Content Change Log

Version, review date, change note and evidence basis for maintained East Baoyu engineering articles.

Maintenance record

What changed—and what the article can support.

Minor spelling or formatting changes may not receive a separate version. Technical, scope, source or conclusion changes receive a new note and reviewed date.

Version 1.0

Custom Steel Fabrication: Define the RFQ Before Pricing

Scheduled as EB50-013 on 2026-09-05.

Official and public references identified in the article. Project values and release decisions require qualified review under the applicable project responsibilities.
Version 1.0

Structural Steel Buildings: Map the Complete System

Scheduled as EB50-012 on 2026-09-05.

Official and public references identified in the article. Project values and release decisions require qualified review under the applicable project responsibilities.
Version 1.0

Solar Panel Mounting Brackets: Approve the Exact Assembly

Scheduled as EB50-011 on 2026-09-05.

Official and public references identified in the article. Project values and release decisions require qualified review under the applicable project responsibilities.
Version 1.0

Fixed-Tilt Solar Mounting Cost: Normalize Array Topology

Scheduled as EB50-010 on 2026-09-05.

Official and public references identified in the article. Project values and release decisions require qualified review under the applicable project responsibilities.
Version 1.0

Fixed-Tilt Solar Mounting Design: Reconcile Every Model

Scheduled as EB50-008 on 2026-09-05.

Official and public references identified in the article. Project values and release decisions require qualified review under the applicable project responsibilities.
Version 1.0

Structural Steel Fabricators: Match Evidence to Contract Scope

Scheduled in the East Baoyu EB50 article batch on 2026-09-02.

Official and public references identified in the article. Project values and release decisions require qualified review under the applicable project responsibilities.
Version 1.0

Structural Steel Shop Drawings: Release the First Submittal

Scheduled in the East Baoyu EB50 article batch on 2026-09-02.

Official and public references identified in the article. Project values and release decisions require qualified review under the applicable project responsibilities.
Version 1.0

Industrial Steel Structures: Freeze the Operating Basis

Scheduled in the East Baoyu 30-article engineering knowledge-base batch on 2026-08-25.

Official and public references identified in the article. Project values and release decisions require qualified review under the applicable project responsibilities.
Version 1.0

Coating Inspection Report: Trace the Release Evidence

Scheduled in the East Baoyu 30-article engineering knowledge-base batch on 2026-08-25.

Official and public references identified in the article. Project values and release decisions require qualified review under the applicable project responsibilities.
Version 1.0

Structural Steel Welding: Release the Production System

Scheduled in the East Baoyu 30-article engineering knowledge-base batch on 2026-08-25.

Official and public references identified in the article. Project values and release decisions require qualified review under the applicable project responsibilities.
Version 1.0

Material Test Certificate: Review Every Result in Context

Scheduled in the East Baoyu 30-article engineering knowledge-base batch on 2026-08-25.

Official and public references identified in the article. Project values and release decisions require qualified review under the applicable project responsibilities.
Version 1.0

Ground-Mount Solar Racking: Release Every Array Block

Scheduled in the East Baoyu 30-article engineering knowledge-base batch on 2026-08-25.

Official and public references identified in the article. Project values and release decisions require qualified review under the applicable project responsibilities.
Version 1.0

Steel Structure Cost: Match the Estimate to Maturity

Scheduled in the East Baoyu 30-article engineering knowledge-base batch on 2026-08-25.

Official and public references identified in the article. Project values and release decisions require qualified review under the applicable project responsibilities.
Version 1.0

Fixed-Tilt Solar Mounting Foundation: Prove Each Zone

Scheduled in the East Baoyu 30-article engineering knowledge-base batch on 2026-08-25.

Official and public references identified in the article. Project values and release decisions require qualified review under the applicable project responsibilities.
Version 1.0

Steel Structure Design: Close Every Design Interface

Scheduled in the East Baoyu 30-article engineering knowledge-base batch on 2026-08-25.

Official and public references identified in the article. Project values and release decisions require qualified review under the applicable project responsibilities.
Version 1.0

Solar Tracker Cost: Price the Lifecycle Duty

Scheduled in the East Baoyu 30-article engineering knowledge-base batch on 2026-08-25.

Official and public references identified in the article. Project values and release decisions require qualified review under the applicable project responsibilities.
Version 1.0

Prefabricated Steel Structure: Set the Delivery Unit

Scheduled in the East Baoyu 30-article engineering knowledge-base batch on 2026-08-25.

Official and public references identified in the article. Project values and release decisions require qualified review under the applicable project responsibilities.
Version 1.0

Single-Axis Solar Tracker: Freeze the Row Architecture

Scheduled in the East Baoyu 30-article engineering knowledge-base batch on 2026-08-25.

Official and public references identified in the article. Project values and release decisions require qualified review under the applicable project responsibilities.
Version 1.0

Screw Piles in Rocky Ground: Test Before You Commit

Scheduled in the East Baoyu 30-article engineering knowledge-base batch on 2026-08-25.

Official and public references identified in the article. Project values and release decisions require qualified review under the applicable project responsibilities.
Version 1.0

Dual-Axis Solar Tracker: Prove the Second Axis

Scheduled in the East Baoyu 30-article engineering knowledge-base batch on 2026-08-25.

Official and public references identified in the article. Project values and release decisions require qualified review under the applicable project responsibilities.
Version 1.0

Quality Plan vs ITP: Define Control Without Duplication

Scheduled in the East Baoyu 30-article engineering knowledge-base batch on 2026-08-25.

Official and public references identified in the article. Project values and release decisions require qualified review under the applicable project responsibilities.
Version 1.0

Fixed-Tilt Solar Racking Installation: Qualify the First Table

Scheduled in the East Baoyu 30-article engineering knowledge-base batch on 2026-08-25.

Official and public references identified in the article. Project values and release decisions require qualified review under the applicable project responsibilities.
Version 1.0

Structural Steel Galvanizing: Design Before the Bath

Scheduled in the East Baoyu 30-article engineering knowledge-base batch on 2026-08-25.

Official and public references identified in the article. Project values and release decisions require qualified review under the applicable project responsibilities.
Version 1.0

Flexible Solar Mounting Cost: Compare the Whole System

Scheduled in the East Baoyu 30-article engineering knowledge-base batch on 2026-08-25.

Official and public references identified in the article. Project values and release decisions require qualified review under the applicable project responsibilities.
Version 1.0

Ground Screw Load Capacity: Check Every Governing Limit

Scheduled in the East Baoyu 30-article engineering knowledge-base batch on 2026-08-25.

Official and public references identified in the article. Project values and release decisions require qualified review under the applicable project responsibilities.
Version 1.0

Solar Tracker Torque Tube: Freeze the Row Load Path

Scheduled in the East Baoyu 30-article engineering knowledge-base batch on 2026-08-25.

Official and public references identified in the article. Project values and release decisions require qualified review under the applicable project responsibilities.
Version 1.0

First Article Inspection: Release the Process, Not One Sample

Scheduled in the East Baoyu 30-article engineering knowledge-base batch on 2026-08-25.

Official and public references identified in the article. Project values and release decisions require qualified review under the applicable project responsibilities.
Version 1.0

Flexible Solar Mounting Installation: Control Every Work State

Scheduled in the East Baoyu 30-article engineering knowledge-base batch on 2026-08-25.

Official and public references identified in the article. Project values and release decisions require qualified review under the applicable project responsibilities.
Version 1.0

Structural Steel Fabrication Process: Control Each Work Package

Scheduled in the East Baoyu 30-article engineering knowledge-base batch on 2026-08-25.

Official and public references identified in the article. Project values and release decisions require qualified review under the applicable project responsibilities.
Version 1.0

Solar Tracker Actuator: Specify the Full Motion Chain

Scheduled in the East Baoyu 30-article engineering knowledge-base batch on 2026-08-25.

Official and public references identified in the article. Project values and release decisions require qualified review under the applicable project responsibilities.
Version 1.0

Ground Screw Pile Installation: Control Every Hold Point

Scheduled in the East Baoyu 30-article engineering knowledge-base batch on 2026-08-25.

Official and public references identified in the article. Project values and release decisions require qualified review under the applicable project responsibilities.
Version 1.0

Fixed-Tilt Solar Mounting Components: Control Every Interface

Scheduled in the East Baoyu 30-article engineering knowledge-base batch on 2026-08-25.

Official and public references identified in the article. Project values and release decisions require qualified review under the applicable project responsibilities.
Version 1.0

Welding Inspection Checklist: Release Welds by Evidence

Scheduled in the East Baoyu 30-article engineering knowledge-base batch on 2026-08-25.

Official and public references identified in the article. Project values and release decisions require qualified review under the applicable project responsibilities.
Version 1.0

Solar Mounting Wind Load: Audit the Evidence Chain

Scheduled in the East Baoyu 30-article engineering knowledge-base batch on 2026-08-25.

Official and public references identified in the article. Project values and release decisions require qualified review under the applicable project responsibilities.
Version 1.0

Large-Span Steel Structure: Build a Tender-Ready Basis

Scheduled in the East Baoyu 30-article engineering knowledge-base batch on 2026-08-25.

Official and public references identified in the article. Project values and release decisions require qualified review under the applicable project responsibilities.
Version 1.0

Solar Mounting System Cost: Freeze the Cost Basis

Scheduled in the East Baoyu 30-article engineering knowledge-base batch on 2026-08-25.

Official and public references identified in the article. Project values and release decisions require qualified review under the applicable project responsibilities.
Version 1.0

Ground Screw Pile Cost: Compare International Quotes

Scheduled in the East Baoyu 30-article engineering knowledge-base batch on 2026-08-25.

Official and public references identified in the article. Project values and release decisions require qualified review under the applicable project responsibilities.
Version 1.0

Solar Tracker Slew Drive: Verify the Whole-Row Interface

Scheduled in the East Baoyu engineering knowledge-base batch on 2026-08-12.

Official and public references identified in the article. Project values and release decisions require qualified review under the applicable project responsibilities.
Version 1.0

Steel Structure Construction: Control Every Erection State

Scheduled in the East Baoyu engineering knowledge-base batch on 2026-08-12.

Official and public references identified in the article. Project values and release decisions require qualified review under the applicable project responsibilities.
Version 1.0

EN 1090 Steel Fabrication: How to Verify Order Scope

Scheduled in the East Baoyu engineering knowledge-base batch on 2026-08-12.

Official and public references identified in the article. Project values and release decisions require qualified review under the applicable project responsibilities.
Version 1.0

Solar Tracker Installation: Qualify Each Row Before Handover

Scheduled in the East Baoyu engineering knowledge-base batch on 2026-08-12.

Official and public references identified in the article. Project values and release decisions require qualified review under the applicable project responsibilities.
Version 1.0

Ground Screw vs Helical Pile: How to Choose by Evidence

Scheduled in the East Baoyu engineering knowledge-base batch on 2026-08-12.

Official and public references identified in the article. Project values and release decisions require qualified review under the applicable project responsibilities.
Version 1.0

Galvanizing Inspection: A Release Checklist for Steel Buyers

Scheduled in the East Baoyu engineering knowledge-base batch on 2026-08-12.

Official and public references identified in the article. Project values and release decisions require qualified review under the applicable project responsibilities.
Version 1.0

Material Traceability in Steel Fabrication: A Buyer Checklist

Scheduled in the East Baoyu engineering knowledge-base batch on 2026-08-12.

Official and public references identified in the article. Project values and release decisions require qualified review under the applicable project responsibilities.
Version 1.0

When Does a PV Project Need a Wind Tunnel Study?

Initial scheduled publication in the East Baoyu engineering knowledge-base batch.

Official and public references identified in the article, together with original editorial diagrams. Project values and release decisions require qualified review under the applicable project responsibilities.
Version 1.0

Proof Tests vs Ultimate Tests for Screw Piles

Initial scheduled publication in the East Baoyu engineering knowledge-base batch.

Official and public references identified in the article, together with original editorial diagrams. Project values and release decisions require qualified review under the applicable project responsibilities.
Version 1.0

Terrain Category and Roughness for Solar Mounting Wind Design

Initial scheduled publication in the East Baoyu engineering knowledge-base batch.

Official and public references identified in the article, together with original editorial diagrams. Project values and release decisions require qualified review under the applicable project responsibilities.
Version 1.0

Lateral Load Testing for Ground Screws: Setup and Interpretation

Initial scheduled publication in the East Baoyu engineering knowledge-base batch.

Official and public references identified in the article, together with original editorial diagrams. Project values and release decisions require qualified review under the applicable project responsibilities.
Version 1.0

EN 10204 Type 3.1 vs 3.2 Material Certificates

Initial scheduled publication in the East Baoyu engineering knowledge-base batch.

Official and public references identified in the article, together with original editorial diagrams. Project values and release decisions require qualified review under the applicable project responsibilities.
Version 1.0

Solar Mounting Project Input Sheet for Quotation and Engineering Review

Initial scheduled publication in the East Baoyu engineering knowledge-base batch.

Official and public references identified in the article, together with original editorial diagrams. Project values and release decisions require qualified review under the applicable project responsibilities.
Version 1.0

Vendor Submittal Schedule: How to Prevent Late Document Approval

Initial scheduled publication in the East Baoyu engineering knowledge-base batch.

Official and public references identified in the article, together with original editorial diagrams. Project values and release decisions require qualified review under the applicable project responsibilities.
Version 1.0

Basic Wind Speed Conversions for Solar Projects: Avoiding Input Errors

Initial scheduled publication in the East Baoyu engineering knowledge-base batch.

Official and public references identified in the article, together with original editorial diagrams. Project values and release decisions require qualified review under the applicable project responsibilities.
Version 1.0

Material Grade Equivalence in International Steel Projects

Initial scheduled publication in the East Baoyu engineering knowledge-base batch.

Official and public references identified in the article, together with original editorial diagrams. Project values and release decisions require qualified review under the applicable project responsibilities.
Version 1.0

Combining Geotechnical and Structural Inputs for Solar Mounting

Initial scheduled publication in the East Baoyu engineering knowledge-base batch.

Official and public references identified in the article, together with original editorial diagrams. Project values and release decisions require qualified review under the applicable project responsibilities.
Version 1.0

Compression Load Testing for Ground Screws: Setup, Procedure and Records

Initial scheduled publication in the East Baoyu engineering knowledge-base batch.

Official and public references identified in the article, together with original editorial diagrams. Project values and release decisions require qualified review under the applicable project responsibilities.
Version 1.0

Topographic Survey Requirements for Ground-Mount Solar Structures

Initial scheduled publication in the East Baoyu engineering knowledge-base batch.

Official and public references identified in the article, together with original editorial diagrams. Project values and release decisions require qualified review under the applicable project responsibilities.
Version 1.0

How to Plan a Ground Screw Load Test Program

Initial scheduled publication in the East Baoyu engineering knowledge-base batch.

Official and public references identified in the article, together with original editorial diagrams. Project values and release decisions require qualified review under the applicable project responsibilities.
Version 1.0

BIM and Model LOD for Structural Steel Fabrication

Initial scheduled publication in the East Baoyu engineering knowledge-base batch.

Official and public references identified in the article, together with original editorial diagrams. Project values and release decisions require qualified review under the applicable project responsibilities.
Version 1.0

Ground Screw Project Input Sheet: What Buyers Should Submit

Initial scheduled publication in the East Baoyu engineering knowledge-base batch.

Official and public references identified in the article, together with original editorial diagrams. Project values and release decisions require qualified review under the applicable project responsibilities.
Version 1.0

Project Document Register for Manufactured Steel and Solar Components

Initial scheduled publication in the East Baoyu engineering knowledge-base batch.

Official and public references identified in the article, together with original editorial diagrams. Project values and release decisions require qualified review under the applicable project responsibilities.
Version 1.0

Module Datasheet Inputs Needed for Solar Mounting Design

Initial scheduled publication in the East Baoyu engineering knowledge-base batch.

Official and public references identified in the article, together with original editorial diagrams. Project values and release decisions require qualified review under the applicable project responsibilities.
Version 1.0

Geotechnical Data Needed Before Specifying Ground Screws

Initial scheduled publication in the East Baoyu engineering knowledge-base batch.

Official and public references identified in the article, together with original editorial diagrams. Project values and release decisions require qualified review under the applicable project responsibilities.
Version 1.0

Solar Mounting Design Inputs: A Controlled Checklist for EPC and Procurement Teams

Initial publication with a five-gate release ladder, module and layout controls, environmental and geotechnical inputs, durability and interface workflow, RFQ comparison table, change-control steps and five buyer FAQs.

IEC PV module and tracker qualification references, ASCE load-basis overview, DOE and NREL procurement guidance, ISO atmospheric-corrosivity guidance, and an original East Baoyu five-gate input-control framework. Project values require qualified engineering review.
Version 1.0

Ground Screw Design Input Checklist for EPC and Procurement Teams

Initial publication with a minimum-input table, preliminary-versus-hold-point rules, an eight-step workflow, responsibility matrix, example register, failure analysis and buyer issue checklist.

FHWA geotechnical site-characterization guidance, ICC-ES helical-system acceptance criteria, ASTM deep-foundation test-method listings, ISO zinc-coating guidance, and an original East Baoyu input-control framework. Project values require qualified geotechnical and structural review.
Version 2.0

Ground Screw Selection from Site Investigation: A Controlled Engineering Route

Rebuilt around a five-stage engineering route with selection and exception tables, ground/structural inputs, trial installation, zone rules, durability, production records, FAQs and project-specific next steps.

Cited geotechnical and helical-system guidance, established design/installation control principles, and East Baoyu controlled product context. Project values require qualified geotechnical and structural review.
Version 2.0

Installation Torque and Ground Screw Capacity: Correlation, Control and Testing

Rebuilt to separate torque, depth, test response and design capacity; added correlation workflow, field disposition tables, measurement controls, testing, structural limits, records, FAQs and CTA.

Cited helical-system acceptance guidance plus established load-test, measurement and construction quality principles. No universal torque factor or capacity is provided.
Version 2.0

Screw Piles vs. Concrete Foundations: A Project Selection Guide

Rebuilt as a project-selection guide with a direct answer, common design basis, decision table, QA routes, programme and environmental boundaries, procurement questions, FAQ, internal links and reviewed visuals.

Cited acceptance and geotechnical guidance, established foundation engineering principles, and East Baoyu product/manufacturing context. No universal cost, carbon or capacity value is claimed.
Version 2.0

Corrosion Design for Ground Screws, Solar Mounting and Structural Steel

Rebuilt with exposure and system-selection tables, detailing and fabrication controls, coating ITP, transport/site protection, maintenance plan, specification checklist, FAQs and reviewed imagery.

Official ISO standards pages and established corrosion-protection, fabrication and inspection principles. Site exposure and coating specification require project review.
Version 2.0

Solar Tracker Wind Load and Stow Strategy: Structural and Control Coordination

Rebuilt with structural-control coordination tables, wind and state modelling, trigger/sensor logic, power-loss behaviour, foundation interfaces, commissioning tests, operations, FAQs and visuals.

Official IEC tracker qualification information, Sandia PV performance modelling resources, and established structural/control functional-safety practices. Project wind design remains site-specific.
Version 2.0

Fixed versus Tracking PV: How to Build a Defensible Energy Comparison

Rebuilt with common-model and constructability tables, resource and geometry controls, loss waterfall, clipping/grid value, lifecycle economics, sensitivity, handover requirements, FAQs and imagery.

Sandia and NREL PV modelling resources plus established energy-yield and lifecycle economic practice. No universal tracker gain or cost advantage is claimed.
Version 2.0

Flexible PV Mounting: Span, Pretension, Deflection and Dynamic Verification

Rebuilt with verification and field-disposition tables, boundary/pretension controls, dynamic wind screening, components, supports, testing, commissioning, maintenance, FAQs and reviewed visuals.

Established cable-structure, wind-engineering and PV system verification principles plus East Baoyu product context. Dynamic assessment and testing scope remain configuration-specific.
Version 2.0

Steel Fabrication ITP: Linking MTC, WPS, NDT, Dimensions and Coating Records

Rebuilt with document hierarchy and production-stage tables, material/welding/NDT/dimensional/coating controls, hold points, NCR route, MDR structure, FAQs, internal links and factory imagery.

Official ISO welding and galvanizing standards pages plus established fabrication quality, inspection and traceability principles. Contract documents control the project ITP.
Version 2.0

Export Packing for Solar Mounting and Steel Components

Rebuilt with risk and release tables, shipping-unit design, geometry/moisture/timber/container controls, durable marking, receiving/storage, enquiry checklist, FAQs and factory/logistics visuals.

Official CTU Code guidance plus established packaging, cargo-securing, corrosion-preservation and project logistics principles. Carrier and destination rules remain project-specific.
Version 2.0

Project Acceptance and Manufacturing Data Records: A Buyer Checklist

Rebuilt with MDR architecture and NCR tables, design/material/process/test/coating/logistics controls, progressive review and digital handover, final buyer checklist, FAQs and reviewed visuals.

Official ISO quality and welding standards pages plus established manufacturing-quality, traceability, document-control and buyer acceptance principles.

Policy version: 2026-07-23 · Corrections: info@baolaipipes.com

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