Posts Tagged ralph freeman
Can someone help me out here with a question for my homework, The question above, is the question. (Lol, don't worry if it's confusing).
I just want to know who got credited for designing the bridge (i think it's dorman long), and where do we still see his name??
Thanks to all for all your help!
I know that it was constructed as an arch bridge but its for an history assignment and it says that it needs to be given in detail
anything is appreciated, thanks!
In 1923, 800 homes and a high school campus were demolished in preparation for construction. The owners of these homes received compensation, but their occupants did not.
The building of the bridge was under the management of Bradfield. Three other people were involved in the bridge's design and construction: Laurence Ennis, the engineer-in-charge at Dorman Long and Co was the main supervisor (Bradfield visited occasionally throughout the project and, in particular, at the many key stages of the project, to inspect progress and make managerial decisions); Edward Judge was chief technical engineer of Dorman Long and later became president of the British Iron and Steel Federation; Sir Ralph Freeman was hired by the company to design the accepted model in further detail. later a bitter disagreement broke out between Bradfield and Freeman as to who actually designed the bridge. another name connected with the bridge's design is that of Arthur Plunkett.
The official ceremony to mark the "turning of the first sod" occurred on 28 July 1923. This was followed by the building of two worksheds at Milsons Point to assist in building the bridge—the light and heavy workshops. their purpose was to build the bridge's many parts. In January 1925, the excavations to build the abutments and approach spans began. In October 1925, the building of the abutments and approach spans themselves began, and these were completed in September 1928. Construction of the bridge itself began in December 1928, with the construction of the bridge parts in the workshops.
Construction of the arch of the bridge began in 1929, with two separate teams building the arch on each side using creeper cranes. The first panel was erected on the southern side in March 1929. The southern end of the bridge was worked on a month ahead of the northern end, in order to detect any errors and to ensure that they did not happen on the northern side.
During construction, the two halves of the arch were held up by numerous support cables. Once the arch halves were completed the cables were slowly released to bring the two halves of the arch together. This was finalised on the afternoon of 19 August 1930. Ennis and four associates personally witnessed this whilst standing on top of the bridge. following a parting that occurred due to the contraction of metal in the evening, the ends were rejoined at 10 pm, and have remained joined since then. The support cables were then surplus to the design and removed. They were subsequently used as support cables for the Walter Taylor Bridge, over the Brisbane River in the western suburbs of Brisbane, Queensland.
The road and the two sets of tram and railway tracks were completed in 1931. Power and telephone lines, and water, gas and drainage pipes were also all added to the bridge in that year. On 19 January 1932, the first test train, a steam locomotive, safely crossed the bridge. About 90 others also crossed the bridge in the months that followed as part of a series of tests to ensure the bridge's safety.
The construction worksheds were demolished after the bridge was completed, and the land that they were on is now occupied by Luna Park and the North Sydney Swimming Pool.
The standards of industrial safety during construction were poor by today's standards. Sixteen workers died during construction, but surprisingly only two from falling off the bridge. several more were injured from unsafe working practices undertaken whilst heating and inserting its rivets, and deafness experienced by many of the workers in later years was blamed on the project.
The total financial cost of the bridge was $10 million (double the original quote). This was not paid off in full until 1988.