Q12.6: In the wall member section, figure 3 states that the maximum wall member dimensions are 3″ x 0.1″ x 11″, and also states in the paragraph above that the member has to fit in a box with these dimensions. Does that mean a wall member can 3″ as it states in figure 3, or it has to be less than 3″?
A: The wall member can be a maximum of 3” as shown in Figure 3 of the Design Guide.
Q8.5: Our team is wondering what specific Butterworth Filter parameters will be used to process the raw accelerometer data at the competition? Ex. What order, low/high frequencies will be used to filter the data?
A: A suitable low pass filter to remove noise from the obtained data will be used. The filter is calibrated based on the shake table and the same post processing will be used for all the teams.
Q8.6: We are requesting for the names of the earthquake records associated with the ground motions (GM1 and GM2) and if possible, also the names of the station at which they were recorded.
A: The ground motions are artificial and not based on an actual earthquake event, therefore they do not have a corresponding recording station. The ground motions are based on the geographic location and the structural response of this year’s design challenge.
Q7.11: According to Section 7.4d, there are no restrictions on the length of the faying surface in connections between wall members. However, it remains unclear whether there is a faying surface limit when gluing wall members to frame members. For example, is it permissible to glue a frame member to the wall member along its entire vertical length?
A: Any member glued to a wall must meet the requirements of Section 7.4a. The glue can only be present at the fraying surface of the individual members. For example, the section states: “any members in contact must have glue between the faying surfaces of the two members.” In addition, “excess glue must be confined […]
Q12.2: For the steel angles that will be clamped with the base plate and shake table in figure 17 of the design guide, will we have to provide the angles ourselves or will it be provided during the competition?
A: The teams don’t have to bring the steel angles. The SDC organizing committee will provide them.