Web stiffeners

Nb = number of bolts used in tail beam or flange lug N = width of flange of tail beam with a web stiffener (N = 1.0 without web stiffener) nL = number of head or side lugs P =pick end load, lb Pe = equivalent load, lb Pl = longitudinal load per lug, lb Pr = radial load, lb Pt = transverse load per lug, lb Rb = radius of base ring to neutral axis, in. 

In Chapter 8 two potential applications for the bonding of structural steelwork will be considered in some detail. These are bonded web stiffeners and tension splices or cover plates to girder flanges. 

Fig. 8.11. General arrangement of test girders with bonded web stiffeners (Ref. 14).

The buckling stress may be increased by the incorporation of suitable web stiffeners provided the in-plane stress is not greater than the in-plane strength. 

Isotropic web-stiffeners, with the same elastic properties as the member to which they are attached, may be dimensioned as follows ... 

A set of tools is required for the manufacture of a turbine blade these include the two half shells in a pair of moulds, the web stiffeners and the spar cap. Further moulds may be associated with blade edges and root ends. 

Absence of sink marks enables thick sections to be produced with large bosses, webs, stiffening ribs, etc. on the reverse side of a moulding. Noryl SF computerized cash registers make a good example of this kind of exploitation in a demanding application, i.e. sink marks would be totally unacceptable on the surface of the product. 

A spar cap, web stiffeners and other details are installed in one of the halves of the blade mould and adhesive is applied to the exposed bonding edges of these units. The seeond half of the mould, containing the half-shell, is then turned over and lowered onto the first the adhesive is then allowed to enre, thus joining the two halves of the wind turbine blade together. The steel support frames are hinged together at one side to enable the mould to... 

Web-stiffened foam sandwich panels with orthotropic facing and a number ... 

Two connection specimens (SC-WHPl and SC-WHP2) were designed according to the procedure described earlier. The resulting beam and column sizes and details of the connection specimens are summarized in Table 2. The specimens are identical except for the beam web stiffeners and beam flange drilled holes used in specimen SC-WHP2. 

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