Based on the Australian code, ultimate wind speed is V500 = 45m/s (Region A) and the serviceability wind speed is V25 = 37m/s (Region A).
I wonder if a roof structure is only allow to operate when the wind speed is 30m/s. So what is the serviceability wind speed to be used for serviceability...
I have to design footing for a residential 2 storey building with timber floor and roof. The external wall is 150 thick RC wall. The non load bearing internal wall is timber stud wall.
The ground floor is 1m above the ground.
The geotechnical report show that the uncontrolled fill (sandy clay)...
An owner want to build a one storey house above the existing swimming pool.
Small part on the top of swimming pool will be demolished. The owner want to keep the swimming pool base slab (150mm-200mm thick).
New ground floor of reinforced concrete (RC) suspended slab will be supported by the RC...
My friend ask me to review a structural drawing of 3 storey residential concrete building.
The building structure include reinforced concrete (RC) column, wall and suspended RC slab (200mm thick) for each storey.
The applied load for suspended concrete slab design include self weight, imposed...
I review the drawings for footing construction of a residential building. The strip footing/piers o shale was designed. The piers were 2.5m spaced and strip footings are spaced at 6m max. to support brick walls above. The concrete slab on ground is 150mm thick with 2 layer of steel reinforcement...
I need to estimate the downstream flood level for the OSD calculation (see the attachment at OSD calculation part).
It's Parramatta in Australia. If I am not wrong, we need flood map from council to work out level ...
I know some codes from different country similar.
In Australian code AS1170.4 Section 5.4.2.1 say: "For structural components and footings that participate in resisting horizontal earthquake forces in both major axes of the structure, the effects of two directions determined separately shall be...
I need an explanation of
AS1170.4 Section 5.4.2.1 say: "For structural components and footings that participate in resisting horizontal earthquake forces in both major axes of the structure, the effects of two directions determined separately shall be added by taking 100% of the horizontal...
For OSD (Onsite stormwater detention) calculation, I am not sure how to estimate the downstream flood level for 1.5 year and 100 year flood level.
Thanks
Hi
I am modelling a 6 storey building using Etab (21m high). I modelled the stair walls and core walls using wall pier and spandrel around the openings to take vertical and lateral load (wind and earth).
Please see the attachment for the load applied on the wall pier at Level 1. The moment...
Just some question about the way to input load and material.
-Can I input many different concrete material into Etab such as 25MPa, 0MPa,40MPa and 50MPa concrete and steel and timber ? It look like Etab default only 1 concrete and 2 steel materials only. I cannot add more material.
-Can I input...
I am using Etab 13 at the moment. My questions:
- Can I obtain UDL reaction from wall (KN/m)? And How ?
- Shell/plate element moment unit = KNm/m. Can I take integral to obtain the moment for a specific width ? And How ?
- When the wall designed as deep beam. It will be modelled as spandrel or...
I have to do the calculate of hydraulics gradient lines (HGL)to show that enough hydraulics head to discharge water runoff by charge system to street gutter via existing stormwater outlet. Note that the new stormwater pipe of the new extension is connected to the existing stormwater system of...
I am design the concrete slab on ground supported by strip footings. The soil is high reactive. The slab is an L shape of 23m x 12m x 6m wide approximately (see below).
Should I provide the slab expansion joint along the dotted line and double strip footing under ?
The masonry walls are...
I try to design the RC slab and footing located on an existing slab on ground. This is 1 storey residential bld.
As the soil is high reactive and the owner doesn't want to remove the existing slab as much as possible to save the cost.
The new slab will be located above the existing slab on...
The building was built in 1960s. The suspended slab is 140 thick and the areas near to the balcony was damaged becuase of magnesite flooring. About 50-80mm top of slab were excavated to eliminate magnesite. Top steel bars were exposed in living room and top steel bars in the kitchen were cut...
I've designed a car port. The Pad Footing is ended up 3m x 3m x 0.6m thick (10ft x 10ft x 24' thick). The geotechnical report show that the bored hole is stopped at 1m from natural ground level. If I use bored pile, I can end up with 600 diameter (24' diameter) and 1.5m long (5ft long). That...
