Construction Engineering and Management Commons^™

Force Analysis Of Open Web Triangular Area Of Ganxi Super Bridge During Construction, Sun Keqiang, Li Baifu, Xue Qilin

Journal of China & Foreign Highway

Ganxi Super Bridge is an open web continuous rigid frame bridge with a main span of 300 m，and the upper chord box girder in the open web triangular area adopts the post support of a few telescopic columns with the hanging basket for suspension casting.The lower chord box girder adopts the full cable-stayed buckle method with a hanging basket for suspension casting.To analyze the force characteristics of the temporary structural system in the triangular area during the construction process using this method，the force variation law during the construction process of the temporary structural system in the triangular area was summarized …

Value Of Effective Length Coefficient Of Pier Of Long‑Span Continuous Rigid Frame Bridge, Tang Like, Song Suidi, Zhang Yang

Journal of China & Foreign Highway

The effective length coefficient of a pier is a controlling factor affecting the safety and economic index of bridge structures.The values of the effective length coefficient of compression members in Chinese and foreign codes are basically similar，and they are only applicable to ideal boundary conditions.In practical application，it is necessary to make appropriate adjustments according to the specific structural form.In order to get the value closer to the actual situation of the structure，this paper analyzed the overall stability of the structure and investigated the influence laws of different factors on the effective length coefficient of the continuous rigid frame bridge in …

Calculation Of Slag Weight In Shield Construction Based On Compound Continuous Belt Conveyor, Zhou Biao, Ding Xiaobin, Sun Wenjian, Ren Xufeng

Journal of China & Foreign Highway

Based on the construction data of continuous belt conveyors in shield construction，this paper evaluates two common calculation methods of slag weight （slag weight calculation based on loosening coefficient and slag weight calculation based on external additives ） to accurately manage slag in shield construction.According to the law of slag discharged from each ring in shield construction，an improved slag weight estimation method in shield construction was proposed.The results show that there is a big error in the slag weight calculation based on the loosening coefficient.When slag weight calculation based on external additives is used，the calculated value is always smaller than the …

Comparative Study On Dynamic Effect Of Basic Longitudinal Section Alignment, Du Yongping, Wang Peng

Journal of China & Foreign Highway

To improve the alignment in the old road reconstruction project，stress analysis was carried out，and the alignment and smoothness parameters were used as the major variables in the dynamic equation.A “human-vehicle-road ” dynamic analysis model was established，and alignment comparison groups were set，with only one group set with easing vertical curves.The Newmark- β method was used for programming and calculating the dynamic effects generated by the basic alignment with a radius of 7 000 m.The vibration indicators such as peak acceleration，root mean square of acceleration，vibration period，and frequency were used to analyze the dynamic effects of the basic alignment group.By analyzing the causes …

Mechanism Of Anti‑Collision Guardrails To Snow Drift Disasters On Highways, Peng Guodong, Xi Jianfeng, Zhang Siyuan, Li Min, Liu Ziwei, Xing Ruimin

Journal of China & Foreign Highway

With the continuous promotion of China ’s strategy of building the country with a strong transportation network，the proportion of high-grade highways in the road network continues to increase，and the number of traffic safety facilities is increasing.Xilingol League in the Inner Mongolia Autonomous Region has a long winter and strong wind，which is one of the typical areas in China deeply affected by snow drift disasters.Through field investigation，it is found that “road snow resistance ” “visual range obstacle ” and other snow drift disasters caused by traffic safety facilities are also increasingly prominent，which seriously restricts the effective play of road transportation functions …

Innovative Exploration For Green Construction Of Highway Bridges In Dense Urban Areas, Liu Xuexin, Zeng Lei, Meng Yuanying, Hao Guojun, Chen Yao

Journal of China & Foreign Highway

In order to improve the green construction level of highways in dense urban areas，the project characteristics and engineering requirements of the Nansha-Zhongshan Expressway were analyzed，and the concept of green development was implemented in the whole life cycle of highway design，construction，operation，maintenance，and management.The research and development of ten innovative technologies in four categories were highlighted，including industrial intelligent construction of highway bridges，comprehensive utilization of highway resources，environmental protection of highways in coastal wet areas，and integrated design of transportation and tourism in the Guangdong-Hong Kong-Marco Greater Bay Area.Among them，the prefabricated beam annular production line and non-standard eight-lane were the unprecedented technologies first used in the …

Comparison Of Chinese ， Ame Rican， And Bangladeshi Criteria For Liquefaction Judgment O F Fine‑Grained Soil, Wu Zi

Journal of China & Foreign Highway

The criteria for liquefaction judgment of fi ne-grained soil in current seismic design codes of China，the United States，and Bangladesh are quite different.In order to propose the judgment criteria for engineering application and Chinese code revision，this paper compared the judgment processes and criteria of the three countries.After analyzing the formation process，based on the application of the criteria for liquefaction judgment of 168 fine-grained soil samples collected in Dhaka，Bangladesh and surrounding cities，the rationality of each judgment process and criteria was evaluated comprehensively.Finally，a set of judgment processes and result criteria for fine-grained soil liquefaction integrating all criteria were put forward.

Bonding Performance Of Chip Seal Containing Waste Tire Rubber Particles, Chen Jianmin, Liu Donghai, Wang Jinyu, Liu Haozhi

Journal of China & Foreign Highway

In order to promote the reuse of waste tires and reduce environmental pollution，chips were replaced with the same volume of waste tire rubber particles to prepare a new rubber particle chip seal pavement.In order to ensure the bonding between asphalt and aggregate of the rubber particle chip seal，the surface of rubber particles was processed，and the texture characteristics of chip seal specimens with different aggregate particle sizes and rubber content were evaluated.The five indexes of rubber particle content，aggregate particle size ratio，shedding rate，structural depth，and pendulum friction coefficient were correlated and evaluated by SPSS，and the MMLS 3 test was conducted to simulate the …

Reality Capture Technologies For Continuous Inline Quality Monitoring In Construction 3d Printing, Michael J. Martin Ii

LSU Master's Theses

Extrusion-based construction 3D printing (C3DP) is an innovative and emerging technology aiming at the modernization of the construction industry. It uses robots and computer control to reduce the need for human labor and to decrease construction time and cost. C3DP creates elements layer by layer without using formworks, and it is critical to detect layer defects and deformations to ensure that each layer is printed with the desired dimensions. These defects can lead to a variety of issues during or after the construction process, including the collapse of freshly printed elements. In order to detect such deformations and to enable …

3d Printing Of Local New Mexican Soil Material: Improving Durability Properties By Assessing Traditional Methods Towards Alternative Sustainable Construction, Daiquiri Devon Zozaya

Civil Engineering ETDs

3D printing (3DP), or additive manufacturing, represents a dynamic and swiftly advancing manufacturing method in which diverse materials are deposited layer by layer through computer-controlled processes, creating intricate geometries. This technology has demonstrated success in various construction applications, including the construction of bridges, bus stop stations, and even residential homes. Nonetheless, the predominant application of 3DP in construction relies heavily on cement due to its robustness, convenience, and ease of use. Regrettably, the cement sector is a substantial source of greenhouse gas emissions, responsible for approximately 8% of worldwide CO₂ emissions. Investigating all facets of carbon emissions reduction is …

Engineered Cementitious Composites: The Good, The Bad, And The Possibilities, Michele M. Anderson, Michele M. Anderson

Civil Engineering ETDs

Construction materials require testing in the laboratory and field to be accepted as viable tools. Engineered cementitious composites (ECC) are a new material in the class of ultra-high-performance concrete studied and tested in the lab but not in the field. This research aimed to answer questions about ECC's ability to be a viable and cost-efficient construction material. The cost of ECC continues to be a factor in the acceptance of the material. Cost savings in construction and labor have not been identified until now, and it is good. Field condition testing of ECC in a desert climate known for extreme …

Factors Influencing Bridge Inspection In Developing Countries, Challenges And Future Directions: A Systematic Literature Review, Tuba Arshad, Dr. Rully Andhika Karim, Ayomi Dita Rarasati

Smart City

Bridges are very important to promote economic growth, mitigate poverty, and address persistent environmental issues. With the construction of new bridges, it is crucial to have an effective bridge inspection procedure. But most developing countries are still struggling in this field. This review examines common factors affecting bridge inspection in developing countries and their impact on bridge condition and performance while exploring strategies to improve those factors in developing countries in a systematic review. A total of 172 articles were identified through an explorative search of Direct Scopus, Google Scholar, and hand-search with limitations of the years 2013 to 2024. …

Development Of A Rule-Based Monitoring System For Autonomous Heavy Equipment Safety, Amirpooya Shirazi

Department of Construction Engineering and Management: Dissertations, Theses, and Student Research

Roadway construction work zones are constantly exposed to interactions among construction equipment, workers, and vehicles. Furthermore, ensuring safety in these areas is considered a challenging task due to the complexity of the environment. As shown in the rising trend of fatal accidents in roadway work zones, current OSHA regulations in construction safety are insufficient in effectively detecting unsafe situations and mitigating the risks. Furthermore, best practices, such as internal traffic control planning (ITCP), exhibit critical limitations requiring continuous monitoring of active work zones as well as adjustments to the site coordination plans due to the dynamic nature of work zone …

Building Sevices Engineering July/August 2024

Building Services Engineering

No abstract provided.

A Comparative Study Of Local And Global Construction Materials Sourcing Strategies For Road Projects In Nigeria, Araoye Olarinkoye Ajiboye, Micaiah Zhitsu Silas, Chinedu Chimdi Adindu, Elijah Aina Alhassan, Stephen Sunday Kolo

CSID Journal of Infrastructure Development

This study is a comparative analysis of local and global sourcing strategies to determine the impact of strategic material sourcing on road construction project performance. The study aimed to evaluate the effects of material-sourcing strategies on the performance of road construction companies in Nigeria. A mixed-methods approach was used, incorporating both qualitative and quantitative research. Data collection involved sampling techniques using structured questionnaires and oral interviews. Regression analysis evaluated the relationship between strategic material sourcing and road construction performance. The results revealed that 87.5% of the materials used by road construction companies in the study areas were sourced from the …

Appraising Critical Success Factors In Sustainable Housing Projects: A Comparative Study Of Ppp Modalities In Saudi Arabia, Ahmed Gouda Mohamed

Civil Engineering

This study examines the critical success factors (CSFs) crucial for the effective deployment of public-private partnership (PPP) models in sustainable housing projects in the Kingdom of Saudi Arabia (KSA), underpinning the nation's Vision 2030. Through a robust methodology that incorporates a profound literature review, structured interviews, and a survey involving key stakeholders, the study prioritizes fourteen significant CSFs integral to PPP efficacy. Employing Analytical Hierarchy Process analysis, key outcomes underscore the paramount importance of technical aspects with an emphasis on sustainability, tailoring risk-sharing and allocation to encompass green technologies and eco-friendly practices, and economic stability in the light of long-term …

Development Of Jetty Structure Design Procedures At The Schematic Design Stage With The Implementation Of Computational Design And Building Information Modelling To Improve Design Time Performance, Aidil Fitriansyah, Yusuf Latief

CSID Journal of Infrastructure Development

The construction sector faces persistent productivity challenges, significantly hindering the efficiency of design workflows. Computational Design (CD) and Building Information Modeling (BIM) offer potential solutions. CD enables the exploration of parametric design alternatives, while BIM enhances collaboration, visualization, and decision-making through comprehensive 3D models. This study aimed to investigate the processes and activities involved in the structural design of jetties during the schematic design phase using CD and BIM and to assess the impact of these activities on design time performance. A comprehensive analysis of secondary data was carried out, interviews were conducted with design experts, and quantitative analysis using …

Advancing Construction Practices: Innovations, Efficiency, And Safety In The Digital Era, Mohammed Ali Berawi, Perdana Miraj, Mustika Sari

CSID Journal of Infrastructure Development

In the ever-changing landscape of the construction industry, digital tools and procedures are a cornerstone of architectural and engineering practices. Building Information Modeling (BIM) and other computational design methodologies transform how projects are imagined, planned, and executed. These tools improve design precision while allowing real-time collaboration across different teams. As a result, adopting digital approaches is no longer an option but rather a requirement for remaining competitive in the construction industry. These innovative approaches provide an in-depth understanding of project complexities, drive design optimization, and contribute to resource management efficiency.

Construction efficiency has also improved due to lean manufacturing processes …

The Role Of Stakeholder Involvement In Enhancing Safe Drinking Water Infrastructure: An Interpretative Structural Modeling Approach, Awlya Rahmanea, Ayomi Dita Rarasati

CSID Journal of Infrastructure Development

One of the primary goals listed in the Sustainable Development Goals (SDGs) is to “Achieve universal and equitable access to safe and affordable drinking water for all,” as stated in SDG 6.1. To obtain this goal, the Government of Indonesia has developed the 2020-2024 National Medium-Term Development Plan (RPJMN), which has set specific targets including achieving 100% access to decent drinking water, 15% access to safe drinking water, and establishing 10 million house connections. The Ministry of National Development Planning has established a goal of achieving 45% access to safe drinking water by 2030 as part of the SDGs. However, …

The Most Influential Factors On The Risk Cost Estimation Process Of Implementing Bim 5d In Quantity Take-Off For Green Retrofitting Of High-Rise Buildings, Febrianti Silviana Dewi, Yusuf Latief, Bernadette Detty Kussumardianadewi

CSID Journal of Infrastructure Development

Green retrofitting aims to guide buildings toward sustainable practices, reducing carbon emissions associated with building operations and construction. This study explores the application of Building Information Modeling (BIM) 5D Quantity Take-Off (QTO) to existing high-rise buildings, focusing on components that enhance the performance of environmentally friendly structures and project management. This research identifies the factors influencing the cost estimation process and examines the risks across various phases, activities, outputs, and utilization of BIM 5D in cost estimation. The study highlights the most influential factors in implementing green retrofitting for high-rise buildings using structured interviews, questionnaires, and expert validation. The analysis …