This research proposes a Genetic Algorithm based decision support model that provides decision makers with a quantitative basis for multi-criteria decision making related to construction scheduling. In an attempt to overcome the drawbacks of similar efforts, the proposed multi-objective optimization model provides insight into construction scheduling problems. In order to generate optimal solutions in terms of the three important criteria which are project duration, cost, and variation in resource use, a new data structure is proposed to define a solution to the problem and a general Niched Pareto Genetic Algorithm (NPGA) is modified to facilitate optimization procedure. The main features of the proposed Multi-Objective Genetic Algorithm (MOGA) are: A fitness sharing technique that maintains diversity of solutions. A non-dominated sorting method that assigns ranks to each individual solution in the population is beneficial to the tournament selection process. An external archive to prevent loss of optimal or near optimal solutions due to the random effect of genetic operators. A space normalization method to avoid scaling deficiencies. The developed optimization model was applied to two case studies. The results indicate that a wider range of solutions can be obtained by employing the new approach when compared to previous models. Greater area in the decision space is considered and tradeoffs between all the objectives are found. In addition, various resource use options are found and visualized. Most importantly, the creation of a simultaneous optimization model provides better insight into what is obtainable by each option. A limitation of this research is that schedules are created under the assumption of unlimited resource availability. Schedules created with this assumption in real world situations are often infeasible given that resources are commonly constrained and not readily available. As such, a discussion is provided regarding future research as to what data structure has to be developed in order to perform such scheduling under resource constraints.

The aim of the thesis is to solve selected parts of the construction technology project for the building of the multifunctional complex Rudiny II, Žilina - building block D. The content of the thesis is a technical report to the construction technology project, studies of the implementation of the main technological stages of the building. technological regulation for horizontal and vertical monolithic structures, quality control and testing plan for the production of vertical and horizontal monolithic structures, OSH plan. In the appendix of my diploma thesis I processed drawings of construction equipment, itemized budget of the building, object budget according to THU, time plan of construction, dimensions of construction machines, laying plan for system formwork on standardized floor of multifunctional house.

The subject of this thesis is the solution of building technology project poly-functional complex with a focus on execution of construction. Gross building is designed reinforced concrete skeleton combined with masonry. Technology will be developed Code for reinforced concrete monolithic frame and masonry. On the techno-logical stage it will be processed inspection and test plan and the balance of the major sources for the implementation of reinforced concrete structures 1.NP. The thesis is a proposal for construction site, which is complemented by a social facilities and offices. For an overall view of the construction of a multifunctional complex is processed time and financial plan, which will be further elaborated for building construction B. Availability of supply is verified by the design of routes. Like other task will be processed proposal formwork system for con-struction 1.NP Building B.

The thesis sets forth a proposal for possible solutions in the construction of the Pyramid of Cheops using current resources and 21st century technology. The management of the construction, basic regulations, contractual arrangements, and principles are described in the introduction. The body of the thesis gives a detailed description of the dimensions of the newly constructed pyramid and the types of technologies and materials that will be needed to realize the project. Financial costs, scheduling, and the progress of the construction will also form as an integral part of this thesis. The thesis will also concentrate on the equipment and all related follow up activities.

The subject of my thesis is to implement the gross carrying construction of the new bakery Karlovy pekarny in Židlochovice. In this paper dealt with the technical report, the situation of buildings, building equipment, budget, schedule, technological procedure of construction (bored piles and assembled skeleton), mechanical design and assembly KZP.

This thesis consists of a technological project of the production hall realization in Litomyšl. The main part of the project is a building schedule and a financial plan of the construction itself. Moreover thesis consists of a building site equipment design, construction machinery needed for building and a workplace safety plan. The process of selected realization parts are described in the technological manual and the quality control and inspection plan.

The diploma thesis deals with construction technological project of shopping centre Breda & Weinstein in Opava. The thesis handles technological prescriptions of cast-in-place reinforced concrete constructions and ventilated facade made of large format precast elements with graphical surface. There is machine assembly, design of site equipment, control and test plan and computation of time of formwork dismantle for the realization of reinforced concrete constructions. There is also time and financial plan, itemized budget with bill of quantities and construction schedule for earthwork, building foundations and cast-in-place constructions.

<p>  </p> <p>Available literature indicated that construction projects have been experiencing significant time overruns from their planned duration. In many cases, the primary reasons for project delays were ineffective planning and scheduling methods, poor communication and collaboration between the key stakeholders, and the construction operations and task requirements have been overlooked.</p> <p>Construction project planning and scheduling are extensively studied topics, and several techniques have been developed to solve construction project scheduling problems. Traditional production planning and scheduling techniques are based on the push planning strategy, such as linear and network scheduling techniques. In the traditional method, the project scheduler calculates activity durations and then sequences them to determine when to complete the work. These techniques and planning methods have been criticized for lacking collaboration between project workers and realistic integration of the project time, location, and other essential resources to create a reliable work schedule. Furthermore, the inability to account for site operations, tasks, and workflow leads to waste and delay. </p> <p>Consequently, Ballard and Howell (1990) proposed the last planner system, and then Ballard et al. (2000) further developed the method. In the last planner system, all key stakeholders and the project management team actively communicate and coordinate to accomplish the project’s planned milestones. The last planner system and pull planning scheduling objective is improving workflow and increasing plan reliability. However, the pull planning scheduling method has some limitations. For instance, this method cannot be used to determine the available work capacity in each working space and show how much work can be completed at a given time. In addition, the pull planning and LPS system are highly descriptive and experienced-based, relying on the decision and experiences of the site supervisors. </p> <p>Available literature concerning construction project delay also indicated that ineffective planning and scheduling, slow decision-making, and poor communication and coordination had been the top critical causes of construction project delay.</p> <p>Therefore, this research was conducted to minimize construction project time and cost overrun due to poor scheduling and production planning. The study has been conducted in two main parts. In the first part of this study, critical causes of project delay have been analyzed, and the contribution of poor planning and scheduling to construction project delays in different environments has been assessed. The relative importance index and Spearman’s coefficient techniques have been utilized to analyze the collected data.  The second section of this research work was conducted to investigate the construction scheduling reliability and production efficiency and developed the enhanced production planning and scheduling method to improve schedule reliability and production plan efficiency.  The reason for developing the enhanced production planning and scheduling method was to find the best work option to optimize work duration and efficiently plan required resources per category of the identified activities. In addition, this study has automated the scheduling input data capturing from the project BIM model by utilizing the developed visual program.</p> <p>The study finding in the first section indicated that the top ten critical causes of identified causes of project delay in specified environments were significantly different. However, Ineffective project planning and scheduling had been among the most critical causes in all three conditions. Ineffective planning and scheduling were ranked number one in developed environment conditions, second in developing countries, and fifth in high-risk environments.</p> <p>Study results in the second section have shown that the case study's executed schedule had experienced significant changes in the planned dates of individual tasks, project milestones, and resource allocation. The project schedule critical path and critical activities were changed repeatedly after each update, and the project structure work was delayed for 30 days from its initial plan, as illustrated in figures 33 to 35. Subsequently, the enhanced planning methodology has been applied in the selected case study to validate the developed method and evaluate the result of the case study. The case study implemented work plan has been compared with the enhanced planning-based developed schedule. The total duration of the enhanced planning-based method has been calculated to be 240 work days, which shows 30 days less time from implemented case study plan and 50 days from the project base plan in the construction document, as illustrated in figures 39 to 41. </p> <p>Furthermore, the production schedule sensitivity analysis has shown that the production schedule and the case study base plan tasks duration have not been significantly different since both schedules were created based on the similar size of the work crew, but in terms of the number of the planned task, the production schedule had been created based on the most suitable work option. Another advantage of the production schedule is that it is more reliable because the schedule is created for a shorter duration, not long before the project work starts, and it is created after multiple collaborations and assessment steps. In addition, the developed program in this study using Revit dynamo automated the extraction of input data from the BIM model to create the project schedule. </p> <p>In conclusion, based on the case study results, the enhanced production planning methodology and developed metrics and indices can be applied to various building construction projects to find the most suitable work option and create a reliable and resource-efficient work schedule. </p>

Известно, что любой строительный проект является успешным при условии своей экономической целесообразности на каждом из этапов своего жизненного цикла для этого должны быть налажены процессы автоматизации работы. Современные технологии информационного моделирования открывают новые возможности в оценке эффективности управления объектом. Рассмотрим возможности применения BIM-технологий для автоматизации процессов работы с цифровой информационной моделью (ЦИМ) на этапе подготовки и во время самого строительства, также этапы реализации методики мониторинга и контроля строительного производства на основе современных инновационных технологий и цифровой модели проекта здания. Данный подход позволяет решать улучшение экономических показателей, уменьшая при этом затраты и себестоимость, также возможность объедения данных и участников процесса строительства, сокращение сроков выполнения работ и снижение проектных рисков. Описание метода синхронизации задач календарного графика с элементами модели, а также способ сравнения плановых показателей строительного проекта и фактически выполненных работ. В качестве инструмента использованы программные продукты Autodesk и MS Project. / It is known that any construction project is successful, provided that it is economically feasible at each stage of its life cycle, for this, work automation processes must be established. Modern information modeling technologies open up new opportunities in evaluating the effectiveness of facility management. Consider the possibilities of using BIM technologies to automate the processes of working with a digital information model (DIM) at the stage of preparation and during the construction itself, as well as the stages of implementing a methodology for monitoring and controlling construction production based on modern innovative technologies and a digital model of a building project. This approach allows you to solve the improvement of economic indicators, while reducing costs and costs, as well as the possibility of combining data and participants in the construction process, reducing the time of work and reducing project risks. Description of the method for synchronizing schedule tasks with model elements, as well as a method for comparing the planned indicators of a construction project and the actual work performed. Autodesk and MS Project software products were used as a tool.

The aim of this work is to prepare the implementation of the reconstruction and extension of the Teaching hospital Brno Bohunice. Implementation of major technological stages is addressed in building technological study. Work includes selected legal procedures before the start of construction work, such as opening the envelopes and investor-supplier contract for the work. Further work solution contains selected technological processes of each sub-job phases, complemented by technological regulations, proposals for major construction machinery, selected inspection and test plans. As part of my work I will work with subcontractors to perform CFA piles, so I deal with on demand system for subcontractors, notice of award, issuing orders and delivery site for subcontractors. I believe that the subject of occupational health and safety on the jobsite is an important chapter construction and will therefore address the safety and health of people at work drawing up a plan OHS and OHS coordination meetings. Work will also be supplemented by information site equipment, time and financial plans and drawings of all the individual components specified in the Annexes. The content of my work is also a doctoral student competition entitled "Modern technologies and materials", where thoughts about the implementation superaseptických surgeries new technologies. This work will be the content of the text section of the attachments, always mentioned with the name of specialization.