Christchurch Earthquake | 2011 | New Zealand, Earthquake Engineering
Christchurch Earthquake | 2011 | New Zealand

Masonry Structures

The seismic behavior of unreinforced masonry structures is generally less favorable than that of reinforced concrete structures. Masonry structures are primarily designed to accommodate vertical loads, which are derived primarily through pressure forces into the subsoil. But in case of horizontal and dynamic loads such as wind or earthquakes, also tensile stress occurs that can lead to cracks in the masonry and finally to failure.


The following services are offered in the masonry structures division:


Seismic assessment of existing buildings by BWG respectively, FOEN level 3 with linear and nonlinear static calculations:

  1. "in-plane" behavior
  2. "out-of-plane" behavior
e.g. Seismic retrofitting of towers in Pavia, Italy
e.g. Seismic retrofitting of towers in Pavia, Italy

Development of seismic retrofit concepts

  1. Possible strategies and techniques
  2. Design of seismic retrofit measures

Computation of floor response spectra with

  1. SAP2000, RUAUMOKO

Design of reinforced/unreinforced masonry structures, confined masonry structures and masonry infills in frame

  1. Building projects
  2. Remodelling of buildings

Assessment and design according to the following codes:

  1. USA; ASCE / SEI 41-06, FEMA 356
  2. Canada; S304.1-04
  3. Australia; AS 3700, AS 3826
  4. New Zealand; NZS 1170
  5. Europe; EC 6, EC 8
  6. Italy; NTC 08
  7. Switzerland; SIA 266, SIA 269/6, SIA 269/8, SIA 2018