El Sayed, A Y; Darwish, M and Nassar, K (2021) Design and constructability of novel extendable arched steel truss falsework. Journal of Construction Engineering and Management, 147(3): 04020187, ISSN 0733-9364
Abstract
Formwork is a very important component in the construction industry and can have major impacts on a project's budget. The process of selecting a suitable formwork system becomes very important in avoiding budget overruns due to choosing an unsuitable system for a project. Despite this importance, the developments for the formwork system are limited to adding accessories to the already existing systems. This was the case until the development of the funicular arch steel truss (FAST) falsework system, which introduced the concept of the funicular arch in developing a new formwork system. The FAST system had some drawbacks that were targeted during the development of the extendable arched steel truss (EAST) falsework system. The EAST system is proven to be more structurally sound than the FAST system and any of the currently commercially available formwork systems in terms of load capacity and satisfying the deflection criteria (span/360). The EAST system also provides higher lateral stability to the formwork system. To understand the advantages of the new EAST system, three case studies were carried out to compare the FAST system, EAST system, and commercially available system, known as the MULTIFLEX girder slab formwork. The results were compared in terms of weight, cost, and erection time. The results proved that the EAST system has a lower erection time than the FAST and the MULTIFLEX girder slab formwork, while it has a higher weight and consequently higher cost than the other two systems; however, it has higher structural soundness and safety factors.
| Item Type: | Article |
|---|---|
| Index terms: | falsework, construction industry, constructability, case study, formwork, budget overrun, safety factor, girder, stability |
| Subjects: | financial risk, structural engineering, construction integration, industry analysis, building construction, data collection methods, financial and cost management, construction methods |
| Topics: | Design Practice, Cost Management, Engineering Principles, Research Practice, Construction Technology |
| Descriptive scope: | 4 PCTE |
N.B. Descriptive scope is a count of how many of the five facets of empirical research are indicated by the words used in title, abstract and keywords. It is not intended as a judgement on the research; merely a count of the kind of word we would expect to indicate Phenomenon, Concepts, Theoretical framing, Empirical techniques, Analytical techniques. If all five are present, then a code of “5 PCTEA” will indicate this. If you feel the coding for this record is questionable, we welcome discussion around the terms we matched or the way we categorized them. The facet you would expect may not be coded, or a facet may be coded inappropriately. This can also bear on a larger question, of which facets should be treated as defining in construction management research. Please get in touch, and we will look at it. More details here