Bridge Construction Projects Research Articles

HOLTEKAMP JAYAPURA BRIDGE CONSTRUCTION PROJECT: THE ANALYSIS OF RAW MATERIAL SUPPLIERS’ SELECTION

The purpose of this study is to determine the priority of raw material suppliers in Holtekamp Jayapura bridge construction project. Data collection techniques include an interview and a questionnaire conducted with 3 (three) expert respondents using a comparison scale of 1-9. A total of 4 (four) criteria have been examined in this research, namely price, quality, shipping speed, and product capacity. This study included 8 (eight) alternative suppliers. The method applied was the Analysis Hierarchy Process (AHP) using Expert Choice V.11 software. The results revealed that the price criteria ranked first, the quality criteria ranked second, the criteria for sending speed ranked third, and the weight and product capacity criteria ranked fourth. Accordingly, Agung M, Sultan, SKB, Youtefa, Bumi Infrastruktur, Bintang M, Simpama Dwi, and Rajawali rank highest among raw material suppliers in the order of 1-8. Thus, it is indicated that Agung M, Sultan, and SKB are the 3 (three) best suppliers that the company should choose.

Common Problems and Maintenance Management of Highway Bridges

China is currently undergoing rapid urbanization, and highway and bridge construction projects are increasing in both quantity and scope. They are one of the important infrastructures in urban construction. The requirements for the construction of bridge engineering projects are relatively high, but due to the influence of various factors, problems are bound to occur, which affects the aesthetics and functionality of the bridge. Therefore, it is necessary to strengthen the analysis of common problems of highway bridges, understand the causes, and put forward corresponding countermeasures.

A hybrid SEM-ANN model for predicting overall rework impact on the performance of bridge construction projects

Determining the factors that cause rework in bridge is necessary to assess the impact of rework on a cost, which have been increasing in recent times. This research aims to evaluate the impact of rework on cost. In contrast to prior rework research, which focused heavily on structural equation modelling (SEM) analysis; this study uses a hybrid learning analytic approach based on the acceptance of a hybrid approach where the outputs of the second-order structural equation model are used as inputs to the artificial neural network, which derived from deep learning. Through the means of a questionnaire survey, 260 experts have participated in the study. The findings indicated that all rework factors have significant positive impacts on cost. There were 33 reasons for rework that affect the project performance. Using Delphi technology, these variables were reduced to 27. The final SEM model adapts 21 factors across five groups for reworking reasons. Wherein, the initial model RMSEA was 0.071, it became 0.057 in the final SEM model. The proposed hybrid model supports the relevance of the construction process-related factors in reducing rework on the bridge project. In comparison to the predicted value of the rework calculated by the hybrid model, the error rate was within 10 %. In practise, the findings will allow decision-makers and practitioners on construction sites to determine which aspects should be prioritised above others and design their policies appropriately. Methodologically, this study determines the deep ANN architecture's capabilities in finding non-linear correlations among the elements in the theoretical model.

Analysis of the performance level of megaprojects in Cameroon: the case of the second Wouri bridge construction project

De nombreuses organisations et praticiens de la gestion de projet se concentrent sur la performance du projet. Ces dernières années, le Cameroun s'est lancé dans d'importants projets de construction qui pourraient potentiellement être considérés comme des mégaprojets, comme la construction du deuxième pont sur le fleuve Wouri. L'objectif général de cette étude était d'analyser le niveau de performance du deuxième projet de construction de pont sur le fleuve Wouri. Cette recherche a été développée à partir d'une approche qualitative et quantitative. Cette recherche a choisi l'entretien semi-directif à travers un questionnaire et la recherche documentaire comme instruments de collecte de données. Les participants étaient constitués d'un représentant du maître d'ouvrage, d'un représentant du maître d'ouvrage, d'un représentant du chef de service maîtrise d'ouvrage, d'un représentant de l'ingénieur maître d'ouvrage, un représentant de l'assistant à maîtrise d'ouvrage, et deux représentants de l'entreprise réalisant les travaux. Les données recueillies ont été analysées à l'aide du logiciel d'analyse de données Statistical Package for the Social Sciences (SPSS) et du logiciel EXCEL. Les résultats montrent que les délais et les coûts d'exécution n'ont pas été respectés mais que le niveau de qualité initialement prévu a été respecté. Les résultats de cette recherche sont similaires aux conclusions d'OPS (2011), du groupe Standish (2018) et de PMI (2015) concernant la recherche sur la performance des projets qui a un pourcentage élevé d'échec dans les mégaprojets. Les résultats montrent que les délais et les coûts d'exécution n'ont pas été respectés mais que le niveau de qualité initialement prévu a été respecté. Les résultats de cette recherche sont similaires aux conclusions d'OPS (2011), du groupe Standish (2018) et de PMI (2015) concernant la recherche sur la performance des projets qui a un pourcentage élevé d'échec dans les mégaprojets. Les résultats montrent que les délais et les coûts d'exécution n'ont pas été respectés mais que le niveau de qualité initialement prévu a été respecté. Les résultats de cette recherche sont similaires aux conclusions d'OPS (2011), du groupe Standish (2018) et de PMI (2015) concernant la recherche sur la performance des projets qui a un pourcentage élevé d'échec dans les mégaprojets.

Project performance evaluation with earned value management approach using the integrated method of data envelopment analysis and Malmquist productivity index (Case study: bridge construction projects of Shiraz Municipality)

Project performance evaluation with earned value management approach using the integrated method of data envelopment analysis and Malmquist productivity index (Case study: bridge construction projects of Shiraz Municipality)

Integrated Carbon Emissions and Carbon Costs for Bridge Construction Projects Using Carbon Trading and Tax Systems—Taking Beijing as an Example

Bridges are special infrastructures that emit large amounts of carbon dioxide from construction. Attention should be given to the carbon cost generated by the bridge, which includes its direct economic cost; the carbon cost is the largest driving force encouraging the enterprise to implement carbon emission reduction measures. In this study, the life cycle assessment (LCA) method is applied to carbon emissions in the bridge construction stage, which include emissions from material production, transportation and on-site construction; then, a carbon emission calculation model for the construction stage is established. Next, the carbon cost calculation model for the bridge in the construction stage is determined by combining the carbon pricing mechanisms of carbon emission taxing and trading to monetize carbon emissions. Finally, by taking a bridge in Beijing as an example, the carbon emissions in the bridge construction stage are calculated, and the carbon cost is calculated. The results show that carbon emission monetization is beneficial for clarifying the environmental impact of bridge construction; these calculations should be included in cost accounting.

SCAN-VS-BIM FOR REAL-TIME PROGRESS MONITORING OF BRIDGE CONSTRUCTION PROJECT

Abstract. New transport infrastructure construction can stimulate the growth of economy as well as improving the public citizen welfare. However, with the rising number of mega infrastructure projects, the low project performance, such as project delay and cost escalation, are challenging the traditional Architecture, Engineering, and Construction (AEC) industry. Traditional Construction progress monitoring methods rely on manual data collecting and paperwork reporting which can be labor-intensive, time-consuming and error-prone. Therefore, it is necessary for the involved stakeholders to introduce advanced technologies which facilitates assessing the construction performance automatically and ensures the projects to be delivered on time. The application of building information modeling (BIM) provides involved parties an accurate understandable single source of truth that can improve the interoperability of project information. Nevertheless, current ‘Scan-to-BIM’ workflow cannot support the demand for real-time data analysis and status reporting. This paper presents a semi-automatic construction progress monitoring framework that evaluating the project performance of the infrastructure in real-time. It introduces Hausdorff distance which transmits the 3-D geometrical information contained by as-built point cloud to virtual point cloud directly, to avoid the drawbacks of space partitioning algorithms. The Poisson surface reconstruction utilizing volume as criterion to improve the robustness of progress determination. In addition, the application of 2D polygon fitting provides a potentially feasible method to identify the installation of pre-cast components of the bridge construction. The results indicate that the proposed framework can effectively monitor the geometric increment of road bridge construction project.

Evaluation of Quality Management System of Bridge Development Project Actors

This study is the result of a rehearsal to find the factors that are the main reasons for the delay in the completion of the Sei Wampu Bridge project, Empus Village Project, Bahorok Regency and look for various alternatives to overcome them. By knowing these factors, it is hoped that the company can obtain guidelines for working on subsequent projects so that delays and quality deficiencies can be avoided. The author in this study used a qualitative approach with descriptive delivery. This study uses a descriptive type of research using qualitative methods. Descriptive research is a type of research that describes the actual situation based on data in the field. From the results of the analysis, it can be concluded that problems related to the completion of business achievements that cause not on time and quality are generally caused by 3 (three) factors, namely: the employer factor of the Bridge Construction Project Implementer, the field factor and the order variation factor

VDC management in the industrialization process using prefabricated reinforcement cages. Case Study: Ovalo Monitor Bridge

Reworks and delays in production processes are commonly found in construction projects associated with a low level of industrialization and a lack of design constructability. To promote industrialization, improve project constructability, and reduce the execution time, we implemented the Virtual Design and Construction (VDC) methodology. An industrialization strategy was established using a prefabricated reinforcement cages system (PRC) elements in an 870-meters bridge construction project in Lima, Peru. The objective was to improve the project buildability with high industrialization of the steel rebar works. We replaced the traditional on-site cutting and bending steel reinforcement processes with an industrial process that integrates construction management with the supply chain through Building Information Model (BIM). As a result, the level of industrialization of the PRC elements of the bridge substructure and superstructure reached 85% and 40%, respectively, aligned with a 16% execution time reduction of the project.

EVALUATION OF THE CONSTRUCTION SAFETY MANAGEMENT SYSTEM IMPLEMENTATION ON BRIDGE CONSTRUCTION PROJECTS (CASE STUDY: CONSTRUCTION OF THE NIBUNG BARU BRIDGE, BANGKA BELITUNG PROVINCE)

Construction work is an infrastructure development sector that has high complexity. Along with the acceleration of infrastructure development in Indonesia, construction safety needs more attention and risk control. One of the risk control efforts in construction work is the implementation of the Construction Safety Management System (CSMS). This study aimed to determine the level of implementation of the Construction Safety Management System conducted by construction service providers on the Nibung Baru Bridge construction project in accordance with the Regulation of the Ministry of Public Works and Public Housing Number 10 of 2021 concerning Guidelines for Construction Safety Management Systems (Peraturan Menteri Pekerjaan Umum dan Perumahan Rakyat Republik Indonesia Nomor 10 Tahun 2021 tentang Pedoman Sistem Manajemen Keselamatan Konstruksi). This study used an audit method for the implementation of Construction Safety Management System with a checklist on 5 (five) Construction Safety Management System elements and sub-elements as well as interviews with the project K3 person in charge. The assessment and evaluation conducted by reviewing the implementation of each element of the Construction Safety Management System which was assessed from the Construction Safety Plan document of the service provider, the implementation of construction safety in the field, and the documents of the service provider related to the CSMS. Based on the results of the assessment, it is known that the implementation of the CSMS conducted by the service provider in the project was in the good category with a conformity score of 65%, but there are still some implementations of the subelements that are not in accordance with the applicable regulations.

Evaluation of E-Ticketing Technology in Construction of Highway Projects: A Systematic Review of Adoption Levels, Benefits, Limitations and Strategies

Highway and bridge construction projects are subject to cost and schedule overruns, as well as workforce shortages in remote locations, both of which can result in disputes over the quality of the end product. E-ticketing technology can improve the quality, however, while decreasing cost overruns and schedule delays. Despite the benefits of E-ticketing, many state departments and agencies are unwilling to transition into this technology. This study aims to identify the potential barriers to implementing E-ticketing, determine the adoption rate of state agencies/departments, and evaluate the benefits of employing an E-ticketing platform. The changes in technological trends in highway construction that are related to material tracking, inspection, and digitization are qualitatively analyzed, using meta-synthesis and interpretative analytical techniques. Key technologies that have the potential to be integrated into the E-ticketing platform to mitigate the limitations faced at the time of implementation are also discussed. The study’s findings suggest that the implementation process and regulations of an E-ticketing platform vary drastically from state to state, and a common set of guidelines is essential for obtaining long term success. The study advocates four key recommendations for widespread implementation of the E-ticketing platform and suggests directions for further research. The results of this study will assist DOT’s decision-makers and engineers in developing a common E-ticketing platform, adopting policies and guidelines, decreasing the costs of their projects, providing the initial investment, running pilot tests, enhancing the safety of their inspectors, and completing their projects in a timely and efficient manner.

Decision-Making Problems in Construction Projects Executed under the Principles of Sustainable Development—Bridge Construction Case

The high environmental impact of bridge construction causes numerous dilemmas in decision making related to the choice of the best material and technological solutions and their consequences in subsequent phases. These decisions adopt from the management condition the successful investment in this type of project. A bridge construction project includes consecutive stages: design, construction, operation/maintenance, and decommissioning. The latter usually involves the demolition of the infrastructure, generating elements that cannot be reused. This waste-generating linear production process must be urgently replaced by closed-loop production, framed within the Circular Economy (CE) philosophy that provides a practical response to the challenges related to sustainable development goals (SDGs). This document performs an analysis of case studies in an attempt to sort out the management challenges related to the construction, operation and decommissioning of bridges. The research is based on a questionnaire carried out among civil engineering project managers and explores the possibility of adapting the principles of the Circular Economy in bridge construction projects, especially in the context of the traceability of construction materials used for the construction.

Dampak Pembangunan Jembatan Sei Alalak Terhadap Kondisi Kegiatan Ekonomi Pedagang di Sekitar Proyek

This research was conducted to find out (1) What is the economic condition of the merchant community before the Sei Alalak Bridge construction project, (2) What is the economic impact of the merchant community during the Sei Alalak Bridge construction project, (3) What is the expectation of the merchant community for the economic conditions after the Sei Alalak Bride construction project.The method used is descriptive. Types and sources of data are primary and secondary. Primary data was obtained through interviews using questionnaires and secondary data obtained from literature study data sources and the Office of the Regional Development Planning Board Batola. Based on the study results, an analysis of the impact before the construction of the Sei Alalak Bridge on the economic condition can be seen from the number of works owned by traders are also in good condition where traders have a workforce of 1-4 people. It can also be seen from the number of buyers where in a day can get more than 150 buyers; the also can be seen from the merchant’s income where the highest is more than Rp 1.500.000 as many as 42 people and the lowest is less than Rp 500.000 as many as 11 people. On the impact when the construction of the Bridge has also declined the economic situation can be seen from the distribution channel of goods sometimes hampered, in terms of the number of workers also decreased to 1-3 people, then the buyers also dropped dramatically because 68% of traders only got buyers less than 50 people. There is a decrease in income for some traders at the time of the project, while in terms of expenditure is enough to make traders overwhelmed because they have to provide for their families and send their children to school, and the average expenditure on food is more than Rp 1.000.000, for the average cost of education more than Rp 500.000. The most impacting was the income of traders, a decrease in trader income, where the highest income of more than Rp 1.500.000 was reduced to 29 people, and the lowest income of less than Rp 500.000 increased to 17 people. From the economic condition of the merchant community around the project at Alalak Kayu Tangi Ujung to recover, as before the construction of the project and even expect economic conditions around the Sei Alalak Bridge to increase so that the traders can feel the positive impact of the development.

Exploration on the Role of Refined Management in Road and Bridge Construction Project Management

Exploration on the Role of Refined Management in Road and Bridge Construction Project Management

Analysis of Measurement and Cost Management of Road and Bridge Construction Projects

Analysis of Measurement and Cost Management of Road and Bridge Construction Projects

Developing a Preliminary Engineering Cost Estimation Method for a Portfolio of Bridge Construction Projects in Project Planning Phase

For state departments of transportation (DOTs), estimating preliminary engineering (PE) costs over a multiple-year horizon is critical for proper planning of engineering resources and budgets to ensure timely delivery of a portfolio of bridge construction projects, which incur PE costs that are relatively higher than those required for other highway project types. However, given the uncertainties in the planning phase, it is challenging to estimate PE costs effectively and efficiently. The purpose of this study was to provide DOTs with a PE cost estimation method using different ratios of PE cost to construction cost for bridge projects by project type and size. To that end, the study tested the variability of PE costs by analyzing 628 Texas DOT bridge construction projects divided into three project types: bridge maintenance (BMN), bridge replacement (BR), and bridge widening and rehabilitation (BWR). The analysis found that the ratios of PE cost to construction cost for the BMN and BR project types were significantly different by project size, but was not conclusive for the BWR project type because of limited sample size. The validation results indicate that the proposed method is effective for planning and estimating the PE costs of a portfolio of projects. The study findings can provide DOTs with an improved PE cost estimation process for a portfolio of bridge projects during the project planning phase.

Analysis and Design of Composite Single Span Psc-I Girder Bridge Using Midas Civil

With the ever-increasing sophistication of the population and the usage of vehicles, the number of modern road and bridge construction projects in India is increasing. To facilitate traffic flow, composite bridges are increasingly being implemented on a wide scale for highway building. In addition, new technology and equipment were gradually applied to road and bridge building. But, at the same time, there are several flaws in the structures due to the high technical requirements of bridge building, particularly the composite type of sections. The paper discusses the analysis and design of the Composite Single Span PSC-I Girder Bridge under IRC loadings using MIDAS. The analysis was carried out to get various outputs such as bending moment, shear force, and time-dependent characteristics like creep and shrinkage. At the construction stage, the PSC (prestressed) design of the span is carried out according to IRC standards to get output parameters such as principal stresses for prestressing tendon. The design involves calculation of the section properties, primary and secondary moments, magnitude and location of the prestressing force, profile of the tendons, losses due to prestressing and shear stresses on the section. The structure is designed in accordance with IRC guidelines.

Research on Project Management System of Prefabricated Bridge of Jinzhai Road Viaduct South Extension in Hefei Based on Cloud Platform

In the context of the continuous economic growth of the country, engineering project investment and construction are now transforming from rough to lean. It is urgent to optimize information technology, standardize project management mode, and improve project efficiency. At the same time, the integration of industrialization and informatization requires a deep combination, and the engineering field can exploit the pain points of project management, build an intelligent construction system, and drive the lean construction and management of engineering projects by data, on the one hand promoting the transformation and upgrading of the engineering industry to achieve smart and green sustainable development goals and on the other hand exploring smart city construction with engineering thinking to promote the healthy operation of cities. Taking the south extension of viaduct of Jinzhai Road in Hefei as an example, this paper combines BIM, Internet of Things, and other technologies to build a cloud platform-based prefabricated bridge project management system and promotes the promotion role of cloud computing, Internet of Things, BIM, and other information technologies on prefabricated bridge construction projects.

Research on Relevant Technology of Foundation Settlement in High-speed Railway Bridge Construction Project

Research on Relevant Technology of Foundation Settlement in High-speed Railway Bridge Construction Project

Evaluasi Keutuhan Borepile Metode Crosshole Sonic Logging (CSL) Pembangunan Jembatan Pulau Balang II

The problem that occurs in the Balang II Island Bridge construction project in East Kalimantan Province is the blockage of concrete flowing through the tremi pipe when casting the borepile foundation at sea. A considerable distance from the initial location of the tremi pipe (on land) to the endpoint of casting requires a fairly long tremi pipe. This blockage causes the concrete to flow imperfectly. There are many speculations about the cause of this problem, including leaks in the tremi pipe and the uniformity of the concrete mix. Based on these problems to prevent the failure of the foundation structure, an integrity test will be carried out on non-destructive piles. The integrity test to be carried out is in the form of a Crosshole Sonic Logging Test (CSL). The results of the CSL test on pylon P1 show that of the 17 borepile piles tested 2 piles have abnormalities, namely the P1-64 pile with the P/D category on the whole cross-section and the P1-52 P/F category on some sections (± 40%). Overall it can be concluded that the integrity of the drill pile on pylon P1 is still quite safe.