Anchor plates

The objective of these embedment mechanisms or combinations of mechanisms (1-7) is to embed an anchor plate (fluke) or anchor pile (Figure 10.39) to its design depth, D. The hydrostatic anchor is, by comparison, a surface anchor that relies on suction to attach it to the seabed (Wang et al., 1975,1977) and to resist pullout. The hydrostatic anchor will not be discussed in further detail because of its special nature and limited use to date. 

In anchoring plate subjected to a compressive and a shearing force. 

Anchor plates for the preparation of multiple samples have small hydrophilic islands, typically of 100-500 pm diameter, placed on a hydrophobic surface [147]. The hydrophobic surface prevents spreading of the sample solution over a larger area, as otherwise observed for dried-droplet preparations. Instead, the hydrophilic solution contracts onto these islands, thereby concentrating the matrix and analyte onto a small defined area upon solvent evaporation. This confinement to a smaller volume is particularly useful for analytes of low concentration in combination with proportionally lowered matrix concentrations, and also facilitates automated analyses of the fixed-location samples. Anchor sample plates are also commercially available as disposable targets prespotted with matrix and calibration spots. 

Figure 10.236 illustrates the proper way to bond guy wires to the buried ground system. The lead is dressed straight down from the topmost to the lowest guy. It should conform as close to vertical as possible, and be dressed downward from the lower side of each guy wire after connecting to each wire (Fig. 10.234). To ensure that no arcing will occur through the turnbuclde, a connection from the anchor plate to the perimeter ground circle is recommended. No. 2 gauge copper wire is recommended. This helps minimize the unavoidable inductance created by the conductor being in the air. Interconnect leads that are suspended in air must be dressed so that no bending radius is less than 8 in.

A Vs-in. thick preformed plain elastomeric pad or fabric pad placed atop the concrete bearing surface or grout pad most economically compensates for any minor surface irregularities. Fully threaded anchor rods can be either cast into the concrete or drilled and grouted into place. An anchor plate can be either bolted or welded to the bottom of the anchor rod to augment uplift capacity in the concrete. If no uplift capacity is required, a swedged rod may be substituted for a threaded one. The swedged rod may be terminated just below the top of the masonry plate and the void filled with a flexible sealant. 

The most common practice for soil nail wall construction includes applying two layers of shotcrete for the face of the wall. Each shotcrete layer is usually about 4-6 in (100-150 mm) thick. The first layer of shotcrete is placed directly against the excavated soil face and then the steel anchoring plate and beveled washer with hex nuts are installed to lock the soil nail in place. The second layer of shotcrete is then subsequently installed. For these soil nail walls, it is important for the designer to check the flexure and punching-shear demand generated by the soil nail in each slab layer. 

The soil reinforcement materials that are used in MSWs can be broadly classified into metallic and geosynthetic categories. Metallic reinforcement includes steel strips, steel bar mats and ladders, welded wire, and steel anchor plates attached to the facing using steel rods. Almost all steel reinforcement products are galvanized for corrosion... 

Anchoring. Bismuth alloys that expand on solidification are particularly useful for aligning and setting punches in a die plate. It is much easier to melt and pour an ahoy around a punch than to machine the entire die plate and punch at the same time. This method also makes it easier to relocate parts or change dies. The low temperatures involved do not cause distortion. 

Older tank cars have a center sill or beam running the entire length of the car. Most modern cars have no continuous sill, only short stub sills at each end. Cars with full sills have tanks anchored longitudinally at the center of the sill. The anchor is designed to be weaker than either the tank shell or the doubler plate between anchor and shell. Cars with stub sills have similar safeguards. Anchors and other parts are designed to meet AAR requirements. 

The impact forces on car couplers put high stresses in sills, anchors, and doublers. This may start fatigue cracks in the shell, particularly at the corners of welded doubler plates. With brittle steel in cold weather, such cracks sometimes cause complete rupture of the tank. Large end radii on the doublers and tougher steels will reduce this hazard. Inspection of older cars can reveal cracks before failure. 

The drums/dampeners must be provided with reinforced support plates as the vessel is anchored to a strong/heavy concrete support. If the vessel is not mounted to the compressor, extreme care must be taken to prevent vibrational... 

Blake, William.The illuminated Blake all of William Blake s illuminated works with a plate-by-plate commentary / annotated by David V. Erdman. Edited by David V. Erdman. 17 Jan 2005 Garden City (NY) Anchor Press/Doubleday, 1974. 416p. 

The method for immobilizing EGF-His on SAMs gave rise to the need for fabricated cultureware that could allow large-scale expansion of pure NSCs. We attempted to construct culture modules with surface areas much larger than the laboratory-scale substrates described above. For uniformly anchoring EGF-His over a large area, we utilized a glass plate with amine functionalities on the surface. 

Amide bond is an effective anchor to connect CNTs to substrate surfaces. Lan et al. [52] covalently assembled shortened multi-walled carbon nanotubes (s-MWNT) on polyelectrolyte films. The shortened MWNT is functionalized with acyl chloride in thionyl chloride (SOCl2) before self-assembling. The FTIR spectrum of self-assem-bled MWNT (SA-MWNT) adsorbed on a CaF2 plate modified with PEI/(PSS/PEI)2 shows two characteristic absorption peaks at 1646cm-1 (amide I bond) and 1524cm-1 (amide II bond) resulting from the amide bond formed between the polyelectrolyte films and s-MWNTs. 

Figure 8.11 Illustration of Mauguin twisted nematic cell, reported in 1911. Substrates are thin mica plates, which are uniaxial with their optic axis parallel to plane of plates. Apparently, uniaxial crystal stmcture of mica produces strong azimuthal anchoring of nematic LCs of Lehmann, such that director is parallel (or perpendicular) to optic axis of mica sheets at both surfaces. Mauguin showed that method of Poincard could be used to explain optics of system if it was assumed that LC sample created layer of material with uniformly rotating optic axis in twisted cells.

Blast loaded structures produce high reaction loads at column supports. This usually requires substantial base plates as well as high capacity anchor bolts. Achieving full anchorage of these bolts is of primary importance and will usually require headed bolts or plates at the embedded end of the bolts to prevent pullout. When anchor bolts are securely anchored into concrete, the failure mechanism is a ductile, tensile failure of the bolt steel. Insufficient edge distance or insufficient spacing between bolts results in a lower anchorage capacity and a brittle failure mode. 

---