Six 7.6 m (25 ft) long beams (R1 R6) were fabricated with Prestressed Steel Fiber Concrete (PSFC) to study the behavior of the beams in web-shear and flexure-shear mode of failure under monotonic loading.
Then take two of the 4 ft. beams and cut them in half so you have four 2 ft. beams.
Typically, engineers recommend construction joints every 60 to 100 ft of beams.
The FT conditioned beams with the FA and the EP resin FRPs had 22 and 25% higher yield loads and 25 and 31% higher ultimate loads, respectively, compared to the FT conditioned unstrengthened beam.
Engineering blueprints of the bridge structure illustrated grout-filled transverse tie assemblies securing 3-ft concrete beam sections in a longitudinal grid pattern.
Cut 45 degree angles into the ends of the 2 ft. beams.
Fluorescence microscopy of GFP expressing pollen or onion cells was carried out after over night incubation at 20°C using a fluorescence microscope (Axioskop, Zeiss, Germany) equipped with a HBO 50 UV lamp using a filter set (excitation BP450-490 nm, FT 510 chromatic beam splitter, and emission LP 520 nm).
The ovaries were removed and the stigmas softened overnight in 1 mol l-1 NaOH, rinsed in water and mounted on a microscope slide with a drop of 0.1% aniline blue (0.1 mol l-1 K3PO4 supplemented with 18% glycerol), and then observed under a fluorescence microscope (Zeiss Axioskop 40) with a BP 395-440 excitation filter BP 395-440, FT 460 chromatic beam splitter, and LP 470 barrier filter.
The UV H365 filter set used for examination in UV light consists of the following filters: excitation BP 365/12, beam splitter FT 395 and emission LP 397.
LLDF_{shear} = 0.2 + frac{S}{12} - left( {frac{S}{3.5}} right)^{2} (22 where LLDF shear is the live load distribution factor for shear and S is the beam spacing (ft).. Table 2 summarizes the input data for each of girder type.
For the data in Figure 7D, fluorescent microscopy (Zeiss Axioskop2, Zeiss, UK) was used with filter set 10 (excitation filter BP 450 490 nm, beam splitter FT 510 nm and emission filter BP 515 565 nm).
