There is a basic column pitch for the crane platform.
The factory building is equipped with a frame-stretching machine and supporting equipment base pumping. The underground structure is complex, and the deep surface load for the surface and the Qi surface are all protected by pressure-type steel plates.
At the same time, naked section.
Rice made technical improvements.
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One-for-one workshop overview The thin-slab continuous rolling project is a major infrastructure renovation project during the period of the 9th Five-Year Plan of Baotou Steel. The process is designed by Siemag Germany (designed by Division S, and the design of the plant is designed by Baotou Steel Design Institute.
The continuous rolling workshop is the first time that the structure of the senior engineer of Tian Fengnan was born after the first author of the project, Tian Fengnan.
It is worth pointing out that at that time, due to the limitations of process operating conditions and other reasons, combined with the lack of engineering experience in the use of concrete-filled steel tube structures, this structure was applied only in the coaxial settler/first regenerator frame and failed to Two regenerator framework applications.
Through this successful practice and conclusion, it will become a truly two-tube framework for concrete-filled steel tube structures in future projects.
In the construction of concrete-filled steel tubes, concrete is cast in closed steel tubes and the quality of the concrete in the tubes can be inspected. Ultrasonic testing methods are currently available, but qualitative analysis with or without defects can only be performed and the requirements for quantitative analysis cannot be met.
This is a topic to be studied, and the method of motion test should be introduced, like the pile foundation test.
The application of pipe concrete structure in petrochemical engineering has unique advantages.
The number of pipelines in petrochemical companies is large and the number of pipelines is unmatched by any industrial sector.
Many major equipments in petrochemical enterprises, such as large and medium-sized towers with various capacities for various purposes, are all manufactured products of rolled steel cylinders.
The petrochemical industry has decades of experience in the manufacture and installation of steel pipelines and tubular equipment with state-of-the-art technology.
Petrochemical construction units generally have a permit for high-voltage equipment, automatic pipe cutting machines, and the end-to-end curve of the pipe can be staked out by a computer to achieve accuracy.
The promotion and application of concrete-filled steel tube structures in petrochemical engineering can, on the one hand, bring into play its own superior conditions and at the same time obtain good economic benefits and establish a new generation of petrochemical structures.
References in articles.
Petrochemical company reactor.
See Regenerative Framework Design Specification Lecture Materials.
1 porridge skillfully.
Sun Kequan.
Steel tube stick soil structure and its application .
Petrochemical architectural design, 1 Wang Tuo Wang Handong, Wang Mogeng.
Design and Calculation of Concrete - filled Steel Tube Concrete Towers .
Special structure, 1 field, claws, namely a steel tube concrete structure design and construction regulations.
The most important workshop after the design of the throat casting machine platform is the main building of the steel plant.
Its characteristic is that the top height of the large tonnage of the crane tonnage is large, and it is equipped with a crane platform and a heavy working system at the top of the rail, and the two span factory buildings have three partial spans respectively.
The underground structure is complex, and there are rack finishing mills and supporting equipment foundations. The basic deep-up load is the steel structure for the above-ground structures, and only the lower limbs of the truss columns are made of concrete-filled steel tubular double-limb columns.
Plant construction area is about Qiaozhu network layout diagram shown in Figure 1 Bu who occupied a person figure column net layout roof system The workshop roof with double-span double-sided drainage system, the roof is equipped with strip lighting and ventilation skylights.
The cliff face girders and purlins take into account that the parallel chord support struts have relatively poor rigidity, and they must be equipped with joists or brackets. The construction is relatively complicated and the roof is suspended by hoisting equipment process pipelines and other loads. The roofing load-bearing structure In the form of welded I-beam roof beams, the roof girder is connected to the framing post.
In order to increase the rigidity of the roof and save the outsourcing funds, we used the steel from Baosteel imported from South Korea for many years to cut it into two and then welded a steel plate. This made full use of the characteristics of the wide flange of steel and increased the number of strips. Stiffness.
In addition, there is a bracing connection between the moulding strip and the roof girder. This reduces the height of the girder section. The girder can be calculated on the basis of a three-span continuous beam and a vertical support of the roof girder. See Figure Support System Due to the above-mentioned form of the girder and purlin, the roof of the design is only provided with the upper chord support, so that the horizontal and horizontal support arrangement forms a closed plane parser, so as to ensure the lateral stability of the roof girder and effectively transmit the level of the roof. Load, and together with the roof insulation pressure type 嵘 evening figure inlay node plate together to ensure the overall rigidity of the roof.
In addition, the wiping strip can double as a longitudinal tie rod to reduce the distance between the lateral fulcrums of the girder and reduce the cross section of the girder.
The roof support indication is shown in Figure 19. The roof of the roof is made of heat-preserving steel sheet, that is, the upper and lower two-layer pressure-type steel plates, and the middle thickness is 80 thick glass wool.
The roof slope is drained using double-slope organized drainage.
The basic spacing of the mouldings passes through the above-mentioned roof design, which makes the roofing system change the phenomenon in which the rods are criss-crossed in the traditional roofing practice. It seems to give a concise and pleasing pleasing feeling.
The design of the top node of the main connection node frame is one of the important links in the design of the frame. The design of the node should ensure that the bending moment of the beam is transmitted to the column, so that the steel blade and the concrete combined structure can hardly develop. Puzhou Pass, å± ç¡¬, 硬 弓 è´¾ å…´ 汉 汉 汉 汉 å…´ å…´ å…´ å…´ å…´ å…´ å…´ å…´ æ‹ æ‹ æ‹ æ´ª æ´ª æ´ª æ´ª æ´ª æ´ª æ´ª æ´ª æ´ª æ´ªPingxing Xing Xing Bu K Buzhou Bu.
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According to the characteristics that the arc twisting node has the largest rigidity and the bending capacity is small, this design adopts the arc twisting node, and the radius of curvature of the inner flange is determined according to the calculation. The figure shows that the welding is fully utilized. The stress characteristics of I-beams and beams can reduce the cross section of roof beams.
The connection node between the beam and the column is located at a position that avoids the largest cross section of the bending moment and is easy to install and install. The connection between the beam and the column is connected by high-strength bolts.
Roof panel roof node column.
Steel pipes are spiral welded pipes, and concrete uses expanded concrete.
Due to the high crane bridge, the upper mast is required.
In order to ensure that the column has a corresponding stiffness, but also take into account the manhole to repair the aisle, but also easy to connect with the shoulder beam and the roof beam, so the column is welded I-beam.
The base of the column and the base are rigidly connected, with separate column legs and bolts.
The structural calculation of the truss column is calculated using a program. The upper and lower column sections are translated according to the translated stiffness, and then the strengths of the members are calculated according to several groups of unfavorable internal force combinations after the truss analysis.
The crane girder system crane beam adopts solid-belt welding I-beam. The steel crane beam flange end adopts flanged bearings in addition to the flat ends of the plant end and the expansion joints.
The connection between the end of beam and beam and the column is connected by high-strength bolts. The connection between the brake beam and crane beam is also connected by high-strength bolts. The connection between the brake beam and the auxiliary boom is welded.
Brake beams are used to ensure the lateral stability of the crane girder and to withstand the horizontal braking loads of the crane and the horizontal loads transmitted by the wall frame columns.
Columns and crane girder system columns According to the German company SMS (SM Company's process requirements, the distance between the basic columns is partially set.
Considering that steel-concrete-filled concrete has the advantages of saving steel materials and reducing the workload, the construction is simple, and the cross-section of components is relatively small, which is suitable for bearing axial compression, etc. This design of the steel frame concrete column is based on the concrete-filled steel pipe lattice double-limbed wall system. The system basically adopts the traditional approach, that is, a wall frame column is arranged between two rows of frame columns, a horizontal wipe bar is arranged at the outside of the column, and necessary racks and pull bars are arranged between the wipe bars, and the horizontal load of the wall passes through the wall frame. The column is transmitted to the crane beam and the roof beam.
Its practice is not described in detail in this article.
Year of the steel structure
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