| 摘要 |
A modular building structure comprised of a plurality of prebuilt boxlike units, each having sidewalls, a ceiling and a floor slab, which are stacked to form successive stories of a building. The units are positioned such that there is an open space between any two units on the same floor level. The interior units at intermediate levels are each stacked between at least four other units. In one embodiment the boxlike units have load-bearing vertical columns which are located inwardly with respect to the sidewalls, and the units are stacked such that at least portions of the sidewalls overlap sufficiently that one or more of the load-bearing columns of the upper and lower units are aligned. In high-level embodiments these columns are post-tensioned to form a unitary assembly. In some embodiments the units are arranged with their sidewalls perpendicular to the front of the building, while in other cases each of the walls meets the length of the building at an angle other than 90 DEG .
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