web plate การใช้

• The stiffening system consists of triple web plate girders placed parallel to the road grade.
• The Annan River Bridge is characteristic of other plate girder bridges consisting of a vertical web plate.
• The horizontal angles are 100 x 75 x 16 mm and secured with an additional 13 or 14 rivets per web plate.
• The three inner girders are conventional being 0.76m deep and built up of a web plate, four angles and top and bottom cover plates.
• Typically, web plate design failed to consider post-buckling behaviour under shear, thus ignoring the advantage of the tension field and its added benefits for drift control and shear resistance.
• The 5 / 16 inch ( a standard recommendation in the early twentieth century ) web plates are fastened with 8 rivets to the 100 x 75 x 9.5 mm vertical angles.
• The large section of the ribs was fabricated using curved web plates specially rolled using bevelled rolls; the novel technique was created by Thomas Charlton of Hawks Crawshay, and was estimated to have saved 14 % on the cost of the roof ironwork, compared with cutting rectilinear plates to the curve.