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Pairs of bar-link saddle chains one above another with suspender rods hold the deck, which is 220 feet (67 m) in length and 22 feet (6.7 m) wide. [9] [a] Thomas Telford's method of "three lines of rectangular cross-section eye-bar links with short connecting links and cross-bolted" was copied from his 1822 Menai Suspension Bridge construction.
Cross-section diagram of three hills, with two saddles marked by X. • There are three peaks ( Schartenhöhe ) or prominences shown labeled 'A', 'B', & 'C' . • The diagram illustrates the topographic isolation (German: Dominanz )- the distance from a prominence which is also a minimum to the point of the same height .
Upon completion of the deck, the added load will pull the main cables into an arc mathematically described as a parabola, while the arc of the deck will be as the designer intended – usually a gentle upward arc for added clearance if over a shipping channel, or flat in other cases such as a span over a canyon. Arched suspension spans also ...
The approach span on the Tsing Yi side is similar in form and cross-section to the suspended deck, but is supported on piers instead by cables. The first span was assembled on the ground and raised into position using strand jacks. Further construction then proceeded in cantilever in smaller sections, using derrick cranes stationed on the deck ...
An architectural drawing or architect's drawing is a technical drawing of a building (or building project) that falls within the definition of architecture.Architectural drawings are used by architects and others for a number of purposes: to develop a design idea into a coherent proposal, to communicate ideas and concepts, to convince clients of the merits of a design, to assist a building ...
The earthquake measured 6.9 on the moment magnitude scale and while the epicenter was distant from the bridge, a 50-foot (15 m) section of the upper deck of the eastern truss viaduct portion of the bridge collapsed onto the deck below, indirectly resulting in one death at the point of collapse.
A grid deck uses beams and diaphragms as the supporting structure. The supporting system of a grid deck is analyzed using a grillage analysis. A slab deck is one where the deck is analyzed as a plate. If the slab has a stiffness that is different in two directions (at right angles), then the deck is known and analyzed as an orthotropic deck.
A saddle roof is a roof form which follows a convex curve about one axis and a concave curve about the other. The hyperbolic paraboloid form has been used for roofs at various times since it is easily constructed from straight sections of lumber, steel, or other conventional materials. [ 1 ]