# Structural Analysis, Finite Difference Method, Pythonista, and Plotly Oct 2020

Beam Problem — Hand Calculation PDF LINK — beam analysis — hand calculations The 5 page calculation in the PDF was done in 1983. The quidiagonal matrix solution was probably done with an HP-41 calculator program. Beam Problem — Plotly Graph LIVE LINK to HTML PAGE — using Plotly The Plotly graph shows deflections, shears, […]

# Multi-Page Apps using Dash/PythonAnywhere Apr2020

AISC Strong Axis Bending https://khoitsma1.pythonanywhere.com/apps/app2 Replaces 45 pages in AISC 15th Manual Graphical and tabular data Change the shape selection (HP12, for instance) Hover over the chart data points AISC Filtered Shape Properties https://khoitsma1.pythonanywhere.com/apps/app3 All properties for a user’s selection (2L4X3X3/8X3/4SLBB , for instance) Just start typing 2L4 and the drop down will filter to […]

# Structural Property Calculator — Improved Dec 2019

# calc> ddet(..w8x31) # not case sensitive 8.0 # # On assignment, now, the calculator # returns __str__(object) # the string representation of the object # # Therefore, # On assignment of an AISC shape the calculator # returns __str__(shape) # the string representation of the shape # calc > a = ..w8x31 # not […]

# Structural Property Calculator on iPad/iPhone using Pythonista Oct 2019

# General use as a numerical calculator calc > a = 3 calc > b = 4 calc > c=(a**2+b**2)**0.5 # white space does not matter calc > a 3.0 calc > b 4.0 calc > c 5.0 calc > 5 + (30 * 3 ** 2) – 23/46 274.5 # Use with structural properties […]

# ASCE 7-16 Kzt Calculation — with Chart Jul 2019

ESC = 2D Escarpment R2D = 2D Ridge H3D = 3D Hill

# Interface — Easier Slider Access Jul 2019

One slider at a time: On the left side of the screen is a column of labels, Precisely under each label is an invisible button, The invisible button responds to a tap by the user, In response, a single slider is activated, Clear and intuitive! See screenshot sequence below Use the GESTURE DOWN swipe to […]

# AISC Bolt Shear Capacity — Improved UI Jun 2019

Better UI feedback, for: Last altered slider – label font is red All other altered sliders – label font is blue Unaltered sliders – label font is black Changed text for CHART button Added SCREENSHOT button Added RESET button

# AISC Bolt Shear Capacity (with video) Jun 2019

See updated UI. See VIDEO link. Works on iPhone or iPad Added ‘choice lists’ to the custom augmented slider class For example, the AISC hole type selection is based on a ‘choice list’. The charts are live overlays Plots capacity of all plates where 0.25″ <= PL_THK <= 2″ See whats-on-the-pythonista-menu-yep-sliders link. See sliders-in-pythonista link. […]