STRUCTURAL CONCEPT Cityland MART VPKC3 - VNCC

Soil Condition Piling Foundation Framing options Span length Steel Structure Loading Codes RFI to Clients

SOIL CONDITION Clay WEAK 40m depth

PILING Bored Pile Jacking Pile R.C pile P.C pile

CALCULATION MODEL

PILING

PILING Bored Pile D800 Depth >45m 1 column 1 pile 1 pile = 450Ton Too much for some Cols

PILING Driven Pile: Hammer NOISY AFFECT TO SURROUNDING NOT FLEXIBLE FIT FOR STIFFER SOILS

PILING Jacking Pile SELECT P.H.C PILE Work same Same price Faster R.C

12m 50T 30m 120T

PILING PLAN D350: 24 no. 1 pile 1 column D450: 248 no. for columns support RC slabs PILING PLAN

COMPARE PILING OPTIONS Bored Pile Jacking Pile D800 D350 D450 Number 117 24 248 Depth of 1 pile (m) 45 12 30 Total Depth (m) 3273 288 7440 Unit price (Mil. VND/m depth) 4.12 0.35 0.62 Price (Mil. VND) 13,485 101 4,613 4,714 * Roughly estimate → SELECT P.H.C PILE

SLAB ON GRADE 1st Floor Slab on grade (SOG) Separate with Foundations for Columns Use SOG to support 1FL walls

CONCRETE FRAMING OPTIONS Girder: 1200x700, 1000x700 Slab: 270mm Girder: 700x700 Beam: 500x700 Slab: 200mm Flat Slab: 250mm SECONDARY BEAMS POST TENSION SLAB 2-WAY SLAB

CONCRETE FRAMING OPTIONS Deflection: 45mm Deflection: 44mm Deflection: 42mm SECONDARY BEAMS POST TENSION SLAB 2-WAY SLAB

CONCRETE FRAMING OPTIONS Bigger size Heavier Lighter More beams More formworks Least formwork More complicate May be slower Expensive Materials SECONDARY BEAMS POST TENSION SLAB 2-WAY SLAB

COMPARE FRAMING OPTIONS Roughly estimate For 891m2 floor Category 2-way slab Secondary beams Post-tension Flat slab Unit Slab Concrete Quantity 240.57 178.2 222.75 m3   Price 628.85 465.81 735.08 Mil. VND Rebar 13995 15489 7970 kg 349.88 387.23 199.25 Formwork 734.4 765.6 891 m2 113.10 117.90 137.21 Beams 110.8368 89.88 289.73 234.95 20662 17164 516.55 429.10 452.144 506.66 76.86 86.13 Tendon 11480 855.69 Total price 1974.96 1721.12 1927.23 Total unit price 2.22 1.93 2.16 Mil. VND/m2 → SELECT Slab with secondary beams

Compare to COMPOSITE STRUCTURE Composite Steel Deck slab Columns can be steel Price ≈2 mil.VND/m2 (excluded Fire protection) * Based on quotation of the contractor Reduce load More complicate, Slower

SPAN LENGTH Efficient span: 2x9m = 18m Create enough space for 1FL Mart Use Continuous Steel roof girder

STEEL STRUCTURE STEEL GIRDER span 18m Fast, Easy for construct

STEEL STRUCTURE SPACE FRAME FLAT TRUSS Complex, Slow down construction Only suitable for large span, 54m eg.

PURLIN STRUCTURE Cold-form Z, C profiles Suitable for column pitch 6-7m Select Hot rolled I profiles To support wind loads in large span 11m

POLE SIGN STRUCTURE Steel Hollow column for Pole Small steel shape truss for Sign

EXPANSION JOINTS IN R.C SLAB Double the columns 2 cols 1 pile cap PROPOSED LAYOUT

DESIGN CODES US. Codes for structural design Compatible with Korean standard Concrete: ACI 318-11 Steel: AISC LRFD Wind load: ASCE 7-05 Seismic load: UBC 97 Load combinations: UBC 97

LIVE LOAD 1st Floor SDL: Superimposed Dead load LL: Live load (by Code)

LIVE LOAD 2nd Floor SDL: Superimposed Dead load LL: Live load (by code)

WIND LOAD Code: ASCE 7-05

SEISMIC LOAD Code: UBC 97

RFI to Client Live loads on Mart Client to confirm use US code with Authorities