Modular construction methods in composite bridge construction – review and current developments for bridges with small and medium spans

2021 ◽  
Vol 14 (2) ◽  
pp. 94-94
Keyword(s):  
Modular Construction ◽  
Bridge Construction ◽  
Construction Methods ◽  
Composite Bridge

Bridge bearing solutions that facilitate quick and efficient bearing installation and bridge construction

2019 ◽  
Author(s):  
Simon Hoffmann ◽  
Amit Kutumbale ◽  
Danilo Della Ca'
Keyword(s):  
Load Distribution ◽  
Construction Method ◽  
Construction Process ◽  
Vital Function ◽  
Bridge Construction ◽  
Construction Methods ◽  
Efficient Construction ◽  
Critical Components ◽  
Bridge Bearing ◽  
Segmental Bridge

<p>A bridge’s bearings, arguably its most critical components, perform a vital function throughout the bridge’s service life, but the bearings used can also have a significant impact on the bridge construction process. Suitably designed adjustable bearings are an integral part of the incremental launch method of bridge construction, for instance, which can be a very efficient construction method. Adjustable bearings may also support other bridge construction methods, such as segmental bridge construction, where fixities/freedoms that applied during the construction phase require to be changed before the bridge enters service. Lifting bearings, the height of which can be increased, may enable a lack of precision in the structure to be tolerated, and measuring bearings may enable load distribution during bridge construction to be verified, where this is required by the construction method. Design features of otherwise standard bearings that support quick and high-quality installation can also contribute towards the efficiency of the overall bridge construction process, as can the use of bearing designs which minimize bearing size. Bearing solutions and features that facilitate bearing installation and bridge construction in ways such as these are described.</p>

Identification of Influencing Factors on CO2 Emission of Bridge Projects in Taiwan

2013 ◽  
Vol 405-408 ◽  
pp. 3482-3485
Author(s):  
Rong Yau Huang ◽  
Tsung Yi Tsai ◽  
Chao Hsiu Chen
Keyword(s):  
Influencing Factors ◽  
Construction Projects ◽  
Greenhouse Gas Mitigation ◽  
Bridge Construction ◽  
Global Issues ◽  
Public Projects ◽  
Construction Methods ◽  
Lower Structure ◽  
The Government ◽  
Save Energy

Greenhouse effect and greenhouse gas mitigation practices are becoming global issues in recent years. The government in Taiwan has also developed policy to reduce CO2 emission and save energy in construction of public projects. The objective of this research is to identify the influencing factors on the CO2 emission of bridge construction projects in Taiwan. Examples of those factors are the type of superstructure, the type of lower structure, the construction methods, the location of the project, and so on. The rules of Carbon footprint are used to calculate the CO2 emission of around 31 bridge construction projects in Taiwan. Results of the calculation of these case projects are then compared to each other for analysis to identify the influencing factors on the CO2 emission of bridge projects in Taiwan. Public owners and designers can refer to those identified factors for constructing bridges with lower CO2 emission. The goal of reducing CO2 emission in construction can be facilitated.

Gas Turbines for Coal-Fired Turbocharged PFBC Boiler Power Plants

1984 ◽  
Author(s):  
Richard Wenglarz ◽  
Steven Drenker
Keyword(s):  
High Pressure ◽  
Gas Turbines ◽  
Power Plants ◽  
Modular Construction ◽  
Fluidized Bed Combustion ◽  
Gas Temperature ◽  
Utility Industry ◽  
Advantages And Disadvantages ◽  
Construction Methods ◽  
Standard Gas

A coal-fired turbocharged boiler using fluidized bed combustion at high pressure would be more compact than a pulverized coal fired boiler. The smaller boiler size could permit the utility industry to adopt efficient modular construction methods now widely used in other industries. A commercial turbocharger of the capacity needed to run a 250 MWe power plant doe not exist; commercial gas turbines of the correct capacity exist, but they are not matched to this cycle’s gas temperature of less than 538°C (1000°F). In order to avoid impeding the development of the technology, it will probably be desirable to use existing machines to the maximum extent possible. This paper explores the advantages and disadvantages of applying either standard gas turbines or modified standard gas turbines to the turbocharged boiler.

Research on the Automatic Walking-Type Launching System Applied in Jiubao Bridge Construction

2012 ◽  
Vol 538-541 ◽  
pp. 3299-3303
Author(s):  
Hong Zhang ◽  
Yong Tao Zhang ◽  
Ren Zhong Zhou
Keyword(s):  
Structural Stress ◽  
Bridge Construction ◽  
Long Span ◽  
Long Span Bridge ◽  
Safety And Reliability ◽  
Composite Bridge ◽  
Complex Structural ◽  
First Time ◽  
At Home

In Long-span bridge construction by incremental launching method, due to its quiet heavy launching weight, long cantilever and complex structural stress. The dragging-type launching equipment commonly used at present no longer applies. Based on Jiubao bridge project, a new launching system of Automatic Walking-type Launching System (AWLS) was developed. This AWLS is a self-balancing launching system that integrates with functions of lifting, pushing and rectifying. It features highly automation, safety and reliability in operation. By using this system, Jiubao Bridge was successfully erected by incremental launching method for the first time as a three-span beam-arch composite bridge at home and abroad.

Sustainable Construction Technology Based on Building Modules

2014 ◽  
Vol 1041 ◽  
pp. 231-234 ◽  
Author(s):  
Mária Kozlovská ◽  
Pavol Kaleja ◽  
Zuzana Struková
Keyword(s):  
Traditional Method ◽  
Sustainable Construction ◽  
Construction Technology ◽  
Modular Construction ◽  
Construction Methods ◽  
House Construction ◽  
Traditional Construction ◽  
Family House ◽  
Bearing Structure

The aim of the paper is to demonstrate the widely presented benefits of modular construction as compared with traditional construction method. A case study of family house construction by modular building method and traditional method is used to examine the structural, economic and time indicators of individual construction methods. The results are presented in tabular and graphical outputs and are compared each other in regard to different technological parts of the building. The paper provides the comparison of economic and time indicators resulting from budgets and time schedules of construction that are executed for different variants. Such comparison demonstrates exactly the benefits of modular construction. The building based on building modules consisted of steel bearing structure and enveloped by sandwich panels is adopted as the selected modular construction technology. The different variant, applied for comparison of modular and traditional construction, is represented by the building with comparable thermo-technical characteristics, constructed by traditional masonry method.

Sign in / Sign up

Export Citation Format

Share Document