Structural Design of Traffic Signs

{This is a re-posting of commentary I originally posted in my state-of-play posts. I have given it its own post, so I can extend and revise as needed.} Now road signs are established technologies, there must be hundreds of them all over the world. We don’t expect them to fail, and certainly don’t expect them […]

Engineering Calculations and Approval

{This is a edited version of an email I sent this week (2019/week 14) attempting to explain nature of calculations and the approval of calculations. The problem I was attempting to deal with is the Queensland legislation. Being edited it has some client specific references removed, and also extends on what I was attempting to […]

Residential Slabs and Footings

For the most part residential slabs and footings shouldn’t require any “engineering”. AS2870 Residential slabs and footings is mostly a prescriptive code like volume 2 of the National Construction Code (NCC or BCA {Building Code of Australia} ), and the residential timber framing code AS1684.2. As such building designers, builders and concrete contractors should be […]

Design Guide for Attached Canopies

{Will provide notes here concerning the structural assessment of attaching a canopy to a building } Two basic forms: Canopy integral with the building and constructed at the same time as the building Canopy is a “tacked on after thought”, which is attached to the building after the building has been constructed. For residential buildings […]

Building a Structural (Engineering) Design eWorkbook – Part 8

Seems going to be a delay for a while, whilst make some major changes to the VBA code. Relative to existing workbooks the following are of importance: Workbook Design Engine The designEngine workbook has two user forms as illustrated here. The main form contains options to: Analyse gable frame (Kleinlogel Frame III) Produce Height vs […]

Building a Structural (Engineering) Design eWorkbook – Part 7

So taking a look at the workbook primary data tables. The table comprises of fields: group, description, block Name, value, units, edit field, editValue, CalcValue, isParameter. Block name, is carry over from Quattro Pro where group of cells referred to as a block rather than a range. In the main it is just the name […]

Building a Structural (Engineering) Design eWorkbook – Part 6

In part 5 I briefly covered classes, whilst in part 3 I covered the use of DBMS to store and retrieve data. One approach for the tables was a table with a record structure: characteristic, value, units, isParameter. For which purpose I wrote a function getCharacteristic and subroutine setCharacteristic to get and set the data […]

Building a Structural (Engineering) Design eWorkbook – Part 5

So in part 3 I made use of various DBMS to store input data and calculated results. the data stored in tables, each row of the table is a record and each column of each record is a field. High level programming languages allow data structures to be defined collecting all the fields together into a […]

Using Technical Library and Database for Cold-Formed Steel Design to AS4600

As I mentioned in Building a Structural (Engineering) Design eWorkbook – Part 4  a calculation of section and member moment capacity to AS4600 can be relatively simple, with my original illustration of such being presented here: On Calculations and Software Part 1. Using such technical library , and materials library, it is possible to generate simple member capacity tables […]

Building a Structural (Engineering) Design eWorkbook – Part 4

So as mentioned in state-of-play 2018/wk50  I got sidetracked using MSHTML to read data from html files, specifically the Chrome bookmarks file (the exported HTML not the main JSON formatted file). Also I started writing the state-of-play article on the thursday and got interrupted so completed today (19/12/2018). Now using VBScript doesn’t seem much of […]