The constructability of this building will be done, which includes the sitework The WritePass Journal

The constructability of this building will be done, which includes the sitework Introduction The constructability of this building will be done, which includes the sitework Introduction In this section, a complete review of the constructability of this building will be done, which includes the sitework, site utilities, building foundations, connections, structural frame, precast units and so on. 1. Sitework In this case, the site logistics have been allocated and defined by different colours, also there is a sufficient area for their use (Fig.1). In addition, there are underground utilities such as cable, pipes, or for drainage water, which usually put in the trench. The drainage system has to be install early to support collect the rainfall. Shoring is used for the structure of building and trench to avoid the collapse or falling during the construction process. In the early phase, Backhoes are suitably used for excavating trenches and basement, which own a shorter arm rather than Backacter.  Ã‚  In this period, the side slopes of the excavation should be taken into account. In this case, the building has shallow foundations which typically less than 2m deep. Therefore, shallow and sloping excavations are worked out, and the backhoes are accepted. By considering the site balance, there are two areas of the stockpile to ensure the enough space for stuff even the excess. Furthermore, the landscape soil should be compacted sufficiently. Recompaction would be needed if the soil was loose or bad weather had caused it to loosen. And the retaining walls would be needed before the foundation constructed. 2. Building foundations The conflicts between foundations and underground work should be avoided.  Ã‚  In terms of this building where located in an exposed coastal place, which means every five-year period the chloride content would increase 0.5% on the outer 50mm of concrete. Thus, the foundation should be able to prevent the water and chloride corrosion. In addition, there should be some barriers and warning board to avoid people close to the large vaults, or fall into the pits and holes and so on. 3. Structural steelwork During construction, if the structural steelwork is not related to other construction elements, a temporary bracing system would be necessary to supply more stability for the structure. Actually, there are rarely failures in structural element, the majority of failures occur in the poorly restrained connections. The two ways of connecting construction elements are bolting and welding respectively. Through comparing both types of connections, welded connections would be installed rapidly and much easier than bolted connections. By welding, the construction elements often have a few holes. It makes the program is processing quickly as well. On the other hand, bolted connections also have several advantages. Bolted connections are safer and more flexible than welded connections. Take account of the building, I prefer to use both of them. A beam to column connection is such an example. The plate that is connected to beams by bolted connections could become simple when the plate welded onto the column beforehand. Precast concrete units The shoring formwork that located around the edge concrete is used for preventing any falls. The topping that is on the precast concrete units can not only provide a level surface of the floor, but also increase the strength slightly. It also supplies a protection of precast concrete floor and the steel bar inside.