How to Become Better With Metal Decking In 10 Minutes > 자유게시판

FIGS. 15, sixteen and 17 are cross-sectional views illustrating additional embodiments of the second hold-down technique of FIGS. FIGS. 15, 16 and 17 illustrate deformations 70' within the form of an embossment 71', an indentation 74' and an embossment 77', respectively. 12 to 14, the deformations 70 might take the type of a usually rectangular embossment 77 having a decrease end 78 protruding from the highest surface seventy two of the sloped net strip 49 to supply a longitudinal concrete gripping surface 79. In every case, the longitudinal concrete gripping surfaces 73 or 76 or 79 complement the hold-down action of the longitudinal keying recesses sixty four (FIG. 4) supplied by the longitudinal rib 61, as will probably be hereinafter more absolutely described. FIG. Forty two is an exploded isometric view illustrating another embodiment of a hanger system. In the preferred embodiment the first hold-down means fifty four (FIG. 4) contains a longitudinal rib sixty one integrally formed on the juncture of and extending into the area between a contiguous sloped internet strip forty nine and the adjoining valley strip forty eight (48a, 48b). The deformations 60 cut back the structural effectiveness of the valley strips forty eight (48a) below tension and compression. As shown in FIG. 2, the second hold-down means 55 includes a row of deformations 70 integrally formed in every of the sloped net strips 49. The deformations 70 could take the type of usually rectangular embossments 71 (FIGS.

The stiffened edge 59 includes an offset strip 83 spaced-aside from the common airplane 52 by no less than two sheet metallic thicknesses. The stiffened edge 58' of the decking unit 44D includes a first offset strip 91 spaced-other than the widespread aircraft 52 by at the very least two sheet metallic thicknesses. The deformations 71', 74', 77', could also be formed by a punch-out course of whereby the deformations 71', 74', 77' preferably are offset from the surfaces 72, 75, 72 respectively, by less than two sheet metal thicknesses. The present decking unit is formed from sheet steel having a girth of roughly 60 inches and could also be supplied in sheet steel thicknesses within the vary of sixteen gauge to 22 gauge. Often, exterior home lights will do the job, particularly if the 3" Composite Deck lies close to the constructing; but for aesthetics and most enjoyment, lighting particularly designed for the deck is a element price having.

In addition, extraordinarily slim slits 39 are produced having a width which is less than one sheet steel thickness. FIGS. 34 and 35 are broken finish views of a fragment of the package deal of FIG. 33 wherein three of the decking models of FIGS. The decking unit forty four (FIG. 2) presents decking unit troughs 103 outlined by the confronting sloped internet strips 49 and the common valley strip. The sheet metal decking unit forty four consists of first hold-down means fifty four positioned beneath the geometric mid-plane 50 for resisting vertical disengagement of the concrete 45 (FIG. 1) from the decking unit 44. Second hold-down means 55 positioned above the geometric mid-airplane 50 and supplementing the first hold-down means 54, is supplied for resisting vertical disengagement of the concrete forty five (FIG. 1) from the decking unit 44. Shear-resisting means fifty six positioned below the geometric mid-airplane 50 is provided for resisting motion of the concrete forty five (FIG. 1) longitudinally of the decking unit 44. A longitudinal stiffening bead 57 preferably is offered in each of the crest strips 47. The lateral valley strips 48a, 48b are supplied with stiffened edges 58, 59 respectively.

7, 10 and 13 that the deformations 71, 74, 77 are imperforate and for that reason are the popular form of deformation for use in cellular metal decking models -- see FIG. 36 -- of the sort providing electrical raceways. As part of that analysis, panel profiles are examined to ensure that they meet all specs. It will likely be observed in FIG. 21 that a joint 89 is provided between the adjacent decking models 44A, 44B, which is adjustable laterally by means of a distance indicated at 90. The joint 89 consists of three sheet metallic thicknesses, that is, a part of the offset strip 83, part of the reverse-turned strip 87, and a part of the valley phase 81. The structural effectiveness of every of the lateral valley strips 48a, 48b below positive and destructive loading, is elevated by the stiffened edges 58, 59, respectively. An identical guiding perform is supplied by the opposed sloped web strips 49 within the embodiment illustrated in FIG. 4. Nestability of the present decking unit forty four might be absolutely described later in the specification. In one embodiment of the present decking unit, each of the longitudinal ribs connect the confronting edges of spaced valley segments. A stiffener strip 84 connects the offset strip 83 to the adjoining valley section 82. The offset strip 83 terminates in an upstanding first stiffener flange 85. The offset strip 83, the stiffener strip 84, the first stiffener flange 85 and the rib 61 cooperate to extend the structural effectiveness of the lateral valley strip 48b below positive and destructive loading.