5.1.3 The overall appearance inspection of the curtain wall shall include the following contents: overall integrity, anti leakage, anti deformation and other functions; Whether the top, bottom and side sealing, settlement joint, expansion joint, shockproof joint treatment and lightning protection system of the curtain wall meet the design requirements.
5.4.7 The sealing performance of various sealing materials shall be mainly checked, and the areas where the sealing materials are easy to age can be selected for on-site water spraying test..
If necessary, water spraying test is used to check the leakage.
5.4.5 The building curtain wall shall be checked for indoor drainage devices in frost areas; When the building curtain wall is in frost free area and the drainage device can be set outdoors, check whether there is a windproof device.
5.2.8 Other parts to be inspected shall also include column expansion structure, closure structure, etc.
5.3.6 For stone or artificial panel curtain wall, check the assembly structure of panel support, and check whether the inverted stone ceiling has taken effective measures to prevent stone falling.
5.3 Curtain wall panel inspection 5.3.1 For glass curtain wall, check the position, quantity, specification, connection method and deformation of glass support plate, and the type, specification, appearance and fastening of fasteners fixing the support plate; The matching size of the glass panel and the profile notch, the embedded depth of the hanging plate and the limiting measures.
5.4.3 The following items shall be checked for the fireproof structure: the structure, position and laying quality of the fireproof sealing; Fireproof sealing quality of fireproof structure and surrounding components; Location and size of fire rescue port; Whether the ventilation and smoke exhaust are smooth and whether the fire rescue window is blocked.
5.3.4 For the assembly structure of glass curtain wall panel with concealed frame and semi concealed frame, check the specification, quantity and spacing of fixed clips of glass assembly components, and check whether the fixed clips are loose, deformed and damaged.
5.2.5 The existing building curtain wall shall be checked to see if there are structures with potential safety hazards such as simple adhesive bonding of stone materials and simple adhesive bonding of decorative components.
5.4.2 The main inspection contents of the opening window structure include: whether the handle and screw are loose, whether the opening and closing of the opening fan are smooth, whether the handle, screw, sliding brace or wind brace are missing, and whether the opening fan cannot be closed and locked; Whether the area of a single manually opened fan exceeds 2 square meters; Specification, quantity, appearance and connection quality of hardware; Position, quantity, specification, connection mode and deformation of supporting plate; Anti falling measures for hook type and external open type opening fans; Sealing condition of opening fan and opening frame; Whether the manual opening fan meets the requirements that the opening angle should not be greater than 30 ° and the opening distance should not be greater than 300mm; Corresponding positions of two layers of structural adhesive inside and outside the glass.
5.4.6 For the glass curtain wall, check whether the thermal bridge parts such as the sides around the opening, parapet, cantilevered members and wall attached members have taken measures to enhance the thermal insulation, prevent condensation and prevent leakage.
5.4.4 Unit curtain wall or exposed frame curtain wall shall be checked for drain holes.
5.2.7 Lightning protection structure mainly checks the following contents: connection resistance and grounding resistance: lightning protection structure, setting position and grid size.
5.2.2 For exposed frame or semi concealed frame glass curtain wall, check whether the external glass pressing plate is set continuously, and check the specification, connection mode and deformation of the pressing plate; Whether the heat insulation strip is continuously installed and fixed; Specification, type, appearance and fastening of buckle cover; Sealing and gluing between buckle cover and panel; Tightness of the connection between the buckle cover and the outside with the glass pressing plate, and whether there is looseness, deformation or sliding; Straightness of the cover and sealing of the joints.
5.2 Curtain wall support structure and connection inspection 5.2.1 The connection inspection of beam and column shall include the following contents: connector type and specification; Beam deformation and connection quality.
5.1.2 The inspection of curtain wall components and structures of existing buildings shall include the following contents: overall appearance inspection of curtain wall, curtain wall support structure and connection inspection, curtain wall panel inspection, curtain wall opening window inspection and fire protection structure inspection, curtain wall drainage structure inspection, curtain wall insulation, leakage prevention, condensation prevention structure inspection, etc.
Technical Specification for Safety Inspection of Existing Building Curtain Walls T/CECS990-2022 Inspection of Components and Constructions 5 Inspection of Components and Constructions 5.1 General Provisions 5.1.1 Inspection of components and structures of existing building curtain walls is the inspection content of curtain wall safety inspection.
5.3.2 The glass curtain wall shall check whether the emergency broken glass meets the following requirements: the warning signs shall be set, and the laminated glass shall not be used.
5.2.6 The following items shall be checked for the deformation joint connection node: whether the deformation joint structure and construction treatment are standardized; Whether the flatness of the cover meets the requirements, and whether the cover is concave and deformed; Whether there is leakage at the joint of the deformation joint cover and the curtain walls on both sides.
5.3.3 The glass curtain wall shall be checked for the existence of hollow glass structure with large and small pieces on four sides.
5.2.4 The structure of full glass curtain wall mainly checks the following contents: connection between glass and hanging fixture; Type and specification of glass; Glass rib, panel height and thickness; Type, size and injection quality of structural adhesive; Connection quality of glass rib clamp; The clearance between the bottom of the suspended glass and the cushion block; Horizontal force transmission structure of suspended glass; Mosaic size of glass and notch, etc.
The components of existing curtain walls, their connections, combinations and other details shall be inspected to meet the functional requirements of curtain walls.
5.2.3 The structure of point supported glass curtain wall mainly checks the following contents: opening position, opening quality and hole wall edging; Appearance and connection quality of connectors; Working conditions of cable tension and rigging adjuster; Connection quality between tie rod (cable) support system and main structure; Connection quality of glass rib clamp; Connection quality between adapter and support system, etc.
5.3.5 Metal curtain wall panel assembly structure shall mainly check the specification, quantity and fixing condition of panel fixing padeye.
5.4 Curtain wall opening window and structure inspection 5.4.1 Curtain wall structure inspection includes opening window structure inspection, fire protection structure inspection, drainage structure inspection, thermal insulation, anti leakage, anti condensation structure inspection, etc.
