When AESS structural elements are brought into close range for view as well as potentially for touch, it is necessary for the team to come to a clear understanding about the level of finish that is both required and expected of the steel. Overall the connection methods are simple variations of standard connections and do not result in excessive premiums. Flat plates have been used for the lap type hinge connections on the diagonal members, creating a degree of uniformity within the scheme. Square plates have been welded to the HSS members that provide surface for bolts on all sides of the connection to ensure a uniform appearance. In the Canadian War Museum there are exposed welded and bolted connections. The profiled decking is also left exposed to view. Due to the irregularity of the structure, tight tolerances are required. In this instance a combination of welded connections and exposed plate to plate moment connections at the connection points between square HSS sections is the feature of the appearance. The Canadian War Museum in Ottawa uses AESS to create a highly articulated and rugged expression in the steel in Regeneration Hall. This type of structure could be found in airports, shopping centres, hospitals or lobbies and could be expected to incur a moderate cost premium that could range from 60% to 150% over Standard Structural Steel as a function of the complexity and level of final finish desired. As this structure is normally viewed closer than six meters it might also frequently be subject to touch by the public, therefore warranting a smoother and more uniform finish and appearance. Tolerances must be tighter than normal standards. The welds should be generally smooth but visible and some grind marks would be acceptable. The Category would be suitable for "feature" elements – where the designer is comfortable allowing the viewer to see the art of metalworking. Architecturally Exposed Structural Steel The AESS Categories - AESS3 - Feature Elements (≤ 6m)ĪESS 3 – Feature Elements includes structures that will be viewed at a distance ≤ 6m.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |