Sample Project

Material

  1. Mortar f’c = 200 kg/cm2
  2. Elasticity module for wall mortar = 113,000 kg/cm2
  3. Poisson Module = 0.2
  4. Concrete f’c = 200 kg/cm2
  5. Lasticity module for concrete = 113,000 kg/cm2
  6. Poisson module = 0.2
  7. Reinforcing steel fy = 5,000 kg/cm2
  8. Elasticity module = 2’100,000 kg/cm2
  9. Poisson module= 0.30

Seismic Information

  1. Civil Project Manua from the CFE published the seismic diseign 1993
  2. Importance group B
  3. Geo-seismic zone B
  4. Ground Type II
  5. Regular configuration
  6. Seismic Behaviour factor in the direction of X Qx = 1.5
  7. Seismic Behaviour factor in the direction of Y Qy = 1.5

Floor BluePrint

first-floor
WALTECH FINAL

Destination and Charges of Structure

  1. Domestic Housing
  2. Live charges
  3. The weight of the structure itself
  4. Seismic weight (Seismic loads obtained from the static seismic analysis)

Type of Analysis Used

  1. Lineal Elasticity Analysis
  2. Seismic static analysis

To carry out the system analysis, diverse modules were carried using analysis
techniques such as the ones indication on the Detailed Masonry Method and matrix methods based on the Finite Elements Techniques (FEM). The intention in using the Detailed Masonry Method is find, with other information, the participation of seismic forces on each wall. With the Matrix method (FEM) the distribution and flow of forces in the panels was analyzed likewise with the revision of the forces on the connections.

WALTECH FINAL

Seismic forces obtained with different types of soil and only one floor, this is only with the WallTech System.

WALTECH FINAL

Seismic forces with different types of soil and with two levels, this is with the WALLTECH system used on the first floor and the traditional system used on the second floor.

The mathematical matrix models simulate the behavior of the panels through plates of 6 degrees of freedom for each knot, in such a way that the mechanical elements and forces on the interested zones can be obtained. Using Gauchy’s convention of signs. Matrix models allow us to see the effort distribution on walls and foundation. To distribute the seismic shear stress master knots were used for the application of seismic eccentricities. The second level was also modelled with a different material than the panels with  masonry mechanical properties. Even though the elastic/lineal material is considered, tensions levels that can be appreciated will provide us with hints of where to put special care on revisions and reinforcements. These models are made out of 4093 shell elements and 4067 nots with a 20177 degrees of freedom.

Comparison with Traditional Systems

Weight

WALLTECH weight Comparison Against Traditional Systems

  1. Total weight for the first floor using the WALLTECH system (Walls only): 10.40 tons
  2. Approximate weight for the first floor using traditional system (Walls only): 20 tons

Weight Relation W/T=0.52

Vertical Load

WALLTECH Vertical Load Comparison Against Traditional Systems

  1. Maximum calculated vertical load capacity for the WALLTECH system: 25.92 tons./panel
  2. Max. calculated vertical load capacity for traditional systems: 7.80 tons/wall(with similar dimensions)

Resistance Relation W/T = 3.32

SOLICITATION

  1. Max Solicitation/wall resistance Relation for WALLTECH system (vertical loads): S/R = 0.16
  2. Max Solicitation/wall resistance Relation for regular masonry system (vertical loads): S/R = 0.21
  3. Max Solicitation/wall resistance Relation for WALLTECH system (side loads): S/R = 0.56
  4. Max Solicitation/wall resistance Relation for regular masonry system (side loads): S/R=0.58

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