How should the PKPM-GZ module be operated for simulation? Is it necessary to also arrange a layer of isolation bearings on the grid layer? Q4: Shock absorption model, calculated using the elastic time history analysis module.
Summary of questions: Q1: In the isolation calculation sheet, how to calculate the wind bearing capacity of the isolation layer and the design value of the yield load of the isolation support? Q2: PKPM-JZ damping model, with time history calculation checked in parameter settings, did the model report an error during operation? Q3: When designing isolation structures, for the lower concrete upper grid structure, the grid adopts rubber bearings.
Article 4.6.8 of the “Isolation Standard” stipulates that the wind resistance bearing capacity of the isolation layer should comply with the following formula: γ In the formula wVwk ≤ VRw, VRw – the design value of the wind resistance bearing capacity of the isolation layer (N).
The wind resistance bearing capacity of the isolation layer is composed of the yield strength of the wind resistance device and the isolation support, and is determined based on the yield strength design value; γ W – Partial coefficient of wind load, taken as 1.4; Vwk – Standard value of horizontal shear force of the isolation layer under wind load (N)
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Calculation of Wind Resistance Bearing Capacity of the Isolation Layer Answer: The PKPM-GZ module can fully support the relevant design of the “Building Isolation Design Standard” GB/T51408-2021 (hereinafter referred to as “Isolation Standard”) in the 21st version V1 series.
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The addition order of local seismic waves is different, and the calculation results are also different? Q5: When comparing the isolation models, does the periodic shear force calculated by the staggered isolation model differ significantly from the results of the equivalent same floor isolation model? Q1: In the isolation calculation sheet, how to calculate the wind resistance bearing capacity of the isolation layer and obtain the yield load design value of the isolation support? Figure 1.
