Magazine of Civil Engineering, No.3(63), 2016


 CONSTRUCTIONS

Search


Durability and deformability of braced bending elements with external sheet reinforcement

V.N. Medvedev, S.D. Semeniuk
Durability and deformability of braced bending elements with external sheet reinforcement

Economic efficiency of the CBEBS (composite bearing element of building structures) construction is achieved through the multipurpose usage of a strengthening element, which provides reliable adhesion between a steel supporting sheet and concrete, sustains a lateral load along durability of oblique sections, provides inflexibility during concrete mix feeding, sustains stretching and compressing forces along the durability sections to longitudinal axes of the element.
Read the article >>>


MODELS
Impact of dam site configuration on 3D stress-strain state of concrete faced rockfill dam

M.P. Sainov
Impact of dam site configuration on 3D stress-strain state of concrete faced rockfill dam

The article deals with the results of numerical modeling of the 3D stress-strain state (SSS) of a 100 m high dam with reinforced concrete face. It is shown that at the location of the dam in a gorge of any shape, the reinforced concrete face is compressed in the direction from one side to the other and in the direction along the slope it may have tensile stresses.
Read the article >>>

Detailed characteristics of the near-wall flow containing unsteady viscous sublayer in smooth channel

I.A. Rylova
Detailed characteristics of the near-wall flow containing unsteady viscous sublayer in smooth channel

Taking into consideration the experimental data on the longitudinal and the normal to the wall velocity fluctuations and the correlation coefficient between the fluctuations, the turbulent and viscous friction components near the wall were determined.
Read the article >>>


METHODS
Surrogate modeling for initial rotational stiffness of welded tubular joints

M.R. Garifullin, A.V. Barabash, E.A. Naumova, O.V. Zhuvak, T. Jokinen, M. Heinisuo
Surrogate modeling for initial rotational stiffness of welded tubular joints

Recently, buildings and structures erected in Russia and abroad have to comply with stringent economic requirements. Buildings should not only be reliable and safe, have a beautiful architectural design, but also meet the criteria of rationality and energy efficiency. In practice, this usually means the need for additional comparative analysis in order to determine the optimal solution to the engineering task. Usually such an analysis is time-consuming and requires huge computational efforts. In this regard, surrogate modeling can be an effective tool for solving such problems. This article provides a brief description of surrogate models and the basic techniques of their construction, describes the construction process of a surrogate model to calculate initial rotational stiffness of welded RHS joints made of high strength steel (HSS).
Read the article >>>

—onstruction management in terms of indicator of the successfully fulfilled production task

V.G. Burlov, A.M. Grobitski, A.M. Grobitskaya
—onstruction management in terms of indicator of the successfully fulfilled production task

The article considers the model of the administrative decision based on synthesis It allows knowing the results of task implementation in advance. With this model it is possible to create conditions for a guaranteed solution to the task.
Read the article >>>

Contact us Site map
All rights reserved