Prefabricated steel structure building

Introduction

1. Materials and Properties

High strength steel: mainly made of Q355B and Q420C grade steel, with a yield strength of over 355MPa, reducing weight by 30% -50% compared to traditional concrete structures

Seismic design: Meet the seismic fortification requirements of 9 degrees, adopt ductile design for nodes, and consume seismic energy through friction dampers

Anti corrosion system: Triple protection system (epoxy zinc rich primer 75 μ m+epoxy mica iron intermediate paint 125 μ m+polyurethane topcoat 80 μ m), with a design life of not less than 50 years (ISO 12944 C4 standard)

2. Intelligent construction system

BIM technology: full process digital modeling , achieving integrated collaboration of design, manufacturing, and construction, with error control within ± 3mm

Intelligent manufacturing: using robot automatic welding , CNC plasma cutting (accuracy ± 1mm), and 3D laser scanning detection

IoT monitoring: Pre embedded fiber optic sensors for real-time monitoring of stress, deformation, and temperature data, enabling predictive maintenance

3. Typical application areas

Super high-rise building: core tube+steel structure frame system, construction speed of 3-4 days/floor

Large span space: truss/grid structure achieves column free space of over 100m

Industrial plant: Modular steel frame structure, shortening construction period by more than 50% compared to traditional construction

Emergency medical facilities: a box type modular structure that can be quickly disassembled and assembled, completing the construction of a 1000 bed hospital in 7 days

4. Full cycle service

Design phase: Provide structural optimization solutions, with steel usage controlled between 80-120kg/㎡

Manufacturing stage: EN 1090-2 EXC3 certified factory with an annual output of 100000 tons of steel structures

Construction phase: Professional installation team, 200 ton lifting equipment, daily lifting capacity of 300 tons

Operation phase: Digital twin system, providing full lifecycle health monitoring reports

5. Sustainable development

Green materials: Steel recycling rate of 100%, carbon emissions reduced by 60% compared to concrete structures

Energy saving technology: integrated photovoltaic roof system, intelligent shading components

Recycling: Detachable design, material reuse rate reaches 90% after building demolition

In summary, steel structure buildings, with their core advantages of high strength, lightweight, and intelligence, not only achieve comprehensive improvement in building safety and economy, but also provide sustainable solutions for modern urban development through the deep integration of green construction and digital technology. Its excellent seismic performance, fast construction cycle, and full lifecycle environmental characteristics fully demonstrate the key value of steel structures in promoting the innovation and low-carbon transformation of the construction industry, and will become an important pillar of future smart city construction.