Overall stability analysis of building steel structure

The application of building steel structure is more and more widely, and its stability and light weight characteristics have played a role in promoting the overall stability of the building, avoiding the collapse of buildings and other accidents, but from the current situation, there are still some problems in the overall stability of building steel structure, so strengthening the stability of steel structure research has important practical significance.

(1) Advantages of building steel structure. First, high seismic resistance. In construction projects, the selection of steel structure because of its own advantages, due to the high strength of steel materials, but also has relatively strong plasticity and flexibility, can meet the needs of construction projects. In addition, the ductility of the building steel structure is relatively good, and the earthquake resistance is high. When the earthquake disaster occurs, the steel structure has a certain buffer capacity, and its earthquake resistance increases the safety of the building. Second, the accuracy of the steel structure is high. In order to enhance the stability of the building, materials with higher accuracy should be selected, and the steel structure has such an advantage because it has a stronger accuracy than the traditional reinforced concrete structure. In addition, the steel structure also has a certain plasticity and toughness, which can be applied to long-span buildings. If you want to achieve the purpose of enhancing the stability of the building, it should be preferred to choose the steel structure, its stress amplitude has a strong elasticity, and this steel building in the case of stress, and the mechanical calculation method of engineering construction is in line with, is widely used; Third, the construction process of building steel structure is relatively simple. The building steel structure is mainly made of steel plate, cold-processed thin steel plate or hot-rolled steel. Both the production process and the production method are relatively simple, which effectively shortens the construction cycle and the cost used in construction. (2) The disadvantages of building steel structure. In the case of building steel structure with certain advantages, there are also certain shortcomings, mainly reflected in the corrosion resistance and fire resistance of steel structure is relatively poor, which hide a certain danger, easy to cause accidents. In addition, in the process of building construction, components with low strength are usually selected, which causes certain restrictions on the overall stability of the building. Because the construction unit blindly pays attention to the stability, but ignores the importance of strength, which results in the waste of building materials, and also causes adverse effects on the quality of construction projects.

The strength of the building steel structure is not enough, or the instability phenomenon appears, will have a certain impact on the building structure. The stability and strength of the building steel structure are different, because the building components are subjected to the external load and the internal resistance of the building structure, there is instability during this period, in the process of construction, the most important task is to find a balanced state, so as to reduce the phenomenon of steel structure damage. In the building construction process, the strength of steel is high, in the case of pressure, in order to find a balance between strength and stability, to achieve the best effect, often choose the stability requirements, which leads to the strength of the building steel structure is not well played. It can be seen that in the design process of building steel structure, we should pay attention to the definition of steel structure strength and stability, and fully understand the important factors that cause damage to the building.

(1) Ensure stability in all aspects. In the design process of steel structure, in order to ensure the overall stability of the building, we must consider this problem from a global perspective, set up an overall stability structure, and then ensure the stability of each layout in the steel structure, because the part and the whole are interdependent, so to ensure the stability of the components is to lay a good foundation for the overall stability;

(2) Shear adjustment problem. The problem of shear adjustment is one of the important problems in the stability design of steel structure, because with the improvement of the national economic level, the forms of buildings are diverse, and the frequency of inclined columns or asymmetric building forms is higher, which puts forward higher requirements for the stability of buildings. The vertical components are simplified into columns, which can promote the design of the building to a certain extent, but it will cause certain impact on the adjustment of the shear force. Therefore, the adjustment of the shear force can achieve the overall stability of the steel structure design.

(3) Design of strong column and weak beam. In order to promote the overall stability of the building steel structure, the design concept of strong column and weak beam can be adopted. The reason for this design is that when the steel structure is faced with a large load, the plastic hinge needs to appear on the beam rather than the column, which can effectively ensure the overall stability of the steel structure, and there will be no instantaneous damage. In addition, according to the relevant national standards and norms, to ensure the accuracy and scientific design of strong columns and weak beams.

The factors that affect the overall stability of the building steel structure depend on the relationship between the overall stiffness and the steel structure, because the stiffness of the steel structure is determined by the overall process of the steel structure; Secondly, the overall stability of the steel structure has a certain connection with the internal components of the steel structure. In the construction process, the overall stability of the steel structure is ensured by effectively grasping the holistic concept and paying attention to the situation at all levels of the steel structure. In addition, we should pay close attention to some problems related to steel structure and take positive countermeasures.

In the design process of the overall stability of the building steel structure, do not stay on a single design idea, and fully consider the specific situation of the building construction. Due to the diversity of building forms, the number of floors of the building is different, so the requirements of the building steel structure are also very different, in the steel structure of the building, in order to enhance its overall stability, as far as possible to choose a symmetrical design, so that when the earthquake disaster comes, because of its strong earthquake resistance, effectively reduce the risk of earthquake disasters, reduce property and personnel damage.

The stability and strength of the building steel structure should reach a certain standard, and the design of the perfect super stability of the components. If the stability of the steel components is found to be damaged during the construction process, timely measures should be taken to enhance the overall bearing capacity of the building components through the buckling strength of the steel components.

In addition, the stability design of building steel structure can calculate complex problems in building construction with the help of the application of technology in the new era. Due to the intelligence and efficiency of the computer, the accuracy and calculation speed of the calculation are increased, which provides certain help for the overall stability design of building steel structure.