Curvature Analysis for Composite With Orthogonal, Asymmetrical Multi‐layer Structure

Šliseris, Jānis; Rocēns, Kārlis

doi:10.3846/jcem.2010.28

Cited by 10 publications

(5 citation statements)

References 10 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Camber of the main cable begins to increase but the level of prestressing begins to fall, so internal forces in the main cable decrease and then the process of steel yield stops at the defined level. It was assumed that if CFRP layer destructs in one place of the cable, it will be totally excluded from the cable work (Sliseris, Rocens 2010).…”

Section: Determination Of Rational Cross-section Area Of Layersmentioning

confidence: 99%

Hybrid composite cable for prestressed suspension structure

Goremikins

Rocēns

Serdjuks

et al. 2014

Proceedings of the International Conference „Innovative Materials, Structures and Technologies”

View full text Add to dashboard Cite

Abstract.A prestressed suspension structure is a type of structures that allows covering long spans due to rational use of structural materials. Prestressing of a suspension structure allows minimizing cinematic displacements. The prestressed suspension structure with the main span equal to 200 m was considered as an object of investigation. Replacement of a single steel main cable of the prestressed suspension structure by the hybrid composite cable with CFRP (Carbon Fibre Reinforced Polymer) middle layer and external steel layers with cross-section variable by the cable length considerably decreases dead weight of the cable. Hybrid composite cable ensures functioning of the structure in case of destruction of the middle CFRP layer. The considered prestressed suspension structure was investigated by the FEM software ANSYS. Rational steel distribution by the cable length was determined by optimization. Behaviour of the hybrid composite main cable in the case of destruction of the middle CFRP layer was experimentally tested using the physical model. The dynamic coefficient was obtained.

show abstract

Section: Determination Of Rational Cross-section Area Of Layersmentioning

confidence: 99%

Hybrid composite cable for prestressed suspension structure

Goremikins

Rocēns

Serdjuks

et al. 2014

Proceedings of the International Conference „Innovative Materials, Structures and Technologies”

View full text Add to dashboard Cite

show abstract

“…Cable truss is modelled by two node link type compression less finite elements (LINK10 in ANSYS). The analysis type is geometrically nonlinear static including large-deflection effects, because suspension cable structures are characterized with large deflections before stabilization (Šliseris, Rocēns 2010;Eurocode 3 2007).…”

Section: Calculation Of Rational Characteristics Of Cable Truss For Smentioning

confidence: 99%

Decreasing Displacements of Prestressed Suspension Bridge

Goremikins

Rocēns

Serdjuks

2012

Journal of Civil Engineering and Management

View full text Add to dashboard Cite

A suspension bridge is the most suitable type for a long-span bridge due to rational use of structural materials. Increased deformability, which is conditioned by the appearance of the elastic and kinematic displacements, is the major disadvantage of suspension bridges. The problem of increased kinematic displacements under the action of symmetrical and non-symmetrical load can be solved by the prestressing. A prestressed suspension bridge with span of 200 m was considered as an object of investigations. The cable truss with the cross web was considered as the main load carrying structure of prestressed suspension bridges and was compared with the single cable. The considered prestressed suspension bridge was investigated by the FEM program ANSYS 12 and by the small scale physical model. Rational, from the point of view of minimal vertical kinematic displacements, main load-carrying structure of prestressed suspension bridge was developed. The obtained results shows, that usage of cable truss with the cross web as the main load carrying structures of prestressed suspension bridge in comparison with the single cable, reduces vertical displacements upwards by 63.1%, downwards by 1.8% and total displacements by 29.6% under the action of worth situated load.

show abstract

“…Accurate evaluation of all factors by determining the slip of layers in respect of each other and its effect on the structural behaviour under the acting load is a complicated task (Bullo, Di Marco 2004;Gurkšnys et al 2005;Šliseris, Rocēns 2010). Commonly, it is suggested to use empirical formulas or experimental data like it was suggested in the design standards.…”

Section: Introductionmentioning

confidence: 99%

Determination of Stiffness of the Connections of Composite Steel and Concrete Bridge Deck by the Limit Permissible Deflections

Marčiukaitis

Valivonis

Jonaitis

et al. 2013

The Baltic Journal of Road and Bridge Engineering

View full text Add to dashboard Cite

The composite steel and concrete structures are used for constructing bridge floors and others buildings. The joint action of composite structures as well as their economic efficiency depends on the connection between the layers, i.e. stiffness of the steel beam and the concrete slab. Under the effect of external load in the connection of steel and concrete the shear deformations occur. The size of these deformations depends on the effective shear stiffness of the connection of layers. When designing the composite steel and concrete structures it is very important to accurately calculate their deflections. Deflection is largely dependent on the stiffness of the connection of steel and concrete. In isolated cases it is purposive to calculate the necessary stiffness of the connection of steel and concrete taking into consideration the permissible deflection of the composite steel and concrete structure. This paper gives the methodology which, based on the known permissible deflection of the structure, allows to calculate the necessary equivalent effective shear modulus of the steel-concrete connection. Experimental investigations of the composite steel and concrete beams were carried out. Deflections of the composite beams, also the shear deformations of steel and concrete connections and the effective shear stiffness of this connection were determined. Theoretical calculations of the effective shear stiffness of the connection of concrete slab and steel beam of the experimental composite steel and concrete beams were conducted. Investigations showed a rather good correspondence between the experimental and theoretical investigation results.

show abstract

Curvature Analysis for Composite With Orthogonal, Asymmetrical Multi‐layer Structure

Cited by 10 publications

References 10 publications

Hybrid composite cable for prestressed suspension structure

Hybrid composite cable for prestressed suspension structure

Decreasing Displacements of Prestressed Suspension Bridge

Determination of Stiffness of the Connections of Composite Steel and Concrete Bridge Deck by the Limit Permissible Deflections

Contact Info

Product

Resources

About