The effect was studied by varying one of the input parameters with respect to varying span-to-depth ratio mainly and all other parameters are set to constant values.
The first natural frequency and remaining load carrying capacity of the dome are monitored to define the desired empirical relationship, which is ultimately generalized for spherical domes with varying span-to-height ratios.
During QS-PST experiments, a flat punch of diameter 7.6-mm with a range of support spans 8.89 50.8-mm has been used to obtain varying support span to punch diameter ratios (i.e., SPR = DS/DP = 1.16, 1.33, 1.67, 2.00, 2.33, 2.67, etc).
During tests, a flat punch of diameter 7.6 mm with a range of support spans 8.89 mm–50.8 mm has been used and QS-PST experiments are carried out for varying support span to punch diameter ratios (i.e., SPR = 1.16, 1.33, 1.67, 2.00, 2.33, 2.67, etc).. Their damage mechanisms for different SPRs and thickness are documented.
Experimental program include static and cyclic tests on six sets of slab specimens subjected to six varying shear span 300, 375, 450, 525, 600, and 675 mm.
This is done by comparing pressure impulse curves corresponding to direct shear failure for one-way reinforced concrete slabs with varying depth, span and support conditions.
The validated model was used in a parametric study varying geometry (span, steel cross-section depth, diameter and pitch of the openings, concrete or composite slab), mechanical properties and loading conditions (line load only or combined to point-load).
To develop a further understanding, parametric studies were performed, varying the span-to-thickness ratio, height-to-span ratio, ring, member section, joint bending behaviour, joint stiffness model, material property, load distribution, support condition and initial geometric imperfection.
Table 2 shows the necessary parameters for plotting m k curve from the test data in accordance with varying shear spans of composite slabs.
The harvester is subjected to harmonic base excitations of different magnitudes and a slowly varying frequency spanning a wide band around the tuned oscillation frequency.
