Can load bearing walls open door openings? How to strengthen the door opening of the load bearing wa

load-bearing walls. The door can be opened, and the load-bearing wall can be reinforced: the steel plate is reinforced, and the edge of the new door opening is connected with carbon fiber glue with a thick steel plate and the load-bearing beam body.

It is an equilateral angle steel structure reinforcement, and the latter is not as mature as the previous structural reinforcement process, but it is the most practical structural reinforcement processing technology. After the load-bearing wall is dismantled and the door is opened, in accordance with the requirements of the Ministry of National Construction Commission, the structure must be reinforced, otherwise the property company is not easy to allow the demolition, and the load-bearing wall is currently the two most perfect structural reinforcement processing technology.

The load-bearing beam is the bearing capacity structure of the building, and the door opening can not be opened without permission, and the renovation will be renovated, otherwise the overall structural bearing capacity will be harmed, resulting in the imbalance of the entire structural system, affecting the reliability performance of the whole building, and the safety performance will be affected. Strengthen the cross-sectional structure reinforcement method in the load-bearing wall to open the door construction technology is relatively simple, and the adaptability is strong, in addition to these advantages, the increase cross-section method also has a perfect design and work experience in the reinforcement scheme, many technical engineers.

This method is found to be very suitable for the reinforcement of concrete structures of beams, columns, slabs, walls and general structures.

However, we have seen that it has a small disadvantage, usually the wet operation time of the construction site is long, so that it will have a certain impact on production and life, and the static space of the building will be reduced to a certain extent after the reinforcement construction. Look at the house type drawing material: In the house plan drawing, the wall marked as black on the assembly drawing is all load-bearing beams, and the wall marked as milky white part is the load-bearing beam, which can be updated and dismantled, and it is not easy to affect the building.

Look at the structure of the house, generally speaking, the brick and concrete building structure.

All the walls of the house are load-bearing beams. The exterior wall of the house with frame shear wall is load-bearing beam, and the internal wall surface is generally not load-bearing beam. In the first step, we integrate the advantages of the reinforcement method of replacing the concrete structure with the method of increasing the cross-section (indicated above) is also very similar, and the concrete is replaced.

After the structural reinforcement, it will not affect the net indoor space of the building. However, with the increase in cross-section hair mentioned later, there are also defects such as long wet operation time of construction, etc., and the reinforcement home feels that this kind of structural reinforcement method is very suitable for structural reinforcement such as concrete bearing members with slightly lower strength or serious defects such as beams and columns in the stress area.

In the process of decoration, the load-bearing wall is a very important structure, try not to open the door opening, and do not knock down the load-bearing wall. No matter how much reinforcement is used, there is no way to compensate for the damage.

It is possible to open the door, but it is not easy to open too large, and an iron plate should be added to it for reinforcement.

Load-bearing wall: As the name suggests, it refers to the wall that supports the weight of the upper floor. If there are drawings, you can see at a glance that the thick solid line black wall is generally a load-bearing wall.

The load-bearing wall is the wall that supports the weight of the floor above, if the door is opened in the load-bearing wall, the entire building structure will be destroyed, the load-bearing wall is not the same for the floor, the load-bearing wall has no stress point, the floor slab is not supported, once the floor appears cracked, the consequences are unimaginable. During construction, if we have a hole in the load-bearing wall or a reserved casing, etc., it is necessary to go through the strict calculation of the design, and then make the corresponding strengthening measures before it can be carried out.

The load-bearing wall opening will inevitably change the mechanical structure of the original building, so that the various parts of the building are stressed unevenly or the center of gravity is shifted to other parts, which can cause cracks and collapse of the house in serious cases, and even endanger the safety of the house, so when decorating the house, the load-bearing wall can not be removed with the change. From the load-bearing structure design, the whole building is a whole, the force of the building is through the beams, plates, columns, the force is transmitted to the foundation and then to the earth, the load-bearing wall will make the place become the weakest point of the force, privately open the door on the load-bearing wall, once the consequences are found to be very serious, personal advice or do not open the door hole. In fact, the interior decoration can still be designed without opening the door.

<> because both the weight of cement mortar and the weight of furniture and appliances will be transmitted to the load-bearing walls and structural beams through the floor slab, and then to the load-bearing walls or structural columns on the lower floor, and then to the foundation. If it is a house that has been delivered, it is not possible to open the door, especially the reinforced concrete structure and commercial buildings. If you want to open it, you need to get the consent of the competent department and the construction committee, carry out the record, find the structural designer, the construction party, and issue the construction transformation and structural strengthening plan.

For the sake of safety, you can first find the design unit of the building and ask to calculate the load-bearing coefficient of the load-bearing wall, and find out whether it can be changed, and have a clear plan, so that the construction will not have much impact.

As the name suggests, the load-bearing wall is used to bear load, and the load-bearing wall of the house supports the entire wall, which cannot be changed at will, let alone punch holes, in case of collapse, the consequences are unimaginable.

Load-bearing walls are walls that support the weight of the floors above and are very important. Of course, the door can not be opened, if it is opened, it will cause the overall structure to be unbalanced, and serious will cause weightlessness and potential safety hazards.

In fact, it is the key wall that is responsible for the support of the whole building, and it is not allowed to open the door, because this load-bearing wall must maintain integrity, and if it is incomplete, it will affect the quality.

A load-bearing wall is a wall that supports the weight of the upper floors. The load-bearing wall cannot open the door, because once the load-bearing wall is in danger of collapsing, the upper floor will collapse.

Legal analysis: first, report the intention of demolition and reform to the national planning and design department; Second, please invite the architectural design unit with the district-level qualification to conduct on-site surveys and inspections, and design a change paper; Third, the drawings can only be started after they have been reviewed and approved by the national planning and design department. The demolition and modification of the load-bearing wall must not be, even if it is legal, it will bear the risk and high consumption.

Legal basis: Article 8 of the Construction Law of the People's Republic of China to apply for a construction permit shall meet the following conditions: (A) has gone through the approval procedures for the construction project land; (B) shall be handled in accordance with the law for construction project planning permits, has obtained construction project planning permits; (3) Where demolition is required, the demolition progress meets the construction requirements; (4) The construction enterprise has been determined; (E) to meet the needs of the construction of financial arrangements, construction drawings and technical information; (6) Specific measures for the quality and safety of the project.

Construction administrative departments shall, within seven days from the date of receipt of the application, issue a construction permit to eligible applications.

No, it is illegal to alter without permission.

According to Article 5 of the Administrative Measures for Residential Interior Decoration, the following behaviors are prohibited for residential interior decoration activities:

A) without the original design unit or the design unit with the corresponding qualification level to put forward the design plan, change the main body of the building and load-bearing structure;

2) Changing rooms or balconies without waterproof requirements into bathrooms and kitchens;

3) Expand the size of the original doors and windows on the load-bearing wall, and remove the brick and concrete walls connecting the balconies;

4) Damage the original energy-saving facilities of the house and reduce the energy-saving effect;

5) Other behaviors that affect the safety of building structure and use.

Article 6 stipulates that decorators engaged in residential interior decoration activities shall not engage in the following acts without approval:

1) Erection of buildings and structures;

2) Changing the façade of the dwelling, opening doors and windows on the exterior walls of the non-Cheng Zen Wheel;

3) Demolition and alteration of heating pipes and facilities;

4) Demolition and modification of gas pipelines and facilities.

The acts listed in item (a) and (b) of this article shall be approved by the competent administrative department of urban planning; (3) acts, shall be approved by the heating management unit; The act in item (4) shall be approved by the gas management unit.

Reinforced with adhesive steel plates, the edge of the new opening opening is connected with steel plates and load-bearing walls with adhesive steel glue. It is not equal angle steel reinforcement, and the latter is not as mature as the former reinforcement process, but it is the most practical reinforcement process.

After the load-bearing wall is dismantled and the door is opened, it must be strengthened in accordance with the provisions of the Ministry of National Construction Commission, otherwise the community property will not agree to be demolished.

The load-bearing wall is the stressed structure of the building, and the opening can not be opened without authorization, or it will affect the overall structural stress, resulting in the imbalance of the entire structural system, and the stability of the whole building will be affected, and the safety factor will be greatly reduced.

The removal of the load-bearing wall means that the entire structure of the house is changed, and one less load-bearing wall means that the force of the roof needs to be borne by other columns and beams. Reinforcement is the reinforcement of the building structure, and the amount of reinforcement needs to be calculated. Then, there are the following schemes for load-bearing wall reinforcement.

Load-bearing wall reinforcement scheme 1Anchor anchoring method.

This method is applicable to the transformation and reinforcement of concrete load-bearing structures with a concrete strength grade of C20 furniture net C60; It is not suitable for the above structures and lightweight structures that have been severely weathered.

Load-bearing wall reinforcement scheme 2Filament winding.

The advantages and disadvantages of this method are similar to those of the enlarged cross-section method. It is suitable for the reinforcement of the inclined section of the concrete structural member with insufficient bearing capacity, or the need to apply transverse restraint force to the compression member.

Load-bearing wall reinforcement scheme 3Replacement concrete reinforcement method.

The advantages of this method are similar to those of the enlarged cross-section method, and the clearance of the building is not affected after reinforcement, but it also has the disadvantage of long wet operation time of construction. It is suitable for the reinforcement of concrete load-bearing components such as beams and columns with low concrete strength or serious defects in the compression area.

Load-bearing wall reinforcement scheme 4Adhesive fiber reinforced plastic reinforcement method.

In addition to the similar advantages of pasting steel plates, it also has the advantages of corrosion resistance, moisture resistance, almost no increase in the weight of the structure, durability, and low maintenance costs, but it requires special fireproof treatment, and is suitable for concrete structural components and general structures with various stress properties.

Load-bearing wall reinforcement scheme 5Enlarged cross-section reinforcement method.

The construction process of this method is simple, adaptable, and has mature design and construction experience. It is suitable for the reinforcement of concrete for beams, slabs, columns, walls and general structures; However, the wet operation time of on-site construction is long, which has a certain impact on production and life, and the clearance of the reinforced building is reduced to a certain extent.

Load-bearing wall reinforcement scheme 6Bonding outer section steel reinforcement method.

This method is also known as the wet outer steel reinforcement method, which is reliable in stress, simple in construction, and small in on-site workload, but the amount of steel used is large, and it is not suitable for use in high-temperature places above 600C without protection; It is suitable for the reinforcement of concrete structures that do not allow to significantly increase the cross-sectional size of the original components, but require a significant increase in their bearing capacity.

Load-bearing wall reinforcement scheme 7Paste steel plate reinforcement method.

The method has a small amount of wet operation such as fast construction, no wet operation on site or only a small amount of wet operation such as plastering, which has little impact on production and life, and has no significant impact on the appearance of the original structure and the original clearance after reinforcement, but the reinforcement effect depends to a large extent on the gluing process and operation level. It is suitable for the reinforcement of bending or tension members that are subjected to static action and are in a normal humidity environment.

Leaning against the load-bearing wall 1m away, use the ejector rod to hold the plate up, 60 steps.

The infill wall is easy to deal with, and in general, adding lintels at the top of the door can solve the problem.

The opening of the load-bearing wall should be analyzed according to the force and design, and the specific situation should not be generalized. Without the consent of the design unit or the advice of a professional structural engineer, it is not recommended to deal with it by yourself to prevent potential safety hazards and safety accidents, and reduce the overall safety of the structure.

The load-bearing wall should not be opened lightly.

Find a hebeijichuang building reinforcement company.

Specifically address the issues you ask.

First of all, it is not recommended to open the door on a load-bearing wall. However, if you have to open the door on the load-bearing wall, finding a reinforcement company with structural reinforcement qualification can help you achieve it, but the cost is relatively high.

The load-bearing wall door reinforcement methods are generally as follows:

1) Increase the cross-section to strengthen the load-bearing wall to open the door

In addition to these advantages, the enlarged cross-section method also has mature design and construction experience in the reinforcement technology, and many engineers find that this method is very suitable for the reinforcement of beams, columns, slabs, walls and the concrete of general structures.

However, we found that its small disadvantage is mainly the long wet operation time of on-site construction, which will have a certain impact on production and life, and the building clearance after reinforcement construction has been reduced to a certain extent.

2) Reinforcement method for replacing concrete:

First of all, the advantages of the reinforcement method combined with the replacement concrete method are also very similar to the method of increasing the cross-section (explained above), and the reinforcement method of replacing concrete will not affect the net space of the building. However, there are also shortcomings such as long wet operation time of construction, etc., and the reinforcement home believes that this reinforcement method is more suitable for the reinforcement of concrete load-bearing components such as beams and columns with low concrete strength or serious defects in the compression area.

3) Use anchor bolts for anchoring method:

The anchoring method with anchor bolts is suitable for concrete strength classes C20. And it needs to be re-strengthened on the basis of the transformation of the concrete load-bearing structure; It is important to note that this method is not suitable for heavily weathered and lightweight structures.

4) Bonded outer steel reinforcement load-bearing wall opening opening:

The method of bonding the outer steel to reinforce the load-bearing wall opening is also called the wet outer steel reinforcement method, the stress of this method is reliable, the construction is simple, and the on-site workload is small, but the amount of steel is large, and it is not suitable to be used in the high-temperature place above 600C without protection; It is suitable for the reinforcement of concrete structures that do not allow a significant increase in the cross-sectional size of the original components, but require a significant increase in their bearing capacity.

5) Winding wire can be strengthened weighing wall to open the door

The advantages and disadvantages of the method of reinforcing the opening of the load-bearing wall by using wire winding are similar to those of the method of increasing the cross-section, and this method is suitable for the reinforcement of the insufficient bearing capacity of the oblique section of the concrete structural component, or the occasion that the transverse restraint force needs to be applied to the compression member.

7) Paste fiber reinforced plastic to reinforce the opening of the load-bearing wall:

In addition to having the similar advantages of pasting steel plates, the method of pasting fiber reinforced plastic to reinforce the door opening of the load-bearing wall also has a series of advantages such as corrosion resistance, moisture resistance, almost no increase in the weight of the structure, durability, low maintenance cost, etc., but it needs special fireproof treatment, and is suitable for concrete structural components and general structures of various stress properties.