Thursday, September 24, 2020

The pain of the HS

 its not what happens but how one learns from it

ways to make setup in autocad less painful for the next round.

To Do:

1)Master block file. 

-List font sizes

-List Layer names and colors

-Give Clear block names


2) Revit Export View Template

-make sure names of rooms ( on its own layer)

-area lines (turn off)


3) Make life easier:

-find a lisp way to do page number ( or label tabs to field pg number?)

-add/update same block across different cad files.

Sunday, September 6, 2020

Star News

 Bukit Batok published in Clementi-Jurong Town Council upgrade

https://ourneighbourhood.jrtc.org.sg/2019/07/new-and-improved-bukit-batok-neighbourhood-park-in-2020/

WFH #DRAINAGE

 Drainage at Slab:

-when estimating depth above slab for decking, walkway, planting. whether 150, 200mm, is related to 

-Length of run to the rwdp. Eg: length of slope ( eg 16m) to fall at gradient 1:200, will need min 80mm for slanting of screed, if it is a straight line.

-Summit point is usually 100mm below top level. thickness for scupper drain neeeded

- this allowance of depth also determines the ponding affect allows before flooding, and the intervals of rwdp needed. hence if too shallow depth, more rwdp is needed at closer intervals.

-for rwdp penetration, as it is usually along columns, note penetration through beam

-note on siphonic drainage. usually pipe is smaller, no need for gradient , but because of tournedo effect if it is a leafy area, twigs and leaves may affect it

-rwdp, estimated 150mm dia pipe covered 200m2 area of rain water

-Every vertical pipe needs a sump. BIG/HDB only allows one 1 penetration per beam

Drainage for site:

-M&E: in charge of IC invert level

-C&S:  in charge of MH invert  lvl

** when MH/IC is more than 1.5m height difference, need a M&E tumbling bay detail

Drainage Tanks: 2 main systems: gravity vs pump drainage system

There are many types of tanks, detention tanks, RW harvesting tank, storm water tank.

1)Firstly, note Rainwater---> Harvesting Tank--->overflow--->Detention Tank

Usage Harvesting Tank--->Treatment room--->water use to wash void decks. ( not irrigation)

*to note pipe length required to run to the void deck, unless 1 treatment rm per block?

Detention Tank requires 2 access hatch, for air ventilation

2)House Drains/ CE drains---> Detention Tank--->External drain

3)Stormwater Tank: is for capturing basement water. the detail is same as detention tank. Location is below MPL

* Do note that because it is in basement, requires a pump to bring the water out. A swan neck/goose neck is necessary as it prevents backflow as there is usually electricity from the pump

4)Tank depths:

If Tank is 3m deep, water quantity collected, is 2m, as 1 m for access

5) Rain Garden as a bio swale, contributes to the catchment of the site. Eg, Catchement of 25% is needed for Detention Tank,

Tuesday, September 1, 2020

Times of Covid. WFH

 Today is the 1st sept.

Will be working continuously at home for the next 1 month. sp 01/09-01/10

Some goals:

1) To study the HDB unit type prototype vs kyb proposed unit type.

-2rm in terms of 2RF1 and 2RF2

-3,4,5 rm

2)Do situps to get back 6 packs

3) Improve facial complexion

4)Leave fingernails to grow

1 month break

 was just trying to find how long before this pause. has it been 12 years? fukushima is 10 years. i prepared some lunch boxes. teared a bit....