group project presentation - 2 (final)
TRANSCRIPT
Design of Portland BuildingDetailed design
Department of Civil & Structural Engineering
Nabeel Jafri Vishal KrishnanJohn Muramya
Anuj RamdasMuhammad Shah
GROUP 8
Department of Civil & Structural Engineering
Structural layout – Residential floors
Department of Civil & Structural Engineering
Structural layout – Ground floor
Department of Civil & Structural Engineering
Structural layout Basement
-5 columns to be supported by beams-Ramp slope limited to 1:3-Minimum clear distance of 2.5 m between columns maintained
Department of Civil & Structural Engineering
Vertical Section
-Maximum beam depth for ground and residential floor is 406 mm-Maximum beam depth in basement is 1016mm-Maximum column size is UKC305x305x89-Raft foundation with piles reaching bedrock
Department of Civil & Structural Engineering
Retaining Wall & Foundation
Department of Civil & Structural Engineering
Base plate
Department of Civil & Structural Engineering
Column base plates
Base Plate Column Column Section Steel Grade Bolts No of bolts Thickness Width Length
BP1 A1 UKC 203 x 203 x 52 S275 M20 Grade 8.8 8 15 270 280
BP2 A3 UKC 254 x 254 x 89 S275 M20 Grade 8.8 8 25 400 400
BP3 A5 UKC 305 x 305 x 97 S275 M20 Grade 8.8 8 25 410 420
BP4 A8 UKC 254 x 254 x 89 S275 M20 Grade 8.8 8 25 400 400
BP5 A10 UKC 203 x 203 x 52 S275 M20 Grade 8.8 8 15 270 280
BP6 B7 UKC 305 x 305 x 97 S275 M20 Grade 8.8 8 25 410 420
BP7 C1 UKC 254 x 254 x 89 S275 M20 Grade 8.8 8 25 400 400
BP8 C3 UKC 356 x 368 x 153 S275 M20 Grade 8.8 8 30 520 520
BP9 C4 UKC 203 x 203 x 86 S275 M20 Grade 8.8 8 20 300 320
BP10 C8 UKC 356 x 368 x 153 S275 M20 Grade 8.8 8 30 520 520
BP11 C10 UKC 254 x 254 x 89 S275 M20 Grade 8.8 8 25 400 400
BP12 D7 UKC 305 x 305 x 118 S275 M20 Grade 8.8 8 30 450 450
Department of Civil & Structural Engineering
Beam to beam connection
Department of Civil & Structural Engineering
Beam to beam connection
Department of Civil & Structural Engineering
Beam to beam connection
Department of Civil & Structural Engineering
Beam to beam connections
Connection Type Supporting Beam
Supported Beam 1
Supported Beam 2 Fitting N notch d
Bolt gauge mm
Weldsmm
Holes dia mm
Dia. of bolts
Residential Floor
RC1 EA2 406 x 140 x 39 203 x 133 x 25 ---- 150 x 8 90 30 90 6 22 20
RC2 EA2 406 x 140 x 39 203 x 133 x 30 ---- 150 x 8 90 30 90 6 22 20
Ground Floor
GC1 EA2 406 x 140 x 39 203 x 133 x 25 ---- 150 x 8 90 30 90 6 22 20
GC2 EA2 406 x 140 x 39 203 x 133 x 30 ---- 150 x 8 90 30 90 6 22 20
Basement
BC1 EA4 610 x 229 x 101 406 x 178 x 74 406 x 178 x 74 150 x 8 130 40 90 6 22 20
BC2 EA4 457 x 191 x 67 406 x 178 x 74 ---- 150 x 8 110 30 90 6 22 20
BC3 EB11 1016 x 305 x 272 406 x 178 x 74 914 x 305 x 201 200 x 10 170 50 140 8 22 20
BC4 EB6 686 x 254 x 125 533 x 210 x 92 ---- 200 x 10 142 50 140 6 22 20
BC5 EA4 762 x 267 x 134 457 x 191 x 82 ---- 150 x 8 150 50 90 6 22 20
Department of Civil & Structural Engineering
Column supported by beam
-Typical detail of discontinued column supported by beam-Point load of 6120 kN acting on to the beam-Column supported by beam at 5 locations in Basement
Department of Civil & Structural Engineering
Splice Details
Department of Civil & Structural Engineering
Column splices
Splice(Grid no)
Height of end plate (hp)
End plate thickness (tp)
End plate width (bp)
BoltThroat Length
No Size e1 e2 p1 p3
Residential
A1 300 12 120 10 20 30 20 60 80 4 6
B1 300 12 120 10 20 30 20 60 80 4 6
C1 300 12 120 10 20 30 20 60 80 4 6
D1 300 12 120 10 20 30 20 60 80 4 6
E2 300 12 120 10 20 30 20 60 80 4 6
BasementA1 300 12 120 10 20 30 20 60 80 4 6
B1 300 12 120 10 20 30 20 60 80 4 6
B4 600 12 200 16 20 20 25 80 150 7 15
C1 300 12 120 10 20 30 20 60 80 4 6
D1 300 12 120 10 20 30 20 60 80 4 6
E2 300 12 120 10 20 30 20 60 80 4 6
G2 300 12 120 10 20 30 20 60 80 4 6
H2 300 12 120 10 20 30 20 60 80 4 6
Department of Civil & Structural Engineering
Beam to column connection
-Typical beam to column connection detail-Flexible end plate connection acting as a pin joint-Connection manufactured in factory and transported to site
Department of Civil & Structural Engineering
Beam to column connections
Grid no Height of end plate (hp) End plate thickness (tp) End plate width (bp)
Bolt
Throat LengthNo Size e1 e2 p1 p3
ResidentialA1 300 12 120 10 20 30 20 60 80 4 6
B1 300 12 120 10 20 30 20 60 80 4 6
C1 300 12 120 10 20 30 20 60 80 4 6
D1 300 12 120 10 20 30 20 60 80 4 6
E2 300 12 120 10 20 30 20 60 80 4 6
BasementA1 300 12 120 10 20 30 20 60 80 4 6
B1 300 12 120 10 20 30 20 60 80 4 6
B4 600 12 200 16 20 20 25 80 150 7 15
C1 300 12 120 10 20 30 20 60 80 4 6
D1 300 12 120 10 20 30 20 60 80 4 6
E2 300 12 120 10 20 30 20 60 80 4 6
G2 300 12 120 10 20 30 20 60 80 4 6
H2 300 12 120 10 20 30 20 60 80 4 6
Department of Civil & Structural Engineering
Wind analysis
-The basic wind speed provided was 22 m/s-The calculations of forces due to wind were carried out using BS6399-2:1997-Forces applied at each level along with EHF for designing bracings
Department of Civil & Structural Engineering
Bracing and bracing connection
-Most efficient way of transferring lateral loads to ground-Inverted V bracing selected to accommodate windows-Two braced bays provided on each face to resist win loads and EHF due to frame imperfections
Department of Civil & Structural Engineering
Frame stability
Level HEd (kN) h (m) VEd (kN) δH,Ed (mm) αcr CheckTop Roof 23.85 3.15 1444.57 3.78 13.76 OK
9 72.00 3.15 4704.63 3.86 12.49 OK8 120.16 3.15 7964.69 4.00 11.88 OK7 168.32 3.15 11224.75 4.10 11.52 OK6 216.47 3.15 14484.81 4.15 11.34 OK5 264.63 3.15 17744.87 4.11 11.43 OK4 312.79 3.15 21004.93 3.97 11.82 OK3 360.95 3.15 24264.99 3.68 12.73 OK2 409.10 3.15 27525.05 3.30 14.19 OK1 457.26 3.15 30785.11 3.06 15.29 OKG 505.42 4.15 34045.17 1.24 49.68 OK
-Second order effects for the frame can be assumed to be small to be neglected if the value of αcr < 10 from elastic analysis [αcr = [HEd x h] / [VEd x δH,Ed] ]-The condition was satisfied as displayed in the table below
Department of Civil & Structural Engineering
Floor system
-Precast hollow core concrete slabs-Depth of slab 200mm, capable of carrying 15 kN / m2 imposed load-Provides diaphragm action transferring lateral loads-Better thermal performance of the building-Speed of Erection-Standard precast floors can be supplied with a fire resistance of up to two hours-Dry construction system
Department of Civil & Structural Engineering
Aerial view