نتایج جستجو برای: girder span

تعداد نتایج: 46047  

Journal: :FES Journal of Engineering Sciences 2021

Cantilevers are a part of our life, they everywhere: bridg–es, building’s balconies, traffic signs, car parking shades even the aircraft’s wings. The long cantilevers buildings always present as big challenge to structural engineers in their practice life. behavior these depends on several factors, such rigidity slab, columns or walls, span continuity... etc. But real dilemma lies economical ch...

Journal: :Buildings 2023

The possibility of blast impact loads acting on bridge structures is gradually increasing. local and entire explosion response law a concrete box girder still unclear, anti-explode devices for reducing the are scarce. In this study, rotational inertia particle damper (R-IPD) 1:4 scale model typical three-span continuous-girder were designed manufactured. Subsequently, an test with without R-IPD...

Journal: :Bulletin of Earthquake Engineering 2023

Continuous rigid-frame bridges (CRFBs) have been widely constructed in high seismicity areas western China. To investigate the seismic response characteristics and whiplash effect mechanism of CRFBs under near-fault ground motions, a long-span CRFB with piers is selected as prototype bridge, nonlinear finite element model developed based on OpenSees. Three groups namely having forward-directivi...

The research described in this paper focuses on the application of modal strain techniques on a multi-girder bridge superstructure with the objectives of identifying the presence of damage and detecting false damage diagnosis for such structures. The case study is a one-third scale model of a slab-on-girder composite bridge superstructure, comprised of a steel-free concrete deck with FRP rebars...

2012
Mohammed Mawlana Amin Hammad Ahmad Doriani Shayan Setayeshgar

This paper presents a modelling approach that can be used by contractors to plan elevated highway reconstruction projects. The proposed model estimates the project duration, productivity rate of the operation, and visualizes the output using 4D modelling. In this paper, the focus is on the demolition and construction of a box girder elevated highways as part of an interchange reconstruction pro...

Journal: :Journal of Bridge Engineering 2022

Evaluating the aerodynamic instability of a bridge girder fitted with attachments such as handrails is critical for wind-resistance design long-span bridge. However, effects detailed configuration on performance have not been sufficiently studied. In this study, heaving vortex-induced vibration (VIV) box-girder was evaluated nongrid and grid-like handrail cases by free wind tunnel tests. The VI...

2016
Ying Wang

Slab-girder structures composed of steel girder and reinforced concrete slab are widely used in buildings and bridges in the world. Their advantages are largely based on the composite action through the shear connection between slab and girder. In order to assess the integrity of this kind of structures, numerous vibration-based damage identification methods have been proposed. In this study, a...

2011
J. Á. Jurado S. Hernández F. Nieto A. Baldomir

There are multiple configurations permitted for a cable stayed bridge such as the number of spans, tower shapes, and cable arrangements. Therefore it is always important to study the behaviour of these types of structures against strong winds so that aeroelastic instabilities do not appear. This paper contains detailed aeroelastic analyses of three cable stayed bridges of very different configu...

Journal: :Sustainability 2022

The definition of sustainability includes three fundamental pillars: economic, environmental, and social. Studies the economic impact on civil engineering infrastructures have been focused cost reduction. It is not necessarily in line with due to lack other factors. Moreover, social pillar assessment has weakly developed compared environmental ones. essential focus evaluate clear indicators tha...

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