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181
Seismic Fragility Analysis of Bridge Group Pile Foundations considering Fluid-Pile-Soil Interaction
Published 2020-01-01“…The effects of pile-water interaction, soil conditions, and different types of ground motions on the bridge pier fragilities are studied and discussed. Seismic fragility of the pier-group pile system shows that Sec C (the bottom section of the pier) is the most vulnerable section in the example fluid-structure-soil interaction (FSSI) system for all four damage LSs. …”
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182
L’aqueduc du Gier : nouvelles données sur le pont-siphon de Beaunant à Sainte-Foy-lès-Lyon (Métropole de Lyon)
Published 2023-12-01“…Its deck was 290 m long at the deck, it stood 18 m high at its central part and had 30 arches supported by 29 piers. Fifteen arches remain today.The excavation, motivated by the improvement in the state of the river, revealed the opus quadratum foundations at the base of two piers (17 and 19) and uncovered the well-preserved remains of a wooden frame used to carry out the opus caementicium for the foundation block of pier 18.On the right bank of the river, this operation made it possible, against all odds, to bring to light the foundation block of pier 17, whose 38° tilt easterly testifies to the violence of the bridge collapse. …”
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183
Retrofitting of a Multi-Span Simply Supported Bridge into a Semi-Integral Bridge
Published 2025-01-01“…They often suffer from problems of cracks in the link slabs over piers, and the deterioration and damage of deck expansion joints at abutments. …”
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184
Effect of Ground Motion Orientation on Seismic Responses of an Asymmetric Stress Ribbon Pedestrian Bridge
Published 2022-01-01“…The negative bending moment of the ribbons, the pier top displacement, and the pier base moment at the transverse direction were sensitive to the ground motion orientation. …”
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185
Optimal Seismic Intensity Measure Selection for Isolated Bridges under Pulse-Like Ground Motions
Published 2019-01-01“…Four typical isolated girder bridge types with varied pier height (from 4 m to 20 m) are employed to conduct the nonlinear time history analysis. …”
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186
The Influence of Buckling Mode and Buckling Stability Coefficient of Rigid-Frame Bridge during Construction in Cold Region
Published 2022-01-01“…The results show that with the increase of the bridge height, the overall stability factor of the bridge is decreasing, and the safety factor of the single-limb thin-walled hollow pier is relatively larger than that of the double-limb thin-walled hollow pier. …”
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187
Community Composition of Epibiont Hydroids of the Naturalized Alien Macroalga <i>Acanthophora spicifera</i> in Pichilingue, Mexico
Published 2025-01-01“…The investigation was carried out in two season periods, corresponding to the warm and cold seasons on the pier of the Autonomous University of Baja California Sur (UABCS) Pichilingue research station. …”
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188
Pounding Effects in Simply Supported Bridges Accounting for Spatial Variability of Ground Motion: A Case Study
Published 2012-01-01“…In order to include the effects due to the main nonlinear behaviours of the bridge components, a 3D finite element model has been developed, in which the pounding of decks at cap-beams, the friction of beams at bearings, and the hysteretic behaviour of piers have been accounted for. The sensitivity analysis has shown that the asynchronism of ground motion greatly influences pounding forces and deck-pier differential displacements, and these effects have to be accurately taken into account for the design and the vulnerability assessment of long multispan simply supported bridges.…”
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189
A Study on the Seismic Response Characteristics of an Oblique Pile Group-Soil-Structure with Different Pile Caps
Published 2019-01-01“…The maximum horizontal displacement of the pier of the two models occurs at the same time.…”
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190
Random Vibration Analysis of Train Moving over Slab Track on Bridge under Track Irregularities and Earthquakes by Pseudoexcitation Method
Published 2015-01-01“…The track and bridge is simulated by a rail-slab-girder-pier interaction finite element model. The coupling equations of motion are established based on the wheel-rail interaction relationship. …”
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191
Lateral Seismic Response and Self-Centering Performance of a Long-Span Railway Continuous Beam-Arch Bridge
Published 2020-01-01“…The seismic isolation system with sliding bearings and energy dissipation braces can control the relative displacement between the pier and beam greatly, and the SCED can reduce or even eliminate the residual displacement between pier and beam. …”
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192
Experimental Verification of Applying Active Control Method as Virtual Support for Relief Bridge
Published 2019-01-01“…The feasibility and practicality of applying this proposed NEM to form a virtual pier of a bridge have been verified in this study.…”
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193
Effects of Different Construction Sequences on Ground Surface Settlement and Displacement of Single Long Pile due to Twin Paralleled Shield Tunneling
Published 2021-01-01“…A three-dimensional finite element model was established to analyze the pier settlement, ground surface settlement trough, and the vertical and horizontal displacement of pile under different construction sequences in layered soil. …”
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194
Influence of Blasting Vibration on Young Concrete Bridge: A Case Study of Yesanhe Super Large Bridge
Published 2017-01-01“…When vibration velocity of pier foundation is within 2 cm/s, the maximum tensile and compressive stress of box girder concrete are less than the tensile and compressive strength of concrete, so that blasting vibration unlikely gives impact on the safety of bridge.…”
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195
Obsesiones estructurales
Published 2016-08-01“… Pier Luigi Nervi architetture voltate: verso nuove strutture. …”
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196
Sensor Placement Strategies for the Seismic Monitoring of Complex Vaulted Structures of the Modern Architectural Heritage
Published 2018-01-01“…In this paper, the main issues regarding seismic protection and analysis of the modern architectural heritage are introduced and applied to one of the vaulted structures built by Pier Luigi Nervi in the Turin Exhibition Centre. …”
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197
DYNAMIC ANALYSIS OF FPB ISOLATED BRIDGES BASED ON SIMPLIFIED MECHANICAL MODEL
Published 2015-01-01“…Simplified mechanical model of FPB isolated bridges was established,the response amplitude was calculated used mode superposition method.The accuracy of results was verified by finite element simulation based on SAP2000.It was considered that the response amplitude agreed well with that of finite element simulation.Under the action of El Centro seismic wave,the results can meet engineering precision requirements basically.The response of girder and pier were mainly influenced by the isolated mode and second mode.…”
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198
Experimental Study on Shape and Discharge Capacity of Spillway of Yuyang Lake
Published 2020-01-01“…According to the actual operation of spillway of Yuyang Lake in Jiyuan City,this paper systematically studies the spillway shape,discharge capacity,flow pattern &velocity,pressure distribution,energy dissipation and scour prevention based on the hydraulic model test,and further optimizes the engineering design through the comparison test of different schemes.The test results show that the discharge capacity can meet the design requirements after the spillway inlet elevation is reduced;and the energy dissipation is improved after the stilling basin is changed from the secondary level to the first level,which can play a good role in protecting the downstream.In view of the phenomenon that the water flows through the top of the wall,reasonable suggestions are put forward to heighten the pier head at the inlet and the wing wall at the downstream of the spillway.…”
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199
Study on Rectifier Technology in Forebay of Pumping Station
Published 2020-01-01“…This paper analyzes the inflow characteristics of the forebay of urban pumpingstation, summarizes and classifies the existing rectifier technology of the pumping station intofive types such as diversion pier rectifier technology, diversion grid rectifier technology,bottom sill rectifier technology, pressure plate rectifier technology and water distribution holerectifier technology, and introduces the engineering application status of each technology, andthe advantages, disadvantages and applicable scope of each technology in detail, which can providereference for improving the reliability of urban pumping station system.…”
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200
Film routes in Basilicata
Published 2018-12-01“…Most of them, from The Gospel According to St. Matthew by Pier Paolo Pasolini to Christ stopped at Eboli by Francesco Rosi, have shown the misery and the backwardness of Basilicata, inspired by the works of some authors as Carlo Levi and Ernesto De Martino. …”
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