Composite color-coated steel plates are classified into four categories according to the core material: polystyrene color-coated steel sandwich panel, rock wool color-coated steel sandwich panel, polyurethane color-coated steel sandwich panel, and phenolic color-coated steel sandwich panel. I. Scope of application Color-coated steel sandwich panel is a multi-functional new type of building material, which has the characteristics of heat preservation, heat insulation, sound insulation, light weight, waterproof, earthquake resistance, and decoration. It is widely used in non-load-bearing walls, roofs, ceilings of industrial and civil buildings, and load-bearing wall panels of single-layer combined houses. It is mainly used for partitions and ceilings in clean workshops of electronics, chemicals, medicine, biology, food, and hygiene. II. Specifications and performance of color-coated steel sandwich panels This color-coated steel sandwich panel,

Steel structure reticulated shell structure Steel structure reticulated shell structures are currently commonly used roof forms for large-scale stadiums, industrial plants, theaters, waiting halls and other buildings in China. This new style of structure relies on the load-bearing capacity of the steel itself, connecting steel columns together with bolted spheres to form a crisscross support, forming roof spaces of various shapes. From small meeting rooms of a few meters to industrial plants with spans of hundreds of meters, these are all suitable ranges for spatial reticulated shell structures. 1. The steel structure reticulated shell structure has a free and expansive form. It incorporates both the rhythmic beauty of classical architecture and the romanticism of modern sculptural art. Therefore,

Steel Structure Symbols 1. Function and design values of action effects F - Concentrated load; H - Horizontal force; M - Bending moment; N - Axial force; P - Pre-tightening force of high-strength bolts; Q - Gravity load; R - Support reaction; V - Shear force. 2. Calculation indicators E - Elastic modulus of steel; Ec - Elastic modulus of concrete; G - Shear modulus of steel; Nat - Design value of tensile capacity of individual anchor bolts; Nbt, Nbv, Nbc - Design values of tensile, shear and bearing capacity of a bolt; Nrt, Nrv, Nrc

I. Steel Structure Terminology 1. Strength: The ability of a member's cross-section material or connection to resist failure. Strength calculation is the calculation to prevent the failure of structural members or connections due to exceeding material strength. 2. Load-carrying capacity: The maximum internal force that a structure or component can withstand without failure due to strength, stability, or fatigue; or the maximum internal force when a plastic analysis forms a failure mechanism; or the internal force when deformation reaches a state unsuitable for continued load bearing. 3. Brittle fracture: Generally refers to the brittle fracture that occurs suddenly in a steel structure under tensile stress without any warning plastic deformation. 4. Strength standard value: National standard

I. Poor Bending Properties (T-bend): Characteristics: When the steel is bent 180 degrees, cracks and peeling occur in the coating of the processed area. Causes: 1. Excessive pre-treatment. 2. Coating is too thick. 3. Over-baking. 4. The base coat and top coat are from different manufacturers, or improper use of thinner. II. Poor Hardness (Pencil Hardness): Characteristics: When a drawing pencil is used to forcefully draw a line on the coating surface, after wiping, a scratch remains on the surface. Causes: 1. Low furnace temperature, insufficient coating curing. 2. Inappropriate heating conditions. 3. Coating thickness exceeds the specified thickness. III. Protrusion: Due to steel

Steel structures are not unfamiliar to us. With a little attention, you'll find steel structures everywhere in our daily lives. Let's take a detailed look at some specific applications of steel structures: 1. Steel Structure Entrance Halls: These are auxiliary halls often built as extensions to existing buildings or factories. These entrance halls are mostly designed using computers, have short construction periods, and relatively less work, resulting in faster installation. 2. Steel Structure Factories: The roofs and exterior walls of steel structure factories often adopt lightweight structures, usually using H-shaped steel for beams and columns,...