The traveling salesman puts-on a hard hat – Tower crane scheduling in construction projects

Development of high-level building construction projects that require complex equipment that can be used in high-level construction, equipment used to help complete construction projects called heavy equipment. One of the heavy equipment used in high-rise buildings is a tower crane. The use and layout of tower cranes can speed up the schedule and save on project costs. Therefore many methods have been developed to determine the tower crane layout. This study will discuss determining the location of tower cranes by discussing simulations. The location will be determined based on the site map data which is processed in the form of a geometric arrangement and tower crane data specifications. Location determination is done by comparing the total travel time of several simulated locations according to several different speed criteria in a construction project. Speed criteria are divided into four times the jib speed and trolley speed. Location of the location with the total travel time will be taken as the final result. Different speed criteria will make the total travel time change. ABSTRAKPerkembangan proyek pembangunan gedung bertingkat tinggi yang semakin kompleks menyebabkan diperlukannya peralatan yang dapat mempermudah pembangunan gedung bertingkat, peralatan yang digunakan untuk membantu menyelesaikan tugas konstruksi disebut alat berat. Salah satu peralatan berat yang digunakan pada gedung bertingkat tinggi adalah tower crane. Penggunaan dan tata letak tower crane yang baik dapat mempercepat jadwal dan menghemat biaya proyek. Oleh karena itu banyak dikembangkan metode-metode untuk menentukan tata letak tower crane. Penelitian ini akan membahas penetapan letak lokasi tower crane dengan pendekatan simulasi. Letak lokasi akan ditetapkan berdasarkan data site map yang diolah dalam bentuk geometric layout dan data spesifikasi tower crane. Penetapan lokasi dilakukan dengan cara membandingkan total travel time dari beberapa lokasi yang disimulasi sesuai dengan beberapa kriteria kecepatan yang berbeda-beda pada suatu proyek konstruksi. Kriteria kecepatan terbagi menjadi empat berdasarkan besarnya kecepatan jib dan kecepatan trolley. Letak lokasi dengan total travel time terkecil akan diambil sebagai hasil akhir. Kriteria-kriteria kecepatan yang berbeda disimulasi akan membuat total travel time berubah.

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Initial Analysis, Planning and Calculation of Vertical Delivery in High-rise Building Construction

Periodica Polytechnica Architecture ◽

10.3311/ppar.10833 ◽

2017 ◽

Vol 48 (2) ◽

pp. 87-92 ◽

Cited By ~ 1

Author(s):

Simo Suđić

Keyword(s):

Construction Projects ◽

Critical Path ◽

Vital Role ◽

Optimal Number ◽

Building Site ◽

Tower Crane ◽

Concrete Production ◽

General Contractors ◽

Time Calculation ◽

Major Factors

Tower crane plays a vital role in materials delivery in construction projects. General contractors often use technical and commercial quotes to calculate number of cranes and their engagement duration in project, and they often have to deal with commercial and time risks. The main reason for this approach is the lack of standardised methodologies for calculating tower cranes engagement. Identifying the optimal number of cranes, their location and duration of engagement at the building site are the major factors that can reduce the risks considering the time and cost by increasing productivity and thus decreasing the required time. Calculation will be based on different production parameters -space per worker, concrete production per crane or worker, lifting time. This paper presents a methodology for calculating the required number of cranes and their optimal positioning. Proposed model for crane engagement optimisation is developed using the Critical Path Method in Primavera P6 software.

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Information Representation Schema for Tower Crane Planning in Building Construction Projects

Computing in Civil Engineering 2015 ◽

10.1061/9780784479247.045 ◽

2015 ◽

Cited By ~ 1

Author(s):

Yuanshen Ji ◽

Fernanda Leite

Keyword(s):

Construction Projects ◽

Building Construction ◽

Information Representation ◽

Tower Crane

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Productivity of Column Casting Heavy Equipment in the Construction of 31 Sudirman Suites Makassar Apartment

Paulus Civil Engineering Journal ◽

10.52722/pcej.v3i3.280 ◽

2021 ◽

Vol 3 (3) ◽

pp. 10-20

Author(s):

Fedelia Randan ◽

Junus Mara ◽

Lintje Tammu Tangdialla

Keyword(s):

Construction Projects ◽

Material Transfer ◽

Work Time ◽

Tower Crane ◽

Heavy Equipment ◽

Equipment Construction ◽

Calculation Results ◽

Real Value ◽

Time Required ◽

Equipment Operator

In the world of heavy equipment construction projects it is important to help complete human work. Tower Crane is one of the tools in the implementation of construction projects. In the implementation of the construction of Apartment 31 Sudirman Suites Makassar, there are 2 Tower Crane tools that operate with limited work time due to covid 19. This research was carried out by direct observation in the field and calculating the real value of the specifications to compare productivity. Tower Crane productivity is the result achieved or output, namely the amount of material moved by Tower Crane with all resources or inputs, namely the time required for material transfer. Based on the calculation results that the productivity of the specification is greater than the productivity of observations in the field, this is due to constraints on the weather that occurs and the equipment operator. For productivity, the average obtained on the 4th floor is 71,544 (%) and on the 5th floor it is obtained that is 73,727 (%).

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Optimization of Tower Crane Location and Material Quantity Between Supply and Demand Points: A Comparative Study

Periodica Polytechnica Civil Engineering ◽

10.3311/ppci.11816 ◽

2018 ◽

Cited By ~ 2

Author(s):

Ali Kaveh ◽

Yasin Vazirinia

Keyword(s):

Construction Projects ◽

Heuristic Algorithms ◽

Optimization Problems ◽

Supply And Demand ◽

Location Optimization ◽

Tower Crane ◽

Colliding Bodies Optimization ◽

Enhanced Colliding Bodies Optimization ◽

Complex Optimization ◽

Material Transportation

Location optimization of tower crane as an expensive equipment in the construction projects has an important effect on material transportation costs. Due to the construction site conditions, there are several tower crane location optimization models. Appropriate location of tower cranes for material supply and engineering demands is a combinatorial optimization problem within the tower crane layout problem that is difficult to resolve. Meta-heuristics are popular and useful techniques to resolve complex optimization problems. In this paper, the performance of the Particle Swarm Optimization (PSO) and four newly developed meta-heuristic algorithms Colliding Bodies Optimization (CBO), Enhanced Colliding Bodies Optimization (ECBO), Vibrating Particles System (VPS), and Enhanced Vibrating Particles System (EVPS) are compared in terms of their effectiveness in resolving a practical Tower Crane Layout (TCL) problem. Results show that ECBO performs better than other three methods in both cases.

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Study on Automatic Arrangement Algorithm for Tower Cranes with Applying Lifting Limit Axis

Turkish Journal of Computer and Mathematics Education (TURCOMAT) ◽

10.17762/turcomat.v12i6.1855 ◽

2021 ◽

Vol 12 (6) ◽

pp. 418-426

Author(s):

Kyeong-Tae Jeong Et.al

Keyword(s):

Construction Projects ◽

Three Dimensional ◽

Minimum Cost ◽

Two Dimensions ◽

Three Dimensions ◽

Optimal Arrangement ◽

Efficient Operation ◽

Tower Crane ◽

Lifting Capacity ◽

Intersection Area

Recently construction projects are becoming more high-rise, and for this reason, efficient operation of tower crane is very important. Therefore, we conducted a study on the development of automatic arrangement algorithm for the efficient operation of tower crane. In this study, a new concept, the 'lifting limit axis' concept was applied to develop automatic arrangement (optimal arrangement) algorithm of tower crane. Through this process, the 'three-dimensional figure' was created and the research was carried out considering the weight of the material, the working radius of the tower crane, and the lifting capacity. In this study, we carried out the study in three dimensions to apply the concept of ‘lifting limit axis', which is different from the existing studies conducted in two dimensions. This is not simply a three-dimensional and two-dimensional difference. The reason for this is that the lifting work can be considered by applying the change in the lifting capacity according to the working radius of the tower crane in three dimensions. Therefore, it is a concept that enables highly efficient and stable lifting work. In this study, we developed an algorithm by applying this concept of 'lifting limit axis', which is divided into four steps. The first step is information input, the second step is identifying the intersection area where the tower crane can be arranged, the third step is to arrange the 'three-dimensional figure' and the last step is to select the minimum-cost simulation out of a number of simulation. This algorithm provides the basic guidelines for tower crane arrangement through the above process. In this study, we applied the new concept of 'lifting limit axis’. Therefore, continuous follow-up research is essential, and it is expected that this will lead to an efficient lifting plan of tower crane.

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