Definition A two-way floor system consisting of a reinforced concrete slab poured with integral ribs in two directions beneath it. The system has a waffle-like pattern when viewed from below. The waffle "holes" are formed by square polystyrene pods. The pods are formwork, not structure. They form the ribs and then they stay there because it is cheaper to leave them than … [Read more...] about Waffle Pod Slabs (AS 2870): Notes for the Drafter
Drafting Standards
Time it takes to complete structural drawings
An average guide to how long it takes to produce a single structural drawing. Some take longer, some less. A theory put forward by YZ, who works in the Sydney structural drafting industry, 6-5-2007 Applies to large and medium size structural projects in Australia. Includes document control time and meetings to discuss design etc. Time to complete chart - Structural … [Read more...] about Time it takes to complete structural drawings
Steel Shapes and Sizes: American W and HP Profiles
This information applies to the American Steel Industry W shapes have essentially parallel flange surfaces. The profile of a W shape of a given nominal depth and weight available from different producers is essentially the same except for the size of fillets between the web and flange. HP bearing pile shapes have essentially parallel flange surfaces and equal web and … [Read more...] about Steel Shapes and Sizes: American W and HP Profiles
Shop Drawing Checking Guide for Steel Detailers
A Shop Detailers check list to checking workshop drawings. Written by YZ Why is steel shop drawing checking important? The "buck stops" at steel shop drawings. Steel shop drawings cannot be interpreted, as working drawings are. They are specialized, precise, instructions to the fabricator. Checking is therefore very important, as the entire building geometry is … [Read more...] about Shop Drawing Checking Guide for Steel Detailers
Concrete Joint Abbreviations and Linetypes on Drawings
By YZFor my concrete plan and elevations what lines and codes should I use for concrete joints? Joints can be shown as follows:Joint typeAbbreviationLinetypeConstruction joint—generalCJConstruction joint—straightCJ(S)Construction joint—dowelledDCJConstruction joint—keyedKCJIsolation jointIJContraction joints—keyedKJContraction joints—dowelledDJContraction joints—sawn or … [Read more...] about Concrete Joint Abbreviations and Linetypes on Drawings
Steel Member Designations: UB, UC, WB, WC and PFC
By YZ Are you looking to find what the UB means in a 310UB40, how about CT in a 155CT79 steel columns? The table below outlines the commonly used designations for steel members in Australia and New Zealand. Section typeMaterial standard Abbreviation Typical example of designationWelded beam AS/NZS 3679.2WB700WB115, … [Read more...] about Steel Member Designations: UB, UC, WB, WC and PFC