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

Kaveh, A.; Vazirinia, Yasin

doi:10.3311/ppci.11816

Cited by 14 publications

(12 citation statements)

References 24 publications

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“…Therefore, the effect of the outrigger position on seismic demand is determined to find the optimal position. Different optimization methods can be used in solving engineering problems [57][58][59][60][61][62][63].…”

Section: Dynamic Analysismentioning

confidence: 99%

Optimal Location of Energy Dissipation Outrigger in High-rise Building Considering Nonlinear Soil-structure Interaction Effects

Tavakoli¹,

Kamgar

Rahgozar

2020

Period. Polytech. Civil Eng.

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Buckling-restrained braces (BRBs) emerged to improve the seismic performance of high-rise structures as compared to the ordinary diagonal bracing. In this paper, the seismic performance of braced buildings with the BRB outrigger system is investigated to determine the optimal configuration of BRB outrigger, considering the nonlinear SSI effect. For this purpose, the nonlinear dynamic analysis is carried out on four braced buildings with a BRB outrigger system placed on three different soil types. The outrigger configuration changes from first to the top story to capture the seismic performance of different locations of BRB outrigger. It is observed that the outrigger location affects the seismic performance, which is measured in terms of inter-story drift ratio, story displacement, story shear, and energy dissipation capacity. The results are compared to the fixed base condition buildings, which proves considering SSI, shifts the optimal location to the upper story of the structure. Moreover, the effect of soil’s stiffness on the seismic responses of structures and the optimal BRB outrigger location is investigated. Finally, the merits of BRB outrigger are shown by comparing its seismic performance that of the conventional outrigger, under frequent, basic, and rare earthquakes. The results show that the optimal locations of different 2-D buildings rested on the dense soil, medium soil, and soft clay are obtained at 0.6, 0.65, and 0.7 of the building’s height (H), respectively. Also, the results show that the optimum location of the BRB outrigger system based on the energy dissipation criteria is 0.45H to 0.65H.

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Section: Dynamic Analysismentioning

confidence: 99%

Optimal Location of Energy Dissipation Outrigger in High-rise Building Considering Nonlinear Soil-structure Interaction Effects

Tavakoli¹,

Kamgar

Rahgozar

2020

Period. Polytech. Civil Eng.

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“…During the last few decades, researchers have been obsessed with finding the best method to address problems related to the Construction Engineering Optimization Problems (CEOPs) [14]. Since the main function of tower cranes are for transporting bulky construction materials [15], and also material transportation is a complex activity during the building construction process; thus, hoisting and lifting bulky materials needs meticulous planning [16]. As a result, during the last twenty years, TCLP is applied as a method to find out the best possible location for supply points and tower cranes within a building construction site to enable to meet minimum time objectives efficiently and effectively.…”

Section: Tower Crane Selection and Layout Problemmentioning

confidence: 99%

“…In the process of proper tower crane selection and optimal layout of the tower crane and supply yard, the crane has to meet the capacity related constraints Eqs. (15) and (16). Whereby during the travel of materials from supply yard to the demand points the load moment across the jib must be less than the maximum load moment capacity (Eq.…”

Section: Capacity Constraintsmentioning

confidence: 99%

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An Upgraded Sine Cosine Algorithm for Tower Crane Selection and Layout Problem

Kaveh¹,

Vazirinia²

2020

Period. Polytech. Civil Eng.

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Tower crane is the core construction facility in the high-rise building construction sites. Proper selection and location of construction tower cranes not only can affect the expenses but also it can have impact on the material handling process of building construction. Tower crane selection and layout problem (TCSLP) is a type of construction site layout problem, which is considered as an NP-hard problem. In consequence, researchers have extensively used metaheuristics for their solution. The Sine Cosine Algorithm (SCA) is a newly developed metaheuristic which performs well for TCSLP, however, efficient use of this algorithm requires additional considerations. For this purpose, the present paper studies an upgraded sine cosine algorithm (USCA) that employs a harmony search based operator to improve the exploration and deal with variable constraints simultaneously and uses an archive to save the best solutions. Subsequently, the upgraded sine cosine algorithm is employed to optimize the locations to find the best tower crane layout. Several benchmark functions are studied to evaluate the performance of the USCA. A comparative study indicates that the USCA performs quite well in comparison to other recently developed metaheuristic algorithms.

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“…The use of Tower Crane (Kaveh & Vazirinia, 2018) for small cities in Indonesia with a project budget of under 10 billion rupiahs, is very inefficient, the costs of mobilization and demobilization are very high (Hartono et al, 2018). What's more the existence of the project in the regency cities located in small islands.…”

Section: Introductionmentioning

confidence: 99%

Productivity analysis and efficiency of concrete casting using mini-cranes with a capacity of 200 kg based on appropriate technology

Cim

Bahrun

Magribi

et al. 2020

rdlc

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The main objective of this study was to analyze the productivity and efficiency of concrete casting using a mini crane with a capacity of 200 kg as designed by the researcher, compared to using the manual method. The method used in this study is the assembly of mini cranes with a capacity of 200 kg, then field or work tests are carried out and accompanied by observations and subsequent data analysis. The results of the analysis are that using a mini-crane is more profitable compared to the manual method. The authenticity of this research is that mini-cranes are designed and made by researchers with style and models adapted to the conditions of small towns and inland areas in Indonesia, made based on Appropriate Technology not using imported materials and prioritizing scrap metal waste which is the authenticity of this research , thus our research has the principle of producing innovations and works that are useful for human life.

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

Cited by 14 publications

References 24 publications

Optimal Location of Energy Dissipation Outrigger in High-rise Building Considering Nonlinear Soil-structure Interaction Effects

Optimal Location of Energy Dissipation Outrigger in High-rise Building Considering Nonlinear Soil-structure Interaction Effects

An Upgraded Sine Cosine Algorithm for Tower Crane Selection and Layout Problem

Productivity analysis and efficiency of concrete casting using mini-cranes with a capacity of 200 kg based on appropriate technology

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