Crane Assisted Construction Erection Processes

Crane Assisted Construction Erection Processes

電腦輔助吊裝作業

Crane Assisted Construction Erection Processes

電腦輔助吊裝作業

Related references

1. S. C. Kang, H. L. Chi and E. Miranda, "Three-Dimensional Simulation and Visualization of Crane Assisted Construction Erection Processes," Journal of Computing in Civil Engineering, vol. 23, pp. 363-371, 2009.

Crane Assisted Construction Erection Processes 電腦輔助吊裝作業 本研究開發一個3D動畫系統，主要模擬吊車吊裝作業流程，並提供 詳細規劃與即時虛擬環境模擬協助吊車操作員操作。在系統中，吊 車必須轉換為機器人狀態，其運動過程的所有轉角都是藉由吊起物 所需吊起路徑計算而來。吊裝過程的路徑與順序是以獲得最小施工 時間與避免碰撞為目標計算，並藉由物理引擎與動畫模擬吊車吊裝 過程的物理現象，例如晃動、震動等，動畫模擬包括鋼構、預鑄混 凝土吊裝作業，塔吊與其他種類吊車也有進行模擬。本系統對於電 腦輔助建築吊裝作業有相當大的進步。

Model of a tower crane

Crane Assisted Construction Erection Processes

A system for three-dimensional simulation and animation of erection processes is presented.

The system is aimed at providing detailed planning and visualization in a virtual construction environment as well as for assisting crane operators in real-time during erection. In the system, construction cranes are modeled and treated as robots in which the motion required for each degree of freedom of the crane is computed as a function of the path to be followed by each component being erected. The sequence and path of each component are computed such that construction times are minimized and collisions with previously erected components are avoided. A physics-based simulation and animation of crane motions was also developed to visualize vibrations induced by crane motion. A special emphasis is placed on crane maneuvering required for containing motion-induced vibrations at acceptable levels and for increasing safety at job sites. Examples of the erection of steel and precast reinforced concrete buildings using tower cranes and crawler cranes are included. The system is a signiďŹ cant step forward in computer-assisted construction erection, for both prior to and during construction.

Suspension model

Crane Assisted Construction Erection Processes Pictures and illustrations of the column-lifting process

Snapshots of the visualization of lifting a precast concrete column

Snapshots of the visualization of column erection

Shih-Chung Jessy Kang sckang@ntu.edu.tw sckang.caece.net