Results 1 to 10 of about 201,687 (291)

Analysis of technical and operational condition of urban reinforced concrete bridge structures [PDF]

open access: yesE3S Web of Conferences, 2023
The article analyzes the technical condition of urban reinforced concrete bridge structures. The authors studied the technical passports of all bridges and overpasses in Tashkent and made direct technical inspections of more than 10 bridge structures. As
Shermukhamedov Ulugbek   +3 more
doaj   +1 more source

Manufacturing of fiber-reinforced concrete bridge arches

open access: yesВестник Дагестанского государственного технического университета: Технические науки, 2021
Objective. A new method of manufacturing arches for a fiber-reinforced concrete bridge in the form of an analogue of permanent formwork is considered. Within the framework of this work, research results have been obtained that confirm the effectiveness ...
M. R. Nakhaev
doaj   +1 more source

Research on Intelligent Evaluation System of Load-bearing Capacity of Existing Reinforced Concrete Bridge [PDF]

open access: yesE3S Web of Conferences, 2020
The intelligent evaluation system of existing reinforced concrete bridge “BLP” is a special software for the load-bearing capacity rapid analysis and evaluation of the existing reinforced concrete bridge, which was developed by the Highway Research ...
Zhao An, Xu Qiang, Song Jianyong
doaj   +1 more source

Theoretical Analysis on Reinforced Concrete Bridge from Non-linear Temperature Effect

open access: yesSelected Scientific Papers: Journal of Civil Engineering, 2022
The paper presents a theoretical analysis that models the effects of temperature load induced on a two-pole, twobox reinforced concrete bridge. Implemented was theoretical analysis of thermodynamic effects, which was performed on a closed double-box ...
Tomko Michal, Demjan Ivo
doaj   +1 more source

The results of field studies of the stress-strain state steel-reinforced concrete span structure of the railway bridge

open access: yesNauka ta progres transportu, 2022
Purpose. The purpose of the study was to determine the stress-strain state and operating characteristics of the existing steel-reinforced-concrete span structure under the railway after long-term operation under static and dynamic loads. Methodology.
M. V. Hernich, S. V. Kliuchyk
doaj   +1 more source

Performance comparison of steel fiber reinforced concrete and conventional reinforced concrete cast-in-place half-scale concrete bridge decks under bending

open access: yesAdvances in Bridge Engineering, 2023
The most time-consuming processes involved in bridge deck construction are laying and tying conventional reinforcement and verifying the required cover.
Sam Kafaji, Raad Azzawi
doaj   +1 more source

The Impact of Motivation on Work Efficiency for Both Employers and Employees also During COVID-19 Pandemic: Case Study from Armenia [PDF]

open access: yesBusiness Ethics and Leadership, 2020
The article summarizes the main arguments and counterarguments within the scientific discussion on motivation and its impact on work efficiency. The main goal of the research is to analyze the impact of motivation on work efficiency for both employees ...
Gayane Tovmasyan, Diana Minasyan
doaj   +1 more source

Precast Bridges of Bamboo Reinforced Concrete in Disadvantaged Village Areas in Indonesia

open access: yesApplied Sciences, 2020
Bamboo is an inexpensive, environmentally friendly, and renewable building material that thrives in Indonesia. Bamboo has a high tensile strength but also has weaknesses, namely, it is easily attacked by insects and has high water absorption. Utilization
Muhtar
doaj   +1 more source

Fatigue Performance of Rib Beam Bridge Slabs Reinforced with Polyurethane Concrete Based on the Damage Theory

open access: yesBuildings, 2022
In this paper, the rib beam bridge slabs were taken as the research object. Static load and fatigue tests were carried out on the benchmark bridge slabs to determine the ultimate load capacity and fatigue life of the bridge slabs.
Yifan Wang   +5 more
doaj   +1 more source

Road and bridge construction across gypsum karst in England [PDF]

open access: yes, 2002
Gypsum karst problems in the Permian and Triassic sequences of England have caused difficult conditions for bridge and road construction. In Northern England, the Ripon Bypass crosses Permian strata affected by active gypsum karst and severe subsidence ...
Anthony H Cooper   +20 more
core   +3 more sources

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