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shipping pieces
Assembly drawings
Each column, rafter, beam or bracing assembly with parts, dimensions, holes, welds and piece mark.
Design workflow · Shop drawings
Shop drawings – every piece, exactly as it will be made
Assembly drawings, single-part drawings, CNC data and material lists generated from the 3D model and checked before release – the instructions our factory works to, and the reference our QA/QC inspects against.
- Step 4
- Of our design workflow after the 3D model
- Every piece
- Detailed & marked assemblies and parts
- CNC
- Cutting & drilling data direct from the model
- Checked
- Before release by an independent checker
What shop drawings are
Shop drawings – also called fabrication drawings – describe how each piece of the structure is made. Assembly drawings show each shipping piece with its parts, dimensions, holes, welds, surface treatment and piece mark; part drawings show every plate and profile to be cut; and CNC files drive our cutting, drilling and marking machines.
They are produced from the 3D model after the approval drawings are approved, checked by a second detailer, and released for fabrication under revision control. The factory fabricates only to released shop drawings – and QA/QC inspects every piece against them.
Contents
What the shop drawing package contains
Generated from the 3D model for every project.
shipping pieces
plates · profiles
Part drawings
Every plate and profile with cut dimensions, holes, bevels and quantities.
machines
CNC / DSTV data
Cutting, drilling and marking files for our CNC lines, straight from the model.
BOM · MTO
Material lists
Bills of materials, cutting lists and weights by assembly and by lot.
connections
Bolt & weld information
Bolt sizes and grades, hole types, weld symbols and NDT marking.
model
3D model reference
The model the drawings come from – see 3D Tekla model.
应用领域
Why shop drawing quality matters
01
Right first time
Holes, cuts and welds that fit at site – no rework, no field drilling.
02
Consistent with the model
Generated from one 3D model, so drawings, CNC and lists always agree.
03
Clear weld information
Weld types and sizes with standard symbols (AWS A2.4 / ISO 2553).
04
Traceable pieces
Piece marks link drawings, heat numbers, inspection and shipping lists.
05
Controlled revisions
Only the current revision reaches the shop floor.
06
Inspection reference
QA/QC inspects dimensions and welds against the released drawing.
Design workflow · step 4 of 6
Where this fits in our design workflow
Shop drawings are step 4 of our six-step design workflow. They come from the 3D Tekla model (step 3), which is built from the approved drawings (step 2) – so nothing reaches the shop floor that you have not approved.
World Steel 设计流程
- 01方案图随报价提供的 PPD – 平面布置、剖面、工程量
- 02报批图纸、设计报告及柱底反力停检点
- 033D Tekla 模型每个构件、钢板、螺栓和焊缝
- 04加工详图构件图和零件图、CNC 数据
- 05安装图平面图、剖面图、安装顺序、螺栓清单
- 06竣工图最终记录，连同质量文件
第 2 步后设停检点：报批图纸获批前不进行任何加工。
Checking & release
Checked, released, controlled
Every drawing is checked by a second detailer against the model and the approved design before release. Released drawings carry a revision and status; superseded drawings are withdrawn from the shop floor, and any change goes back through the model and the approval process.
流程
The World Steel design workflow
- 1
1 · Proposal drawings (PPD)
Layout, sections and preliminary quantities issued with the quotation.
- 2
2 · Approval
Approval drawings, design report and column reactions – approved before fabrication.
- 3
3 · 3D Tekla model
Every member, plate, bolt and weld modelled and clash-checked.
- 4
4 · Shop drawings
Assembly and part drawings, CNC data and material lists.
- 5
5 · Erection drawings
Plans, sections, sequence and bolt lists for site.
- 6
6 · As-built drawings
Final record of the structure as built.
FAQ
常见问题
Do we need to approve shop drawings?
Normally you approve the approval drawings (step 2); shop drawings are our internal production documents. Where the contract requires it, we submit shop drawings for review as well.
Can we receive the shop drawings?
Yes – as PDF with the quality dossier or on request, according to the contract.
How do you prevent fabrication from an old revision?
Drawings are released under revision control, superseded copies are withdrawn, and CNC data is regenerated from the current model.
相关内容
Fabrication-ready drawings
Send us your approved design – we model, detail and fabricate the steel from checked shop drawings.