Detection Business

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Building Curtain Wall Detection

Building curtain walls include glass curtain walls, stone curtain walls, metal curtain walls, etc. The safety of building curtain walls is highly valued by the construction industry and the government. Laws and regulations have been gradually promulgated across the country requiring the strengthening of safety management and testing of building curtain walls. The Central Research Institute of CTC conducts disciplinary research, technical services, and testing and appraisal work in areas such as research and development of safety performance testing technologies and equipment for building curtain walls, on-site testing and appraisal, standard development, training, and technical consulting and services. It has developed a series of non-destructive on-site testing technologies and equipment in directions such as tempered glass spontaneous breakage risk detection and prediction of overall loosening and falling of curtain wall panels. As a third-party testing institution with qualifications for building curtain wall safety testing and appraisal, in recent years, relying on the disciplinary advantages of different specialties and through continuous expansion, it has built a domestically leading professional institution integrating advanced testing technologies and testing equipment for safety performance testing, appraisal, and consulting services of existing building curtain walls.

Testing Products

Curtain wall glass, curtain wall stone, aluminum alloy profiles, steel components, hardware, building sealants, building structural adhesives, etc.

Testing Items

Physical and Mechanical Properties (tension, compression, bending, shear, hardness, elastic modulus, Poisson's ratio, etc.)

Optical and Thermal Parameters (visible light transmittance, visible light reflectance, thermal transmittance, etc.)

Structural Performance (curtain wall panel vibration frequency, anchor pull-out, bolt tightening force, bonding strength, structural calculation, etc.)

Testing Standards

GB/T 21086-2007 Building Curtain Walls

GB 16776-2025 Silicone Structural Sealants for Building

GB 15763.2-2025 Safety Glazing Materials in Building — Part 2: Tempered Glass

GB 50009-2012 Load Code for the Design of Building Structures

JGJ 102-2003 Technical Code for Glass Curtain Wall Engineering

JGJ/T 139-2020 Standard for Quality Inspection of Glass Curtain Wall Engineering

JG/T 455-2014 Tempered Glass for Building Doors and Windows

JGJ 133-2001 Technical Code for Metal and Stone Curtain Wall Engineering

DB11/T 1812-2020 Technical Specification for Safety Testing and Appraisal of Existing Glass Curtain Walls

T/CECS 1171-2022 Standard for Safety Appraisal of Existing Stone Curtain Walls

DG/TJ 08-803-2013 Technical Specification for Safety Performance Testing and Evaluation of Building Curtain Walls

GB/T 30020-2023 Test Method for Glass Defects — Photoelastic Scanning Method

Service Advantages

The Research Institute's routine performance testing focuses on room temperature static and dynamic mechanical properties, among others. It is equipped with key equipment including universal testing machines with full load range (5 N to 200 tons), electronic fatigue testing machines, hydraulic fatigue testing machines, electronic creep testing machines, and electronic stress rupture testing machines. Curtain wall on-site testing equipment includes curtain wall glass surface stress meters, photoelastic scanners, pull-out testers, endoscopes, infrared thermal imagers, etc. It holds qualifications including CNAS and construction engineering testing.