(i) Beam and Slab Bridge:These are convenient where the span of the beam exceeds 5 in. For small spans I-section beams may be used. For spans more than 8 m, built-up I-sections or plate girders are used. By providing a combination of main plate girders and cross beams, the bridges can be made for spans up to 20 m.
Drawing Size Reference Table, Architectural and ARCH A - 9 x 12 inches (228.6 x 304.8 millimeters) ARCH B - 12 x 18 inches (304.8 x 457.2 millimeters) ARCH C - 18 x 24 inches (457.2 x 609.6 millimeters) ARCH D - 24 x 36 inches (609.6 x 914.4 millimeters) ARCH E - 36 x 48 inches (914.4 x 1219.2 millimeters) And here are the standard US engineering drawing sizes:
The plate girder is denoted in this study as (T3). The small-scale plate girder was SS and had an overall length of 13.411 m as shown in Figure 6.17. The web of plate girder T3 was 914 mm high and 8 mm thick, while the flange of the plate girder was 229 mm wide and 11-25 mm thick, as shown in Figure 6.17.
Rail Sections - WabtecTie Plates The use of single or double shoulder tie plates makes a more stable track and greatly lengthens the life of wood ties. Punched and sheared from hot-rolled steel sections, tie plates provide proper cant, uniform bearing surface for the rail and better load distribution to the ties.They hold the rail to gauge, providing
Road and Bridge Speci cations - Virginia Department of State Location & Design Engineer State Structure & Bridge Engineer Charles A. Babish, P.E. Raymond Khoury, P.E. State Materials Engineer State Trafc Engineer E. Kevin Gregg Dean H. Gustafson, P.E., P.T.O.E. State Maintenance Division Administrator State Operations Engineer
SEPTEMBER 2013 LRFD BRIDGE DESIGN 12-3 height range to which it applies. Shop drawing submittals for MnDOT approval will not be required when standard culvert sections are used. The standard design tables are based on welded wire fabric reinforcement with a yield strength of 65 ksi and a concrete clear cover of 2 inches.
Section 4 - Drawing Sheets and Title Blocks4.1 SHEET SIZES The RTAs Bridge Engineering Branch uses three standard sheet sizes for drawings and sketches. These sheet sizes are in agreement with the International Standard Sheet Sizes Series A and are suitable for microfilming. All drawings and/or sketches produced by the Authoritys Bridge Engineering Branch or by
Structural Steel Connections, Joints Detailsfillet weld size (w) equals the plate thickness For other values of plate thickness, t, the maximum weld size is t 1/16 in. BMA Engineering, Inc. 6000 14 Basic of welding The minimum permissible length of a fillet weld is 4 times its size. If only a shorter length is available, w = L/4.
Bridge Bearings Introduction AASHTO defines a bearing as a structural device that transmits loads while facilitating translation and/or rotation.1 In the past Caltrans has used a variety of bearings with varying degrees of success. These include rockers, rollers, pins, pots, steel girder hangers, PTFE/elastomeric, and elastomeric pads.