Journal: Engineering Heritage Journal (GWK)

In recent years, when building bridges across existing railways, in order to reduce the interference to the railway operation line during the construction process, parallel railways are often used to cast bridges and then rotate them. In this paper, combined with the engineering example of Zhaochuan Super Swivel Bridge on Beijing-Zhanghai High-speed Railway, the key and difficult points of the swivel bridge during construction are monitored, and compared with the computer simulation data, the static friction coefficient, dynamic friction coefficient and friction couple distance of the swivel system are obtained. Model each component of the bridge body, establish a safety monitoring and early warning method, system, storage medium, and early warning platform, and visually display the safety degree of components at different stages and locations by color discrimination.

East Flood Canal is a canal built to handle flooding in the city of Jakarta. In addition to the canal flow as the main element, there are also borders on the left and right of the canal as supporting elements of the Banjir Kanal Timur. The border area of the Banjir Kanal Timur has the potential to be used as a green open space or public open space that helps increase the functional, ecological and aesthetic value of the city. The objective of this study is to provide input to optimize the Banjir Kanal Timur border as a public open space while still prioritizing the hydrological and ecological functions
This research uses rationalistic and descriptive methods. Data was obtained through observation, interviews and theoretical data, established regulations. The research location was divided into several zones to facilitate analysis.
From the results of this study it was found that the boundaries of Banjir kanal Timur can be utilized as a shared public green open space. The existing condition of its land use is still not optimal, does not have adequate facilities and infrastructure as a public area with recreational activities.
Limitations of the study – From the results of this study it was found that the boundaries of the Banjir Kanal Timur can be mandated as a team or togetherness of public green spaces.
The definition of a community is a social group that shares an environment with each other. This research uses community theory in developing public green open spaces on the banks of the Banjir Kanal Timur through the concept of inclusive landscape design.

Lead Rubber Bearing (LRB) is a passive type of base isolation that can be used as a damper for earthquake vibrations on bridges and buildings. The components that make up the LRB are several layers of rubber laminated to steel plates to increase vertical rigidity. LRB is also reinforced with lead cores to dissipate earthquake energy that enters the bridge structure or buildings. This paper will explain the design and production of LRB and test the results of the analysis. In this design, the properties of the materials used in the LRB are explained, the function of each material, the relationship between the design and the need to absorb earthquake loads on bridge structures or buildings. It also explains the determination of elastomeric thickness and number of layers, size of insulator, elastomer thickness and number of layers, number of rubber layers, total height, vertical and horizontal stability checks. The production method is very important to get a quality LRB product. Production starts from material selection, vulcanization process and quality control. The research was carried out successfully by studying the literature and technical analysis by carrying out several simulations with various dimensions to get better performance. Several developments were made to get better LRB performance. The damping of structures without base isolation is generally +/- 5%. For the need for good performance against earthquake loads, the attenuation can be increased to 20–30%. This is very useful for reducing earthquake loads, when a decrease in building acceleration cannot be obtained in tall buildings with base isolation. Likewise with the dimensions of the lead core. This research is still limited to theoretical analysis and prototyping, because no experiments have been carried out in the laboratory or applied to a construction project

This paper examines groundwater potential zones with the help of remote sensing and GIS methods for controlling and investigating the geospatial data of each parameter. Because of several conditions such as rapid population growth, urbanization, industrialization and agricultural development, groundwater sources are under severe threat. Climate change plays an important role in the quality and quantity of groundwater potential. Unreliable exploitation, poor quality of surface water resources tend to increase the decline in groundwater levels. This study was conducted in the Abbay River Basin, where groundwater serves as the main source for agricultural purposes rather than surface water. Seven selected parameters—lineament density, precipitation, geology, drainage density, land use, slope and soil data—were collected, processed, resampled, projected and reclassified for hydrological analysis. For generation of groundwater zones, weightage was calculated using an analytical hierarchy method. The consistency ratio estimated for this study was 0.089, which was acceptable for further analysis. Based on the integration of all thematic layers and the generated groundwater potential zones, the map was reclassified into five different classes, namely very good, good, moderate, poor and very poor. The results of this study reveal that 1295.33 km2 of the study area can be considered very poor, 58,913.1 km2 is poor, 131,323 km2 is moderate, 18,557 km2 is good and 311.5 km2 is very good. Any groundwater management project performed in the better regions would offer the greatest value. A similar study would be valuable before planning any water resource development activity to save comprehensive field investigations.

Purpose – The purpose of this paper is to investigate the factors influencing the responsiveness of construction participants to building collapse in the Nigerian construction industry. There has been a general type of response to incessant menace of building collapse among construction participants which is, playing the blame game. This is worrisome considering its attendant psychological effect on the affected persons and cost implications to the industry at large. Design/methodology/approach – Literature review conducted identified forty-nine (49) factors that can influence the responsiveness of construction participants to building collapse, which were employed to design a questionnaire survey. Data collected were analysed using descriptive statistics, mean score, Kruskal–Wallis test of ANOVA and multivariate techniques such as factor analysis. Findings – The descriptive and empirical analysis showed disparity of ranking of the 49 factors among the groups studied. There was statistically significant difference (ρ < 0.05) in 35 representing 71.4% of the factors influencing the responsiveness of participants in the construction industry to building collapse while the remaining 28.6% was not significantly different. Therefore, irrespective of the individuality of response from each group of construction participants, they still demonstrated a reasonable level of agreement in their responses to the factors influencing the responsiveness. Among the significant factors based on the mean score rankings are quality of materials, availability of experienced professionals, adequate enforcement of building code, design and specifications changes, financial capability of clients and budget allocation for building projects. Through factor analysis, the study categorized the forty-nine factors influencing the responsiveness of participants in the construction industry into six general factors. The factors are: client related; project procurement related; economic management related; ethical values related; construction management related and policy management related. Practical implications – The investigation into the factors influencing the responsiveness of participants is with a view to mitigating continuous occurrences of building collapse in Lagos State, and Nigeria as a whole. This is a very useful information on the roles and duties of all construction professionals and other stakeholders in the construction industry. Also, stakeholders in the academia can carry out a review of the curriculum for tertiary institutions based on the information on factors influencing responsiveness of construction participants. Originality/value – The study was able to categorise all the forty-nine factors into six basic groups using the factor analysis, and this could be used to develop measures for mitigating occurrences of building collapse. hence, it has successfully provided insightful knowledge base regarding the basic factors influencing the responsiveness of participants in the construction industry to building collapse, especially in Lagos State, Nigeria.

Building growth technology is rapidly recognised at a global level as being a key aspect in the future of construction projects, although construction robotics and automation (CRA) has undergone any major reality deployment to date. Nevertheless, the latest, substantially sustainability requirement is potentially the necessary cause for the larger implementation of construction robotics and automation. There are nevertheless small attempts at the detailed investigation of the effect of using construction robotics and automation on the sustainability efficiency of buildings and construction, but structured advice for the building industry is lacking in this sense. The study in this paper represents the first step towards addressing by analysing and examining the construction robotics and automation techniques and innovations available and for the first time creating a coherent system of metrics for measuring the sustainability efficiency of construction robotics and automation usage in buildings. The ultimate objective of the study must therefore be the creation of a rigorous and consistent methodology for evaluating, within this framework, the feasibility of construction robotics and automation in the construction projects context.

Energy efficient building concerns to the structure and using the process that is environmental liable and material efficient all around a building lifecycle. The basic principle of this building to minimize the energy consumption for heating and cooling system. The paper investigates the thermal behavior of hemp fiber insulation in timber framed wall panels for which timber framed structures will be experimented. Steps to enhance the energy performance were applied to building structure, window area, window glazing, lightning, heating ventilation and air conditioning (HVAC) system. We were measured the U-values of timber walls, hemp fiber insulation and window glazing. Results showed that energy efficient building enjoy the benefits of saving 40-50% energy by reducing greenhouse gases emissions into atmosphere. We have discussed about the rating system of energy efficient building or green building. In this paper, information pertaining to building life cycle and detailed explanation regarding fundamentals of building energy will be provided.

The Success in the use of the Primavera P6 Software to schedule the project depends on the size of the project, the level of its complexity the time allocated for its execution and the requirements dictated by owner of the project……etc. The basic idea behind the proposed system is the use of software set up for this purpose in order to delineate start- finish time by applying Critical Path Method, the Primavera P6 Software for scheduling single constrained resource in projects. They may only of solutions start by scheduling and analyzing the resource time period by time period, and resource by resource when the amount of the resources available is exceeded the method of tasks is examined and rare resources are then allocated according is the levels of priority. A major position arises then: how to increase the time necessary for the completion of the project with the remaining minimum with due respect to the labor limitations. The answer lies in the application of the Primavera P6 Software which is used in practical situations, so as to avoid mathematical complications which are characteristics of perfect model methods. In order to achieve the best solution, activities are re- scheduled based on labor constraints according to various numerous bases. These were applied on a project for the construction of a small size Gas Station, classified under small construction projects which include 29 activities. The 3 stages of implementation were applied tested to the project mainly planning, scheduling and control. We obtained the desired results with an increase in the time allocated for the completion of the project with strictest minimum possible while respecting labor constraints.

The Minjibir-Wase dam was constructed along the drainage system from the Jakara stream and linked with Dambattan flow that channelled through the lowland of the Minjibir via the main tributaries which drained into Hadeja. The idea of the dam was initiated during the Abdu-Bako era for sustainable irrigation Agriculture. More than twenty thousand people are benefiting from the dam. To harness the water resources, a private tourist centre was established along the coastal region of the dam where different recreational facilities were put in place to attract foreign investment and for leisure. The method used is the application of Hydrological software ArcSWAT and ArcGIS to map and evaluate the area morphometric characteristics of the basin parameters examined includes the slope gradient, sub-basin length, width, density, flow accumulation and direction and depth of the Basin.

The establishments of the nexus between the underlying geology and engineering properties are fundamentals to the safe, economic and serviceable designs of civil engineering structures. Cone Penetration Test (CPT) and Electrical Resistivity Tomography (ERT) are critical tools in foundation parameterization especially within Quaternary sediments serving as foundation of engineering structures. Both techniques were used to obtained point data and lateral continuity of geologic units within Ikate Area of Lagos Metropolis for foundation parameterization. Measurements which comprising 4 profiles of 2D resistivity imaging using the Wenner electrode configuration; 1 borehole and 12 cone penetration tests (CPT) were taken with Pasi Terrameter, percussion rig and the 10.0 tons penetrometer respectively. The ERT results interpreted using Dipro software were presented in Pseudo-sections while the cone penetration test results analysed with Microsoft Excel were represented as resistance curves. Interpretation from the two methods integrated with the borehole results reveals the presence clay, peat and sand of varying properties. The uppermost layer consists of medium dense sand followed by clay/peat of very low resistivity (< 3.5 ohm-meter) covering about 6. 0 – 8.0m in depth and terminating in another layer of sand (8.0 – 15.0m). The last sandy layer with cone resistance range between 30 – 120kg/cm2 is considered a suitable layer upon which deep foundation may be founded. Shallow foundation capacity estimates at depths 0.2 – 4.0m derived from direct CPT data using three different computation techniques gives value range from 1.7 – 49.4kg/cm2, 0.7 – 15.2kg/cm2 and 0.4 – 12.6kg/cm2 respectively. Deep foundation for skyscrapers within the area are advised to be founded within the competent layer encountered beyond 10.m depth.