Single Slope Primary Building Steel Framing Industrial Commercial Structural

Product Specification

Product Description
A Single Slope Primary Steel Frame is a specialized structural system characterized by a unidirectional roof slope (3%-20%), engineered for efficient drainage, space optimization, and compatibility with attached buildings. Manufactured with Q355B/Q460 high-strength steel (beams, columns) and Q355B connection plates, this product features a single-slope beam design—with one end of the beam higher than the other—supported by columns of varying heights (or a combination of fixed and elevated columns) to form a sloped roof. The main beams adopt I-shaped or box-section cross-sections (300×150mm to 800×300mm) with yield strength ≥345MPa, optimized via finite element analysis to resist bending and shear forces along the slope, while columns use H-beam or box-section profiles (250×250mm to 600×300mm) to support vertical and lateral loads, limiting vertical deflection to ≤L/500 (L=span length) and lateral displacement to ≤H/600 (H=frame height). Key features include efficient drainage (single slope eliminates water pooling), space-saving design (sloped roof maximizes usable height at one end), and easy integration with existing buildings (matching the roof height of adjacent structures). The surface is treated with hot-dip galvanizing, epoxy paint, or fluorocarbon coating, providing salt spray resistance ≥1000 hours and adapting to indoor, outdoor, and industrial environments. It complies with GB 50017-2017 and AISC 360 structural standards, supporting span customization (10m-30m) and slope angle adjustment (3%-20%) to meet drainage and architectural needs. Professional services include slope optimization for drainage, BIM-based design integration, on-site installation supervision, and load-bearing capacity testing, ensuring the frame balances functionality, efficiency, and compatibility.

Applications
Single Slope Primary Steel Frames are ideal for projects requiring efficient drainage, space optimization, or attachment to existing buildings, widely used in industrial, commercial, and agricultural settings. Certified by GB 50017-2017, AISC 360, and ISO 9001, they meet strict structural and functional standards. Typical applications include industrial workshops (attached to main buildings, with sloped roofs for equipment ventilation), warehouses and storage facilities (single slope for efficient rainwater drainage), agricultural buildings (greenhouses, barns with sloped roofs for natural lighting), commercial auxiliary structures (loading docks, canopies, retail store extensions), and residential attachments (garages, sheds, sunrooms). They are particularly suitable for areas with heavy rainfall or snowfall (slope ≥10% for snow load resistance) and projects where the frame needs to align with existing building heights. The minimum order quantity is 1 set (customized per project), with full tailoring based on span length, slope angle, and column height. Competitive project-based pricing and flexible delivery terms (15-30 workdays based on complexity) support construction schedules for both new builds and extensions. With a monthly supply capacity of 80 project sets, the manufacturer ensures timely delivery and professional technical support. Customization options include corrosion-resistant upgrades (316L stainless steel) for coastal environments, fire-resistant coating (fire resistance ≥1.5 hours) for commercial attachments, and insulated roof beam integration for energy efficiency.