The cantilevered Forth Bridge (1890) in Scotland was the first major structure built entirely of steel, the material that made possible its two record-setting spans of 1,710 ft (521 m) each. They remained the longest in existence until 1917, when the St. Lawrence River at Quebec Bridge ...
the cross section of the element is divided into a number of concrete layers, and the material properties are assumed to be constant in each layer. Instead of modelling the reinforcing bars separately, the reinforcements are treated as equivalent smeared reinforcing layers and integrated into the co...
At the end of the 18th century, the École Nationale des Ponts et Chaussées in Paris introduced many technical innovations: shoulder piles were abandoned, and arches were designed and built directly over the full river level. The Concordia Bridge in Paris is a typical example of this structu...
By September 1926, concrete piers to support the approaches and spans on each side of the harbor were in place.STRUCTUREThe bridge’s southern end is at Dawes Point in The Rocks, and its northern end is at Milsons Point on the lower North Shore. The main roadway has six original lanes ...
36. A modular structural section as defined in claim 31, wherein each of said flanges is configured to be positioned on and supported by at least one support member, 37. A method of constructing a support structure comprising: providing at least one support member having a predetermined cont...
(1) can also be decomposed into nearest-neighbor loops as each term of Eq. (1) can be decomposed in the same manner. Therefore, we can efficiently calculate an optimal secondary structure that maximizes the scoring function (Eq.1) using the Zuker-style dynamic programming (DP) algorithm5. ...
After conversion to the chosen functional unit, every square meter of Adohi Hall, built during the construction phase, was found to release 173 kg of CO2 eq emissions into the atmosphere. The data presented in Figure 5 highlight the carbon emissions associated with the equipment’s operations ...
This subsonic flow is reaccelerated to supersonic speed by the expansion fan at the end of the pin tips. A weak shock wave enters the flow field in the bottom left corner of Figure 6b, which is created by a small step on the bottom wall. Since this step is 25–50 μm high, ...
Hi there , I noticed this crack this week. It is new construction and the foundation was built 4 weeks ago. The height of foundation wall is apprx. 6 feet and the foundation is filled in with dirt and already has a slab on top. the foundation wall is filled with concrete all the wa...
the structure comprises a plurality of piers bearing on the foundations, the cross-beam bearing on said plurality of piers, and the reinforcement apparatus comprises, for each pier the cross-beam is bearing on, a column destined to surround said pier at least partly, to be mechanically coupled...