Improved concrete form systems (10) are provided which permit erection of the systems (10) in close quarters adjacent existing structures, e.g., the systems (10) may be successfully installed with as little as 2-1/2 inches of clearance between such existing structures. The systems (10) include spaced apart outer and inner wall sections (12, 14) each formed of juxtaposed, interconnected form panels (16, 18, 20, 22), with connection assemblies (24, 25) serving to interconnect the adjacent form panels (16, 18, 20, 22) of each wall section (12, 14), and to cross- connect the wall sections (12, 14). Each form panel has a planar panel segment (26) having side marginal connection structures (48) preferably including concave surfaces (50, 52). The connection assemblies (24, 25) have elongated connection elements (58, 82) having central openings (60a) and laterally extending legs (62, 64) which mate with the surfaces (50, 52). A series of elongated, threaded connector bodies (72) extend through the element openings (60a) and are threadably secured via threaded ferrules (70) forming a part of the elements (58), and nuts (84) forming a part of elements (82). Threaded connection of the bodies (72) serves to draw together the adjacent form panels (16, 18, 20, 22) by virtue of a camming action between the legs (62, 64) and the surfaces (50, 52). Such threaded connections also cross-connect the wall sections (12, 14).
E04G 17/00 - Connecting or other auxiliary members for forms, falsework structures, or shutterings
E04B 2/30 - Walls having cavities between, but not in, the elementsWalls of elements each consisting of two or more parts kept in distance by means of spacers, all parts being solid using elements having specially designed means for stabilising the positionSpacers for cavity walls
E04G 17/04 - Connecting or fastening means for metallic forming or stiffening elements
E04G 17/14 - Bracing or strutting arrangements for formwallsDevices for aligning forms
E04G 9/00 - Forming or shuttering elements for general use
An improved concrete form (20) is provided having spaced apart, opposed, multi-panel wall sections (22, 28) interconnected by connection assemblies (68). Each wall section (22, 28) is made up of at least two form panels (24, 26, 30, 32) which are placed in side -by-side, abutting relationship. Each form panel (24, 26, 30, 32) has a planar panel segment (34) with a pair of projecting, apertured sidewalls (42) secured to the outer surfaces (38) thereof. Each segment (34) has a series of recesses (62) formed in the butt edges (60) thereof outboard of the proximal sidewalls (42), so that when the form panels (24, 26 or 30, 32) are adjacent each other, a series of through-openings (64) are cooperatively defined by the recesses (62). The connection assemblies (68) include an elongated, threaded connector (70) of length to bridge the wall sections (22, 28) and to present threaded end segments (78, 80) extending beyond the wall sections (22, 28). Connection clip assemblies (74, 76) are threaded onto the ends (78, 80) of the connectors (70) to interconnect the panels (24, 26 and 30, 32) as well as the wall sections (22, 28).
patents