In all fields of society, everyone must be familiar with papers. Papers can promote experience and exchange knowledge. I believe many people will find it difficult to write papers. The following is my technical analysis paper on concrete and steel structure in construction engineering. Welcome to share.
As we all know, in building engineering, concrete and steel structure are the most important load-bearing parts, which not only have a very important influence in the construction process, but also have a great influence in the later use process after the project is over. It can be said that the quality of concrete and steel structure has a very important influence on the future development of the whole construction engineering enterprise. Therefore, in order to ensure the safety and stability of the project, it is necessary to strengthen the research on the construction technology of building structures. The construction technology of concrete and steel structure includes many aspects. This paper mainly analyzes the construction technology of concrete and steel structure construction.
Keywords: concrete; Steel structure; Construction engineering; Construction technology;
With the continuous advancement of urbanization in China, construction projects are also developing, and the number of construction projects is also increasing. In recent years, construction enterprises have paid more and more attention to the engineering quality and the safety and stability of building structures. In building engineering, concrete and steel bars are the most important building materials, which have a very close influence on the bearing capacity of the whole project. Therefore, the construction technology of concrete and steel structure is very critical, which needs to be studied and considered repeatedly to ensure that the construction project can bring the greatest benefit to the enterprise and ensure the safety and stability of the later buildings.
1. Discussion on construction technology of concrete structure in building engineering
1. 1 concrete structure crack control technology
In the process of engineering construction, the quality of concrete is closely related to the overall quality of buildings. In the process of concrete use, the most common problem is cracks. The reason is not only the quality problem itself, but also the influence of external environment. The problem of cracks needs to be paid attention to, because it is not only related to the quality of buildings, but also affects the life safety of construction workers. Cracks have great influence on the strength and tensile strength of concrete structures. If there are many cracks or large cracks in the concrete structure, the whole concrete structure is easy to break or collapse, which is not conducive to the long-term development of the project. The main reason for this kind of crack is that the quality of the materials used is not up to standard, and it is also related to the professional level and sense of responsibility of the construction personnel, or the construction technology is not standardized. In view of the above problems, it is necessary to set up targeted solutions to effectively control cracks. A fundamental solution is to ensure the quality of concrete materials, and the construction process should be carried out in strict accordance with construction standards and norms. At the same time, the professional quality and skills of staff should be improved to ensure the effective construction and maintenance of concrete.
1.2 application of pouring technology in concrete structure construction
Concrete pouring is inevitable in the construction process. Before pouring, a series of preparations should be made. First, give professional training to the construction personnel, so that they can understand the concrete pouring scheme, so as to finish the work clearly in the later stage. Casting requirements, standards and templates need to be clear, and at the same time, the template should be clean and free of impurities and dust, which will affect the demonstration effect in the future. For the template, it is also necessary to check whether there are incomplete concave parts. If so, further repair measures are needed to ensure that the formwork is smooth and smooth, so as to ensure the beauty of the concrete pouring surface. After a series of preparatory work, the number of steel bars should be counted in the construction process to ensure the structural quality meets the requirements and save materials. The whole pouring process also needs to be carried out in strict accordance with the specifications, and the process needs to be continuous and step by step. It can't be delayed for too long, which will affect the overall effect of pouring. The whole process needs the guidance and supervision of specialized personnel to ensure the standardization and scientificity of construction, which can reduce a lot of maintenance work in the future.
1.3 mixing technology of concrete materials.
The proportion and mixing of concrete materials also have obvious influence on the structural quality of concrete. In the process of construction, the proportion test of concrete materials should be carried out first. Before this process, we should strictly analyze the description of concrete and attach great importance to the proportion of this kind of concrete. Based on this, many scale experiments can be carried out to standardize the conditions and other requirements that should be paid attention to when preparing concrete in a good experimental environment. At the same time, it is necessary to ensure that the concrete material exists in a saturated surface dry state to avoid excessive particles affecting the quality of concrete. In addition, the mixing of concrete may be affected by various reasons, such as the construction environment and construction materials. Therefore, in the process of mixing, we must strictly control the sequence, time and material ratio to ensure the standardization of mixing work.
1.4 concrete structure maintenance technology
The concrete structure can't be left behind after the construction is completed, and the future maintenance work is also essential. Special attention should be paid to the maintenance and construction of concrete. If the surrounding environment is controlled during the curing period, concrete will be affected by climate and other factors, which will easily affect its future rendering effect. For example, the humidity and temperature of concrete should be kept constant, and the temperature should be moderate, neither too high nor too low. In the process of concrete maintenance, we should always pay attention to the weather forecast, formulate the maintenance plan according to the specific weather conditions, and ensure that targeted measures are taken according to the actual situation while mastering the climate change to ensure the quality of maintenance work, which can effectively improve the service life of concrete structures and avoid cracks or other problems.
2. Discussion on related technologies of steel structure in building engineering.
2. 1 bolt assembly technology
Steel structure construction is as important as concrete structure construction, and it is the most direct factor affecting the quality of construction projects. At present, the characteristics of steel structures are complex and diverse, including pure steel structures and reinforced concrete structures. At present, the nutrition and bearing capacity of reinforced concrete are the best and should be widely respected. In the process of steel structure construction, bolt assembly technology is to assemble and fix the steel structure, so as to improve the stability of the steel structure. In this construction process, the bolt installation and standard axis position should be determined first, and then the pre-installation should be carried out. One thing to pay attention to is to grasp the error and control it within the standard range. The error is too large, and the construction quality of steel structure can not reach the final acceptance standard.
2.2 steel structure hoisting construction technology
Hoisting construction technology shall be carried out after bolt installation to ensure further stability of bolt installation. The most difficult thing in the hoisting process is to ensure that the steel structure will not fall off, which is also to avoid the safety problems of the staff. If the steel structure is unstable during hoisting, it will be easily damaged if it collides with other hard things. Secondly, use professional hoisting machinery for construction, strengthen construction management, and arrange professionals for on-site supervision and command to ensure orderly and safe hoisting construction.
2.3 steel structure welding technology
Steel structure welding technology is a very key technology. In the process of steel structure reinforcement, welding technology is widely used. This technology needs to do a lot of preparatory work before construction, such as cleaning the surface of steel structure, which can ensure the welding to be smoother and more beautiful. If there are impurities and dust on the surface of the material under construction, cracks are easy to appear during welding. In addition to ensuring the cleanliness of the steel structure surface, we should also pay attention to the cleanliness of the working environment near the steel structure, and then determine the needs of the steel structure according to the construction requirements and standards. The welding construction of steel structure requires very high temperature. After the preparatory work is completed, welding cannot be carried out immediately. The steel structure needs to be preheated and the temperature balanced before the formal welding work can be carried out. Welding is also an artistic activity, which requires a lot of welders. It is necessary to ensure the smoothness and beauty of the welding parts, and to avoid cracks in the welding process. Once any cracks appear, it will increase the difficulty of future maintenance work. Welding workers also have high requirements for the environment. In order to ensure the safety of construction personnel, this work is not allowed in heavy rain, snowstorm, lightning and other weather.
3. Concluding remarks
Concrete structure and steel structure are the key parts in the construction process of building engineering, which have a very close influence on the quality of the project and the safety of people's lives and property. In order to ensure the sustainable development of society and the quality and safety of construction projects, we must constantly improve the construction technology of steel structures and concrete structures, and do a good job in the technical maintenance of concrete structures during construction. Through a series of standardized and reasonable operations, the concrete construction technology is guaranteed to reach the most scientific standard. At the same time, master the essentials of welding technology, grasp the steel structure, plane layout and structure selection during construction, and ensure the stability and safety of steel structure. By strengthening the construction technology of steel structure and concrete structure, they can better interact and assist each other, and realize the longest and effective development in the process of building construction.
Step 4 refer to
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[2] Ren Xiao. Discussion on construction technology of concrete and steel structure engineering [J]. Green building materials, 20 17, 12 (7): 153.
Jiang Tao. Application of steel structure installation and welding construction technology in building engineering [J]. Building materials and decoration, 20 17,1(37): 40-41.
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