Plan Review: 185 Issues Found

Summary: 37 index entries | 24 perfect matches | 13 mismatched | 0 missing Mismatched (13): S1.1: Expected: TYPICAL DETAILS (S1.1) | Actual: TYPICAL DETAILS (AS NOT)(p3) S1.3: Expected: TYPICAL DETAILS (S1.3) | Actual: TYPICAL DETAILS (AS NOT)(p3) S2.1: Expected: OVERALL FOUNDATION PLAN (S2.1) | Actual: MAIN OVERALL FLOOR PLAN (S2.1)(p12) S2.5: Expected: LOWER WEST FLOOR P...

Why it matters: Addressing this before construction prevents rework and supports code compliance.

Suggested next step: Review drawings and specifications to resolve before construction.

RFI draft: Please clarify: Drawing Index Audit: 0 missing, 13 mismatched out of 37 sheets

Summary: 33 index entries | 0 perfect matches | 12 mismatched | 21 missing Mismatched (12): 0002: Expected: GENERAL NOTES (0002) | Actual: GENERAL NOTES (MT-0002)(p2) 0050: Expected: BASE PLATE PLAN - PHASE 1 (0050) | Actual: BASE PLATE PLAN - PHASE 1 (MT-0050)(p4) 0100: Expected: COLUMN PLAN - PHASE 1 (0100) | Actual: COLUMN PLAN - PHASE 1 (MT-0100)(p5) 0101: Expected: LI...

Why it matters: Addressing this before construction prevents rework and supports code compliance.

Suggested next step: Review drawings and specifications to resolve before construction.

RFI draft: Please clarify: Drawing Index Audit: 21 missing, 12 mismatched out of 33 sheets

Summary: Plan drawing MT-0050 indicates that Section 15 (on sheet 1006) is taken at Grid Line 13. According to the plan, at Grid Line 13, the offset from the centerline (Grid C) to the inner base plate (PC-103) is 2833, and the offset to the outer base plate is 13874. However, on the Section drawing MT-1006, which is explicitly labeled "SECTION 15 GRID 13", the corresponding dimensions shown are 3985 to...

Why it matters: This is a critical dimensional contradiction. If the columns and base plates are laid out according to the Section 15 drawing under the assumption that it accurately represents Grid 13, the anchor bolts will be placed over a meter away from their intended locations (e.g., 3985 instead of 2833 for...

Suggested next step: Clarify whether Section 15 on sheet MT-1006 is intended to depict Grid 13 or Grid 15. If it depicts Grid 13, please provide a revised section drawing with the correct offsets (2833 and 13874). If it actually depicts Grid 15, please correct the title block on MT-1006 to state '...

RFI draft: Clarify whether Section 15 on sheet MT-1006 is intended to depict Grid 13 or Grid 15. If it depicts Grid 13, please provide a revised section drawing with the correct offsets (2833 and 13874). If it actually depicts Grid 15, please correct the tit...

Summary: Drawing MT-1000 specifies detail F-201_C (via the Connection Table) for the structural connection at Section 1, Grid 1. However, the referenced detail F-201_C on MT-3000 contains severely conflicting fastener specifications between its own sub-views. The Side View specifies using screw assemblies ('8xSCREW-ASSY CYL.' for the beam and '4xSCREW-ASSY CYL.' for the column), whereas the Axonometric ...

Why it matters: Since MT-1000 relies on F-201_C for a major structural connection at Grid 1, the internal contradiction on MT-3000 makes the intended design unclear. Screws versus glued-in threaded rods have fundamentally different structural capacities and installation procedures. Attempting to build this conne...

Suggested next step: Please clarify the intended fastener schedule for connection F-201_C referenced on MT-1000 for Grid 1. Should the contractor install the screw assemblies as detailed in the MT-3000 Side View, or the dowels and glued-in rods as detailed in the MT-3000 Axonometric view?

RFI draft: Please clarify the intended fastener schedule for connection F-201_C referenced on MT-1000 for Grid 1. Should the contractor install the screw assemblies as detailed in the MT-3000 Side View, or the dowels and glued-in rods as detailed in the MT-3...

Summary: Sections 13 (Grid 11) and 14 (Grid 12) on MT-1005 show the outer structural columns (labeled 'Ø COLUMN') at offsets 13871, 13874, and 14496 utilizing base plates PC-100 on the left and PC-102 on the right. However, the Base Plate Plan on MT-0050 explicitly tags the outer column locations at these exact offsets (13871, 13874, and 14496) as 'PC-103'. Furthermore, the plan assigns PC-100, PC-101, ...

Why it matters: Detail 06 on MT-0050 shows that PC-100 and PC-102 feature circular top plates, which geometrically suit the round columns ('Ø COLUMN') shown in the sections. In contrast, PC-103 has a rectangular top plate with angled gussets. This geometric evidence suggests the section callouts (PC-100 and PC-1...

Suggested next step: Please clarify the correct base plate designations for the outer columns on Grids 11 and 12. Should the outer paths on the Base Plate Plan (offsets 13871 to 14980) be revised from PC-103 to PC-100 and PC-102 to match Sections 13 and 14? Additionally, please clarify the status ...

RFI draft: Please clarify the correct base plate designations for the outer columns on Grids 11 and 12. Should the outer paths on the Base Plate Plan (offsets 13871 to 14980) be revised from PC-103 to PC-100 and PC-102 to match Sections 13 and 14? Additional...

Summary: The Roof Beam Plan explicitly references Section 15 (Sheet 1006) along Grid 13. The plan generally depicts a continuous flat grid of standard "PTR" series beams (e.g., PTR-2618, PTR-2623, PTR-2721 found across the plan) with connection types such as "VS-118", "VS-146", and "VS-147 (UNDER)", and this flat framing system continues along Grid 13. In direct contradiction, Section 15 on Grid 13 deta...

Why it matters: This fundamental mismatch indicates that the plan and section reflect completely different structural designs, framing systems, or project phases for the exact same grid line. This contradiction will cause immediate fabrication and erection halts, as it is impossible to determine the correct stru...

Suggested next step: Please clarify the correct structural framing design for Grid 13. Should the Roof Beam Plan be updated to show the arched structural members and columns detailed in Section 15, or is the section callout on the plan pointing to an outdated or incorrect detail?

RFI draft: Please clarify the correct structural framing design for Grid 13. Should the Roof Beam Plan be updated to show the arched structural members and columns detailed in Section 15, or is the section callout on the plan pointing to an outdated or incor...

Summary: Drawing MT-1002 represents "SECTIONS 7 & 8" and specifies detail "VS-100" (width 435) for COL-1087, and detail "VS-101" (width 475) for COL-1089. However, detail drawing MT-4000 explicitly schedules connection "VS-102" (width 525) for grids "7" and "8". Conversely, MT-4000 assigns "VS-100" to grids "5 26 27" and "VS-101" to grids "6 25".

Why it matters: This mismatch means the main structural columns for Sections 7 and 8 have been drawn and detailed with the wrong widths (435mm and 475mm instead of 525mm) and wrong fastener sizes compared to the connection schedule on MT-4000. This will lead to manufacturing errors for the timber columns and inc...

Suggested next step: Please clarify the correct column widths and connection details for the columns on Grids 7 and 8. Should COL-1087 and COL-1089 follow the dimensions of VS-102 (525mm) as scheduled for Grids 7 & 8 on MT-4000, or should the grid assignments on MT-4000 be revised to match the wid...

RFI draft: Please clarify the correct column widths and connection details for the columns on Grids 7 and 8. Should COL-1087 and COL-1089 follow the dimensions of VS-102 (525mm) as scheduled for Grids 7 & 8 on MT-4000, or should the grid assignments on MT-40...

Summary: Sheet MT-0003 explicitly references sections "5 / 1001" and "6 / 1001" along the vertical grid lines. Section 5 is located at Grid 3a, where the anchor plan specifies a symmetric offset of 5474mm from the centerline, which correctly matches the symmetric section detailed on MT-1001. However, Section 6 is located at Grid 4, where the anchor plan specifies asymmetric anchor offsets of 7762mm and ...

Why it matters: If concrete foundations and anchor bolts are placed according to the asymmetric dimensions provided in the MT-0003 anchor plan for Grid 4, the prefabricated structural frames shown in Section 6 on MT-1001 will not align with the cast-in-place base plates. This will result in severe erection delay...

Suggested next step: Please clarify the correct transverse layout dimensions for the structural supports at Section 6 (Grid 4). Should the structural section on MT-1001 be updated to reflect the asymmetric offsets of 7762mm and 7119mm from MT-0003, or should the anchor plan be corrected to match t...

RFI draft: Please clarify the correct transverse layout dimensions for the structural supports at Section 6 (Grid 4). Should the structural section on MT-1001 be updated to reflect the asymmetric offsets of 7762mm and 7119mm from MT-0003, or should the ancho...

Summary: The floor plan calls out detail 10/S5.4 along an exterior perimeter wall. However, Detail 10 on Sheet S5.4 is actually a 'HOUSEKEEPING PAD DETAIL' intended for a 'WASHING MACHINE', which does not match the exterior wall condition shown on the plan.

Why it matters: An incorrect detail callout for the exterior wall leaves the contractor without the correct structural detailing for that perimeter condition. Conversely, the location of the actual housekeeping pad detail might be entirely missed if it is only called out at this incorrect location.

Suggested next step: Please clarify which detail should be referenced for the exterior perimeter wall where 10/S5.4 is currently called out, and provide the correct plan location for Detail 10 (Housekeeping Pad).

RFI draft: Please clarify which detail should be referenced for the exterior perimeter wall where 10/S5.4 is currently called out, and provide the correct plan location for Detail 10 (Housekeeping Pad).

Summary: On the MT108 LOW ROOF DECKING PLAN, the horizontal grid lines from North to South (top to bottom) follow the sequence B, A, C (centerline), E, D. The plan shows a prominent upper canopy extension (grids L, K, J) located on the North side, meaning it extends from the same side as grids B and A. However, on MT202 SECTION 1, the upper canopy extension (grids J, K, L) is depicted on the far right s...

Why it matters: This creates a major contradiction in the building's geometry. The arches and roof profiles are asymmetrical across the centerline. If fabrication and erection are based on the sections as currently drawn, the roof structure will be installed backwards relative to the foundations and the northern...

Suggested next step: Please clarify the orientation of SECTION 1. The plan shows the L, K, J canopy extending from the North side (adjacent to grids A and B), but SECTION 1 shows it extending from the South side (adjacent to grid E). Should the A/B and D/E grid labels be swapped in SECTION 1 to ma...

RFI draft: Please clarify the orientation of SECTION 1. The plan shows the L, K, J canopy extending from the North side (adjacent to grids A and B), but SECTION 1 shows it extending from the South side (adjacent to grid E). Should the A/B and D/E grid labels...

Summary: The Base Plate Plan (MT-0050) assigns base plates PC-103 through PC-106 to specific grid locations (e.g., vertical offsets 8611 through 13109) and details that these assemblies mount to a "STEEL FRAME BY OTHER". However, the Anchor Plan (MT-0003) labels these exact same physical grid locations as "PATTERN TYPE 2". The template for Pattern Type 2 specifies the use of "6X TYPE B" anchors. The "AN...

Why it matters: If the foundation is poured with cast-in-place concrete anchors (Anchor Type B) as per MT-0003, but the structural steel components (PC-103 to PC-106) arrive designed for field-welding to a steel frame as per MT-0050, the assemblies will be fundamentally incompatible. This major discrepancy requi...

Suggested next step: Please clarify the required mounting substrate for base plates PC-103 through PC-106. Should they be embedded in a concrete pier using 'ANCHOR TYPE B' as specified by 'PATTERN TYPE 2' on MT-0003, or field-mounted to a 'STEEL FRAME' as detailed on MT-0050?

RFI draft: Please clarify the required mounting substrate for base plates PC-103 through PC-106. Should they be embedded in a concrete pier using 'ANCHOR TYPE B' as specified by 'PATTERN TYPE 2' on MT-0003, or field-mounted to a 'STEEL FRAME' as detailed on ...

Summary: Detail VS-123 FRONT VIEW shows a connection with a 75 mm gap between the lower member and the "UPPER ARCH IN PHASE 4". The vertical embedment depth for the "(pin)" into the upper arch is dimensioned as 200 mm. This requires a minimum pin length of 275 mm (200 + 75) just to reach the lower member. However, the hardware specification calls for "10 1/2\"" (266.7 mm) dowels. A 266.7 mm dowel cannot...

Why it matters: Because the specified dowel is shorter than the combined length of the upper embedment and the structural gap, it will not penetrate the lower member at all. This leaves the joint unpinned across the gap, failing to transfer shear forces and compromising the structural stability of the Phase 4 up...

Suggested next step: Please correct the specified dowel length for Detail VS-123 so that it adequately spans the 75 mm gap and achieves the required structural embedment depths in both the upper and lower members.

RFI draft: Please correct the specified dowel length for Detail VS-123 so that it adequately spans the 75 mm gap and achieves the required structural embedment depths in both the upper and lower members.

Summary: The structural General Notes mandate that all footings shall bear on undisturbed soil or compacted fill and outline specific soil bearing capacities (e.g., U.L.S. = 280 kPa for strip footings). In direct contradiction, the East Foundation Plan drawing explicitly requires that footings sit on top of bedrock, notes that bedrock blasting is required for flat bearing, and specifies the use of 15M d...

Why it matters: A conflict regarding the primary bearing stratum alters the fundamental geotechnical basis of the design. This discrepancy deeply impacts the excavation methodology, equipment requirements (e.g., blasting vs. standard earthmoving), and structural design validity. Proceeding without coordination c...

Suggested next step: Please clarify the intended bearing stratum for the foundation. Should the footings bear on undisturbed soil or compacted fill as detailed in the structural General Notes, or should they bear on bedrock (with dowels and potential blasting) as indicated in the East Foundation P...

RFI draft: Please clarify the intended bearing stratum for the foundation. Should the footings bear on undisturbed soil or compacted fill as detailed in the structural General Notes, or should they bear on bedrock (with dowels and potential blasting) as indi...

Summary: The Decking Schedule for D2 and D3 specifies a 114mm thick concrete slab on a 76mm composite steel deck, containing 115mm long shear studs. If 114mm represents the total slab thickness, the 115mm shear studs will protrude 1mm above the finished concrete. Furthermore, a 114mm total thickness over a 76mm deck leaves only 38mm of concrete topping, which physically prevents achieving the 40mm minim...

Why it matters: If the '114mm THK' dimension is meant to indicate the concrete topping thickness rather than the total slab thickness (which would equal 190mm total), the current schedule language is misleading and standard detailing interpretation renders the assembly either unconstructable or non-compliant wit...

Suggested next step: Please clarify the intended total slab thickness for D2 and D3. If 114mm is the total thickness, the 115mm shear studs will protrude above the slab and the resulting 38mm topping violates the 40mm minimum cover requirement. If 114mm is intended to be the topping thickness over...

RFI draft: Please clarify the intended total slab thickness for D2 and D3. If 114mm is the total thickness, the 115mm shear studs will protrude above the slab and the resulting 38mm topping violates the 40mm minimum cover requirement. If 114mm is intended to...

Summary: Detail 2 explicitly dimensions the edge distance for a 1 1/4" diameter anchor bolt as 7.5mm from the right edge of the base plate. This is a physical mistake and mathematically impossible, as the required bolt hole radius (min. 16mm) significantly exceeds the 7.5mm edge distance, causing the hole to breach the side of the plate. This directly conflicts with the specification mandating that stee...

Why it matters: A steel base plate cannot be successfully fabricated or installed with an edge distance smaller than the anchor bolt radius. The bolt will break out of the edge of the plate, completely compromising the connection's structural capacity and preventing the column from being properly secured.

Suggested next step: Review the base plate dimensions, column offset, and anchor bolt spacing in Detail 2. Revise the layout to provide adequate, code-compliant edge distances for the 1 1/4" anchor bolts in accordance with CSA S16.

RFI draft: Review the base plate dimensions, column offset, and anchor bolt spacing in Detail 2. Revise the layout to provide adequate, code-compliant edge distances for the 1 1/4" anchor bolts in accordance with CSA S16.