Fuzzy AHP approach for selecting the suitable bridge construction method

2008 ◽  
Vol 17 (8) ◽  
pp. 958-965 ◽  
Author(s):  
Nang-Fei Pan
Keyword(s):  
Fuzzy Ahp ◽  
Construction Method ◽  
Bridge Construction

scholarly journals Application of the Fuzzy AHP in Selection of Most Appropriate Construction Method for Tuti - Bahri Bridge

2014 ◽  
Vol 7 (1) ◽  
pp. 20
Author(s):  
Eltayeb Hassan Onsa ◽  
Hashim Mohamed Ahmed
Keyword(s):  
Construction Projects ◽  
Fuzzy Ahp ◽  
Construction Method ◽  
City Center ◽  
Bridge Construction ◽  
Quality Cost ◽  
Bridge Superstructure ◽  
Criteria Weights ◽  
Hierarchy Process ◽  
Selection Of

In presence of many kilometers of waterways and valleys in Khartoum State, bridges had become desperately needed for proper communication and development. There were many types of bridges in Sudan made of concrete and/or steel using various types of suspended, steel truss, arch and cable-stayed bridges which were constructed by different methods. The successes in bridge projects will be reached if the project achieved quality, cost saving and completed in optimum time schedule. Therefore, selecting appropriate bridge construction method is essential for the success of bridge construction projects. The Analytical Hierarchy Process (AHP) method has been widely used for solving multi-criteria decision-making problems. The Authors applied Fuzzy AHP, similar to the process suggested by Nang in 2008, to select the most appropriate construction method to be adopted for the Cable-stayed Tuti-Bahri Bridge Project which the Ministry of Infrastructures and Transportation of Khartoum State intends to construct at Khartoum city-center. The results were successfully applied for selection of the most appropriate bridge superstructure construction method among two methods. The hierarchy of the alternatives is suggested based on opinion of two Sudanese experts through questionnaires to obtain the basic criteria. Weights, from group of evaluations, are analyzed using excel spread sheets developed by the Authors. Applying Nang’s approach revealed logical procedure for selection of construction method that best suits Tuti-Bahri 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>

Research on the Application of Horizontal Rotation Construction Method with Flat Hinge in Cable-Stayed Bridge Construction

2011 ◽  
Vol 255-260 ◽  
pp. 856-860 ◽  
Author(s):  
Quan Sheng Sun ◽  
Xiao Guang Guo ◽  
De Ping Zhang ◽  
Xi Kun Guan ◽  
Yu Zheng
Keyword(s):  
Traffic Safety ◽  
Single Point ◽  
Construction Method ◽  
Bridge Construction ◽  
Engineering Construction ◽  
Cable Stayed Bridge ◽  
Design Idea ◽  
Symmetry Structure ◽  
Bearing System

Rotation construction method includes building the bridge parallel to the obstacle being spanned (a river, a highway or a railway) and then rotating the superstructure into place. The method can optimize bridge construction in terms of reducing impacts on traffic, safety, and overall project budget and duration. Therefore, the method became so popular that it has been used successfully in about one-hundred bridges in China. In this paper , taking the Suifenhe cable-stayed Bridge as project background, the design idea (single point with flat hinge) of bearing system has been brought forward. The successful rotation construction of Suifenhe cable-stayed Bridge proved the feasibility and technical advancement of the horizontal rotation construction method with flat hinge in similar engineering construction, especially the bridges with symmetry structure.

scholarly journals Analysis of Critical Barriers in Bridge Construction using Fuzzy AHP methodology

2021 ◽  
pp. 415-423
Author(s):  
Hemant K Upadhyay ◽  
Rahul Kumar Raj
Keyword(s):  
Fuzzy Ahp ◽  
Research Work ◽  
Review Of Literature ◽  
Bridge Site ◽  
Successful Completion ◽  
Bridge Construction ◽  
Ahp Method ◽  
The Road ◽  
Hierarchy Process ◽  
Pair Wise Comparison

A Bridge is a structure that spans horizontally the road, body of water or a valley. Bridge Construction may vary depending on the intended functioning of the bridge and nature of the that geographical region. Keeping in view the bridge site and various constraints, type of bridge and method of construction are to be selected carefully for successful completion of bridge construction. However, It has been realized that critical barriers in bridge construction need to be identified and evaluated. The intended purpose of the presented research work is to check the critical barriers in bridge construction. Six critical barriers in bridge construction have been shortlisted by carrying out extensive review of literature and categorized in to three categories: 'Climate factors', 'Engineering factors', 'Public problem factors' using experts’ inputs. Fuzzy Analytical Hierarchy Process (F-AHP) method is chosen to rank of critical barriers in bridge construction. All pair wise comparison matrices are fabricated on the basis of a survey with inputs from thirty civil engineers. The outcomes may be instrumental for the planning creators for designing influential strategies to deal with critical barriers in bridge construction.

Asymmetric Construction Technology of Partially Cable-Stayed Bridge with Single Tower and Single Cable Plane

2011 ◽  
Vol 255-260 ◽  
pp. 881-885
Author(s):  
Xiao Meng Sun ◽  
Zi Cai Yan ◽  
Da Yong Zhu ◽  
Hui Chen
Keyword(s):  
Structural Characteristics ◽  
Construction Method ◽  
Construction Technology ◽  
Bridge Construction ◽  
Cable Stayed Bridge ◽  
Surrounding Environment ◽  
Technical Features ◽  
Main Girder

According to the structural characteristics and the surrounding environment of partially cable-stayed bridge, an asymmetric construction method combinded with support cast-in-place and cantilever casting is applied for main girder construction, based on project of Yuyao cable-stayed bridge. Its basic idea is as follows: One deck section is concreted with brackets in advance, which to offer counterweight for basket construction symmetrically. The technical features and construction key point are described in detail, which provides reference for similar bridge construction.

scholarly journals Effect of the Superstructure Construction Method on the Cost and Duration of Bridge Projects in Sudan

2015 ◽  
Vol 11 (1) ◽  
pp. 357-375
Author(s):  
Eltayeb Hassan Onsa ◽  
Hashim Mohamed Ahmed
Keyword(s):  
Production Rate ◽  
Construction Method ◽  
Bridge Construction ◽  
Construction Time ◽  
Construction Methods ◽  
Steel Truss ◽  
The Cost ◽  
Cable Stayed Bridges

Sudan, being a wide country consisting of sixteen states, in which thousands of kilometers of waterways and valleys are extended, bridges had become desperately needed for proper communication and development. There were many types of bridges in Sudan made of concrete, steel, and composite sections showing various types of suspended, steel truss, arch, and cable-stayed bridges which were constructed by different methods.     This paper summarizes the data of main bridges in Sudan; it shows the construction duration, cost, and type of the superstructure and presents a comparison between bridges’ superstructure construction methods in terms of cost in US$ per m2 of the bridge plan area and production rate in m2/week. The paper also recommends the most favorable bridge construction methods that are expected to contribute better into saving cost and construction time.

Reasonable Elevation Calculation of Temporary Pier of Long-Span Steel Trussed Arch Bridges with Semi-Cantilever

2014 ◽  
Vol 501-504 ◽  
pp. 1318-1322
Author(s):  
Xu Luo ◽  
Lu Rong Cai
Keyword(s):  
Significant Influence ◽  
Construction Method ◽  
Bridge Construction ◽  
Arch Bridge ◽  
Long Span ◽  
Building Process ◽  
Steel Truss ◽  
Arch Bridges ◽  
Beam Bridge

When the scaffold construction method is applied on long-span steel trussed arch bridges, reasonable setting of the temporary pier elevation has significant influence on assembly linearis and safety assembly of long-span steel trussed arch bridges with semi-cantilever. In this paper, in accordance with the manufacturing linearis steel trussed beam bridge and steel truss beam linearis changing during building process, the calculation of temporary pier elevation was studied systematically, and practical function was deduced. Then, the method was applied to a long-span steel trussed arch bridge. The obtained result by in-situ assembly and dismantling presents that: 50 mm preserved method is considered in this paper, which can provide convenience for removing the temporary pier. At the same time, the rationality and reliability of the presented approach are verified. It also can provide reference for similar bridge construction.

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