Tools for mobile crane selecting and locating

2011 ◽  
Vol 2 (1) ◽  
pp. 69-74 ◽  
Author(s):  
Z. Struková ◽  
M. Ištvánik
Keyword(s):  
Software Tool ◽  
Computer Applications ◽  
Technical Documentation ◽  
Construction Sites ◽  
Preparation Phase ◽  
Object Edge ◽  
Mobile Crane ◽  
Site Planning ◽  
Crane Selection ◽  
Definition Of

Abstract Definition of types, amount and positions of cranes in construction site planning has a big impact on the overall productivity and cost effectiveness of a construction project. It is not rare, that engineers during preparation phase of construction fault in crane selection. It implies big financial losses for the company because of wrong crane rent. In visualisation of mobile crane operation in 3D is noticeable that working radius of the crane is considerably less then number listed in crane technical documentation (capacity chart). The built construction itself can reduce the crane radius when the crane boom snags the built object edge. Several computer applications were developed in order to help practitioners in selecting and using of cranes. In the paper is presented one version of non-commercial software tool (Mobile Crane Simulator) useful in construction preparation as a tool for selecting and locating of the mobile crane at construction sites. The tool was developed by authours of the paper. The principles of the tool creation are also explained.

An algorithm for mobile crane selection and location on construction sites

2001 ◽  
Vol 1 (2) ◽  
pp. 91-105 ◽  
Author(s):  
M. Al-Hussein ◽  
S. Alkass ◽  
O. Moselhi
Keyword(s):  
Construction Sites ◽  
Mobile Crane ◽  
Crane Selection

An algorithm for mobile crane selection and location on construction sites

2001 ◽  
Vol 1 (2) ◽  
pp. 91-105 ◽  
Author(s):  
Mohamed Al‐Hussein ◽  
Sabah Alkass ◽  
Osama Moselhi
Keyword(s):  
Construction Sites ◽  
Mobile Crane ◽  
Crane Selection

UNIQUE DETERMINANTS OF CRANE SELECTION FOR MULTICRANE BUILDING CONSTRUCTION SITES

2015 ◽  
Vol 2 (1) ◽  
Author(s):  
Albert Ben-David ◽  
Aviad Shapira
Keyword(s):  
Building Construction ◽  
Construction Site ◽  
Construction Sites ◽  
Building Projects ◽  
Entire Area ◽  
Building Footprint ◽  
Mobile Crane ◽  
Selection For ◽  
Crane Selection ◽  
Share Information

Mega building projects typically employ numerous tower cranes covering the entire area of the building footprint and staging areas with multiple overlapping work envelopes. This paper aims to answer the following question: Are the determinants of crane selection for mega building projects similar to projects serviced by a small number of cranes? On-site interviews found: (1) the visibility of the crane forest in the surroundings of the project affects the approach to crane selection; (2) various modes of action are taken by project management to share information with the neighboring residents and business and to ease the hardships of living and working near a busy construction site; and (3) cranes are often selected and located such that they could dismantle other cranes, due to difficulties of using a dismantling mobile crane in the depth of the crane array.

scholarly journals GA-Based Optimization Method for Mobile Crane Repositioning Route Planning

2021 ◽  
Vol 11 (13) ◽  
pp. 6010
Author(s):  
Han-Seong Gwak ◽  
Hong-Chul Lee ◽  
Byoung-Yoon Choi ◽  
Yirong Mi
Keyword(s):  
Operating Time ◽  
Route Planning ◽  
Optimal Solution ◽  
Optimization Method ◽  
Computational Method ◽  
Test Cases ◽  
Construction Sites ◽  
Productivity Improvement ◽  
Planning Optimization ◽  
Mobile Crane

Mobile cranes have been used extensively as essential equipment at construction sites. The productivity improvement of the mobile crane affects the overall productivity of the construction project. Hence, various studies have been conducted regarding mobile crane operation planning. However, studies on solving RCP (the repositioning mobile crane problem) are insufficient. This article presents a mobile crane reposition route planning optimization method (RPOS) that minimizes the total operating time of mobile crane. It converts the construction site into a mathematical model, determines feasible locations of the mobile crane, and identifies near-global optimal solution (s) (i.e., the placement point sequences of mobile crane) by implementing genetic algorithm and dijkstra’s algorithm. The study is of value to practitioners because RPOS provides an easy-to-use computerized tool that reduces the lengthy computations relative to data processing and Genetic Algorithms (GAs). Test cases verify the validity of the computational method.

scholarly journals Determining the proximity of groups in social networks based on text analysis using big data

2019 ◽  
pp. 521-526
Author(s):  
A S Mukhin ◽  
I A Rytsarev ◽  
R A Paringer ◽  
A V Kupriyanov ◽  
D V Kirsh
Keyword(s):  
Social Networks ◽  
Big Data ◽  
Social Network ◽  
Data Collection ◽  
Text Analysis ◽  
Software Tool ◽  
Text Data ◽  
The Social ◽  
Information Research ◽  
Definition Of

The article is devoted to the definition of such groups in social networks. The object of the study was selected data social network Vk. Text data was collected, processed and analyzed. To solve the problem of obtaining the necessary information, research was conducted in the field of optimization of data collection of the social network Vk. A software tool that provides the collection and subsequent processing of the necessary data from the specified resources has been developed. The existing algorithms of text analysis, mainly of large volume, were investigated and applied.

Quantification Methods for Construction Waste Generation at Construction Sites: A Review

2010 ◽  
Vol 163-167 ◽  
pp. 4564-4569 ◽  
Author(s):  
Ahmad Firman Masudi ◽  
Che Rosmani Che Hassan ◽  
Noor Zalina Mahmood ◽  
Siti Nazziera Mokhtar ◽  
Nik Meriam Sulaiman
Keyword(s):  
Construction Projects ◽  
Software Tool ◽  
Waste Reduction ◽  
Building Construction ◽  
Civil Infrastructure ◽  
Waste Generation ◽  
Construction Sites ◽  
Construction Waste ◽  
Future Direction ◽  
User Friendly

Estimation of construction and demolition (C&D) waste amount is crucial for implementing waste minimization program. Estimation of C&D waste amount generated is a mean in assessing the potential for waste reduction. Thus, a better understanding of C&D waste generation in terms of causes and sources can be achieved. The aim of this paper is to conduct a review on available construction waste quantification methods from previous studies, which have been utilized in certain countries, while attempting to choose the most suitable and applicable method, and to direct future studies for better quantification methods. This review is applicable only for building construction projects and did not include civil/infrastructure, demolition, renovation, and excavation projects. Six quantification methods and/or waste audit tool available from literatures are discussed, which include their limitation and future direction for this study. It is believed that some combination of these quantification methods could make a good impact in accurate numerical estimation of construction waste amount generated in building construction projects. A strong and accurate database as presented by Soliz-Guzman, combined with effective, vital, and resourceful estimation suggested by Jalali’s Global Index (GI), also with the aid of user-friendly software tool like the SMARTAudit could provide an effective and reliable waste quantification.

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

2020 ◽  
Author(s):  
Ali Kaveh ◽  
Yasin Vazirinia
Keyword(s):  
Material Handling ◽  
Harmony Search ◽  
Building Construction ◽  
Construction Sites ◽  
Layout Problem ◽  
Tower Crane ◽  
Np Hard Problem ◽  
Sine Cosine Algorithm ◽  
Crane Selection ◽  
Construction Site Layout

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.

scholarly journals Lightweight Adaptation of Classifiers to Users and Contexts: Trends of the Emerging Domain

2015 ◽  
Vol 2015 ◽  
pp. 1-29 ◽  
Author(s):  
Elena Vildjiounaite ◽  
Georgy Gimel’farb ◽  
Vesa Kyllönen ◽  
Johannes Peltola
Keyword(s):  
Domain Knowledge ◽  
Computer Applications ◽  
Training Data ◽  
Design Time ◽  
Classifier Adaptation ◽  
Application Characteristics ◽  
Definition Of ◽  
Context Specific ◽  
Application Developers ◽  
Intelligent Computer

Intelligent computer applications need to adapt their behaviour to contexts and users, but conventional classifier adaptation methods require long data collection and/or training times. Therefore classifier adaptation is often performed as follows: at design time application developers define typical usage contexts and provide reasoning models for each of these contexts, and then at runtime an appropriate model is selected from available ones. Typically, definition of usage contexts and reasoning models heavily relies on domain knowledge. However, in practice many applications are used in so diverse situations that no developer can predict them all and collect for each situation adequate training and test databases. Such applications have to adapt to a new user or unknown context at runtime just from interaction with the user, preferably in fairlylightweightways, that is, requiring limited user effort to collect training data and limited time of performing the adaptation. This paper analyses adaptation trends in several emerging domains and outlines promising ideas, proposed for making multimodal classifiers user-specific and context-specific without significant user efforts, detailed domain knowledge, and/or complete retraining of the classifiers. Based on this analysis, this paper identifies important application characteristics and presents guidelines to consider these characteristics in adaptation design.

Wind Turbine Blade Structure Parameterization Using T4T

2014 ◽  
Author(s):  
Giorgos A. Strofylas ◽  
Georgios I. Mazanakis ◽  
Ioannis K. Nikolos
Keyword(s):  
Wind Turbine ◽  
Parametric Design ◽  
Turbine Blades ◽  
Design Procedure ◽  
Software Tool ◽  
Computational Procedure ◽  
Physical Parameters ◽  
Wind Turbine Blades ◽  
Definition Of ◽  
Cloud Of Points

A software tool named “T4T” (Tools for Turbomachinery) has been developed for the parametric design of turbomachinery and wind turbine blades. The complete design procedure is object-oriented and parametric, providing the ability to the user to define various types of blades. It has been developed in QT C++, utilizing OpenCascade graphical and computational libraries. The software allows the user to design the outer surface either by specifying some physical parameters for each blade section, or by directly interpolating a surface through a cloud of points. The new/enhanced version of “T4T” software tool, introducing the definition of internal blade structure for wind turbines rotors, is fully parametric and customizable, allowing the user for defining the internal blade structure, including shear webs. The computational procedure finally produces compound solids, which can be further imported to mesh generation and analysis software through standard geometry exchange protocols, for cooperation with CFD and CSD solvers.

scholarly journals Pedagogical technologies of machine translation skills forming on the example of bachelor students specializing in mechatronics and robotics at Don State Technical University

2021 ◽  
Vol 273 ◽  
pp. 12140
Author(s):  
Irina Gritsay ◽  
Liubov Vodyanitskaya
Keyword(s):  
Foreign Language ◽  
Machine Translation ◽  
Professional Training ◽  
Special Program ◽  
Technical Documentation ◽  
State Technical ◽  
Advantages And Disadvantages ◽  
Classroom Studies ◽  
Definition Of ◽  
And Robotics

In this paper the authors took into consideration professional training of specialists who can use technical documentation in a foreign language. The definition of machine translation, its value, main advantages and disadvantages were examined. This research showed the importance of machine translation and the need to train students of technical specialties in MT skills. The model of a special program for training students and its theoretical and practical parts were described. Based on the results of the error analysis, the error types were categorized into 3 categories. The results of the tests were analysed and shown in the tables. A significant decrease in the number of errors was noted. Based on the findings, pedagogical implications were discussed regarding how teachers can successfully and effectively incorporate MT into the classroom studies.

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