To review reinforcing bar welding on a set, confirm the AWS D1.4/D1.4M edition the structural notes and reinforcing specification cite, then find every location where a bar is welded, whether a welded splice, a bar welded to an embed or steel member, or a welded cross bar, and check that the bar specification and grade there are stated the same way in the notes, specification, and rebar shop drawings. Next check that lap, mechanical, and welded splices are assigned consistently, that each welded joint is detailed, and that the inspection program covers the welds. AI can flag conflicts; the engineer of record and the welding inspector decide compliance.
What does AWS D1.4 cover?
The AWS store page for D1.4/D1.4M:2018-AMD1, titled Structural Welding Code for Steel Reinforcing Bars, states that the code covers the requirements for welding steel reinforcing bars in most reinforced concrete applications, that it contains a body of rules for regulating that welding, and that it provides acceptance criteria for such welds. It is a welding code: where splices are needed and which type the design uses come from the concrete design code and the engineer of record, and the code tells the fabricator and inspector how a welded bar joint is made, qualified, and accepted.
The AWS store sells D1.4/D1.4M:2018-AMD1 in print and as a PDF and lists the 2011 and 2005 editions as historical products. Checked October 22, 2026. A project specification written from an older template may still cite the 2011 edition, and the adopted building code and the concrete design code it references may each name an edition of their own, so record the edition and amendment the contract and adopted code actually name rather than assuming the newest one governs.
Welds that join bars to structural steel shapes or plates sit between two codes, so check which one the notes assign; the AWS D1.1 guide covers structural steel welding. Splice locations and types follow the concrete design; see the ACI 318 guide. Weld symbols follow AWS A2.4, which the store page lists alongside D1.4 as A2.4:2020.
Gather every document that mentions welded reinforcement
Collect the structural general notes, foundation, wall, column, and slab reinforcing plans and schedules, the splice and development notes, embed plate and steel-to-concrete connection details, the reinforcing steel specification (often Section 03 20 00) and any mechanical splice or welding articles, the statement of special inspections, and the rebar shop drawings and placing drawings once submitted.
Add the mill certificates, mechanical splice product data, and welding procedure specifications when they are submitted, because they show the bars and joints the fabricator actually intends to use.
Trace each welded bar from the drawings to inspection
| Review question | Sources to compare | Decision to record |
|---|---|---|
| Edition and scope of welding | Structural general notes, reinforcing specification, shop drawing notes | Record the D1.4 edition each document cites, and whether the notes permit, require, or prohibit welding of reinforcement. |
| Bar specification and grade at welds | General notes, reinforcing schedules, specification, rebar shop drawings, mill certificates | Confirm the bar specification and grade at each welded location match across sources, and that the specification says how the weldability of supplied bars is documented. |
| Lap, mechanical, or welded splice | Splice notes, column and wall schedules, specification, rebar shop drawings | Record the splice type the design assigns at each location and flag a shop drawing that substitutes another type without a recorded approval. |
| Welded joint details | Embed and connection details, typical splice details, shop drawings | Check that each welded bar joint has a detail or weld symbol that identifies the joint and weld, and that the tail references resolve. |
| Bars welded to steel | Embed plate details, steel connection details, steel and reinforcing specifications | Confirm which welding code and which trade cover bars welded to plates or shapes, and that both specifications say the same thing. |
| Procedures and inspection | Reinforcing specification, statement of special inspections, general notes | Confirm the specification calls for welding procedures and welder qualification under the cited code, and that the inspection program lists reinforcing bar welding where the drawings show it. |
Bar placement and schedules continue in the rebar shop drawing checklist and the concrete reinforcement checklist, the reinforcing specification in the concrete specifications guide, and inspections in the special inspections corrections guide.
Example: column splices that change type on the shop drawings
Hypothetical example. A five-story cast-in-place concrete building calls for mechanical splices at the column vertical bars in the structural notes. The reinforcing specification allows welded splices as an alternative and cites the 2011 edition of D1.4, the rebar shop drawings show welded splices at one column line with a bar grade note different from the general notes, an embed plate detail shows bars welded to the plate with no weld symbol, and the statement of special inspections does not list reinforcing bar welding.
The structural notes call for mechanical column splices, but the rebar shop drawings show welded splices at one column line with a bar grade note that differs from the general notes, the specification allows welding under an older D1.4 edition, the embed plate detail has no weld symbol, and the inspection statement omits reinforcing bar welding. Confirm the splice type, bar grade, D1.4 edition, and embed weld, and coordinate the notes, specification, shop drawings, and inspection program.
The engineer of record decides whether the welded splices are accepted, confirms the bar grade, and updates the specification and inspection program. The finding is a disagreement between documents, not a judgment of weld quality or splice design.
Review reinforcing bar welding with Groundbook
Upload the current drawings and specifications to Groundbook, and state the edition, amendments, and review scope in your instructions. Add the D1.4/D1.4M edition and amendment the specification names, AWS A2.4 if your team reads symbols against it, and the concrete design code edition the adopted building code references, from copies you are licensed to upload. See how Groundbook works with local and licensed codes.
Compare the structural general notes, reinforcing plans and schedules, splice notes, embed plate and connection details, the reinforcing steel and structural steel specifications, the statement of special inspections, and the rebar shop and placing drawings. Flag a D1.4 edition that differs between documents, welded locations where the bar specification or grade differs between sources, splice types that change between the design documents and the shop drawings, welded joints with no detail or incomplete weld symbols, bars welded to steel with no assigned welding code, and reinforcing bar welding missing from the inspection program. Use the supplied AWS D1.4 and cite both sources.
Groundbook links each potential finding to the sheets, shop drawings, and specification articles involved. It does not size welds, qualify procedures, or design splices.
Document review does not certify welds, approve splice substitutions, or replace the engineer of record, the fabricator’s quality program, or the special inspector.