Preliminary Analysis and Instrumentation of Large-Span Three-Sided Reinforced Concrete Culverts

2022 ◽  
Vol 27 (2) ◽  
Author(s):  
Safwat Ramadan ◽  
M. Hesham El Naggar ◽  
Osama Drbe ◽  
Kareem Embaby
Keyword(s):  
Reinforced Concrete ◽  
Preliminary Analysis ◽  
Large Span

Discussion on the Measurements in Cantilever Construction with Guyed Hanging Basket

2014 ◽  
Vol 580-583 ◽  
pp. 2797-2800
Author(s):  
Fang Ru Gui
Keyword(s):  
Reinforced Concrete ◽  
Construction Process ◽  
Large Span ◽  
Cable Stayed Bridge ◽  
Beam Segment ◽  
Development Direction ◽  
Operating Space ◽  
Cantilever Construction

Guyed hanging basket is qualified with reasonable structure , great carrying ability and clear construction process, and also can provide a good operating space for beam segment construction. Applying cantilever pouring construction with guyed hanging basket should be the development direction of the construction of large-span reinforced concrete cable-stayed bridge. By taking the girder construction of the grand bridge over Beijing-Hangzhou Canal as an example, this paper introduces the measurements in cantilever construction with guyed hanging basket, aiming at providing reference for other similar projects.

scholarly journals PRECAST SHELLS MADE OF UNITS BENT DURING FORMING

2021 ◽  
pp. 66-77
Author(s):  
Boris SOKOLOV ◽  
Vitaly TITAEV ◽  
Dmitry PASKHIN
Keyword(s):  
Reinforced Concrete ◽  
Research And Development ◽  
Spatial Structures ◽  
Widespread Application ◽  
Shell Elements ◽  
Large Span ◽  
Thin Walled ◽  
Technological Methods

In construction, thin-walled reinforced concrete spatial structures are used both for unique roofs of large-span buildings and for mass buildings of the pavilion type and small architectural forms. The most serious obstacle to the widespread application of economical thin-walled reinforced concrete structures is the shortcomings of the technology used for the manufacture and installation of prefabricated shell elements. The method of bending just formed flat flexible plates to give them a curved shape is one of the most promising technological methods that allow you to abandon the use of expensive metal forms of complex curved outlines, significantly simplify all production processes. The article describes the experience of research and development of structural decisions for spatial structures of building roofs with the use of unified rhombic elements made by the method of bending a flat just formed sheet on a flexible formwork.

Static Load Test and Analysis on Completed Deck Arch Bridge of Large-Span Reinforced Concrete

2012 ◽  
Vol 490-495 ◽  
pp. 3444-3448
Author(s):  
Peng Wang ◽  
Dan Lv ◽  
Guo Qiang Liu
Keyword(s):  
Reinforced Concrete ◽  
Load Capacity ◽  
Load Test ◽  
Static Load Test ◽  
Test Technique ◽  
Arch Bridge ◽  
Large Span ◽  
Finite Element Software ◽  
Bridge Model ◽  
Working Performance

Based on the requirements of load test technique on existing long-span concrete bridge, a deck arch bridge of large-span reinforced concrete was taken as the engineering background and the emulation analysis was done by building the bridge model using the finite element software Midas/Civil. The values of stress and deflection were measured and calculated. The results of the test show that the static working performance of the arch bridge is fine, the stiffness and load capacity meet the requirements of the design and the construction quality is good. It can provide references for the bridge design of the same type, learning about the actual working condition of the bridge and evaluating the working performance and load capacity of the bridge structure in the serviceability limit states.

Strengthening Of Cast-In-Situ Long-Span Reinforced Concrete Roofs Using Pre-Stressed Wire-Rope Reinforcement

2019 ◽  
pp. 26-30
Keyword(s):  
Reinforced Concrete ◽  
Bearing Capacity ◽  
Wire Rope ◽  
Bending Moments ◽  
Traditional Methods ◽  
Large Span ◽  
Long Span ◽  
Preparatory Work

The article describes the strengthening of monolithic reinforced concrete coatings of the large-span roof of the sports hall of the school with elements with a curvilinear arrangement of pre-stressed wire-rope reinforcement. The use of pre-stressed wire-rope reinforcement as a reinforcement of reinforced concrete floors and coatings made it possible to simplify the production of reinforcement elements, reduce the time of installation work and eliminate the execution of preparatory work on opening. In the process of installation, the reinforcement elements fixed on the structures perceive the loads, pre-strengthening and increasing their bearing capacity both from the bending moments and from the shearing forces (punching) on the supports. As a result of the work carried out, the mass of the used structures was significantly reduced and the costs of construction and installation work were reduced compared to traditional methods of strengthening.

scholarly journals The e-SAFE energy and seismic renovation solutions for the European building stock: main features and requirements

2021 ◽  
Vol 2069 (1) ◽  
pp. 012224
Author(s):  
G Evola ◽  
G Margani ◽  
V Costanzo ◽  
C Tardo ◽  
E M Marino ◽  
...  
Keyword(s):  
Reinforced Concrete ◽  
Preliminary Analysis ◽  
Energy Performance ◽  
Building Envelope ◽  
European Countries ◽  
Building Stock ◽  
European Legislation ◽  
Heating And Cooling ◽  
Innovation Project ◽  
Indoor Spaces

Abstract In the framework of the ongoing four-year EU-funded innovation project called e-SAFE (“Energy and seismic affordable renovation solutions”), several solutions for the energy and seismic deep renovation of reinforced concrete (RC) framed buildings in the European countries are going to be developed and demonstrated. These solutions address both the energy performance of the building envelope and the heating and cooling of the indoor spaces, and aim to be prefabricated, customizable, low-disruptive and sustainable in order to boost the decarbonisation of the largely inefficient European building stock. This paper presents the main features of the e-SAFE solutions and the results of a preliminary analysis to verify their effectiveness and compliance with European legislation and standards. The outcomes will be useful for the design and demonstration stage, by identifying issues that need to be tackled.

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