Is the crack in the floor slab along the beam direction serious?

Severe. Reason:

1. Whether there is an over-standard load stacked and vibrated around the beam plate, resulting in the deformation of the beam and plate, and the strain leads to excessive stress and cracks.

2. Whether there are construction reasons, such as the tie bar of the plate.

The settings are not in place or too little.

3. Whether there is similar cracking phenomenon in addition to the nearby beam, the rest of the nearby columns are also similar to the cracking phenomenon, it is a structural problem, please contact the design and construction party immediately, and directly open a coordination meeting on site to solve it; This can have the most serious consequences, so be careful!

Brief introduction. Prefabricated panels.

It is the floor slab used in the early 20th century architecture, that is, the module or plate used in the project. Because the prefabricated concrete parts are produced and processed in the precast yard, they are transported directly to the construction site.

The installation is carried out, so it is called prefabricated panels. When making prefabricated panels, first nail the hollow model with wooden boards, after laying steel bars on the hollow part of the model, fill the hollow part with cement, and knock off the wooden board after drying, and the rest is the prefabricated panel.

Prefabricated slabs are used in many ways, such as cement slabs covered by ditches next to highways.

The cement slabs on the roof are all prefabricated panels. Nowadays, this method has been eliminated in house construction, and it has been replaced by a frame structure and a reinforced concrete structure.

The quality of safety has been further improved.

The analysis is as follows: May 1 whether there is an over-standard load stacked and vibrated around the beam plate, resulting in the deformation of the beam and plate, and the strain leads to excessive stress and cracks;

2. Whether there are construction reasons, such as the tie bar of the plate is not in place or too little;

3. Whether there is similar cracking phenomenon in addition to the nearby beam, the rest of the nearby columns are also similar to the cracking phenomenon, it is a structural problem, please contact the design and construction party immediately, and directly open a coordination meeting on site to solve it; This can have the most serious consequences, so be careful! Please rule it out beforehand.

Summary. Hello dear, the cracks at the junction between the beam and the floor are abnormal, and the cracks at the junction of the beam and the floor may be caused by the following reasons: 1. The beam and the floor structure are unevenly stressed or improperly configured.

The interstory structure of the floor slab remains unchanged, and the center position of the beam changes, so that the axial position of the beam changes, resulting in cracks. 2. The contact between the beam and the floor slab is not tight. If the contact between the beam and the floor slab is not tight, the weight of the beam will be transferred to other positions, causing the beam to bend, resulting in cracks.

3. The floor slab sinks and loosens. If the beam is fully fixed, and the floor slab sinks during long-term use, the floor slab will loosen, so that the beam will change position, bend, and cracks will appear. 4. Deformation of engineering performance.

Leakage, dents, cracks, damage and other causes can lead to cracks at the junction between beams and floor slabs, among which cracks are the most serious and the most common problems.

Hello dear, the cracks at the junction between the beam and the floor are abnormal, and the cracks at the junction of the beam and the floor may be caused by the following reasons: 1. The beam and the floor structure are unevenly stressed or improperly configured. The interstory structure of the floor slab remains unchanged, and the center position of the beam changes, so that the axial position of the beam changes, so that cracks appear in the reed.

2. The contact between the beam and the floor slab is not tight. If the contact between the beam and the floor slab is not tight, the weight of the beam will be transferred to its coarse position, causing the beam to bend and crack. 3. The floor slab sinks and loosens.

If the beam is fully fixed, and the floor slab sinks during long-term use, the floor slab will loosen, so that the beam will change position, bend, and cracks will appear. 4. Deformation of engineering performance. Leakage, dents, cracks, damage and other causes can lead to cracks at the junction between beams and floor slabs, among which cracks are the most serious and the most common problems.

Are there any big problems?

Dear, if it's just a very thin sewing and it doesn't expand over time, it's not a big problem, but the sewing is lengthening, deepening and widening over time.

Kiss! Hello, happy to answer your <>

There are 7 reasons for cracks in the construction of pro-floor slabs as follows: 1. Manifestation of penetrating cracks: penetrating cracks appear in the middle of cast-in-situ floor slabs.

Causes: The mix ratio, the material does not meet the requirements or the on-site water is added to cause the collapse to be too large, the pile load is too heavy, the mold is removed too early, and the maintenance is poor. The early strength of concrete is low, and it is caused by drying shrinkage during hydration and curing.

2. Manifestation of regular cracks on the beam side: regular cracks appear on both sides of the beam on the upper surface of the cast-in-place floor slab. Causes of formation:

The negative moment reinforcement of the beam surface is not enough or the reinforcement is trampled, resulting in the excessive protective layer of the negative reinforcement. 3. Manifestations of oblique cracks at the corners of the floor slab: oblique cracks occur at the corners of the cast-in-place floor slab.

Causes: The outer corner of the end room is not provided with radioactive reinforcing steel, and the floor slab is loaded too early or too heavy or too concentrated. 4. Manifestations of cracks around the holes of the embedded box:

The construction reserved holes and water and electricity pre-embedded virtual boxes produce extension cracks along the four corners of the holes. Causes: The floor construction hole is not embedded in the circular hole or the hole is too large, and the wheel around the hole is not provided with reinforcing steel.

5. Manifestations of cracking along the main reinforcement of the slab: micro-cracks appear along the cast-in-situ floor slab along the slab reinforcement. Causes of formation:

The floor bottom reinforcement and gluten protective layer are small, and the vertical distribution of the steel bar protective layer is too large or there is no distribution of reinforcement, resulting in the appearance of micro tung burning cracks in the steel bar part. 6. Manifestations of cracking along the embedded pipe: the cast-in-place floor slab is prone to cracks along the embedded line pipe.

Causes: The diameter of the embedded line pipe is too large or the thickness of the floor slab is thin, or the placement position is unreasonable, and it is not placed in the middle of the floor slab. 7. Irregular cracking manifestations:

Irregular cracks appear on the surface of the cast-in-place floor slab. Causes: The concrete water-cement ratio is too large or the coarse and fine aggregate gradation is poor, the secondary wiping time is unreasonable, and the trowel is not used for compaction and trowel.

Hope mine can help you <>

Do you have any other questions?

Dear Hello, it is not normal for cracks to appear at the junction of beams and floor slabs. This situation can be caused by problems in the design, construction, or use of the building. First of all, there may be flaws in the design of the building, such as improper connection of beams to the floor slabs or insufficient size of the beams, which can lead to cracks at the junction of the beams and the floor slabs.

Secondly, there may be quality problems during the construction process, such as uneven concrete pouring, insecure reinforcement binding, etc., which may also lead to the appearance of cracks. Finally, during the use of the building, such as the influence of natural factors such as ** and wind, it may also lead to cracks at the junction between the beam and the floor slab. If you find a crack at the junction between the beam and the floor slab, it is recommended to contact a professional building engineer or construction party for inspection and repair in time.

At the same time, it is also necessary to pay attention to the daily maintenance of the building, such as regular inspection, cleaning and repair, etc., to ensure the safety and stability of the mold and book building. In addition, the structure and materials of the building can also affect the cracks at the junction of beams and floor slabs. For example, reinforced concrete knotted macro structures are more earthquake-resistant than brick-concrete structures, so they are more safe and reliable in natural disasters such as **.

Therefore, when choosing building materials and structures, factors such as the environment in which the building will be used and the safety need to be taken into account. In conclusion, cracks at the junction of beams and floor slabs are not normal and may be caused by problems in the design, construction, or use of the building. It is recommended to contact a professional building engineer or construction party for inspection and repair in time, and pay attention to the daily maintenance of the building and the selection of suitable building materials and structures.

The abnormal cracks at the junction of the beam and the Zicheng floor slab may be caused by the quality of the component, the construction quality problem, the unreasonable design of the component or environmental changes. Quality problems of components: The material, size and strength of components do not meet the requirements, which may lead to deformation of components, resulting in cracks.

Construction quality problems: Improper installation of components may lead to uneven stress on components, which may cause cracks. Component design is not reasonable:

Improper size, shape, joints, etc. may cause uneven stress on the component, which may cause cracks. Environmental changes: Environmental changes such as humidity changes may cause uneven stress on components, which may cause cracks.

In short, if there is an abnormal crack at the junction between the beam and the floor, effective measures should be taken to ensure the quality of construction before the cause should be investigated in time.

Cracks around the junction between the beam and the floor are usually caused by the following reasons:1Structural problems with the building itself, such as unstable foundations, design errors, or improper construction.

2.Changes in the surrounding environment due to external factors such as temperature, humidity, vibration or load. If there is only a slight crack and there is no tendency to further expand, the condition of the crack can be temporarily monitored, and if the crack does not have a tendency to continue to expand, it can be patched at the junction and filled with construction glue.

If the crack grows larger, it may require further repairs, such as removing part of the slab and reconstructing it and reinforcing the beam connections. If you are unsure of what to do, it is advisable to find a professional building engineer or construction team for assessment and restoration.

Summary. It may be a temperature split. This type of crack is the most common in walls, and it is common at the junction of different materials, such as horizontal cracks at the junction of ring beams and brick masonry.

General materials have the properties of thermal expansion and cold contraction, and the deformation of the house structure is caused by the change of surrounding temperature, and the expansion coefficient of different materials is different, resulting in thermal cracks.

It may be a temperature split. This type of crack is the most common in walls, and it is common at the junction of different materials, such as horizontal cracks at the junction of ring beams and brick masonry. Generally, materials have the properties of thermal expansion and cold contraction, and the structure of the house is deformed due to the change of surrounding temperature, and the expansion coefficient of different materials is different, resulting in temperature cracks.

Manuscript silver. 1. Caused by uneven settlement of the foundation. The uneven settlement of the foundation will first cause the deformation of the frame structure, and the deformation of the frame structure will cause the cracking of the masonry structure first, and then the cracking of the reinforced concrete structure. Therefore, if the cast-in-place slab cracks are caused by uneven settlement of the foundation, the cracks in the wall masonry will generally occur.

2. Structural design reasons. (1) Insufficient consideration is given to the serviceability limit state (to ensure that the structure does not produce deformation, cracks, durability, vibration and other limit states that affect the use of the structure in the normal service state). In the analysis of the stress system of the floor slab, the internal force and coordination deformation between cast-in-situ structures in the three-dimensional space are not considered enough.

3) In the design, the reinforcement of the Li rotten ruler structure is not paid attention to or the height of the radial reinforcement is not reasonable, and there is no reinforcing rib in the weak link. 3. Construction reasons. In the process of reinforcement binding, the construction unit does not strictly follow the construction requirements of the drawings and atlases for the corners and end reinforcement construction nodes, especially the number and spacing of the diagonal radial reinforcement are not strictly implemented in accordance with the design documents, and the pouring vibration and maintenance of concrete are not in place.