Architecture Engineering and Construction (AEC) Industry is continuously moving forward onto innovation. Freshly, Builidng Information Modeling (BIM) has promoted revolutionary changes and challenges. It has already proved great results, especially regarding efficiency of design stages, but its adoption during the construction phase is yet underestimated and in need of proper analysis. Accidentally enough, it occurs the execution process is remarkably mismanaged, bringing forth budget and deadline deviances in most of the situations. Indeed, the construction process can deeply affect the final product quality and its conformity to Client’s requirements. As a matter of fact, both Clients and Contractors get damaged, financially and in terms of renown. Finally yet importantly, Contractors usually feel the urge to compel speedups on the cheap, and that brings about threats to workers safety. Taking executive operations in hand and steadily monitoring works advancement is the key for quality assurance; this holds in itself the success of Construction Management. The demand for a proper tool to guarantee more efficiency during construction operations and to quicken control activities in comparison to actual standards is extremely dear to Site Managers and General Contractors. Nevertheless, the two parties involved would pursue different aims, and consequently they’d sharpen different methodologies. Site Managers need to estimate works advancement and verify if quantities produced are in line with the contractual baseline encompassing quality, costs and time. On the contrary, Contractors prioritize the monitoring of on-site productivity in order to maximize profits and to guarantee the performance success. The aim of this research is to investigate to what extent BIM technology can be exploited to assess progressive advancements of works, and how a LOD E - based 5D BIM model can be integrated with layout planning and safety issues. On the basis of their own experience, authors here present a workflow to oversee collected data inside BIM models. First, a set of 5D parameters is defined to enhance information exchange between the parties and to carry out control operations. Secondly, the focus frames on the needs for implementation of the BIM model to direct its potentialities into planning optimization. Going through application on a case study, the method provides significant results in improving automation of monitoring operations. Reports informing about work progress are provided as draft for SAL (Building Progress Reports) documentation. Simultaneously, a methodological and systematic approach is proposed to optimize on-site productivity and to link BIM and work plans.
Il settore delle costruzioni è un campo in continua evoluzione e negli ultimi anni ha subito grandi trasformazioni grazie all’adozione della tecnica del Building Information Modeling. La sua adozione ha già dimostrato un innalzamento del livello di efficienza in fase progettuale, ma restano da quantificare i benefici deducibili da un suo utilizzo in fase esecutiva. Per contro, questa è spesso gestita in modo inefficiente, nonostante sia proprio l’esito dei processi costruttivi a definire il livello di qualità del prodotto finale, e la sua conformità rispetto ai requisiti attesi. Ne conseguono danni sia per la Committenza che per l’impresa, in termini finanziari e di prestigio. Non da ultimo, l’improvvisa accelerazione dei lavori per recuperare ritardi o ridurre i costi assoggetta i lavoratori ad elevati rischi per la salute e la sicurezza. È evidente l’importanza assunta dalle operazioni di controllo dell’avanzamento lavori. L’individuazione di uno strumento che renda la fase esecutiva più efficiente e semplifichi i metodi di controllo e monitoraggio rispetto a quelli attuali è un’esigenza molto sentita sia dalla Direzione Lavori che dall’impresa Affidataria, ma si declina differentemente: finalità della prima è esperire una stima dello stato di avanzamento dei lavori che le permetta di attuare un controllo su qualità, tempi e costi; la seconda invece ha interesse a monitorare la propria capacità di impresa ed affinare la probabilità di successo della propria programmazione dei lavori. Lo scopo della ricerca è indagare come la tecnica BIM possa essere utilizzata per valutare l’avanzamento dei lavori, e come un modello (LOD E) contenente informazioni finalizzate al Construction Management possa e debba integrarsi con gli aspetti di pianificazione operativa e di sicurezza. Dall’esperienza di monitoraggio condotta, gli autori presentano un flusso di lavoro e gestione in BIM dei dati. La ricerca si focalizza dapprima sulla definizione di opportuni parametri 5D condivisi da tutti gli attori coinvolti, ed affronta in seguito la necessità di implementare il modello per gestire la programmazione delle risorse in modo ottimale della. Dall’applicazione del metodo al caso studio, è emerso come l’utilizzo di un modello BIM e delle nuove App possa elevare il grado di automazione delle operazioni di controllo e monitoraggio. I risultati ottenuti sono dei report dei lavori bisettimanali su cui basare la redazione dei SAL nell’ottica della Direzione dei Lavori, e parallelamente è stato definito un approccio sistematico e metodologico al monitoraggio e all’ottimizzazione della produzione d’impresa, che lega la programmazione dei lavori al modello BIM.
Sull'applicazione del BIM per la stima degli stati avanzamento lavori e l'analisi della produzione
ZOIA, GIOVANNA;CAVALLI PONTIROLI, SVEVA LUCREZIA
2015/2016
Abstract
Architecture Engineering and Construction (AEC) Industry is continuously moving forward onto innovation. Freshly, Builidng Information Modeling (BIM) has promoted revolutionary changes and challenges. It has already proved great results, especially regarding efficiency of design stages, but its adoption during the construction phase is yet underestimated and in need of proper analysis. Accidentally enough, it occurs the execution process is remarkably mismanaged, bringing forth budget and deadline deviances in most of the situations. Indeed, the construction process can deeply affect the final product quality and its conformity to Client’s requirements. As a matter of fact, both Clients and Contractors get damaged, financially and in terms of renown. Finally yet importantly, Contractors usually feel the urge to compel speedups on the cheap, and that brings about threats to workers safety. Taking executive operations in hand and steadily monitoring works advancement is the key for quality assurance; this holds in itself the success of Construction Management. The demand for a proper tool to guarantee more efficiency during construction operations and to quicken control activities in comparison to actual standards is extremely dear to Site Managers and General Contractors. Nevertheless, the two parties involved would pursue different aims, and consequently they’d sharpen different methodologies. Site Managers need to estimate works advancement and verify if quantities produced are in line with the contractual baseline encompassing quality, costs and time. On the contrary, Contractors prioritize the monitoring of on-site productivity in order to maximize profits and to guarantee the performance success. The aim of this research is to investigate to what extent BIM technology can be exploited to assess progressive advancements of works, and how a LOD E - based 5D BIM model can be integrated with layout planning and safety issues. On the basis of their own experience, authors here present a workflow to oversee collected data inside BIM models. First, a set of 5D parameters is defined to enhance information exchange between the parties and to carry out control operations. Secondly, the focus frames on the needs for implementation of the BIM model to direct its potentialities into planning optimization. Going through application on a case study, the method provides significant results in improving automation of monitoring operations. Reports informing about work progress are provided as draft for SAL (Building Progress Reports) documentation. Simultaneously, a methodological and systematic approach is proposed to optimize on-site productivity and to link BIM and work plans.| File | Dimensione | Formato | |
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https://hdl.handle.net/10589/124181