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2. 发明授权

US3918222A Prefabricated modular flooring and roofing system 失效
标题翻译：预制模块化地板和屋顶系统
公开(公告)号：US3918222A
公开(公告)日：1975-11-11
申请号：US47543074
申请日：1974-06-03
申请人： BAHRAMIAN BAHRAM
发明人： BAHRAMIAN BAHRAM
IPC分类号： E04B5/04 , E04B5/43 , E04G21/00 , B21D39/00 , E04C3/10
CPC分类号： E04B5/43 , E04B5/04 , E04B5/06 , Y10T29/49874
摘要： A plurality of elongated precast concrete beams or slabs are prestressed longitudinally and arranged in parallel relation to form a waffle-type floor structure. Each of the beams or slabs includes a plurality of longitudinally spaced and laterally extending integral walls through which reinforcing tubes define corresponding openings. The openings in each beam or slab align with corresponding openings in each adjacent beam or slab, and a cable extends through each series of aligned openings. Each cable is post-tensioned and is then attached by cement mortar to the corresponding tubes to provide a modular floor or roof structure which distributes loads generally uniform in all directions. In one embodiment, a series of T-shaped and/or L-shaped precast reinforced slab members may be positioned between each set of adjacent beams and are adapted to rest on bosses projecting outwardly from the opposing sides of the adjacent beams. The slab members have reinforcing tubes defining openings which align with the openings within the beams and which also receive the cables before they are tensioned and cemented to the tubes. In another embodiment, the slabs are supported by a framework of prestressed elongated beams, and the ends of each beam are supported by precast head members mounted on the top of upright columns. The laterally extending post-tensioned cables are attached to loops projecting upwardly from the adjacent beams, and a layer of topping concrete covers the loops and cables on each beam.
摘要翻译：多个细长的预制混凝土梁或板坯纵向地预应力并且平行布置以形成华夫饼形地板结构。梁或板中的每一个包括多个纵向间隔开的和横向延伸的整体壁，加强管通过该整体壁限定对应的开口。每个梁或板中的开口与每个相邻梁或板中的相应开口对准，并且电缆延伸穿过每一系列对齐的开口。每根电缆都被后张紧，然后通过水泥砂浆连接到相应的管子上，以提供一个模块化的地板或屋顶结构，其分布在所有方向上大致均匀的载荷。在一个实施例中，一系列T形和/或L形预制件加强的板坯构件可以定位在每组相邻梁之间，并且适于搁置在从相邻梁的相对侧向外突出的凸台上。板坯构件具有限定开口的加强管，其与梁内的开口对准，并且在其被张紧并且与管道接合之前也接收电缆。在另一个实施例中，板坯由预应力细长梁的框架支撑，并且每个梁的端部由安装在立柱顶部的预制头构件支撑。横向延伸的后张拉电缆连接到从相邻梁向上突出的环，并且顶层混凝土层覆盖每个梁上的环和电缆。

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