CHECKPOLE v5.2.0 is now live and can be downloaded here. New features and enhancements include:
- Resolution of elevation points utilised for topography detection increased from 25 m increments to 10 m increments.
- AS/NZS 1170: Topographic feature midpoints (Lu) are now determined using interpolation, leading to more accurate site Topographic Multipliers (Mt).
- TIA-222-G/TIA-222-H: Topographic feature midpoints (Lh) are now determined using interpolation, leading to more accurate site Topographic Factors (Kzt).
- Define water level for topography detection near inland lakes and rivers with surface levels above mean sea level.
CHECKPOLE v5.1.0 is now live and can be downloaded here. New features and enhancements include:
- Now optimised as a 64-bit application (no more pesky System.OutOfMemoryException errors).
- Monopole openings can now be viewed in section and elevation.
- Improvements to Type 4 opening reinforcement.
- New automated Topographic Multiplier (Mt) detection algorithm to AS/NZS 1170 (more on that below).
- Users can now override Topographic Multiplier (Mt) values.
- Introduction of our own Basic Wind Speed maps to TIA-222-G and TIA-222-H.
- Improvements to automated Exposure Category (Kz) detection to TIA-222-G and TIA-222-H.
- New automated Topographic Factor (Kzt) detection algorithm to TIA-222-G and TIA-222-H based on Crown Castle and SEAW RSM-03 guidelines.
- Improvements to fatigue design to AASHTO 2013.
Topographic Multiplier (Mt) Detection Improvements
Until now, CHECKPOLE has used a combination of the 500 m segment criteria from the AS/NZS 1170.2 commentary (though with a “rolling” 500 m segment instead of less accurate 500 m increments from the crest suggested by AS/NZS 1170.2), in addition to our own local minimum criteria to determine the base of a feature.
Figure 1: AS/NZS 1170.2 C4.4.2
However, the problem with utilising the local minimum criteria is that the base might be determined as being at the bottom of a valley with a steep slope for certain terrain, leading to overly conservative Mt values, as shown in Figure 2.
Figure 2: CHECKPOLE v5.0.7 results
The local minimum criteria was intended to avoid situations where the 500 m segment might identify the “base” as being halfway up/down a slope, which seemed counter intuitive. Regardless, we’ve adjusted the algorithm and removed the local minimum criteria and now rely solely on the 500 m segment method. This has led to an overall reduction in Mt values across all of our test sites, as shown in Figure 3.
Figure 3: CHECKPOLE v5.1.0 results
CHECKPOLE v3.1.0 is now live and can be downloaded here. This update was focused on improving the user experience and bringing wind analysis functionality in line with our recently released CHECKWIND software. New features and enhancements include:
- Automatically determine Annual Recurrence Intervals based on Structure Importance Level and Design Life.
- Connection components failing geometry checks highlighted in red.
- Improved area load wizards.
- Improved Shielding Multiplier (Ms) wizard.
- Improved accuracy of elastic critical buckling loads, which until now have been slightly conservative.
- Improved connection design resulting in more economical designs.
- Improved summary and detailed reporting.
- Improved Rocla Proforma exporting based on the worst case wind direction.
- Export design parameters to drive CAD applications such as AutoCAD, Inventor and Navisworks.
- Improved error reporting.
- Function to Reset Application Settings in case of corrupted user settings.