishwanatha, H. S., Sreekeshava K. S., M. Gopal, and S. O. Sunitha. "Impact of Column Shear Force on the Seismic Performance of Open Ground Storey Structures." International Journal of Structural Analysis and Advanced Construction Techniques 1, no. 1 (2025): 53–68. https://doi.org/10.46610/ijsaact.2025.v01i01.001.

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Open Ground Storey (OGS) structures are particularly vulnerable to seismic failures due to their inherent soft storey behaviour, which reduces lateral stiffness and significantly increases shear forces in the ground floor columns. This study aims to analyze the shear forces in columns of three-dimensional (3D) OGS Reinforced Concrete (RC) frames subjected to seismic loads, focusing on the effectiveness of two Lateral Load-Resisting Systems (LLRS): the use of stiff columns at the ground floor and the implementation of shear walls in various configurations. The seismic performance of these syste

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Հայրոյան, Ս․Հ․, та Հ․Ս․ Հայրոյան. "ԼԱՆՋԵՐԻ ՍԵՅՍՄԻԿ ԿԱՅՈՒՆՈՒԹՅԱՆ ԳՆԱՀԱՏՄԱՆ ԽՆԴԻՐՆԵՐԸ". Proceedings of the YSU C: Geological and Geographical Sciences 49, № 1 (236) (2015): 11–16. http://dx.doi.org/10.46991/pysu:c/2015.49.1.011.

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The article relates to the impact of seismic inertial forces on the stability of slopes. In the calculation scheme for clay soils with consistency of IL < 0.5 has been offered to take into account the seismic slope stability of inertial force, and as indicators of shear strength parameters to take the peak strength, on the basis of which to calculate the static stability. For clayey soils with consistency IL > 0.5 in the calculation scheme of stability is offered to take into account the shear strength parameters, obtained in dynamic tests, conduct static analysis excluding seismic force

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Cvetković, Radovan, Predrag Blagojević, and Svetlana Brzev. "Seismic Design of a Typical Mid-Rise Residential Building in Serbia Using Confined Masonry and Reinforced Concrete Frame Systems." Buildings 14, no. 2 (2024): 368. http://dx.doi.org/10.3390/buildings14020368.

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Masonry has been widely used for the construction of residential buildings in Serbia and the majority of European countries. Confined masonry (CM) is a contemporary masonry technology that consists of load-bearing masonry walls enclosed in lightly reinforced horizontal and vertical reinforced concrete (RC) confining elements. CM has been widely used for the construction of low-rise and mid-rise residential buildings in Serbia and the region (Yugoslavia) since the 1960s. The design case study of a typical multi-family residential building located in Niš, Serbia (the third-largest urban center i

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41

Karande, Hrishikesh, and A. U. Bhalerao. "Analysis of RCC Building with Regular and Dumbbell Shaped Shear Wall in Different Types of Zones Using ETABS Software." International Journal for Research in Applied Science and Engineering Technology 11, no. 6 (2023): 14–22. http://dx.doi.org/10.22214/ijraset.2023.52921.

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Abstract: In structural engineering, a shear wall is a vertical element of a seismic force resisting system that is designed to resist in-plane lateral forces, typically wind and seismic loads. In many jurisdictions, the International Building Code and International Residential Code govern the design of shear walls. A shear wall resists loads parallel to the plane of the wall. Collectors also known as drag members; transfer the diaphragm shear to shear walls and other vertical elements of the seismic force resisting system. Shear walls are typically light-framed walls with shear panels, reinfo

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Son, Kwang Ik, Byung Seung Kong, Won Suk Jang, Hee Joong Kim, and Hack Soo Lee. "Probabilistic Approach for Cost Optimization of Structural Materials Using Plastic Hinge Mechanism." Advanced Materials Research 538-541 (June 2012): 3244–48. http://dx.doi.org/10.4028/www.scientific.net/amr.538-541.3244.

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In the seismic design, it is important to consider higher risks of damage under seismic design forces than under other general loads, such as live load, dead load, or wind load. Although the full strength of the structure can be developed to resist various types of earthquake forces with respect to increased safety factor, this design concept may be not appropriate when we consider the economic benefit since the design under the seismic force is normally 15 to 25 % more expensive than the design of elastic response. As a one of the seismic design approaches, plastic hinge mechanism has drawn a

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Wang, Fei, Zhi Fang, and Xin Feng Yin. "Experimental Study on Seismic Performance of Reactive Power Concrete Box Piers." Applied Mechanics and Materials 94-96 (September 2011): 464–68. http://dx.doi.org/10.4028/www.scientific.net/amm.94-96.464.

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Designing the reasonable cross-section and the structural conformation, three Reactive power concrete box piers samples were designed and studied under the constant axial force and reversed horizontal loads. The effect of the reversed horizontal load on the seismic performance of RPC box pier was studied. Such seismic performance as ductility, hysteresis curve, skeleton curve, etc. of RPC box piers is studied by pseudo-static test on three RPC box piers. The simulation results shows that RPC box piers exists excellent performance of resisting seismic force, the direction of horizontal load sig

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Wang, Guofu, Jinhua Shang, Xianfeng Ma, and Xiyong Xu. "Equivalent Inertial Force Method of Seismic Calculation for Subway Station in Soft Site." Shock and Vibration 2016 (2016): 1–9. http://dx.doi.org/10.1155/2016/4751071.

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Abstract (sommario):

On the basis of the structural characteristics of subway stations, structural inertial force can be simplified as multiple concentrated force acting on the member connecting node by using equivalent inertial force method of seismic calculation in soft site, and then internal forces of the structure will be analyzed. According to the principle that the maximum bending moment values of equivalent inertial force method and dynamic time-history analysis method are equal and the location is the same, the value of equivalent inertial force is determined, and the shear and axial force are ensured by

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Lu, Ping, Zichuan Liu, and Tianlong Zhang. "A Machine Learning Model to Predict the Seismic Lifecycle Behavior of a Cross-Sea Cable-Stayed Bridge." Buildings 14, no. 5 (2024): 1190. http://dx.doi.org/10.3390/buildings14051190.

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Abstract (sommario):

Cross-sea cable-stayed bridges encounter challenges associated with cable corrosion and cable-force relaxation during their service life, which significantly affects their structural performance and seismic response. This study focuses on a cross-sea cable-stayed bridge located in Hainan Province. Utilizing an LSTM deep learning model, this study aims to fill in the gaps in short-term cable-monitoring data from the past year using the available cable-force-monitoring data from the same period. The authors of this study interpolated the cable-force data in the absence of sensors and employed a

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46

Yan, Bin, and Peng Liu. "Study on Seismic Performance of Double Spherical Bearing." Advanced Materials Research 255-260 (May 2011): 2488–91. http://dx.doi.org/10.4028/www.scientific.net/amr.255-260.2488.

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Abstract (sommario):

Continuous Beam Bridge was widely used, while seismic problem of it was prominent in meizoseismal area. According to mechanism of DSB, seismic performance of DSB was studied and the parameters of DSB were analyzed later, based on non-navigable bridge of Hong Kong-Zhuhai-Macau Bridge in deep water. It was found that DSB was an effective seismic-isolation device which could significantly reduce the seismic force although seismic displacement of bridge was increased. Yielding force and post-yielding stiffness were two main parameters of DSB.

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Ghosh, Sima, and Richi Prasad Sharma. "Force Polygon and Seismic Active Earth Pressure on the Back of a Retaining Wall Supporting c-F Backfill." International Journal of Geotechnical Earthquake Engineering 2, no. 1 (2011): 20–28. http://dx.doi.org/10.4018/jgee.2011010102.

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The study presents a rational graphical approach to discover the dynamic active earth pressure on the back of a battered face retaining wall having inclined c-F backfill with surcharge load over the top of backfill. Considering the seismic forces as time independent inertia forces acting at the c.g. of the wedge soil, the law of force polygon is applied in the evaluation of seismic active earth pressure. A depth of tension crack in case of c-F backfill is also considered. A detailed parametric study has been made for the variation of seismic active earth pressure coefficients with respect to c

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48

Tokarchuk, V. V., and N. Ya Tsimbel'man. "Concept of combined strain-stress state control of long span structures." Vestnik Tomskogo gosudarstvennogo arkhitekturno-stroitel'nogo universiteta. JOURNAL of Construction and Architecture 26, no. 2 (2024): 113–22. http://dx.doi.org/10.31675/1607-1859-2024-26-2-113-122.

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Purpose: Argumentation of necessity of special protective system design to protect structures in seismic zones and remote areas from specific loads. Such protective system combines seismic isolation and internal force control systems.Research findings: Restrictions of long-span structures construction are reviewed. Such restrictions are caused by building conditions embodied in National Building Codes and Standards. Combined and separate use of seismic isolation and internal force control systems is a critical specific load protection. Present inventions and experience in the field of seismic

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49

Achouri, Abderrahim, and Mohamed Nadir Amrane. "Effect of seismic interaction between twin tunnels on internal forces." STUDIES IN ENGINEERING AND EXACT SCIENCES 5, no. 2 (2024): e10984. https://doi.org/10.54021/seesv5n2-558.

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Abstract (sommario):

The objective of this paper is to investigate the effects of seismic interaction between twin adjacent tunnels on internal forces. A 2D numerical analysis was conducted, considering position, distance, and seismic components as key parameters. The results of this paper demonstrate that as the separation distance between tunnels decreases, internal forces increase, except for the normal force, which decreases. The total principal stresses around the tunnels exhibits the same behaviour. Additionally, the position of the adjacent tunnel clearly influences the internal forces, decreasing in vertic

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50

Goel, Rakesh K., and Anil K. Chopra. "Extension of Modal Pushover Analysis to Compute Member Forces." Earthquake Spectra 21, no. 1 (2005): 125–39. http://dx.doi.org/10.1193/1.1851545.

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Abstract (sommario):

This paper extends the modal pushover analysis (MPA) procedure for estimating seismic deformation demands for buildings to compute member forces. Seismic demands are computed for six buildings, each analyzed for 20 ground motions. A comparison of seismic demands computed by the MPA and nonlinear response history analysis (RHA) demonstrates that the MPA procedure provides good estimates of the member forces. The bias (or error) in forces is generally less than that noted in earlier investigations of story drifts and is comparable to the error in the standard response spectrum analysis (RSA) for

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