A case productivity model for automatic climbing system

Abstract

If you would like to write for this, or any other Emerald publication, then please use our Emerald for Authors service information about how to choose which publication to write for and submission guidelines are available for all. Please visit www.emeraldinsight.com/authors for more information. About Emerald www.emeraldinsight.comEmerald is a global publisher linking research and practice to the benefit of society. The company manages a portfolio of more than 290 journals and over 2,350 books and book series volumes, as well as providing an extensive range of online products and additional customer resources and services.Emerald is both COUNTER 4 and TRANSFER compliant. The organization is a partner of the Committee on Publication Ethics (COPE) and also works with Portico and the LOCKSS initiative for digital archive preservation. AbstractPurpose -Tight schedules in high-rise building construction force project managers to use the formwork even in a bad weather condition. Insufficient craning, which is typically the bottleneck in construction activities, and lack of space in confined sites make it hard to install the formwork on the ground. The Automatic Climbing System (ACS), a type of jump forms, solves these problems enabling the formwork to climb in various weather and height conditions. The aim of this paper is to discuss these issues. Design/methodology/approach -Current research focusses on the ACS, its application, and productivity assessment. Productivity and construction data are collected from a specialized company in such type of forms. A bracket productivity model has been developed to estimate floor construction cycle time and productivity. Findings -Results show that average productivity is four days/floor. The developed model is validated, which shows robust results 97.80 percent.Research limitations/implications -The implementation of the developed models are limited to only two projects. However, the developed models and framework is sound for future improvement. Practical implications -The developed methodology and model play essential roles in decisionmaking process. Originality/value -The developed methodology and model are beneficial to researchers, practitioners, and planners of construction projects. It provides practitioners with charts that assist in scheduling and managing resources for jump form application. In addition, it provides researchers with a floor cycle time model and framework of implementing jump forms to high-rise buildings.

Formwork System Selection Criteria for Building Construction Projects: A Structural Equation Modelling Approach

“…"Labour quality", "labour productivity", and "speed of construction" (i.e., performance indicators) are criteria that may be affected by the selected FWS. For instance, as some heavy components of the FWS require the use of hoisting equipment [91] and other lightweight or self-climbing FWSs may not [92], the "speed of construction" may be affected by the type of the FWS selected (i.e., FWS-FWF characteristics), especially in high-rise building construction. In addition, as some FWS require less labour force and less cycle time, such as "Table FWS" [93], labour productivity and speed of construction can be greatly improved by selecting the appropriate FWS.…”

Predicting the Posture of High-Rise Building Machines Based on Multivariate Time Series Neural Network Models

“…High-rise building machines (HBMs) are innovative self-elevating steel-structurebuilding machines designed for constructing super high-rise buildings [1][2][3][4]. They offer several advantages: high automation, enhanced safety, simplified construction organization, assured structural quality, and standardized processes [5][6][7].…”