Evaluation of the Increased Dynamic Effects on the Highway Bridge Superstructure

Paeglīte, Ilze; Smirnovs, Juris; Paeglītis, Ainārs

doi:10.7250/bjrbe.2018-13.418

Cited by 5 publications

(3 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…They comprehensively compared the main bridge types at this stage including cable-stayed bridges, suspension bridges, continuous rigid frame bridges, etc. [20][21][22][23][24][25][26][27][28][29][30], analyzed the advantages of new bridges, and provided a reference for the construction of similar bridges in the future. The cable-stayed bridge with single tower and single cable plane is a new type of bridge, and its dynamic characteristics have increased research value.…”

Section: Introductionmentioning

confidence: 99%

Modal Analysis of a Steel Truss Girder Cable-Stayed Bridge with Single Tower and Single Cable Plane

et al. 2022

View full text Add to dashboard Cite

The dynamic characteristics of bridge structures are important in wind stability analysis, seismic design, fatigue assessment, health inspection, and maintenance of bridge structures; however, the mechanical and dynamic properties of different bridge types are different. A long-span cable-stayed bridge has the advantages of large flexibility, long natural vibration period, low natural frequency, dense spectrum, and denser modal than those of general structures. In this paper, the dynamic characteristics of a cable-stayed bridge with single pylon and single cable plane in the maximum cantilever stage and the complete bridge are analyzed. The single-tower cable-stayed bridge has some unique characteristics, such as lower cost, and a more beautiful appearance, but its torsional rigidity is lower, which increases the risk of wind damage and earthquake damage. Therefore, a finite element analysis of this bridge in the maximum cantilever state is carried out, and the influences of the main components’ rigidity, the inclination angles of the stayed cables, the supporting conditions, and the locations of the auxiliary piers are analyzed for the sustainability of this type of cable-stayed bridge. The analysis results show that a cable-stayed bridge with single pylon and single cable plane has more flexibility, and that the lateral rigidity and torsional rigidity are smaller. Structure rigidity, dip angles of the stayed cables, and positions of the auxiliary piers all have significant influences on the dynamic characteristics of cable-stayed bridges.

show abstract

Section: Introductionmentioning

confidence: 99%

Modal Analysis of a Steel Truss Girder Cable-Stayed Bridge with Single Tower and Single Cable Plane

et al. 2022

View full text Add to dashboard Cite

show abstract

“…Casalegno and Russo [26] also studied the dynamic characteristics of the bridge using new material. e dynamic characteristics of many other bridges have been studied, including ordinary cable-stayed bridges, suspension bridges, and continuous rigid frame bridges [27][28][29][30][31][32][33][34][35][36][37]. ese studies mainly focus on the dynamic characteristics of widely used general bridges and new bridges.…”

Section: Introductionmentioning

confidence: 99%

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

Zeng

et al. 2021

Advances in Civil Engineering

View full text Add to dashboard Cite

The dynamic characteristics are closely linked to the seismic stability and wind-resistant of the bridge. But different bridge types have different dynamic characteristics. In order to study the dynamic characteristics of a double-pylon cable-stayed bridge with a single-cable plane and steel truss girder whose main span is the longest in the world, the dynamic load test was done, and the finite element and the subspace iteration methods were used to analyze the vibration mode of the bridge. The influence of different structural parameters on the dynamic characteristics of the bridge was analyzed. The changed structural parameters are cable layout, stiffness of steel truss girder, stiffness of stayed cables, stiffness of pylons, the concentration of dead load, number and location of auxiliary piers, and structural system. The results show that the bending and torsion resistance of the double-pylon cable-stayed bridge with a single-cable plane and steel truss girder is weak. The torsional stiffness of the cable-stayed bridge with a double-cable plane is stronger than that of the cable-stayed bridge with a single-cable plane. The seismic stability and wind-resistant of the bridge can be improved by using light dead load, improving the stiffness of pylon and girder, and adding auxiliary piers scientifically. However, the change of cable stiffness has a complex influence on the dynamic characteristics of the bridge. The conclusion can offer references for the construction, maintenance, and design of the same type of bridges.

show abstract

“…Safe exploitation of steel structural members requires evaluation of their experimental load-carrying capacity (Paeglite, Smirnovs, & Paeglitis, 2018). A range of plastic behaviours of connections and cross-sections that the considered structure may demonstrate can be determined in this case.…”

Section: Introductionmentioning

confidence: 99%

Behaviour of a Space Inverted Triangular Steel Truss

Podkoritovs

Serdjuks

Goremikins

et al. 2020

BJRBE

View full text Add to dashboard Cite

Behaviour of the inverted triangular truss, which is widely used as a bridge girder, was investigated analytically and experimentally. Cold-formed square hollow cross-sections of steel grade S355J2H with dimensions 80 mm × 4 mm, 90 mm × 4 mm and 40 mm × 4 mm were selected for the top and bottom chords and bracing elements of the truss with 12.56 m span, correspondingly. Five FEM models were developed using software Dlubal RFEM. The main specific feature of the models is the difference in modelling of joint behaviour considering plastic behaviour and stiffness of truss connections. It was shown that the FE model of the truss where the members were modelled by the truss type finite elements and the joints modelled by the shell type ones allows predicting behaviour of the truss with precision of up to 3.9%. It was shown that precision of the suggested FEM model grows 4.36 to 4.62 times in comparison with the traditional FEM models where the members were modelled by the truss finite elements with the pinned and rigid joints in case of plastic joint behaviour. Precision of the suggested FEM model is identical to that of the traditional FEM models regarding the case of elastic joint behaviour.

show abstract

Evaluation of the Increased Dynamic Effects on the Highway Bridge Superstructure

Cited by 5 publications

References 15 publications

Modal Analysis of a Steel Truss Girder Cable-Stayed Bridge with Single Tower and Single Cable Plane

Modal Analysis of a Steel Truss Girder Cable-Stayed Bridge with Single Tower and Single Cable Plane

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

Behaviour of a Space Inverted Triangular Steel Truss

Contact Info

Product

Resources

About