Results 21 to 30 of about 46,867 (308)

Fatigue Performance of Reinforced Concrete T-Girders under Cyclic Loading

open access: yesAdvances in Civil Engineering, 2021
This paper examines the performance of reinforced concrete girders under cyclic loading. Seven T-girders were casted and tested. All girders were loaded under different constant cyclic loading in the midspan with the load ratio of 0.14∼0.23 and frequency
Jinquan Zhang   +6 more
doaj   +1 more source

Engineering enzyme access tunnels

open access: yesBiotechnology Advances, 2019
Enzymes are efficient and specific catalysts for many essential reactions in biotechnological and pharmaceutical industries. Many times, the natural enzymes do not display the catalytic efficiency, stability or specificity required for these industrial processes.
Kokkonen, Piia   +4 more
openaire   +3 more sources

Tunnel gradients and aural health criterion for train passengers [PDF]

open access: yes, 2014
An inconvenient consequence of the UIC health and safety criterion for allowable pressure changes in railway tunnels is highlighted. It is shown that the criterion limits allowable speeds in long tunnels with large changes of elevation much more than it ...
Palmero, Natalia Montenegro, Vardy, Alan
core   +1 more source

Evaluation method of highway quality and safety based on finite element analysis

open access: yesElectronic Journal of Structural Engineering, 2022
With the continuous advancement of China's transportation infrastructure, the number and proportion of highway tunnels in expressway construction are increasing year by year.
Weilan Zhao
doaj   +3 more sources

Modelling tunnel thrusters for autonomous underwater vehicles [PDF]

open access: yes, 2008
With 900 Autonomous Underwater Vehicles (AUVs) required over the next decade (Newman et al., 2007) existing survey-style AUVs need improved utilization factors.
Stevenson, P.   +5 more
core   +1 more source

Research on management and application of tunnel engineering based on BIM technology

open access: yesJournal of Civil Engineering and Management, 2019
The emergence of BIM technology has provided powerful technical means for realizing informatization and digitization in the field of engineering construction, which remarkably promotes the transformation and advance of production and management modes in ...
ZhanPing Song   +5 more
doaj   +1 more source

Dynamic Characteristics of a Double-Pylon Cable-Stayed Bridge with Steel Truss Girder and Single-Cable Plane

open access: yesAdvances in Civil Engineering, 2021
The dynamic characteristics are closely linked to the seismic stability and wind-resistant of the bridge. But different bridge types have different dynamic characteristics.
Yong Zeng   +5 more
doaj   +1 more source

Discussion on Landscape and Greening Technology of Highway Structural Tunnel Entrance [PDF]

open access: yesE3S Web of Conferences, 2021
Highway tunnel entrance is not only the exposed part of mountain in the tunnel engineering, but also an integral part of the highway breaking through the mountain.
Ming Liu, Zhiqiang Liu, Rongrong Qiang
doaj   +1 more source

Study on the Influence of Train Dynamic Load on underneath Tunnel Cast-in-Situ Concrete in Early Age

open access: yesShock and Vibration, 2022
The cast-in-situ concrete lining is prone to structural damage, cracks, and other defects, due to the influence of dynamic load at an early age, which is necessary to study the dynamic response.
Yuchao Zheng   +6 more
doaj   +1 more source

Wind loads analysis at the anchorages of the Talavera de la Reina cable stayed bridge [PDF]

open access: yes, 2014
This paper describes wind tunnel tests performed on wind tunnel models of the Talavera de la Reina cable stayed bridge. The work describes the aeroelastic model construction and it is focused on the evaluation and analysis of the mean and peak wind loads
Squicciarini, G.   +9 more
core   +1 more source

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