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Our management. Brian Johnson. Christopher Rodrigues CBE. Claire Hughes. Further information is given in Part 6 of this Steel Handbook.
Fy is taken as MPa. These percentages may. Note that the full unreduced section properties are also used in the calculation of deflections. Forming in press brakes. Thta is so because. Sectional Properties The calculation of areas. Other considerations in the choice of the sectional dimensions are based on the provisions of the AISI Specifications.
For one. Its mdjor drawbacks a m the lower dimensional quality control and the higher susceptibility to micro-cracking of the marerials at the corner bends which may affect the structural integrity of the shapes. Sectional Dimensions As with the other fabsicated shapes. The computed deslgn stresses based on the effective section properties shall not exceed the basic allowable stresses specified Slitting Guide For Lip Sections The following discussion is intended primarily as a guide to fabricators and manufacturers of light gage sections in the vlitting of locally available coil products.
The table gives the number of identical strips to be cut iron the coil and the expected yield in percent. Note that the width of the strips increases as the thickness of the steel decreases.
Note that further economy may be attained by combining sections and the use of Tahl. Led above. This table is useful in determining the combination of sections whict would optimize utilization of coils. Table gives the theoretical blank width required for each particular LC or LZ section. Calculating the total lengtn. It should be noted that the actual area o f thln elements under compressive stresses must frequently be replaced by a reduced effective area for calculating the effective crosssectional properties as required by the AISI.
Two tables are herein presented giving the theoretical width of strips and the recommehded slitting schedule. As shown.. Table presents the recommended slitting scheclulc? The section properties of thin-walled shapes are computed using the so-called "line3r method.
Dimensional Tolerances The tabulated dimensions and properties are theoretical values and the finished product will normally have some slight variations from these tabulations. To guide the designer and fabricator. Lip mu. Flange Width! Under ou. Depth I mm I I M E P Stael Piandhoak Han 4- xxok. Cold-Formed Light G a q e S h a p w 3. Cold-Formed Light Gage Shapes Radius R mrn 8. A s a result. These include channel sections up to a depth of m.
WT shapes. The available shapes and sizes of locally produced rolled shapes are limited. ROLLED SHAPES Rolled steel shapes are herein defined to inslude s t r u c t u r a l steel sections produced by passing red-hot blooms for larger sections or billets for smaller sections through rolls until tke desired shape is attained. Part 4 has keen considerably expanded to include the angles which can be produced locally up to mm and the AISC Standard W shapes.
To increase the usefulness of the handbook. Channels have depths ranging from W shapes have depths ranging from Sectional Dimensions and Properties Except for the angles which can be locally produced up to a maximum depth of nun. Materials The minimum quality requirement for rolled shapes is struc- tural ateel conforming to the billet specifications for PNS 49 Grade structural Grade. WT shapes have depths ranging from S shapes have depths ranging from Angles have depths ranging from ASEP ' ' eel Handbook Locally produced rolled shapes are available only for structural steel whose minimum specified yield stress.
Manual of Steel Construction. Pipe sections have depths ranging from Such close tolerances are adopted to avoid overlaps in angle legs and thickness dimensions in keeping with internationally accepted standards as can be found say in ASTM.
For the locally produced angles. Dimensional Tolerances The tabulated dlmennions and properties dre theoretical values and the finished product will. The increment of the angles' thicknesses were made to be similar to that of the plate thicknesses of the built-up shapes to facilitate easy recall in detailing and design. To guide the deslgner and fabricator. I incl 0. Over and Under.
For unequal angles. CM to For channels 16 mi and under in depth. Rolled Shapes a W is neasured at center iine of web for W and S shapes. G is measured parallel to web. F88 iocl. W ahapee used as columns with lengths over 9. Out-of-square tolerance is per mm of leg length.. BnCci E 4 I a Nominal size pertains to greatest: sectional dimension.
W shapes with a nominal size of mm and under w i t h lengths over For angles.! I tot. ASEP Stec? Q Rolled Shapes 4. ASEP Steel haadhc.
SBF E 1. Handbook 2- Fkngs Thldnnm. QIO 1. Y-Y I I 8 xld rnm4 W MI i9. B Rolled Shapes xtd md B7l 1 1Qi. Roi led Shapes x mm r mm tan a. ASEP Steel. Rolled Shapos Handbook In the absence of a ceiling. Materials used are normally steel. For composite systems. Metal deck products are mostly proprietary in nature. Metal decks may be used structurally. For "othern profiles. The manufacturer usually holds a patent for each particular metal deck profile being produced.
Regarding the architectural aspect. Similar to cold-formed light gage frame members. For "trapezoidal profile" metal decks used in composite slabs. The metal deck profiles featured in this Part 5 of the Steel Blur. F of Wa and MPa. Very long apana may be limited by transport limitations. Pot hot-rolled varieties. Metal decks floor slab systems are rWar locally available in specified minimum yield strengths. Metal decks lass than three spans shall be check4 for both bending stresses and deflections- The basa metal quality requirement for metal floor decks be colg-rolled steel having a minimum yield point of a.
The "trapezoidaln or. Par atmospheric corrosion-resistant steels. Regardless of this claim. The structural propertias for each particular profile were supplied by the manuf aoturers. The respective nrtinufacturers claim that their metal decks are "fire-rated" from one to two hours. The NSCP and its referral codes. When a metal deck i a primarily used as permanent form for ii concrete slab.
Fireproofing Fireproofing is a very critical aspect of metal decks especially if metal decks are used entirely or partially as reinforcement for concrete slabs. Metal Decks Currently. As a component of a composite slab system. ASEP requires that for metal decks used as total or partial reinforcement for composite sections. Design examples o f each Particular metal deck profile are available free from the ra8peCtiVe manufacturers' brochures. AISI Edition. For structures built in corrosive environments lika s a r i n r off-ahor6 structures.
P Corrosion Another very important aspect of nbatal decks if used structural reinforcement tor concrete slabs is the corrosion factor. UTW 2. ABBP ytrel Handbook Steel flat products are Locally available in the form of hot-rolled plates HRP.
The process of hot rolling consists of passing xed-hot ductile steel slabs between two large. Commercial CQ or structural S Q plates. The product standards to which these are manufactured are listed in Table In cold rolling operations. These steels have alnimtm s-cified yield. The basic allowable stress shall be taken as 0. These steels have a minimum specified yield stress. Handbook and cold-formed plate shames tabulated i a Part 2 of this Steel Handbook. High-Strength Low-Alley - 3 Cold-rolled sheet flat.
Steel of this variety is locally available in thic messes from 0. Steel conforming to other material specifications can also be rolled Locally. Learn how to properly install our products by accessing the Installation Instructions Library. We make it easy for you; simply download the installation as a PDF Stay updated, sign up for our newsletter and receive Compotite news on your email. Compotite Corporation, pioneer of waterproofing, crack-isolation and sound-abatement solutions, has expanded it's managment team.
Our Products. Waterproofing Compotite revolutionized the shower waterproofing industry in with the original shower pan membrane. Crack Isolation Compotite offers a full line of crack isolation solutions to protect thin-set tile installations from damage arising from typical substrate shrinkage cracks and other horizontal in- plane cracks.
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