The unpredictability of earthquake makes it one of the most dangerous natural disasters. The number of earthquakes is about 1.3 million times a year in the world, and China is one of the most serious earthquake disasters in the world. After the 5.12 Wenchuan earthquake, the Ministry of construction revised the original code for seismic design of buildings twice, and issued the new code for seismic design of buildings (GB 50011-2010). The mandatory provisions in the code were strictly implemented to ensure the safety of people's lives and property. For how to prevent and reduce the secondary disasters caused by earthquake, such as fire, flood and other secondary disasters, the mechanical and electrical anti-seismic support and hanger technology is used to reinforce and connect the building mechanical and electrical facilities with the building structure according to the characteristics of seismic transverse and longitudinal waves and the seismic requirements of fire-fighting, water supply and drainage, air duct, cable and other building mechanical and electrical facilities, so as to ensure the completion of important mechanical and electrical facilities such as building fire protection, emergency communication, power, gas supply, etc To a great extent, it can prevent the occurrence of secondary disasters.

Necessity of aseismic supports and hangers

Seismic support has been paid more and more attention. What role does seismic support play in life? Here's an analysis.

First of all, starting from the content of seismic design, the structural selection of buildings requires multiple seismic lines of defense and reasonable transmission path of earthquake action, so as to make the structure suitable and have good seismic bearing capacity. The seismic support, as a main seismic structural component, plays a very important role. Under certain strength conditions, such as when an earthquake occurs, it can consume and bear certain pressure, reduce earthquake damage, so as to reduce the loss in all aspects and protect personal safety.

Secondly, starting from the structure of the seismic support itself, the seismic support is mainly composed of anchor solid, reinforcement suspender, diagonal brace and connecting components. During the installation and reinforcement, through a series of scientific calculation, such as the adjustment between the suspension screw and anchor of the seismic support, the large bearing capacity of the screw and anchor should be greater than the calculated seismic force. It can be seen that the setting of seismic support is tight. Let's return to the role of seismic construction. Seismic support, as an important part of it, plays an important role in earthquake resistant construction, mainly reflected in the protection of housing structure, meeting the needs of urban construction, and stabilizing people's minds. From a certain point of view, to promote the development of China's earthquake resistant construction is conducive to the stability of social order and the stability of infrastructure.

Seismic support and hanger is a support system which is firmly connected to the building structure and takes seismic force as the main load. When the building encounters the earthquake of fortification intensity, the seismic force generated by the pipeline and equipment is transmitted to the structure through the seismic support and hanger, so as to achieve the effect of no damage in small earthquake, repairable in medium earthquake and no collapse in large earthquake.

Form of seismic support and hanger

Seismic support and hanger is a kind of support and hanger product used to support mechanical and electrical pipeline equipment such as water pipe, air duct and bridge and provide seismic support. When used, it is firmly connected with the building structure. Its structure is composed of anchor solid, reinforced suspender, anti-seismic connecting member and anti-seismic diagonal brace. What are the common forms of seismic support and hanger?

1. Lateral seismic support and hanger: used to resist lateral horizontal seismic force;

2. Longitudinal seismic support and hanger: used to resist longitudinal horizontal seismic force;

3. Single pipe (pole) seismic support and hanger: it is composed of a load-bearing hanger and anti-seismic diagonal brace;

4. Portal seismic support and hanger: it is composed of two or more load-bearing hangers, cross beams and seismic diagonal braces.

Generally speaking, the installation speed of anti-seismic supports and hangers is fast, and the construction period is relatively short. Therefore, compared with the traditional method, it has become faster and faster. Of course, the production and installation cost has been continuously reduced, which can greatly improve the work efficiency and shorten the construction period. In this way, the performance and quality are better in the process of construction and installation With the recognition and trust of most customers, the sales volume will be larger.

Operation method of fixing seismic support and hanger

In the modern building mechanical and electrical system, the number of pipes is very large, the specifications and models are also very complex, the use of functions are also different. When the system is in daily work, whether the pipeline has enough strength to make the pipeline fixed in the structure is the key to the normal operation of the whole electromechanical system. When an earthquake occurs, whether the seismic supports and hangers can ensure that the pipelines of mechanical and electrical systems are not affected by fortification intensity, and whether some lifeline systems can ensure normal operation are also important factors to protect people's lives and property. How to reasonably and safely arrange these piping systems in buildings, the seismic support and hanger plays an important role.

1. When the anti-seismic support and hanger is fixed with the post expanding anchor bolt in the concrete structure, the penetration force of the expanded bottom bolt must reach the specified depth value. A special tool must be used for the belled anchor bolt. And meet the installation standard of belled anchor bolt.

2. The pipe rack support of seismic support and hanger shall be installed according to the requirements of design drawings. If the installation is not correct on site, the designers of the design institute agree to modify the seismic support. The seismic support shall be installed according to the working drawing, and the suspension rod shall not be bent or deformed. The spacing of seismic support and hanger shall be set correctly according to the design requirements. The support shall be cleaned after the installation and construction is completed, All exposed grooved steel must be fitted with side covers.

Technological characteristics of aseismic supports and hangers

When the aseismic supports and hangers are installed and used in many mechanical equipment, the supporting function is still more prominent, and its performance and advantages will be more and more diversified. Therefore, since it was popularized to the market, it has been found that the functions and advantages of the supports and hangers are diversified, especially in the basic technology, which aspects can be highlighted?

First, each process of seismic support and hanger in the process of processing is relatively complex, especially in the processing requirements are very high, the key is to know that the upgrading of processing equipment, the quality and strength of its supports and hangers will be significantly improved, then the mechanical performance and support force played out in the process of installation and use are very good, which is a new type Support and hanger, in its technical level will be higher and higher, is a choice worthy of recognition.

Second, compared with the traditional supports and hangers, there is a big gap between the process and the edge of workmanship. In the new era, the service life of the supports and hangers is longer, and in the process of use, its firmness is very strong, so the performance is also very strong, which is more and more strong in the use process. It is a reliable new type of support and hanger, which is popular in the marketing process.

We all know that since the development of seismic supports and hangers for wide application, their performance and quality have been greatly recognized, especially in the construction site guidance, which can achieve better support and hanger design effect, and make the professional bundle more coordinated, in terms of its function, it will be more and more diversified, In terms of its performance, it has been recognized and trusted by customers.

In the actual construction project, there are still many such cases: if the project acceptance is not qualified, then consider the installation of seismic support; if the budget is not enough, do not consider the use of seismic support; and even there is no seismic support included in the project plan at all.

Application of seismic support and hanger in Engineering

The mechanical and electrical seismic support system is a support system with seismic force as the main load, which is firmly connected to the pipeline, groove system and equipment of the building structure which has been designed for earthquake resistance. The original general support and hanger system is the support system with gravity as the main load. The setting of these two support systems is not repeated, but complementary.

The seismic support covers a wide range, including the construction of water supply and drainage, fire protection, heating, ventilation, air conditioning, gas, heat, electricity and other aspects of seismic work construction, which plays an important role in the new pattern of buildings.

The application of anti-seismic support is first of all fire-fighting, fire-fighting pipeline equipment is the most important and also the largest consumption; secondly, fire-fighting smoke exhaust, ventilation is the largest amount of accessories in one-way engineering; and then the electrical (bus bridge) one-way engineering involves the most extensive.

The above are all the projects that must be designed and installed in public buildings, which can be said to be the backbone of the building. These projects can't serve the public.

In the huge and complex mechanical and electrical system, the installation of anti-seismic support can greatly reduce the damage to the mechanical and electrical system caused by natural disasters such as earthquakes and tornadoes, so as to provide more insurance for the city lifeline of production and life activities necessary for the public.

This is why we repeatedly emphasize the application of seismic support in engineering, and it is also the original intention of the national mandatory requirement of installing seismic support.