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CONCEPT ON POSITIONING OF COLUMNS AIM- TO STUDY THE CONCEPT OF POSITIONING OF COLUMN OBJECTIVE - To understand the impact of vertical and horizontal members on the seismic behavior of a structure To understand different irregularities in a building. Question 1: Comment on the layout of the framing plan concerning…
Aditya Bhute
updated on 11 Oct 2022
CONCEPT ON POSITIONING OF COLUMNS
AIM-
TO STUDY THE CONCEPT OF POSITIONING OF COLUMN
OBJECTIVE -
Question 1:
Comment on the layout of the framing plan concerning earthquake resistance in the two horizontal directions X or Y (dots are columns, and lines depict beams). Look into aspects of symmetry, redundancy, and bi-directional stiffness and ductility.
SYMMETRY -
REDUNDANCY
BI-DIRECTIONAL STIFFNESS
DUCTILITY-
Question 2:
What are the possible sources of irregularity in the building shown here? Explain how, as an engineer, each of these irregularities should be dealt with.
Question 3:
A 4-story hotel building has an open ground floor for the restaurant. Story 2 to 4 has one row of rooms along each long side in the plan, separated by a corridor. The two short sides of the perimeter are fully in-filled in all stories, except for certain openings at the ends of the corridor at stories 2 to 4 and along the right-hand side of the ground floor. There is a staircase near the upper left-hand corner, with straight flights between landings at floor levels and in-between floors. Cross-section dimensions are written next to the member no. in meters.
Comment on the structural design features and the layout of infills, which are important for earthquake resistance and seismic performance. How do they relate to the almost full collapse of this building (the extreme left-hand bay with the staircase survived, as well as one long-side façade in the rear end, and the frame along the right-hand side in plan)?
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