TY - CONF TI - A lean-BIM operational traceable model for 5D cost-schedule integration in structural works C1 - Singapore, Singapore C3 - Proceedings of the 34th Annual Conference of the International Group for Lean Construction (IGLC 34) SP - 169 EP - 180 PY - 2026 DO - 10.24928/2026/0238 AU - Becerra, Gerardo AU - Ortega, Jesús AU - Sepúlveda, Italo AU - Barkokebas, Beda AU - Alarcón, Luis F. AD - Student Researcher, Universidad Autónoma de Chile, Santiago, Chile, gerardo.becerra@cloud.uautonoma.cl, orcid.org/0009-0005-1332-3014 AD - Academic, Departamento de Obras Civiles, Universidad Técnica Federico Santa María, Avenida España 1680, Valparaíso 2390123, Chile, jesus.ortegaf@usm.cl, orcid.org/0000-0002-1148-937X AD - PhD Candidate, Department Construction Engineering and Management, Pontificia Universidad Católica de Chile, Santiago, Chile. Professor, Faculty of Architecture, Construction and Environment, Universidad Autónoma de Chile, Santiago, Chile, ilsepulveda@uc.cl, orcid.org/0000-0002-6019-9344 AD - Assistant Professor, Department of Construction Engineering and Management, Pontificia Universidad Católica de Chile, Santiago, Chile, bbarkokebas@uc.cl, orcid.org/0000-0002-0054-1320 AD - Professor, Department of Construction Engineering and Management, Pontificia Universidad Católica de Chile, Santiago, Chile, lalarcon@uc.cl, orcid.org/0000-0002-9277-2272 ED - Hamzeh, Farook ED - Poshdar, Mani ED - Garcia-Lopez,, Nelly P. AB - The construction industry faces persistent challenges in cost control, schedule reliability, and data consistency, particularly during the structural phase of high-rise buildings. Although Building Information Modeling (BIM) offers the potential to integrate quantities, costs, and schedules, its operational application remains limited due to the lack of standardized modeling practices and weak alignment between digital models and conventional cost–schedule structures. This study addresses this gap by developing and validating an operational, model-centered integration method that embeds a common itemized structure directly within the BIM model to support consistent cost–schedule integration. The research adopts a quantitative, applied methodology comprising four phases: (i) diagnosis of conventional ERP-based practices, (ii) design of a common itemized structure, (iii) iterative development of a parametric BIM model, and (iv) comparative evaluation against traditional workflows using data from real high-rise projects. The results demonstrate substantial improvements in traceability, automation, and data consistency, increasing cost–schedule coverage from approximately one-third of the items to over 95%. These findings show that effective 5D integration depends primarily on semantic structuring and standardized modeling logic rather than increased geometric detail, providing a practical and replicable approach for improving cost–schedule integration in structural works. KW - BIM 5D KW - cost-schedule integration KW - common itemized structure KW - structural works KW - lean-BIM integration. PB - T2 - Proceedings of the 34th Annual Conference of the International Group for Lean Construction (IGLC 34) DA - 2026/06/22 CY - Singapore, Singapore L1 - http://iglc.net/Papers/Details/2534/pdf L2 - http://iglc.net/Papers/Details/2534 N1 - Export Date: 19 June 2026 DB - IGLC.net DP - IGLC LA - English ER -