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Meeting the requirements of the Building Regulations – dwellings
Published in Ray Tricker, Samantha Alford, Building Regulations in Brief, 2022
The ground floor of a building may be made of solid concrete or suspended timber type. With a concrete floor, a damp-proof membrane is laid between walls. The term ‘above ground level’ in relation to a storey means above ground level when measured from the lowest ground level adjoining the outside of a building to the top of the floor surface of the storey.
Parametric design of diagrid tall buildings regarding structural efficiency
Published in Architectural Science Review, 2020
Amirreza Ardekani, I. Dabbaghchian, M. Alaghmandan, M. Golabchi, S. M. Hosseini, S. R. Mirghaderi
The significance of the effects of lateral loads (earthquake and wind loads) on the structure of tall buildings is to the extent that lateral loads are the governing loads rather than gravity loads. From the structural viewpoint, a tall building can be seen as a multi-story construction in which the effects of horizontal actions and the need to limit the relative displacements take on primary importance (Taranath 2004, 2016). Regarding the high flexibility of tall buildings and considerable lateral deflections especially in high floors, the stiffness of the structure of tall buildings controls the structural design primarily rather than the strength of materials (Moon 2012). In the case where the structure’s height increases, rigidity and stability requirements become more important and eventually become the governing design factor (Carpinter et al. 2012). Thus, the more the stiffed structural systems, the more efficiency, in recent years. A recent classification of the structural systems of tall buildings is presented in (Ali and Moon 2007, 2018).
Modelling and Seismic Response Analysis of Italian Code-Conforming Base-Isolated Buildings
Published in Journal of Earthquake Engineering, 2018
L. Ragni, D. Cardone, N. Conte, A. Dall’Asta, A. Di Cesare, A. Flora, G. Leccese, F. Micozzi, C. Ponzo
The building selected is for residential use [ReLUIS-RINTC, 2018; Terrenzi et al., 2018]. The RC frame superstructure is characterized by a regular plan of approximately 240 square meters with 6 storeys. The storey height is equal to 3.05m except for the ground level, which is 3.4m. The staircase is part of the building structure and has been designed using knee beams. All the storeys have the same slab with 25cm of total thickness (including hollow bricks). Fig. 1 shows a typical plan of the structure. Infill panels have been considered distributed regularly in plan and elevation, with different percentages of openings. In particular, infills have been considered just as dead load in the design process, while they have been included as nonlinear elements in the model for time-history analyses. The elastic response spectra of the selected sites (i.e. L’Aquila and Naples) are reported in Fig. 2 and refer to the soil type C, which is the most serious condition for base-isolated structures.
Seismic response of randomly infilled reinforced concrete frames with soft ground storey
Published in Australian Journal of Civil Engineering, 2020
Taskin Alam, Khan Mahmud Amanat
Based on the results presented in Table 4, it can be said that the magnification factor of 2.5 as proposed in the NBCI (2005) may be an oversimplification. Height of the building (i.e. number of storeys) and the amount of structurally active infill in the building must be taken into account. It is also observed that magnification factor continues to increase till 12-storey frame. For frame higher than 12-storeys, the rate of increase in magnification factor is not very significant. Table 4 may act as guide to estimate the magnification of base shear for buildings with soft ground storey.