Masonry Magazine January 1970 Page. 43
Hawker Apartments at the University of Kansas, Lawrence, Kansas, used area enclosures built of 2 by 4-in. wood framing and covered with polyethelene sheets. These enclosures measured approximately 12 by 20 ft in plan and 12 ft in height. Figure 5 shows the construction of an enclosure. Figure 6 shows several of the enclosures in place. In such enclosures, the temperature can be maintained at comfortable levels for workmen by the use of heaters (Fig. 7).
A similar application is shown in Fig. 8 for a student loadbearing housing complex in Guelph, Ontario, Canada, where the contractor built enclosures of structural steel which were entirely enclosed with plastic. It was reported by the contractor, Ellis Don, that the costs of enclosures and protection for winter construction were less than the cost of a performance bond to hold the project over the winter.
Floors were precast in a separate enclosure and stocked at the site. The construction sequence was as follows:
1. Precast concrete slabs were set on masonry bearing walls
2. Masonry units were stocked on the slabs
3. Enclosure was placed
4. Masonry was built; and
5. Enclosure was moved to another section and then the cycle was repeated.
Using these enclosures, construction continued during temperatures as low as 15 F.
Large Enclosures. During the winter of 1968, the Madsen Construction Company built a 3-story Airmen's Dormitory at the Minot Air Force Base in North Dakota. For this construction, which has longitudinal bearing walls and precast concrete planks, the contractor enclosed one half of the building width at a time. A plastic covered wood frame provided a large enclosed space that was heated with space heaters (Fig. 9). The frame was moved up as construction proceeded. The story below was easily enclosed by placing polyethelene plastic sheets in the window openings to provide working area for other trades (Fig. 10).
References
Technical Notes on Brick and Tile Construction Structural Clay Products Institute
Cold Weather Masonry Construction, 1, December, 1967
Cold Weather Masonry Construction, Construction and Protection Recommendations, 14, January, 1968
Cold Weather Masonry Construction, Winter Building Techniques in Europe, IB, May, 1968
Cold Weather Masonry Construction, Contemporary Bearing Wall Buildings, IC, October, 1968
Contemporary Bearing Wall Construction, 24F, March, 1968
Contemporary Brick Bearing Wall Case Studies Structural Clay Products Institute
Oakcrest Towers, December, 1966, January, 1967
Park Mayfair East, February-March, 1967
Minot Air Force Base Dormitory, August-September, 1968