What are cap bars, plate bars, stirrups. There is also the problem of the steel frame structure.

Cover bar is often said to erect bar, structural bar. Generally speaking, the erection bar is used to erect stirrups in the beam, almost appear in the beam above the three limb hoops, that is, the ribs on both sides are passed, and the middle ribs only have additional ribs (that is, we say pick ribs), if there is no erection bar, the limb stirrups in the middle can not be tied, so there is a erection bar. General mechanics stipulates that the bending distance of the bottom tension of the lower side is the direction of the positive bending distance, so the top is the negative bending distance, and there is a negative bending moment at the end, so it is necessary to match the structural reinforcement, that is, the negative reinforcement, and the cover reinforcement.

Stirrups are used to meet the shear strength of oblique cross-section, and connect the tension main reinforcement and the compression zone concrete to make them work together, in addition, used to fix the position of the main reinforcement and make various reinforcements in the beam form the reinforcement skeleton of the reinforcement. In the calculation of oblique cross-section, the shear bearing capacity can be improved. Axial compression members with welded ring stirrups or spiral stirrups can also increase their load-bearing capacity.

The plate is divided into one-way and two-way plates, due to the bending bearing, generally the bottom of the plate is covered with steel bars, and there are negative reinforcements at the bearings.

The steel structure industry is usually divided into five sub-categories: light steel structure, high-rise steel structure, residential steel structure, space steel structure and bridge steel structure.

Characteristics of steel structure: 1. The weight of the steel structure is light 2. The reliability of the steel structure is high 3. The vibration resistance (earthquake) and impact resistance of the steel are good 4. The degree of industrialization of steel structure manufacturing is high 5. The steel structure can be assembled accurately and quickly 6. It is easy to make a sealed structure 7. The steel structure is easy to corrode 8. The fire resistance of the steel structure is poor The grade and performance of the steel used in the steel structure 1. Carbon structural steel: Q195, Q215, Q235, Q255, Q275, etc. 2. Low-alloy high-strength structural steel 3. High-quality carbon structural steel and alloy structural steel 4. Special purpose steel.

The landlord wants to see if the building is a steel structure can look at these two points: 1Adopt lightweight H-beam (welded or rolled; variable cross-section or equal cross-section) is made into a door-shaped rigid frame, C-type, Z-type cold-formed thin-walled steel is used as purlins and wall beams, profiled steel plates or lightweight sandwich panels are used as roofing and wall enclosure structures, and high-strength bolts, ordinary bolts and self-tapping screws and other connectors and sealing materials are assembled, which is a light steel structure.

2.The use of section steel, steel plate connection or welding into components, this is the high-rise steel structure.

In a word, a structure in which the main load-bearing components are made of steel is a steel structure.

That's right, what Comrade Yayin said is that the cover bar is not a structural bar, and the structure is configured according to the requirements of the specification, and there is no need to calculate. The negative bar is calculated by the bending moment, I hope my mistake is not misleading you. Error is hereby acknowledged.

The cover bar is generally arranged on the top of the plate to bear the effect of the negative bending moment between the supports.

Stirrups are often of two kinds, one is the stirrups of the column and the other is the stirrups of the beam, the stirrups of the column are mainly fixed the longitudinal stress bars of the column, and the stirrups of the beam are the main fixing of the low ribs and gluten of the beam, and the beam sometimes sets up the corresponding structural reinforcement according to the structural requirements, for example, the waist bar of the structure, the waist bar of torsional resistance, etc., then the shape of the stirrups is often rectangular, and there is a spiral, referred to as the spiral stirrups, which are often used in the circular column, and then the stirrups can be divided into single limb stirrups (also known as Rachel bars) according to the number of limbs, In the column, the stirrups are mainly used to bear the compressive stress transmitted by the upper load, while the stirrups in the beam are mainly used to assist the gluten and low reinforcement to resist the shear stress caused by the bending moment.

Plate reinforcement, as the name suggests, is the inherent steel bar in the plate, often double-layer two-way reinforcement, simply put, it is a double-layer steel mesh sheet, but there are negative reinforcements that resist bending moment (the cover reinforcement mentioned earlier) around it, there is a small concrete test block under the bottom reinforcement bar, to avoid direct contact between the reinforcement and the template, so as to obtain the protective layer of the plate, then the reinforcement in the upper layer is separated from the reinforcement of the lower layer with the bench reinforcement, so that the second protective layer of the plate is formed, usually the plate is divided into one-way plate (one-way force) according to the force, Two-way plate (two-way force).

Steel frame structure is now more and more widely used as a structural form, because of its own advantages, is gradually replacing concrete. According to the size of the amount of steel, divided into light steel structure, heavy steel structure, now commonly used is light steel structure, such as some workshops, etc., steel frame structure, mainly section steel or composite steel structure, specific according to the design requirements, the judgment method is also very simple, the main load-bearing components are cast-in-place or precast concrete components, then the building is an obvious concrete structure, if the load-bearing components of the steel structure components (steel beams, steel columns, profiled steel plates、、、 then it means that the building belongs to the steel frame structure!

Having said all of the above, I hope it will help you!

Correct: the one upstairs.

Cap reinforcement refers to the top reinforcement designed according to mechanical requirements. The frame reinforcement refers to the gluten that a beam does not need to be configured with gluten (top reinforcement) to meet the mechanical requirements, but the structure requires the gluten that must be configured. The structural requirements can be understood as follows:

Without gluten, stirrups can't be put aside, so they have to be configured; On the other hand, the safety factor can be enhanced.

Plate reinforcement is the reinforcement used for floor slabs.

Stirrups refer to the reinforcement that wraps up the beam gluten and the bottom bar. Its shape is rectangular. Of course, if there is a rectangular pattern, there will be a square pattern (for columns). Mainly resists shear forces.

As for the problem of the steel frame structure, the comrade upstairs has already arrived. However, once the building is formed from the outside, it is impossible to distinguish whether it is a steel frame structure building.

Dear, I'm glad to answer for you: What is structural reinforcement? Answer: Structural reinforcement is a steel ear set up in the reinforced concrete component considering various factors that are difficult to measure.

The erection reinforcement is arranged on both sides of the outer edge of the compression zone of the beam, and the stirrups are fixed and the reinforcement skeleton is formed with a guess pin. If the compression zone is equipped with longitudinal compression reinforcement, then the bucket erection reinforcement can no longer be configured. The diameter of the erection reinforcement is related to the span of the beam.

Structural reinforcement is the reinforcement that is set according to the construction needs in the reinforced concrete structure.

Compared with the stressed steel bar, the structural steel bar does not bear the main force, but only plays the role of maintenance, tie knot and distribution. Scattered.

The types of structural reinforcement are: distribution reinforcement, structural waist reinforcement, erection reinforcement, reinforcement perpendicular to the main beam, reinforcement perpendicular to the load-bearing wall, and additional reinforcement for the slab corner.

Bundle reinforcement: It is used to meet the shear strength of the oblique section and connect the reinforced steel bar of the stressed main reinforcement and the mixed reinforcement skeleton in the compression zone. It is divided into single-limb trembling stirrups, open rectangular stirrups, closed rectangular stirrups, diamond stirrups, polygonal stirrups, tic-tac-toe stirrups and circular stirrups.

Structural reinforcement: Reinforcement that is set up to consider various factors that are difficult to measure within a reinforced concrete component. It is the reinforcement that is laid out according to the mandatory requirements of the national building structure design code and does not need to be recalculated by the designer, which is the structural reinforcement, such as the medium and long reinforcement of the unidirectional stress plate and the encryption of the core area of the column.

1. a cover beam.

The A reinforcement skeleton B reinforcement skeleton is the two types of the reinforcement skeleton A and B, and the two types of steel reinforcement are processed in the frame form, because the main reinforcement of the cap beam reinforcement is installed in the form of skeleton pieces.

2. The ribs are combined together to form a complete grid, which is called "steel cage", "steel mesh", "steel skeleton", etc. A complete reinforcement grid is conducive to restraining concrete and improving the integrity of concrete components. Among them, the reinforcement mesh generally refers to the combination of flat reinforcements, such as the longitudinal and transverse reinforcement in the floor slab; Reinforcement skeleton generally refers to a three-dimensional combination of reinforcement, such as reinforcement in beams and columns.

The steel skeleton is pre-tied, which is mostly seen in brick-concrete construction: (structural columns, beams, etc.) are prefabricated and tied in advance, and those that are directly hoisted as a whole during construction belong to the steel skeleton.

3. The cap beam [bent cap] refers to the beam set at the top of the row frame pile pier for supporting, distributing and transmitting the load of the superstructure. Also known as the hat beam. Beams of reinforced concrete or less reinforced concrete are set on piers (platforms) or row piles.

It is the frame form of two kinds of steel bar processing, and the main reinforcement of the cap beam is generally installed in the form of skeleton pieces.