How to construct the expansion joint between two buildings 5

It is extremely important to properly select the appropriate amount of expansion and contraction, and the larger the gap, the more likely it is to be damaged. The gap used is too large or too small, and the gap is not adjusted taking into account the temperature at the time of installation. Especially for plate rubber telescopic devices, it is easy to cause damage.

Even on continuous bridge decks, cracks often occur in the surface pavement.

Therefore, it is necessary to pre-cut the bridge deck, set up joints, or use a softer pavement layer to absorb cracks, or install small expansion and contraction devices. In the case of large longitudinal slopes, if the structure is not set up to adapt to the vertical displacement, it is easy to produce defects and cause damage. The telescopic device is longitudinal along the bridge deck, and there is deflection even if the telescopic amount is small.

Therefore, it is necessary to pay attention to the structure of the expansion device.

The combination of the expansion device and the beam body into a whole of equal strength is undoubtedly an important means to improve its use efficiency. In addition to the modulus type telescopic device, other types of bridge telescopic device, and the bridge deck of the fixation, combination is often not sufficient, the effect is not ideal, the general structure size is small, the stiffness is insufficient, and the characteristics of the new material, the combination and so on are not deep enough, so in the selection should be fully compared and studied.

To prevent water leakage due to rain, although in some steel expansion joints.

In the device, the fitting part is a practical type that inserts sealing rubber or a drainage device or pavement layer layer as an easy to clean type, or fills the entire gap with waterproof material. For the rainwater with the bridge deck, a centralized drainage outlet should generally be set up near the expansion device; For components that are not painted for daily maintenance, high-quality and durable protective materials should be used for effective treatment in the design.

It is possible to construct one building first, and the other building needs to support the formwork at the expansion joint position, and add insulation board and other materials to fill the expansion joint position.

The simplest and most effective way is to clamp foam board in the expansion joint.

There are three main treatment methods for expansion joints in <> buildings: flexible expansion joint treatment methods; Rigid expansion joint treatment method; Composite expansion joint treatment method.

1. Treatment method of flexible expansion joint.

The flexible expansion joint treatment method generally adopts a material similar to caulk and covers the galvanized sheet or plastic plate at the expansion joint, which is easy to construct and low cost of dust return to socks, and can effectively prevent water seepage and water leakage, but its service life is short, and after a period of use, the caulking material is prone to cracking, aging and other problems.

2. Treatment method of hard expansion joint.

The hard expansion joint treatment method generally uses metal materials, concrete or materials such as Jiezen steel bars, which are characterized by being strong, durable, long service life, and can effectively resist natural disasters such as large **, but the construction is difficult and the cost is high, and a professional team is required to carry out the construction.

3. Composite expansion joint treatment method.

The composite expansion joint treatment method adopts the combination of flexible expansion joint and hard expansion joint, and through the embedding of flexible material and hard material, the expansion joint can have both flexibility and firmness, with a wide range of application and low construction cost, which is more popular than the other two methods.

Expand your knowledge:

Expansion joint refers to the stress concentration area caused by the internal stress of the building caused by temperature changes, wind load and other factors in the building structure, in order to reduce the stress caused by these factors, the expansion joint is used as an effective protective measure in the building. The setting of expansion joints can make the building have better seismic and wind load resistance capacity, and it is also conducive to solving problems such as waterproofing and heat preservation.

The expansion joints made by God between the two buildings are to prevent the building from deforming or destroying due to temperature changes, **, etc. The following is how to deal with the expansion joints of the two buildings:

1.Installation of expansion joints: Expansion joints are a kind of material specially used for the treatment of expansion joints in buildings, which can effectively absorb the deformation of buildings.

Installing the expansion joints in the gap between the two buildings can effectively prevent the building from deforming or destroying due to temperature changes, **, etc.

2.Installation of expansion joint plate: Expansion joint plate is a material specially used for the quiet treatment of expansion joints of buildings, which can effectively absorb the deformation of buildings.

Installing the expansion joint plate in the gap between the two buildings can effectively prevent the building from deforming or destroying due to temperature changes, **, etc.

3.Installation of expansion joints and expansion joints: The combination of expansion joints and expansion joints can absorb the deformation of the building more effectively.

The expansion joint is installed in the gap between the two buildings, and then the expansion joint plate is installed on the expansion joint bar, which can effectively prevent the building from deformation or damage due to temperature changes, ** and other reasons.

It should be noted that the treatment of expansion joints needs to be carried out on a case-by-case basis, and it is recommended to seek the advice and suggestions of professional architects or engineers to ensure the treatment effect and safety of expansion joints.

In the construction project, the expansion joints between the two buildings are set up to accommodate the deformation of the building at different temperatures. Here's how to deal with expansion joints in two buildings::

1.Material Handling: Materials such as rubber, fiberglass, and metal are often used, and attention needs to be paid to whether the expansion coefficient and shrinkage capacity of various materials are matched.

2.Seismic isolation treatment: the expansion joints do not need to take into account the changes of the building at different temperatures, and also need to take into account the relative movement of the buildings between each other, so the expansion joints of high-rise buildings need to be isolated.

3.Filling treatment: The Noboga opening and shrinking joints at both ends of the building will also be eroded by wind and sand and various debris, and the gaps should be sealed with infill during installation to avoid the entry of debris.

5.Regular inspection: The expansion joints of the building should be inspected regularly, the filling should be replaced regularly, and the basic measures such as seismic isolation and protective layer should be maintained.

In actual projects, it is necessary to choose the appropriate expansion joint treatment method according to different building structures and environmental conditions.

1: Elastic marble treatment.

2: Flexible pay-off seam treatment.

3: Control method.

Only buildings over 60 meters in length or buildings with height differences will be equipped with expansion joints.

The ratio of the length and width of the building is required in the code. If this ratio is exceeded, it is necessary to have expansion joints or take necessary measures. Here, the ratio of the length and width of the two cells should meet the requirements of the specification.

Expansion joints for construction.

Just for the sake of the building structure.

In order to prevent uneven settlement of the building, resulting in damage to the building structure, this method will be used, and not all buildings have expansion joints.

Summary. Hello, if the expansion joints between the two buildings are not properly treated, there will be water leakage problems. How the expansion joints between two buildings are waterproof.

1. Chisel out in the gap of the floor slab first.

A V-shape, then put the cement sand.

The slurry is injected into the gaps, and the amount of mortar should be sufficient to ensure that the gaps are filled.

Full. 2. Then spread the glass fiber mesh on the top of the gap and scrape.

Scrape the net with the cement at the seam. 3. The most.

After the surface is dry, brush 2-3 waterproof, and then use mortar for protection.

layer on the line. How to construct the expansion joint between the two buildings.

Hello, if the expansion joints between the two buildings are not properly treated, there will be water leakage problems. How to waterproof the expansion joint between two buildings 1, first chisel out a V-shaped shape in the gap of the floor slab, and then inject cement mortar into the gap, and the amount of mortar should be sufficient to ensure that the gap is filled. 2. Spread the glass fiber mesh on the top of the gap and scrape it again with a scraper to bond the net with the cement at the seam.

3. Finally, after the surface is dry, brush 2-3 waterproof, and then use mortar to make a protective layer of reed. Absolutely.

What to do if there are cracks in the cast-in-place floor slab 1. Resin perfusion method When there are cracks in the floor slab, you can use resin material treatment, which is the most common treatment material. When the material is poured into the cracks, it can resist the chemical attack of the concrete, but if the cracks are more severe, this method may not be effective. 2. The surface sealing method can also be used to repair the cracks of the floor slab, and the method of singing pants is mainly used for some minor cracks, and the sealing method is used to prevent the invasion of water vapor and chemical substances.

3. The flexible sealing method can also chisel a groove at the edge of the crack and then fill it with appropriate flexible materials, so that the crack problem can also be repaired.

When there are a large number of cracks on the surface of the house, and the cracks are not obvious, it can be treated with airtight treatment or covering the cracks. 5. Coating treatment methodWhen the cracks on the surface of the building are relatively stubborn, the paint can be used to repair the posture and make up for it, and the construction method is also very simple.