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How to Evaluate Earth Quaked Damaged Concrete and Masonry Wall Buildings


Quiz Questions

1.Figure 2-2, Shows the characteristic of:
Bearing walls and infilled frames
Concrete and masonry wall buildings.
2. Figure 3-5 illustrates two possible inelastic lateral mechanisms for the same wall element.
True
False
3.The form in page 53 is an example of:
Component Damage Records
Building location sheet
4.Table 5-3 in page 80, shows the likelihood of earthquake damage to reinforced concrete wall component and behavior mode.
True
False
5.According to Chapter 5, section g. Flexure/Out-of- Plane wall Buckling; Thin wall sections responding in flexure may be prone to out-of-plane buckling, when subjected to cyclic flexural forces and displacements. For typical wall sections the buckling occurs only at high ductility levels.
True
False
6.Table 5-1 classifies Component types and descriptions for reinforced concrete walls.
True
False
7.According to Chapter 5, page 116, RC1A the criteria for insignificant damage are:

  1. No crack widths exceed 3/16 in., and
  2. No shear cracks exceed 1/8 in., and
  3. No significant spalling or vertical cracking
True
False
8.According to Chapter 5, RC1A the criteria for Slight Damage are:

  1. Crack widths do not exceed 1/4 in., and
  2. No shear cracks exceed 1/8 in., and
  3. No significant spalling or vertical cracking, and
  4. No buckled or fractured reinforcement, and
  5. No significant residual displacement.
True
False
9.According to Chapter 5, RC1A the criteria for Moderate Damage are:

  1. Spalling or vertical cracking (or incipient spalling as identified by sounding) occurs at toe regions in plastic hinge zone, typically limited to the cover concrete, and
  2. No buckled or fractured reinforcement, and 3- No significant residual displacement.
True
False
10.According to Chapter 6: Reinforced Masonry, RM1A; By observation; Damage in an RM1 component with a flexural response is likely to be localized in a zone with a vertical extent equal to approximately twice the length of the wall. Both horizontal and diagonal cracks of small size (< 0.05 in.) and uniform distribution may be present. Diagonal cracks typically propagate from horizontal, flexural cracks, and therefore have similar, regular spacing.
True
False
11.According to Chapter 6: Reinforced Masonry, RM1B;
By observation:
Damage in an RM1 component with a flexural /shear response is typically localized to the base of the wall, within the plastic hinge region. Both horizontal and diagonal cracks will be present, with diagonal cracks predominant. Diagonal cracks may appear to be independent from horizontal, flexural cracks, and may propagate across the major diagonal dimensions. At heavy damage levels, shear deformations are likely to be localized to one or two diagonal cracks of large width. If a permanent horizontal offset is visible, the behavior mode may be Flexure/Sliding Shear
True
False
12.According to Chapter 6: Reinforced Masonry, RM1B
By analysis:
Analysis of a wall with a Flexure / Shear behavior mode may be difficult, with no clear distinction between the controlling mechanism of flexure (deformation-controlled) or shear (force-controlled). Calculated capacities should be in the same range. Wall axial loads may be moderate-to-high.
True
False
13.Behavior Mode is; The predominant type of damage observed for a particular component. This is dependent on the relative magnitudes of the ratios of applied loads to component strength for axial, flexural and shearing actions.
True
False
14.Collapse Prevention is: A performance level whereby a building is extensively damaged, has little residual stiffness and strength, but remains standing; any other damage is acceptable.
True
False
15.Coupled wall is: A wall element in which vertical pier components are joined at one or more levels by horizontal spandrel components.
True
False
16.Life Safety is: A performance level whereby a building may experience extensive damage to structural and nonstructural components, but remains stable and has significant reserve capacity.
True
False
17.Infilled frame is: A concrete or steel frame with concrete or masonry panels installed between the beams and columns.
True
False
18.A structural analysis technique in which the structure is modeled as an assembly of components capable of nonlinear force deformation behavior, then subjected to a monotonically increasing lateral load in a specific pattern to generate a global force displacement capacity curve. The displacement demand is determined with a spectral representation of ground motion using one of several alternative methods.
True
False
19.Shear wall is: A concrete or masonry panel, connected to the adjacent floor system, that resists in-plane lateral loads.
True
False
20.Severity of damage is: The relative intensity of damage to a particular component classified as insignificant, slight, moderate, heavy, or extreme.
True
False