Highlights of steel structure industrial warehouse
1. Construction speed advantage
Steel structure industrial warehouses demonstrate significant advantages in terms of construction speed. Its components can be mass-produced in factories, such as the steel structure warehouse in the Comprehensive Bonded Area. Thanks to this production model, the main body can be installed in just 3 months. Compared with traditional construction methods, the overall construction period of steel structure industrial warehouses is greatly shortened and can be put into use quickly, which greatly saves time and costs, allowing companies to start warehousing operations and other related businesses as early as possible, and gain an advantage in market competition.
2. Space utilization advantage
Steel structure industrial warehouses have the outstanding feature of large spatial spans. There is no need to install too many supporting columns inside, so they can provide a large area of storage space. For example, the three-dimensional warehouse of the Guangdong Petrochemical Refining and Chemical Integration Project relies on this advantage to easily meet large-scale storage needs. Moreover, it can also carry out flexible space design on demand. Take the Cainiao customized factory as an example. It adopts a cantilever structure to further increase storage and sorting functions, making space utilization more efficient and diverse, and can better adapt to different needs. Diverse business needs of enterprises.
3. Environmental protection and energy saving highlights
Environmental protection and energy saving are another bright spot of steel structure industrial warehouses. The steel used is an environmentally friendly material. During installation and dismantling, it will not cause pollution to the surrounding environment. The steel itself can be recycled and reused, which is in line with the current environmental protection concept. During the construction process, steel structure industrial warehouses generate less construction waste than traditional buildings. At the same time, its thermal insulation and other properties are good, helping to reduce energy consumption. For example, through the selection of high-performance insulation materials, reasonable layout of lighting windows, and natural ventilation design, energy consumption can be effectively reduced, energy-saving effects can be achieved, and enterprises can save money. While reducing operating costs, it is also in line with the general trend of sustainable development.
4. Cost-effectiveness advantage
The steel structure industrial warehouse has a high degree of prefabrication, which can effectively reduce construction time and correspondingly save a lot of labor costs. Moreover, the later maintenance costs are low. For example, some projects can reduce a lot of maintenance, replacement and other costs during their entire service life. For example, if the components of a steel structure warehouses are partially damaged, they can be replaced relatively easily and the cost is more controllable. Taken together, the economic benefits it brings are considerable. Whether in the construction stage or the subsequent use stage, it can create good cost advantages for enterprises and is an ideal choice for the construction of enterprise warehousing facilities.
Key points to control when building a steel structure industrial warehouse
1. Key points in site selection and layout
When building a steel structure industrial warehouse, site selection and layout are crucial links, which are related to the rationality and practicality of the entire warehouse construction.
First of all, in terms of site selection, construction land must be industrial land approved by the state and local governments. This is a basic prerequisite. The terrain should be as simple as possible. For example, it is more economical and reasonable to control the aspect ratio of a rectangular site within 1:1.5. The natural terrain slope of a steel structure factory building is generally no more than 5‰, hilly slopes are no more than 40‰, and factories in mountainous areas are no more than 60. ‰ It is appropriate. Complex terrain and environment will have an impact on the cost, and costs in aspects such as foundation and warehouse structure will fluctuate. At the same time, it is necessary to avoid seismogenic faults and earthquake areas with basic intensity higher than 9 degrees, dangerous areas such as debris flows, landslides, quicksand and caves, as well as thick third-level self-weight collapsible loess, newly accumulated loess, first-level expansive soil and other geological geology In harsh areas, it is also necessary to avoid areas with high mining value, such as mineral deposits, goafs, ancient wells, ancient tombs, and areas with dense pits.
Moreover, the warehouse land must meet the production process and transportation requirements, and land for expansion should be reserved. The soil distribution area that is beneficial to earthquake resistance should also be selected. Construction should not be selected downstream of the reservoir and near the flood control embankment. If there are ancient tomb ruins underground or above ground, When constructing ancient buildings and cultural relics, it is necessary to obtain the disposal opinions and approval documents of the relevant departments, and the foundation bearing capacity of the construction land must also meet the requirements of the construction regulations. In addition, the impact of high temperature, heavy snow, rain, strong winds and lightning strikes on the steel structure must be considered. The best location for the warehouse is higher and has good drainage to reduce the risk of floods. It must also have convenient transportation, facilitate cargo transportation, and be far away from the site. In densely populated areas such as residential areas, schools, and hospitals, the impact on the surrounding environment should be reduced, comply with local planning requirements, and avoid occupying ecologically sensitive areas such as cultivated land and forest land.
In terms of layout, the factory area should be reasonably divided into functional areas to ensure that goods are stored in categories, clear signs should be set up to facilitate the search for goods, passages should be kept clear to facilitate the transportation of goods, and a certain safety distance should be reserved to prevent damage to goods. For underground projects, planning for drainage and pipeline layout must be done. The layout of the warehouse must also be comprehensively considered, such as setting up reasonable lighting and ventilation facilities to ensure a suitable internal environment, and equipping with necessary fire protection facilities, such as fire extinguishers, fire hydrants, etc., to meet the safety and use needs of the warehouse. In terms of road transportation, it is necessary to develop the shortest transportation route according to the production sequence, reduce the cost and time spent on material handling, improve the efficiency of production operations, and make the logistics and transportation of the entire factory area smoother and more efficient.
2. Key structural design
The structural design of steel structure industrial warehouses includes many key points, which are related to the safety and stability of the warehouse.
Thermal insulation and fire protection design is essential because steel has high thermal conductivity. Once a fire occurs and the temperature rises to a certain level, the strength of the steel will decrease, which will affect the safety of the entire structure. Therefore, thermal insulation and fire protection measures must be taken in advance. For example, thickening the roof insulation layer or setting up an overhead layer to form a ventilated roof can reduce the threat of fire hazards to the structure.
The design of the roof system must be comprehensively considered based on various conditions. Appropriate methods must be selected based on local climate, warehouse usage, load-bearing requirements and other factors to ensure that the roof can effectively withstand wind, rain, snow and other natural factors while ensuring good drainage performance. etc., to create a stable environment inside the warehouse.
The setting of temperature expansion joints is also critical. Since the steel structure will expand and contract due to temperature changes, if expansion joints are not set, it will easily cause deformation and other problems. For example, the expansion joints of houses in earthquake zones are integrated. When the house is long, you can set up a 800mm – 1400mm wide post-casting strip every 40m during construction, and set the position of the post-casting strip to the point where the structure is affected by the stress. In the smallest section, and in the top floor, bottom floor, gables, and walls between inner longitudinal wall end bays where temperature is greatly affected, structural and construction measures such as appropriately increasing the reinforcement ratio should be adopted to reduce the number of expansion joints and anti-seismic joints.
In terms of the support system, it is necessary to ensure that it can provide sufficient stability for the entire steel structure, and arrange the support components reasonably to make the force transmission more smooth and clear, and to avoid stress concentration in the structure. At the same time, the seismic resistance design of the warehouse should also be paid attention to, such as making the column network of the building evenly and symmetrically arranged, so that the center of the building and the stiffness center are at the same position, reducing the spatial torsion effect, and striving to achieve no or few sudden changes in the vertical stiffness. , balance the horizontal and vertical seismic resistance, making the structure more stable and reliable. In addition, considering the high temperatures that may be encountered, the heat-resistant design of the warehouse structure cannot be ignored. From material selection to structural methods, preparations must be made to deal with the impact of high temperatures to ensure that the warehouse can be used safely under different working conditions.
3. Pay attention to the construction process
In the construction process of steel structure industrial warehouses, there are many key points that need to be controlled to ensure that the construction proceeds smoothly and the structural quality meets the standards.
The embedding of anchor bolts has high precision requirements, and it plays a fundamental role in ensuring the positioning stability of the steel structure. The location, depth, and verticality of the buried anchor bolts must be strictly implemented in accordance with the design standards. Once there is a deviation, subsequent steel columns and other components may not be installed accurately, affecting the integrity and stability of the entire steel structure, so before burying During the process, precise measurement, calibration and other means must be used to ensure that it meets the requirements.
During the hoisting process, the operating points of steel columns, steel beams, etc. must be strictly followed. When lifting steel columns, ensure that the lifting points are properly selected and the lifting speed is stable to avoid shaking and collision of the steel columns during the lifting process. When in place, the anchor bolts must be accurately aligned and slowly lowered for installation. When hoisting steel beams, attention must also be paid to the setting of lifting points to ensure the balance of the steel beams in the air. When connecting to steel columns, bolt connections or welding operations must be performed in strict accordance with the installation specifications to ensure that the connection is firm and reliable. The entire hoisting process must ensure Ensure construction safety, prevent components from falling and other accidents, and at the same time ensure the installation quality of the structure.
The installation of the crane beam system is also a key and difficult point in the construction. The installation of the crane beam must ensure that its elevation and axis position are accurate, that it fits closely with the connection parts such as the corbels, and that the quality of welding or bolting is up to standard. In addition, the crane beam must bear the crane load in subsequent use. During the installation process, The flatness, straightness, etc. are strictly controlled to ensure that the entire crane beam system can operate normally, provide reliable support for material lifting and other operations in the warehouse, ensure the smooth progress of the entire construction process, and ultimately create a high-quality Steel structure industrial warehouse.
Steel structure industrial warehouse case display
1. Comprehensive Bonded Zone Bonded Industrial Park Case
The steel structure warehouse construction among the bonded industrial park infrastructure projects is quite bright. As a 2023 project, with a total investment of 43 million yuan, this project is an important carrier for the Comprehensive Bonded Area to implement trade first and use trade to drive manufacturing gathering. The entire project plans to construct a total of 6 individual buildings, all of which were completed and put into operation in June this year.
Among them, the construction scale of steel structure warehouses is considerable, including 4 bonded warehouses with a total area of 58,000 square meters, and two bonded workshops with a total area of 31,000 square meters. During the construction process, the prefabricated steel structure construction method was adopted, and the processing, production and construction processes were all modular operations, just like “building blocks”. At the same time as the foundation construction of the project, the steel columns, steel beams and other building main bodies were pre-fabricated in the processing plant. After the foundation construction was completed, they were installed seamlessly. The construction speed was very fast, and 3 buildings were completed in only 3 months. The main body of the steel structure warehouse is installed to minimize the generation of waste and pollutants. There is neither dust nor harsh noise during the entire construction process.
These steel structure warehouses have multiple functions, with floor heights reaching 10 meters. In order to accommodate multi-layer shelves, the ground is paved with 15 centimeters of reinforced concrete, and their load-bearing capacity is much higher than that of ordinary warehouses on the market. At the same time, in order to reduce the impact of temperature on stored goods, the warehouse is surrounded by 10 cm thick rock wool boards, which can keep the temperature inside the warehouse at a constant range. They can integrate design and research and development, display experience, cross-border transaction distribution, international conferences, academic research and many other functions into one, and are high-energy platforms for open economies. Warehouse #6, as Cainiao’s customized factory, also uses a cantilever structure to divide the part into 2 floors, which not only expands the storage space, but also facilitates sorting and delivery. It meets the actual needs of cross-border e-commerce companies and provides cross-border e-commerce services. The development of other industries has provided strong assistance.
2. Feed factory base case
The total construction area of the steel structure warehouse at the feed mill base is about 3,000 square meters. The overall project adopts the roof steel structure + wall brick-concrete structure model. The construction is meticulous and it is a relatively important project.
In terms of material use, it selected steel structures, color steel plates and other materials provided by Canglong Group. Kecai steel plate has many advantages, such as corrosion resistance, it has the barrier layer protection function of aluminum and the sacrificial protection function of zinc. In terms of heat resistance, the aluminum-zinc alloy steel plate will not undergo any discoloration or deformation in a high temperature environment of 315°C. Reflective layer, 55% Al-Zn alloy plated steel is highly reflective, making it a barrier against heat. These material advantages provide a strong guarantee for the quality and performance of the warehouse, allowing the warehouse to better perform its storage and other functions.
3. Petrochemical refining and chemical integration project case
The steel structure three-dimensional warehouse in the petrochemical refining and chemical integration project is eye-catching. The steel structure three-dimensional warehouse of this project is large-scale. The polypropylene three-dimensional warehouse has an area of about 12,900 square meters and a span of about 24 meters. The building structure is assembled from three steel columns, with a maximum height of nearly 35 meters and a total installed capacity of about 3,000 tons. The three-dimensional warehouses of the entire solid storage and transportation facility project are all steel structure buildings. The total steel structure is more than 107,000 tons, 35 meters high, 83 meters wide, with a total length of 800 meters, and a total construction area of more than 35,000 square meters. meters, with a total of 68,400 cargo spaces, which can store approximately 100,000 tons of polyolefin products. It is the largest intelligent three-dimensional packaging warehouse under construction in the Asian petroleum and petrochemical industry so far, and is also the first intelligent three-dimensional warehouse for polyolefin products in PetroChina.
In terms of construction progress, as the last main beam was hoisted and positioned and installed, its steel structure main body was successfully capped. The completion of this key node marked the phased results of the project construction. During the construction process, despite facing many outstanding difficulties such as heavy tasks, high labor intensity, hot weather, frequent abnormal weather, and the risk of falling from high-altitude operations at all times, the Storage, Transportation and Production Department of Guangdong Petrochemical Company, together with all parties involved, based on the on-site The construction status is gradually followed up, revised repeatedly, and the construction plan is adjusted in real time. We work together to formulate measures to meet the steel structure installation deadline. We conduct pre-evaluation of the safety of high-altitude operations, assurance of installation quality, and process control. We strictly control the process, inspect the quality, and ultimately ensure the safety. It successfully achieved the important construction progress of capping the main body and fully demonstrated the construction achievements of steel structure warehouses in large-scale industrial projects.
The development prospects of steel structure industrial warehouse
1. Industry trend analysis
At present, in the construction industry, steel structure industrial warehouses are showing a series of positive development trends affected by many factors. From the perspective of market demand, with the development of the global economy and the acceleration of urbanization, the overall demand for the construction industry continues to grow. As an efficient and environmentally friendly building structure, steel structures are used in many fields such as residential, commercial, industrial and public buildings. The scope of application is being further expanded. For example, in the industrial field, more and more large-scale manufacturing companies are more inclined to choose steel structure industrial warehouses to meet their warehousing and production supporting needs; in the logistics industry, steel structures have also become the first choice for the construction of large-scale intelligent warehousing centers due to their advantages. , such as the logistics hub warehouses built by some e-commerce giants, mostly use steel structures to carry large amounts of goods and achieve efficient logistics operations.
In terms of technological innovation, new materials, advanced processes and intelligent manufacturing technologies continue to emerge and be applied, driving the continuous optimization of the construction process of steel structure industrial warehouses. For example, BIM technology can provide a comprehensive information model for steel structure buildings, realize informatization and collaboration in design, construction and operation management, and greatly improve the efficiency and quality of steel structure buildings; the introduction of automated production lines and intelligent equipment not only It improves production efficiency and product quality, and also reduces production costs, making the manufacturing of steel structural components more precise and efficient.
Policy support also adds impetus to the development of steel structure industrial warehouses. The country’s support for green buildings and environmental protection industries has been increasing. As a green building material, steel structure’s advantages in energy saving, emission reduction and environmental protection are in line with the country’s requirements for green buildings and sustainable development. In addition, the government has introduced a series of policy measures to promote the development of the steel structure industry, such as promoting the development of prefabricated buildings and strengthening the quality supervision of steel structure products, which has created a good policy environment for the healthy and standardized development of steel structure industrial warehouses.
2. Future application direction
Looking to the future, steel structure industrial warehouses are expected to expand their application directions in more fields and different scenarios. Customized construction in conjunction with the development of emerging industries will be an important trend. For example, with the rise of the new energy vehicle industry, its parts storage and vehicle parking have special requirements for space and structure. Steel structure industrial warehouses can customize spans, heights and internal layouts according to the characteristics of the industry to meet the classified storage of parts such as batteries and motors and the orderly parking and turnover of vehicles; for the electronic information industry, steel structure warehouses can optimize the design to create a constant temperature, constant humidity and anti-static environment to properly store various precision electronic components.
At the same time, in order to better adapt to the changing trend of new demands such as intelligent warehousing, steel structure industrial warehouses will also be continuously upgraded. On the one hand, more space will be reserved in the structural design to facilitate the installation and wiring of intelligent equipment, such as adding fixed points for facilities such as bridges and cable ducts, so that automated sorting systems, smart shelves, and logistics robots can be more conveniently integrated into warehouse operations; on the other hand, deep integration with intelligent software such as warehouse management systems (WMS) can achieve accurate management of inventory, real-time tracking of goods, and intelligent scheduling of storage space, improve overall warehousing operation efficiency, reduce labor costs, and create a more efficient and intelligent warehousing environment to fully meet the high standards of modern logistics and industrial development for industrial warehouses.
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