A Framework of Lift Virtual Prototyping (LVP) Approach for Crane Safety Planning (original) (raw)
Related papers
An Integrated Approach to the Development of Construction Site Crane Operations
Proceedings of the 5th International Symposium on Automation and Robotics in Construction (ISARC)
The following is a review of the current status and future plans of the research concerning tower crane operations, carried out by the Technical Research Centre of Finland (VTT). Firstly, an empirical time-motion study of crane operations on building sites is described. The results can be used for creating a crane selection guideline in a textual or knowledge based form and in crane automation ideas evaluation. Secondly, the current crane automation research results carried out by VTT are summarized and possible applications to a tower crane are characterized. Thirdly, some of the future activities in crane automation research in VTT are discussed. In those studies an integrated approach to crane automation problems will be applied, where development of the site's overall order, systematic construction management methods, knowledge or simulation based crane selection methods, adaptation of building components and crane automation will be gradually combined on the way to the long term goal: a highly automated building frame erection system.
Reducing Human Error in Crane and Hoist Operations
Between 1971 and 1985, crane accidents resulted in 37 fatalities and 26 injuries in the Gulf of Mexico [1], and occurred approximately once every year in the North Sea [2]. Over the last decade, major crane accidents in offshore environments resulted in multiple fatalities and incidents. For this reason, crane accidents continue to be a major focus and of industry concern. Despite the large progress made with crane technology and regulation (API 2C [Error! Reference source not found.] and 2D [4]), operators and workers remain exposed to risks due to inadequate consideration of human factors in design. This desk-based evaluation was conducted to address the human factors related to crane operations with a detailed focus on cabin display and control arrangements, identification of blind spots, safe lifting practices, and compliance with regulatory requirements. It was found that the one configuration of the two-lever controls recommended by API 2C was conducive to causing human error, and that a rearrangement of the labeling and color-coding could increase readability and legibility to the operator. A modification to this arrangement is recommended in order to further prevent accidents stemming from human error. In addition, the operator's field of view (FOV) or line of sight (LOS) was simulated using schematics, 3D models, and anthropometric data in order to identify blind spots during lifting and lowering activities. This strategy can be implemented in the preparation of lift plans which will subsequently facilitate adequate communication between the operator and flagman during blind lifts.
Simulation of mobile crane operations in 3D space
Proceedings Title: Proceedings of the 2012 Winter Simulation Conference (WSC), 2012
A 3D model allows users to visualize the construction process during a given period of the schedule. This paper presents a methodology to aid practitioners in preparing lift studies with crane selection, positioning, and lift optimization using a 3D space. The 3D visualization helps to identify collision free paths and optimize lifting activities based on optimal crane paths with cycle time and speed of each crane activity from simulation models in Simphony. The proposed methodology provides to help lifting engineering and project manager select the best possible crane. A case study-based approach is utilized to illustrate the proposed methodology. The case study involves construction of a four story, sixty-eight unit building for older adults in Westlock, AB, Canada. The 3D visualization model was provided for the construction team more than two months before the scheduled day of lifting, which assisted the contractor in selecting the optimum crane and successfully completing all lifts (thirty modules, 25 tons each) in just two working days.
The use of virtual prototyping to rehearse the sequence of construction work involving mobile cranes
2012
Purpose–Rehearsing practical site operations is without doubt one of the most effective methods for minimising planning mistakes, because of the learning that takes place during the rehearsal activity. However, real rehearsal is not a practical solution for on-site construction activities, as it not only involves a considerable amount of cost but can also have adverse environmental implications. One approach to overcoming this is by the use of virtual rehearsals.
A Heavy Lift Planning System for Crane Lifts
… ‐Aided Civil and …, 1997
This paper presents the work done toward developing a computerized heavy lift planning system (HELPS) for planning crane lifts. Initially, a survey of the industry was carried out to define the heavy lift planning process and identify the developments necessary to improve ...
Automation in Construction, 2007
Modeling workspace requirements related to mobile crane operations could minimize delays associated with spatial conflicts and hazards on construction sites. To identify spatial conflicts related to crane operations, project engineers need to model and reason about spatio-temporal behaviors of cranes and coordinate them within a dynamic construction environment across time. Current approaches for identifying equipmentrelated spatial conflicts are based on discrete-event simulation of dynamic equipment motion. The accuracy of spatial conflicts detected using such approaches can be error-prone since it depends on a rate of time increment for the simulation to be set by the user. This paper presents an approach for generating workspaces that encapsulate spaces occupied by mobile cranes moving during an operation. It also discusses an assessment of the effectiveness of the approach in identifying spatial conflicts between mobile cranes and building components.
2019
Many kinds of industrial projects involve the use of prefabricated modules built offsite, and installation on-site using mobile cranes. Due to their costly operation and safety concerns, utilization of such heavy lift mobile cranes requires a precise heavy lift planning. Traditional heavy lift path planning methods on congested industrial job sites are ineffective, time-consuming and non-precise in many cases, whereas computer-based simulation models and visualization can be a substantial improving tool. This paper provides a Virtual Reality (VR) environment in which the user can experience lifting process in an immerse virtual environment. Providing such a VR model not only facilitates planning for critical lifts (e.g. modules, heavy vessels), but also it provides a training environment to enhance safe climate prior to the actual lift. The developed VR model is implemented successfully on an actual construction site of a petrochemical plant on a modular basis in which heavy lift mo...
A framework for real-time pro-active safety assistance for mobile crane lifting operations
Automation in Construction, 2016
Despite many safety considerations addressed in lift pre-planning, the ability to provide real-time safety assistance to crane operators and to mitigate human errors during the lifting operation is missing. This research developed a framework for real-time pro-active safety assistance for mobile crane lifting operations. First, crane poses are reconstructed in real-time based on the critical motions of crane parts captured by a sensor system. Second, as-is lift site conditions are automatically modeled and updated based on point cloud data. Lastly, the risk of colliding the crane parts and lifted load into nearby obstructions is pro-actively analyzed and warnings are provided to the operator through a graphical user interface. A prototype system was developed based on the framework and deployed on a mobile crane. Field test results indicate that the system can accurately reconstruct crane motion in real-time and provide pro-active warnings that allow the operator to make timely decisions to mitigate the risk.
Rapid Prototyping of Overhead Crane Dynamics for Operation Use
2005
The paper is presenting modelling approach oriented to overhead travelling cranes dynamics for the needs of exploitation studies. The subject of the article comprises building and some selected exploitation studies on the overhead crane carried out on the model in virtual environment for the needs of evaluating the technical state of the device.
Development of a Construction Work Cell for Cooperative Lift Planning
iaarc.org
ABSTRACT: Cooperative crane lifts are considered as an alternative to specialized heavy crane lifts. However, in executing a cooperative crane lift, the precise coordination among the cranes is critical. This level of precision is better assured through automation of the lift ...