Sound barrier, mainly used for sound insulation and noise reduction of roads, railways, highways, elevated composite roads and other noise sources. The common sound insulation wall is also a kind of sound barrier. Most sound barrier facilities have beautiful appearance. It is exquisite in production, convenient in transportation and installation, low in cost and long in service life. Therefore, it has become an ideal sound and noise reduction facility for modern cities. Since the sound barrier has so many advantages, there will definitely be friends who can't wait to know how to install the sound barrier facility. Here we want to ask friends that we have embedded parts in many building reinforcement projects, so is there this step in the sound barrier?
The answer is definitely yes. But recently, we received a call from a friend. What should I do if the sound barrier is not embedded? Don't worry, we still have remedies. We can choose anchoring options. Please look down:
The post-anchor method is the abbreviation of the post-embedded anchoring method that we often say. Generally it refers to the installation of connecting parts on the existing engineering structure by relevant technical means. As an important step in the building reinforcement project, we who have long been committed to the building reinforcement industry, will certainly not reduce the research on it. Today, we will share some post-anchoring methods and key areas that have been summarized for many years of construction experience. We hope to help friends better understand post-anchor.
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What is the rear embedded anchor?
The embedded parts can be divided into pre-embedded parts and post-embedded parts. The post-embedded parts are non-prefabricated parts that are fixed in the specified position after the civil construction is completed but must be punched in the building first and then installed. The most important difference from the pre-embedded construction method is that the anchoring of the steel bars is carried out with the concrete already poured. The rear anchoring has the advantages of simple construction and flexible operation with respect to pre-buried anchoring.
What are the rear anchoring methods?
There are many methods for anchoring the rear embedded parts. The total can be divided into two categories: planting tendons and anchoring with anchors. The anchor bolt is an anchoring component that is anchored to the concrete substrate by the connecting member, and can be divided into a mechanical anchor bolt and a bonded anchor bolt; the number of the anchor bolt can be divided into a single anchor, a double anchor and a group anchor.
Anchor bolts can be divided into different types according to the working principle and structure: expansion anchor bolts (divided into torque control type and displacement control type according to the source of expansion force) and reaming anchor bolts (according to the reaming method, it can be divided into self-reaming holes and pre-reaming), chemical planting and long screws.
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1. Expanding anchor bolt: The anchor bolt is formed by the expansion member pressing the hole of the anchor hole to form an anchor.
2. Reaming anchor: The anchor bolt is formed by the locking key between the bottom hole of the anchor hole and the expansion joint of the anchor bolt.
3. Chemical planting reinforcement: A kind of post-anchored root-reinforcing steel bar with a chemical binder-planting adhesive, which is fixed with ribbed steel bars and long screws in the anchor hole of concrete substrate.
What are the selection principles for the rear anchoring method?
1. In addition to considering the performance difference of the anchor itself, the selection of various types of anchors should consider the comprehensive effects of the properties of the structural substrate, the mechanical properties of the anchoring connection, the type of connected structure, and the requirements for seismic fortification.
2. Inflatable anchor bolts and reaming anchor bolts shall not be used for post-anchor joints of tensile, edge sheared (c <10 hef), tensile and shear composite structural members and lifeline engineering non-structural members. The chemical planting bar and the screw satisfying the anchoring depth requirement can be applied to the rear anchoring connection of the structural members and the non-structural members of the tension, the edge shearing, the shearing and shearing combined with the seismic fortification intensity ≤8 degrees.
The above is some of the knowledge and problems about how to select the post-anchoring method. In fact, the key factor is the reasonable selection of anchor bolts (or planting bar adhesive). The specific conditions are different depending on whether the sound barrier is embedded or not. If you have any questions about the selection of anchor bolts, please feel free to call Mankate~
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