China QHHK Steel Structure Company News

What Is The Difference Between Span And Clear Span? The terms “span” and “clear span” are related but slightly different concepts in the context of buildings and structures:   1. Span: Span refers to the horizontal distance between two supporting points in a structure or building. It is the distance between the points where a load or weight is supported, and it can be measured in various ways, such as between two columns, two walls, or two supports. Span generally includes any intermediate supports, such as columns, walls, or other structural elements, that are present along the length of the structure. 2. Clear Span: Clear span, on the other hand, refers to the horizontal distance between two supporting points in a structure or building that is free from any intermediate support. It is the uninterrupted distance between two points where a load or weight is supported without any additional support in between. In other words, clear span refers to the open space between supports without any obstructions, such as columns or walls.   In summary, while both span and clear span refer to the horizontal distance between two supports in a structure, the key difference is that span includes any intermediate supports that may be present, whereas clear span specifically refers to the unobstructed distance between two supports without any intermediate support in between. Clear span is often used to describe the open and uninterrupted space in a building that can be utilized for various purposes, such as open floor areas, storage, assembly lines, recreational activities, and more.   What Is Effective Span Or Clear Span Building? The terms “effective span” and “clear span” are often used interchangeably in structural engineering and construction, and they refer to the same concept. Both terms describe the horizontal distance between two supporting points in a structure or building that is free from any intermediate support, such as columns or walls and is uninterrupted by any additional supports.   The effective span or clear span of a structural element, such as a beam or a roof truss, is an important consideration in structural design and construction, as it directly affects the load-carrying capacity and performance of the element. A longer effective span or clear span generally requires larger and stronger structural members to resist the applied loads and prevent excessive deflections or deformations. On the other hand, a shorter effective span building or clear span building may allow for smaller and more economical structural members.   The effective span or clear span is typically calculated based on engineering calculations and analysis, taking into consideration various factors such as the material properties, design loads, and building codes and standards applicable to the project. It is an important parameter that structural engineers use to design safe and efficient structures that can meet the specific requirements of the project.

What Is Clear Span Steel Buildings? Clear span steel buildings refer to pre-engineered steel buildings that are designed without any interior columns or supports, providing a wide, uninterrupted space within the structure. “Clear span” refers to the distance between the two opposite walls or supports in the building, which is entirely open without any obstructions. Clear span steel buildings are known for their versatility and are commonly used in a wide range of applications, including industrial, commercial, agricultural, recreational, and residential purposes. They can be used as warehouses, factories, workshops, garages, aircraft hangars, sports facilities, event venues, and more. One of the primary advantages of clear span steel buildings is the flexibility they offer in terms of interior layout and space utilization. Without any interior columns or supports, the entire space within the building can be used efficiently for various purposes, allowing for maximum usable floor area and unobstructed movement of people, vehicles, or equipment. Clear span steel buildings are also known for their durability, cost-effectiveness, and quick construction time compared to traditional building methods. Overall, clear span steel buildings are a popular choice for many different applications due to their versatility, efficiency, and durability. They provide wide, open spaces that can be customized to meet specific needs, making them a practical solution for a wide range of building requirements. What Are The Types Of Clear Span Steel Buildings? Clear span steel buildings come in various types or styles, each designed to suit different purposes and requirements. Some common types of clear span steel buildings include:   Clear Span Steel Buildings These are the most common type of clear span steel buildings and are designed with a completely open interior space without any columns or supports. They are versatile and widely used for a variety of applications, such as warehouses, manufacturing facilities, workshops, and recreational facilities. Clear Span Aircraft Hangars These are specialized clear span steel buildings designed to house aircraft and provide ample space for maneuvering and storage. They typically have wide openings for aircraft access and can accommodate various aircraft sizes, making them suitable for private, commercial, or military aviation. Clear Span Sports Buildings These are substantial steel buildings with clear spans that are used for sporting and recreational events. Examples include indoor courts, gymnasiums, and arenas. They provide room for seating arrangements and large, unrestricted expanses for sporting events, making them adaptable and flexible for a variety of sports and events. Clear Span Agricultural Buildings These are made specifically for agricultural purposes, such as barns, shelters for livestock, equipment storage, and hay storage. They can be tailored to meet particular agricultural demands and offer enough room for storing agricultural goods, equipment, and cattle. Clear Span Retail Buildings These are designed for retail or commercial use and can include showrooms, retail stores, and commercial complexes. They offer wide, open spaces for retail displays, merchandising, and customer flow, allowing for efficient use of space in a retail or commercial setting. Clear Span Recreational Buildings These structures are intended for leisure activities and include community centers, sports arenas, and event spaces. They are perfect for indoor sports, exhibitions, concerts, and other big events because they offer spacious, unrestricted areas for gatherings and leisure activities.   These are but a few examples of the various clear span steel structure designs that are offered for sale. The design and construction of clear span steel buildings can be altered to meet particular needs and can be tailored to a variety of uses and purposes.   Why Choose QHHK Steel Structure Structural safety and product quality have always been the main core competitiveness of since its establishment 23 years ago. The first principle of QHHK to manufacture steel structure buildings is to allow customers’ buildings to have a longer lifespan. 2 factories, 23 years of experience, 2280 completed projects, 1.5 million square meters completed. These represent the recognition and trust of our customers. Our philosophy is to make customers 100% satisfied and 100% assured.

Steel Building Specification - Secondary Structure Bracing Structure The portal frame，purlin，Bracing system and the metal cladding rely on each other through reliable connection and support. The main structure of the portal frame load-bearing structure divided into two types according to the kind of the rigid frame: the clear span structure without interior columns and the multi-span continuous structure with interior columns.   According to the specific project, it can also be used in single and multiple slopes, as well as in different spans and heights. Most of the foundation types adopt reinforced concrete independent foundations. According to the diverse requirements of the building for lateral displacement and deformation, from the perspective of saving steel, a variable-section beam-column, foundation hinge structure scheme, or an equal-section column variable-section beam, foundation rigid structure scheme can be adopted.   Bracing System The main functions of the bracing system are: 1) The strut beam transmits the longitudinal horizontal force. 2) The horizontal bracing resists the horizontal force transmitted between the columns and roof beams. 3)Flange Bracing use to keep the stability of the outer plane 4) All bracing systems, together with purlin or wall girt and portal frames, which form a space system, which ensures the overall function of the space of the structure, bear, and transfers horizontal loads, and ensure the stability and convenience during the installation. Purlin and Wall Girt The main component types of purlins and wall girt are C-type or Z-type steel, and the size of the cross-section needs to determine through the load calculation. Compared with the Z-section, the mechanical properties of the C-section are quite different, C section steel connects to the portal frame bolted. The Z-section can rigidly connect by substantial overlap, which can calculate as a continuous beam.   Therefore, in addition to door and window openings and other specialized areas, Z-sections should be preferred. The distance between the purlin and the wall girt usually not exceed 1.5 meters.     Application Range The application of the portal frame light steel building, which includes single-story industrial buildings, includes Warehouse, Workshop, and Storage Building, Commercial Building includes Supermarkets and Exhibition halls, and Agricultural Building includes Metal Barn, Poultry, and livestock building.     Column and Beam H-section makes the portal frame columns and beams, which is primary steel framing. The various loads transmitted to the foundation through the columns and beams. Strut and Bracing Strut Beam and Bracing are the second structure, bracing made by angle steel or rod steel, strut beam made of steel pipe, which forms a closed system with the bracing. C and Z Purlin C-shaped steel and Z-shaped steel are used to fix the metal cladding, and bear the load transmitted from the roof and wall panels, and spread it to the columns and beams.        

Steel Building Specification-Multi-stories Steel Frame     The multi-stories steel frame is composed of steel beams and columns and can withstand vertical and horizontal loads. The frame structure should meet not only the requirements of strength and stability but also ensure the overall strength of the frame The steel frame has ample internal space and flexible layout, which can meet the needs of different buildings, and the construction speed is fast. The steel frame structure mainly made of steel, which is one of the main types of building structures.     Steel Frame with Crane Beam Crane beams used to load crane inside the workshop, which installed on the upper part of the frame and works together with the steel structure building. Features: The crane beam used to support the operation of the Crane, which mostly used in the steel structure factory building. There is a crane rail on the crane beam, and the crane travels back and forth on the crane beam through the railing. The crane beam is similar to the steel beam, and the difference is that the stiffeners welded on the web, which use to provide support for the lifting of heavy loads