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Spatial Analysis For Tilt-Up Constructions Based On A Case Study

Building using Tilt-Up concrete panels is a technique that allows contractors to erect facilities in a short period of time because of the simplicity of the method. Each year the construction industry builds more than 10,000 tilt-up panel structures covering more than 60 million m (650 million square feet). Architects have the challenge of producing harmonic designs that fulfill client’s needs and expectations and breaking the “box structure” paradigm that has traditionally defined tilt-up. This paper focuses on spatial analysis of the bracing system for tilt-up constructions and tolerable clearances between the lifted panel and the on-going structure. 3D and 4D-models were developed in order to minimize the time spent on installation and the expense of temporary support materials used during the placement of concrete panels such as steel braces, concrete deadmen and foundation walls. This paper is based on a case study of the construction of a unique 1,670 m (18,000 square feet) residential facility requiring more than 500 m of concrete (17,470 cubic feet) and consisting of more than 2,400 m of panel surface area (26,200 square feet). The facility is composed of 108 concrete panels connected together like a jigsaw puzzle. The greatest challenges of the job were the requisite high joint connection accuracy of 1.27 cm panel to panel (half an inch) and the task of building the structure in accordance with architectural and engineering demands.