What is a frame structure?

Question 1: What is the frame structure? A frame-tapping structure is a structure in which a beam-column system carries the load. The force acting on the floor is transmitted to the beams, and then from the beams to the columns, and then to the foundation. Different from the shear wall structure, the shear wall structure is a load-bearing structure without columns and beams. Nowadays, the frame-shear wall structure system combines the advantages of both structures.

The frame structure has clear and simple stresses and is more suitable for use in large public buildings. For residential buildings, the size of the columns is often much larger than the wall, resulting in local protrusions indoors, which brings problems to the layout. limitations.

Question 2: What are the advantages and disadvantages of frame structure? Frame structure refers to a structure composed of beams and columns rigidly or hingedly connected to form a load-bearing system, that is, a frame composed of beams and columns has the same resistance Horizontal and vertical loads that occur during use.

The main advantages of frame buildings:

The space separation is flexible and the weight is light, which is beneficial to earthquake resistance and material saving; it has the advantage of being able to flexibly match the building layout, which is beneficial to the arrangement needs to be more flexible. Large space building structure; the beam and column components of the frame structure are easy to standardize and finalize, making it easy to assemble an integral structure to shorten the construction period; when a cast-in-place concrete frame is used, the integrity and stiffness of the structure are better, and the design is well handled It can also achieve better earthquake resistance, and the beams or columns can be cast into various required cross-sectional shapes.

The disadvantages of the frame structure system are:

The stress concentration of the frame nodes is significant; the lateral stiffness of the frame structure is small and it is a flexible structural frame. Under the action of a strong earthquake, the horizontal force generated by the structure Large displacements can easily cause serious non-structural damage; the amount of steel and cement is large, the total number of components is large, the number of hoistings is large, the workload of joints is large, and there are many processes, which wastes manpower, and construction is greatly affected by seasons and the environment. ; It is not suitable for building high-rise buildings. The frame is a rod system composed of beams and columns, and its bearing capacity and stiffness are low, especially in the horizontal direction (even if the cast-in-place floor and beams can be considered to work together to improve the floor (surface horizontal stiffness, but also limited), its stress characteristics are similar to vertical cantilever shear beams, its overall horizontal displacement is larger at the top and smaller at the bottom, but relative to each floor, the inter-story deformation is small at the top and large at the bottom. The design How to improve the lateral stiffness of the frame and control the lateral movement of the structure are important factors. For reinforced concrete frames, when the height is large and the number of layers is quite large, not only the axial force of the columns at the bottom of the structure is very large, but also the beams and columns are affected by horizontal loads. The resulting bending moment and overall lateral displacement also increase significantly, resulting in an increase in cross-sectional size and reinforcement, which may cause difficulties in building layout and space processing, affecting the rational use of building space, in terms of material consumption and cost. , also tends to be unreasonable, so it is generally suitable for building houses with no more than 15 floors.

Question 3: What exactly does frame structure housing mean? Frame structure housing refers to the use of reinforced concrete poured into load-bearing beams and columns, and then prefabricated aerated concrete, expanded perlite, pumice, vermiculite, etc. A house made of lightweight board partition walls. It is suitable for large-scale industrial construction, with high efficiency and good project quality.

Brick-concrete structure housing

Brick-concrete structure refers to a structure with a small part of reinforced concrete and most of the brick walls. The "brick" in brick-concrete structure housing refers to a uniform-sized building material. There are also special-shaped clay bricks of other sizes, such as hollow bricks. "Concrete" refers to reinforced concrete accessories made of steel bars, cement, sand and water in a certain proportion, including floor slabs, lintels, stairs, balconies and overhangs. These accessories combined with the load-bearing walls of the brick gang can be called a brick-concrete structure house. Due to earthquake resistance requirements, brick-concrete structures are generally five to six stories below.

Steel-concrete structure housing

The structural material of this type of housing is reinforced concrete, that is, a mixture of steel bars, cement, coarse and fine aggregate (gravel), water, etc. Houses with this structure have the advantages of good seismic resistance, strong integrity, strong corrosion resistance, and durability. The rooms have relatively large bays and depths, and the space can be divided more freely. At present, this structure is mostly used in multi- and high-rise residential buildings, but the structure process is relatively complex and the construction cost is also high.

Ordinary residents cannot directly know the underground construction conditions of the building, so they can choose commercial houses with basements, because this type of house has relatively high requirements for foundation construction.

As long as the construction unit complies with relevant national standards, as far as the building materials of the house are concerned, the fire resistance of reinforced concrete structures is better than that of brick-concrete structures.

Question 4: What is a house frame structure? How to tell? Generally speaking, buildings can be divided into four categories based on their structural classification: brick-timber structure, brick-concrete structure, reinforced concrete structure and steel structure.

Steel-concrete structure housing - the structural material of this type of housing is reinforced concrete, that is, a mixture of steel bars, cement, coarse and fine aggregate (gravel), water, etc. Houses with this structure have the advantages of good seismic resistance, strong integrity, strong corrosion resistance, and durability. The rooms have relatively large bays and depths, and the space can be divided more freely. At present, this structure is mostly used in multi- and high-rise residential buildings, but the structure process is relatively complex and the construction cost is also high. Reinforced concrete buildings include frame structures, frame-shear wall structures, frame-tube structures, etc.

So the frame structure is a type of steel-concrete structure. Frame structure residence refers to a residence that is made of reinforced concrete poured into load-bearing beams and columns, and then assembled into individual units with prefabricated aerated concrete, expanded perlite, pumice, vermiculite and other lightweight plate partition walls. It is suitable for large-scale industrial construction, with high efficiency and good project quality. In addition to good earthquake resistance, frame structure housing also has the feature of being freely divisible. Within a house, bedrooms, living rooms, study rooms, etc. can be divided and reorganized by the buyer.

Question 5: What does full-frame structure mean, and how is it different from frame structure? Full frame structure, so to speak. You should understand the meaning of the frame structure, so I won’t say more here. Full frame structure is mainly different from half frame structure. For example, some houses have shops on the first or second floor at the bottom, and the shops are mostly frame structures, while the upper parts are brick-concrete structures. It is not a full frame structure.

Question 6: What are the buildings with frame structures? Department stores, hotels, multi-story supermarkets, multi-story restaurants, Beijing West Railway Station and other large-space reinforced concrete frame houses. They can be found everywhere, and most of the walls are filled walls.

Question 7: What is the specific definition of frame structure? Frame structure refers to a structure composed of beams and columns connected by rigid or hinged connections to form a load-bearing system. That is, a frame composed of beams and columns simultaneously resists horizontal loads and vertical loads that occur during use. The walls of houses with frame structures are not load-bearing and only play the role of enclosure and separation. They are generally built or assembled with prefabricated aerated concrete, expanded perlite, hollow bricks or porous bricks, pumice, vermiculite, ceramsite and other lightweight plates. Become.

The main advantages of frame buildings:

Flexible space separation, light weight, and material saving; it has the advantage of being able to flexibly match the building plan layout, which is conducive to arranging buildings that require larger space Structure; the beam and column components of the frame structure are easy to standardize and finalize, making it easy to adopt an assembled integrated structure to shorten the construction period; when a cast-in-place concrete frame is used, the integrity and stiffness of the structure are better, and good design and processing can achieve a higher It has good earthquake resistance effect and can cast beams or columns into various required cross-sectional shapes. ?

Question 8: How to distinguish whether a building is a brick-concrete structure or a frame structure 1. In fact, there is no need to break open the wall.

2. You can understand it by looking at the pillars.

3. The frame structure has strong columns and weak beams. Generally, the pillars are relatively large, at least much thicker than the wall thickness.

4. The setting of the frame structure usually has a column network. Able to install larger bays.

5. The brick-concrete structure relies on the brick wall to bear load, and the layout of the bays is relatively restricted.

Question 9: What is a full frame structure and what is a half frame structure? A full frame structure is mainly different from a half frame structure. For example, some houses have shops on the first or second floor at the bottom, and the shops are mostly frame structures, while the upper parts are brick-concrete structures. It is not a full frame structure. Full frame structure means that the entire building is a frame structure, rather than a hybrid form of frame structure + other structures (masonry structure, etc.)

Question 10: What is the difference between frame structure and concrete structure? Concrete Structure refers to all structures with concrete as the main material, and frame structures are basically made of concrete.

Most concrete structures include not only frame structures but also shear wall structures, frame shear wall structures, frame tube structures, etc.

So it can be said that frame structures (generally made of concrete) are concrete structures.

However, if it is a frame mainly made of steel, that is not the case.

Frame structure is a more specific explanation that this concrete structure is a structure with columns and beams as stress-bearing members.