what are some strengths of a truss bridge?
437807
['Extremely strong. The structure of interconnecting triangles means that the load-bearing capacity of truss bridges is huge. ... ', 'Uses materials effectively. ... ', 'Withstands extreme conditions. ... ', 'Roadways built on to the structure. ... ', 'Requires a lot of space. ... ', 'High maintenance costs. ... ', 'How good is your engineer? ... ', "They're heavy."]
196276
Bridges designed for modern infrastructure will usually be constructed of steel or reinforced concrete, or a combination of both. The concrete elements may be reinforced, prestressed or post-tensioned. Such modern bridges include girder, plate girder, and box girder bridges, all types of beam bridges.
1446494
A joint framed structure that sustained the inclined, vertical or horizontal loads. A truss consist of angles, channels, plates and eye bars. It is a framework, typically consisting of rafters, posts, and struts, supporting a roof, bridge or other structure.
1252590
['Recognition of need. ... ', 'Synthesis (Mechanisms). ... ', 'Analysis of forces. ... ', 'Material selection. ... ', 'Design of elements (Size and Stresses). ... ', 'Modification.']
1335860
['Tenacity: 6.0 – 8.5 gm/den.', 'Density: 1.14 gm/c.c.', 'Elongation at break: 15 – 45%', 'Elasticity: Very good.', 'Moisture Regain (MR%): 3.5 – 5%', 'Resiliency: Good.', 'Melting point: 2150C.', 'Ability to protest friction: Excellent.']
1331248
Bridge substructure placement, clear height, profile grade, and aesthetics are the main factors in deciding the bridge type. When determining a structure type over water, there is an order of preference for most bridge sites.
1405102
These standards are as follows: typical roof truss spacing means that they are usually about 24 inches from centre – which means at the centre of one truss, there will be a two-foot gap, or twenty-four-inch gap, until the centre of the next truss.
178864
['No cracks or holes found in the bead.', 'The bead has uniform waves, width and height.', 'The finished product satisfies the design dimensions and has almost no distortion.', 'The welding meets the required strength.']
1079985
['Strength. Generally most of the building stones have high strength to resist the load coming on it. ... ', 'Durability. ... ', 'Hardness. ... ', 'Toughness. ... ', 'Specific Gravity. ... ', 'Porosity and Absorption. ... ', 'Dressing. ... ', 'Appearance.']
812559
Beam bridges are often only used for relatively short distances because, unlike truss bridges, they have no built in supports. The only supports are provided by piers. The farther apart its supports, the weaker a beam bridge gets. As a result, beam bridges rarely span more than 250 feet (80 m).
612024
The simplest beam bridge could be a log (see log bridge), a wood plank, or a stone slab (see clapper bridge) laid across a stream. Bridges designed for modern infrastructure will usually be constructed of steel or reinforced concrete, or a combination of both.
358465
Some of the main typical materials that are found on a bridge are steel, concrete, stone and asphalt. Other materials include iron, timber, aluminum, rubber and other joint materials.
1433523
The strengths of structural functionalism are that it can accurately model many aspects of society, and that it relates society to other topics of study. The weaknesses are that it does not pay as much attention to the harmful aspects of society as other theories do, such as conflict theory.
386670
['Lightweight & portable: About ¼ the weight of a tile roof, and roughly ½ the weight of asphalt shingles.', 'Durability: Metal roofing is highly resistant to hail and wind damage. ... ', 'Low-maintenance: Most metal roofing products require very little or no maintenance.']
1083626
['Light Weight. Aluminum is a very light metal with a specific weight of 2.7 g/cm3, about a third of that of steel. ... ', 'Corrosion Resistance. ... ', 'Electrical and Thermal Conductivity. ... ', 'Reflectivity. ... ', 'Ductility. ... ', 'Strength at Low Temperatures. ... ', 'Impermeable and Odorless. ... ', 'Non-magnetic.']
1132431
["The load's weight.", 'The height at which the load is being carried.', 'Any twisting/sideways bending.', 'Postural constraints.', 'Grip on the load.', 'Environmental factors.', 'Communication and co-ordination.']
1408356
A cantilever bridge differs from other bridges in that it is only anchored in place on one side instead of two. Often used when there is only one adjacent tooth to support the bridge, they are almost entirely as strong as their traditional counterparts.