A butterfly web girder is a box that has discretely distributed side-surface openings. Due to these openings, girders show better aerodynamic performance than conventional girders. This study aims investigate the effects of openings on instability when it placed in tandem with another girder. In addition, this whether one affected by an adjacent series wind tunnel tests will be carried out and ...

Distortion-induced fatigue cracking in unstiffened web gaps is common in steel bridges. Previous research by the Minnesota Department of Transportation (Mn/DOT) developed methods to predict the peak web gap stress and maximum differential deflection based upon field data and finite element analyses from two skew supported steel bridges with staggered bent-plate and cross-brace diaphragms, respe...

The influence of composite girders on the modified buckling factor for columns was investigated in both braced and unbraced frames. girders' end conditions were represented as rigid hinged . Furthermore, based proposed stiffness parameter, derived formulation follows same assumptions standard effective length (K-factor). Moreover, suggested equations frames obtained using slope-deflection metho...

Purpose: There are many bridges being constructed in Nepal. Brides of different types like Bailey truss, cable stayed, RCC Arch, pre-stressed, Slab, T-Beam, Steel Box, Stone masonry arch, suspension, and suspended tendered at present Most the T-beam Prestressed bridges. It has been found need to carry out research develop logical price adjustment coefficient ranges for contracts make provision ...

Many bridges built during the colonial times in Australia have timber girders as load transferring elements and they are still service with increased traffic loads consistent deterioration. Most of those notched at ends for better seating arrangement. Therefore, it is necessary to quantify strength characteristics order ensure structural safety make intervention extend their lives. Hence experi...

Pemilihan metode kerja Erection girder yang tepat dan efektif akan mendukung pekerjaan di proyek. Proyrk percepatan menuntut kontraktor dapat menyelesaikan waktu. Kondisi proyek cuaca berakibat erection tidak dikerjakan secara frontal jika diberikan solusi maka tercapainya target waktu pekerjaan. Penelitian kuantitatif dengan studi kasus memerlukan data berbentuk (angka), pembahasan dilakukan m...

The aim of this paper is to present proper finite element (FE) models which can predict the dynamic characteristics and behaviour of a railway bridge under dynamic train loading for the purposes of fatigue design and assessment. As a case study, an existing six-span continuous welded plate girder railway bridge in Stockholm is investigated. A number of detailed three-dimensional FE models of th...

background: in diagnostic radiology lead apron, are usually used to protect patients and radiology staff against ionizing radiation. lead apron is a desirable shield due to high absorption and effective attenuation of x-ray photons in the diagnostic radiology range. objective: although lead aprons have good radiation protection properties, in recent years, researchers have been looking for alte...

Increasing of motorcycle numbers in big cities Indonesia, especially Surabaya. The traffic becomes crowded and road capacity is exceeded. Because the increasing volume, western part Surabaya, government built a flyover west outer ring to provide solution congestion This study aimed determine comparation between PC-I girder PC-U used. In road, method was used calculate prestressed beam fully pre...