21
Tasks in sequence
AI-ASSISTED
This task sequence was generated from the Output 01 Job Intake against Built AI's steel-erection task library. Predecessors, durations and critical-path identification reviewed by a competent person. The sequence drives every downstream output — the hazard matrix, PPE schedule, permits and evidence pack are all structured against the tasks listed below.
6
Phases
6
Critical-path tasks
4
Hold points
18d
Total duration
Phase view — at-a-glance sequence
PHASE 1
Pre-erection
2 days · Setup & verification
T01Site mobilisation & welfare setup
T02Survey & set-out verification
T03Holding-down bolts level check
T04Crane & lifting plan briefed
PHASE 2
Frame Level 1
4 days · Baseplate to L1 secondary
T05Base plate installation Level 1
T06Column erection Level 1
T07Primary beam connection L1
T08Secondary beam infill L1
PHASE 3
Frame Level 2
3.5 days · L2 columns to bracings
T09Column erection Level 2
T10Primary beam connection L2
T11Secondary beam infill L2
T12Bracings L1 & L2
PHASE 4
Frame Level 3
3 days · L3 columns & beams
T13Column erection Level 3
T14Primary beam connection L3
T15Secondary beam infill L3
PHASE 5
Roof level
1.5 days · Ridge, secondary, purlins
T16Roof level steels
T17Roof bracings & purlins
PHASE 6
Finishing
4.25 days · Torque, fire protection, sign-off
T18Final torque-up & weld inspection
T19Intumescent fire-protection coatin
T20Final dimensional survey
T21Handover to following trade
Critical path
Hold point
Standard task
Detailed sequence — task by task
ID
Phase
Task description
Predecessor
Duration
Type
Status
T01
P1
Site mobilisation & welfare setupWelfare cabin, secure lockdown, laydown, fuel store
—
0.5 d
STANDARD
PLANNED
T02
P1
Survey & set-out verificationSurveyor check vs structural drawings — HOLD POINT before steel arrives
T01
0.5 d
HOLD POINT
PLANNED
T03
P1
Holding-down bolts level checkAll baseplate bolts checked vs design — HOLD POINT before erection
T02
0.5 d
HOLD POINT
PLANNED
T04
P1
Crane & lifting plan briefedLift plan reviewed with crane driver and slingers; exclusion zones agreed
T03
0.25 d
STANDARD
PLANNED
T05
P2
Base plate installation Level 1All baseplates positioned, levelled, grouted
T03
1.0 d
STANDARD
PLANNED
T06
P2
Column erection Level 1Primary columns set, plumbed, temporarily braced — CRITICAL PATH
T05
1.5 d
CRIT PATH
PLANNED
T07
P2
Primary beam connection L1Main beams between columns, bolted, temporary connections — CRITICAL PATH
T06
1.0 d
CRIT PATH
PLANNED
T08
P2
Secondary beam infill L1Joist beams populating bays, decking supports
T07
1.0 d
STANDARD
PLANNED
T09
P3
Column erection Level 2L2 columns lifted, plumbed, braced — CRITICAL PATH
T07
1.0 d
CRIT PATH
PLANNED
T10
P3
Primary beam connection L2L2 main beams placed and bolted — CRITICAL PATH
T09
1.0 d
CRIT PATH
PLANNED
T11
P3
Secondary beam infill L2L2 joists and decking supports
T10
1.0 d
STANDARD
PLANNED
T12
P3
Bracings L1 & L2Permanent cross-bracings to wind frame
T10
0.5 d
STANDARD
PLANNED
T13
P4
Column erection Level 3L3 columns — CRITICAL PATH
T10
1.0 d
CRIT PATH
PLANNED
T14
P4
Primary beam connection L3L3 main beams — CRITICAL PATH
T13
1.0 d
CRIT PATH
PLANNED
T15
P4
Secondary beam infill L3L3 joists
T14
1.0 d
STANDARD
PLANNED
T16
P5
Roof level steelsRidge beams, secondary roof steels, parapet steels
T14
1.0 d
STANDARD
PLANNED
T17
P5
Roof bracings & purlinsWind bracings, roof purlins for cladding
T16
0.5 d
STANDARD
PLANNED
T18
P6
Final torque-up & weld inspectionAll bolts to specified torque, weld NDT inspection — HOLD POINT
T17
1.5 d
HOLD POINT
PLANNED
T19
P6
Intumescent fire-protection coatingsSpray-applied intumescent to specified DFT
T18
2.0 d
STANDARD
PLANNED
T20
P6
Final dimensional surveySurveyor as-built check — HOLD POINT before handover to following trade
T19
0.5 d
HOLD POINT
PLANNED
T21
P6
Handover to following tradeCladding & finishes contractor takes possession
T20
0.25 d
STANDARD
PLANNED
How to use this sequence
This task sequence is the spine of the RAMS pack. Output 03 (Hazard-Risk-Control Matrix) maps hazards to each task ID. Output 04 (PPE & Plant Schedule) maps PPE and plant requirements per task. Output 05 (Permits & Isolations) cross-references permit needs against the hold points. If the sequence changes, the downstream outputs change with it — the workflow is governed end-to-end.
Sequence — Built AI
Author confirmation
I confirm the task sequence has been generated from the approved Output 01 Intake and the structural design package. Predecessors, durations and critical-path identification have been reviewed against the agreed programme.
Author + role Signature + dateApprover — Construction Manager
Approval for issue
As Construction Manager I confirm the sequence is consistent with the approved programme, the lift plan and the agreed outage windows. The hold points and critical path are appropriate for the scope and complexity of works.
Construction Manager Signature + date