“Aps” is the area of pre-stressing tendons in tension zone. (Code of Practice for Structural Use of Concrete 2013 – 2.1.1 Aim of design).

Window, a framed glazing in an opening of an external wall to allow natural light and/or ventilation through the building. (Code of Practice for the Structural Use of Glass 2018 – 1.3 Glossary of terms and definitions).

Ultimate bearing capacity. The value of the loading intensity for a particular foundation at which the resistance of the bearing stratum becomes fully mobilized or undergoes substantial deformation. (Code of Practice for foundations 2017 – 1.2 Glossary).

Topography Factor, In the Code, the guidelines on topographic effect are adopted from the Standard method of BS6399 – Part 2, the speed-up effect incorporates an altitude factor, which is one of the many factors to be multiplied to the basic wind speed to arrive at the site wind speed.

Heat-strengthened glass, glass which has been heated past its softening point and chilled rapidly to increase its strength. It breaks like annealed glass. (Code of Practice for the Structural Use of Glass 2018 – 1.3 Glossary of terms and condition).

Increase the total mass. In order to achieve concrete of equal strength at 28 days, depending on the combination used. (Code of Practice for Structural Use of Concrete 2013 – Chapter 4 Durability and fire resistance).

Claddings shall include aluminum or metal cladding, polished granite slabs or limestone cladding, marble facing and their fixings. Finishes shall include in-situ finishes (e.g. plaster, screeds), pre-fabricated wall-panel finishes, suspended ceilings, timber and other floor finishes. (Code of Practice for Dead and Imposed Loads 2011 – 2.2 Determination of dead loads).

100 m is the height above site-ground level of the design wind pressure qz (kPa) of 2.86. This is for intermediate values of height, linear interpolation is permitted. (Code of Practice on Wind Effects in Hong Kong 2004 – 4 – Design wind pressure Table 1).

1.2 Load factor in Yard handling of recommended equivalent load factors to account for dynamic forces arising during handling, transportation and erection. (Code of Practice for Precast Concrete Construction 2016 – 2.5.3 Handling and Transportation – Table 2.2).

Safety glass, glass or glass assemblies that are “break safe” such as laminated or tempered glass. (Code of practice for structural use of glass 2018 – 1.3 Glossary of Terms and Definitions).

Laminated glass, assembly consisting of two or more panes of glass that are bonded together by inter layer material. (Code of practice for structural use of glass 2018 – 1.3 Glossary of Terms and Definitions).

Cover against corrosion, the cover required to protect the reinforcement against corrosion depends on the exposure conditions and the quality of the concrete as placed and cured immediately surrounding reinforcement. (Code of Practice for Structural Use of Concrete 2013 – Chapter 4 Durability and fire resistance – 4.2.3 Cover).

Elastic critical load, load at which perfect element or structure becomes elastically unstable. (Code of practice for the structural use of steel 2011 – 1.4.3 Structural behavior definitions).

If wind load does not govern, stability should be checked for a minimum notional horizontal force acting at each floor level equals to 1.5% of the characteristic dead load between mid-heights of the story under and above or the roof surface. (Code of Practice for Precast Concrete Construction 2016 – 2.3.1 Stability – General).

Sub-frame part of a larger frame segment a portion of the length of a member, between adjacent points that are laterally restrained. (Code of practice for the structural use of steel 2011 – 1.4.2 Structural element definitions).

Glass annealed glass, ordinary float glass commonly manufactured by floating the molten glass on a bed of molten tin until it sets. It can be cut by scoring and snapping. It will break into large fragments with sharp edges. (Code of Practice for the Structural Use of Glass 2018 – 1.3 Glossary of terms and condition).

Increase the total mass. In order to achieve concrete of equal strength at 28 days, depending on the combination used. (Code of Practice for Structural Use of Concrete 2013 – Durability and fire resistance – 4.2.5.5 Use of pulverized-fuel ash (pfa) and ground granulated blast furnace slag (ggbs)).

A, B and C are all used in building and street works. (Building (Construction) Regulations – Part I – Regulation 3).

Adequate horizontal restraints in at least 2 directions shall be provided to individual piles or pile caps. (Building (Construction) Regulations – Part IV – Regulation 27).

4 days is the minimum period before formwork may be removed in Soffit formwork to slabs with props left in. (Building (Construction) Regulations – Part XII – Regulation 62).