CN212358403U

CN212358403U - A reinforced structure for bar brick base

Info

Publication number: CN212358403U
Application number: CN202020706469.8U
Authority: CN
Inventors: 顾夏英; 顾亮; 顾天熊; 沈荣荣
Original assignee: Suzhou Zhonggu Building Science And Technology Co ltd
Current assignee: Suzhou Zhonggu Building Science And Technology Co ltd
Priority date: 2020-04-30
Filing date: 2020-04-30
Publication date: 2021-01-15
Anticipated expiration: 2030-04-30

Abstract

The utility model discloses a reinforced structure for bar brick base, including a plurality of shoulder pole roof beams that span bar brick base, its characterized in that: and two sides of the strip-shaped brick base are respectively provided with a reinforced concrete ground beam, two ends of each carrying pole beam are respectively and fixedly connected with the corresponding reinforced concrete ground beams, and a section steel support is arranged in each carrying pole beam in a penetrating way to serve as a pin. The utility model discloses an effective reinforcement to bar brick base can avoid because of the inhomogeneous differential settlement that leads to of atress.

Description

A reinforced structure for bar brick base

Technical Field

The utility model relates to a basis of fixed building, concretely relates to carry out reinforced (rfd) structure to fixed building basis, especially be used for the reinforced structure of bar brick base.

Background

At present, a plurality of ancient buildings for controlling and protecting are reserved in China, such as Su-style buildings, Anhui-style buildings and the like, and in order to protect the environment and the cultural heritage, the old buildings cannot be directly dismantled, and the ancient buildings for controlling and protecting are generally required to be repaired as old as before. The foundation has an important position for ensuring the safe use in the later period of a house, and the shallow buried bar brick stone foundation is mostly used in the type of ancient building control and protection, so that the foundation reinforcement has practical engineering significance and practical value.

The Chinese patent application CN101476339A discloses a method for reinforcing a bar foundation by using a carrying pole beam, wherein the carrying pole beam is spanned and poured on a part needing to be reinforced in the bar foundation, reinforcing columns are arranged below two sides of the carrying pole beam to bear the carrying pole beam, the carrying pole beam is used for sharing the original load of the bar foundation, and part of the upper load is led to pass through the carrying pole beam sensing reinforcing pile. According to the content disclosed by the application, the scheme is mainly used for the conditions that the conditions such as building storey-adding reconstruction, adjacent stacking and adjacent foundation pit excavation affect the foundation, and is mainly suitable for the reinforced concrete structure foundation.

Therefore, there is a need to provide a new reinforcing structure for a strip brick base.

Disclosure of Invention

The invention aims at providing a reinforced structure for a strip-shaped brick base, which realizes effective reinforcement of a shallow-buried strip-shaped brick base through structural design.

In order to achieve the purpose of the invention, the technical scheme adopted by the utility model is as follows: a reinforced structure for a bar-shaped brick foundation comprises a plurality of carrying pole beams stretching across the bar-shaped brick foundation, wherein two sides of the bar-shaped brick foundation are respectively provided with a reinforced concrete ground beam, two ends of each carrying pole beam are respectively and fixedly connected with the corresponding reinforced concrete ground beams, and profile steel supports are arranged in the carrying pole beams in a penetrating mode to serve as pin pieces.

In the technical scheme, the reinforced concrete ground beam is matched with the shoulder pole beam, so that uniform stress is facilitated, and the force transmission effect is improved; meanwhile, the structural steel support can be used for transmitting the stress of the wall body to the ground beam.

According to the preferable technical scheme, the shoulder pole beams are uniformly distributed along the length direction of the strip-shaped brick base, and the interval between every two adjacent shoulder pole beams is 300-1000 mm.

In a more preferable technical scheme, the interval between the adjacent shoulder pole beams is 800 mm.

According to the preferable technical scheme, the section steel support is 14a I-shaped steel.

According to a further technical scheme, the section steel support is of an H-shaped structure formed by horizontally-arranged section steel penetrating through the strip-shaped brick base and vertically-arranged section steel welded at two ends of the horizontally-arranged section steel.

The vertically arranged profile steels are respectively positioned in the reinforced concrete ground beams on the same side.

In the technical scheme, the reinforced concrete ground beam is arranged adjacent to the strip-shaped brick base. In actual construction, the reinforced concrete ground beam and the wall body can be connected into a whole without leaving a gap so as to better transmit stress.

According to the further technical scheme, lateral reinforcing steel bars are arranged among all the shoulder pole beams, and one ends of the lateral reinforcing steel bars are embedded into the strip-shaped brick foundations.

When rubble is arranged below the strip-shaped brick base, implanted reinforcing steel bars are respectively arranged on two sides of the rubble, and the implanted reinforcing steel bars are embedded into the lower part of the ground beam integrally poured with the reinforced concrete ground beam.

Because of the application of the technical scheme, compared with the prior art, the utility model has the following advantages:

1. the utility model realizes the effective connection among the foundation to be reinforced, the shoulder pole beam and the reinforced concrete ground beam by respectively arranging the reinforced concrete ground beams at the two sides of the bar-shaped brick base and fixedly connecting the two ends of the shoulder pole beam with the corresponding reinforced concrete ground beams, thereby improving the force transmission effect and avoiding the problem that the shoulder pole beam generates torsional stress when the foundation subsides unevenly;

2. the utility model discloses a wear to establish shaped steel and hold in the palm the round pin spare as the shoulder pole roof beam, increase intensity on the one hand, on the other hand more can give the grade beam to the weight transfer of former wall body.

Drawings

FIG. 1 is a structural elevation view of a first embodiment;

FIG. 2 is a schematic top view of the reinforcing structure of the foundation under the wall of FIG. 1;

FIG. 3 is a schematic cross-sectional view of the position of the shoulder pole beam according to one embodiment;

FIG. 4 is a schematic cross-sectional view of a non-pole beam according to an embodiment;

FIG. 5 is a schematic sectional view showing the position of the shoulder pole beam according to the second embodiment;

fig. 6 is a schematic cross-sectional view of the non-pole beam according to the second embodiment.

Wherein: 1. a strip-shaped brick base; 2. a reinforced concrete ground beam; 3. a shoulder pole beam; 4. horizontally arranging section steel; 5. vertically arranging profile steel; 6. laterally reinforcing steel bars; 7. entering a door step edge stone; 8. paving a pasting layer on the outdoor road bricks; 9. rubble; 10. implanting steel bars; 11. the large part is buried under the ground beam.

Detailed Description

The invention will be further described with reference to the following drawings and examples:

the first embodiment is as follows: referring to fig. 1 to 4, the reinforcing structure for the bar-shaped brick foundation comprises a plurality of carrying pole beams 3 crossing the bar-shaped brick foundation 1, wherein two sides of the bar-shaped brick foundation 1 are respectively and closely adjacent to a reinforced concrete ground beam 2, and two ends of each carrying pole beam 3 are respectively and fixedly connected with the corresponding reinforced concrete ground beams 2.

The shoulder pole beam 3 is internally provided with a section steel support as a pin, as shown in fig. 3, the section steel support is of an H-shaped structure formed by a horizontally arranged section steel 4 penetrating a strip-shaped brick base and vertically arranged section steels 5 welded at two ends of the horizontally arranged section steel 4, and the vertically arranged section steels 5 are respectively positioned in the reinforced concrete ground beam 2 at the same side. In this embodiment, the section steel bracket is made of 14a I-steel. The shoulder pole beams are uniformly distributed along the length direction of the strip-shaped brick base, and the interval between the adjacent shoulder pole beams is 800 mm.

In the position without the shoulder pole beam, as shown in fig. 4, a lateral reinforcing steel bar 6 is arranged in the reinforced concrete ground beam 2, and one end of the lateral reinforcing steel bar is embedded into the bar-shaped brick base 1.

The reinforced concrete ground beam is matched with the shoulder pole beam, so that uniform stress is facilitated, and the force transmission effect is improved; meanwhile, the structural steel support can be used for transmitting the stress of the wall body to the ground beam.

The entire reinforcing structure is located below the entry step edge stones 7 and the outdoor road tile pavers 8.

The actual manufacturing construction process flow comprises the following steps:

paying off → earth excavation → material preparation → static force cutting and pore forming → hole cleaning → steel frame installation → steel bar binding → erecting template → concrete pouring.

The method comprises the following specific steps:

1. measurement positioning pay-off

A. The positioning point is based on: and positioning according to the actual situation of the site and the construction drawing.

B. Control network arrangement in the field: a measurement control point control network (comprising coordinate control points and elevation control points) is arranged in the field area.

C. A measuring tool:

1) setting an elevation control point by adopting a level gauge;

2) the positioning of the building axis is carried out by adopting a theodolite;

3) other auxiliary tools: 50m steel rule, wooden pile, steel bar pile, ink fountain, paint, etc.

D. Building axis positioning: and positioning the building axis by using a theodolite according to the known axis coordinate control point, and arranging the scales on other corresponding lines by using a steel scale.

E. Building object height measurement: and measuring the elevation of each procedure of the building by adopting a level gauge according to the known elevation control point.

2. Excavation of foundation trench

1) Before the foundation trench is excavated, an excavation sideline of the foundation trench is placed (a construction operation surface is reserved according to requirements).

2) The foundation trench excavation should satisfy the foundation design bottom elevation.

3) And after the foundation trench is excavated, original soil with the depth of 300mm is reserved for manual trench cleaning.

4) And a construction temporary road and construction precipitation work are required to be carried out before foundation trench excavation.

5) Before the foundation trench is excavated, an owner provides underground drawings such as an underground pipe network, an underground cable and an underground optical fiber for a construction unit or provides written materials such as an underground pipe network, an underground cable and an underground optical fiber.

6) Before the foundation trench is excavated, the owner should clear all the ground obstacles out of the site and provide a construction operation surface for a construction unit.

7) And when the foundation trench is excavated, the original brick foundation is prevented from being damaged as much as possible, and the disturbance to the original foundation is reduced as much as possible.

3. Preparing materials:

according to design requirements and anchoring parameters, steel bars and section steel are prepared, and the blanking length is required to be noticed.

4. And (3) static force cutting to form a hole:

and positioning the elastic line at the position where the steel pin key needs to be newly added, and performing static cutting to form a hole according to the positioned position.

5. And cleaning the holes, namely cleaning impurities and ash brick scraps in the rectangular holes after static cutting.

6. Installation of section steel

Notice the level and place shaped steel and vertically place shaped steel welded connection, form an H shape, respectively weld 1 8 reinforcing bars of diameter in the shaped steel web both sides of vertical placing, form the drawknot muscle and be fixed in the steel reinforcement cage.

7. Binding and welding steel bars:

checking the steel bar semi-finished product: checking the processed semi-finished steel bars according to a design drawing, checking the specification, the shape, the model and the variety of the semi-finished steel bars, and then hanging and stacking the steel bars.

Binding steel bars: the steel bars should be bound in sequence, generally, the long axis and the short axis are sequentially bound from one end to the other end. During operation, the line is drawn, the iron is paved, the hoop is penetrated, the binding is carried out and finally the forming is carried out according to the requirements of the drawing.

The position of the stressed steel bar lap joint should be correct. The joints are staggered, the upper rib is in the midspan, and the lower rib is at the support as much as possible; the area of overlapping reinforcement over the length of each lap joint should not exceed 1/4 of the total area of reinforcement over that length. All joints of the stressed steel bars and the stirrups are bound completely, so that the buckles cannot jump.

The original and newly-arranged reinforcing steel bars are subjected to rust removal treatment, and the stressed reinforcing steel bars are welded one by one in a partitioned, layered and segmented manner.

Binding a mortar cushion block: the thickness of the steel bar protective layer needs to meet the requirements of design and construction specifications, and the cushion blocks are firmly bound with the steel bars and are not omitted.

8. Supporting a template:

determining an assembly template scheme: the scheme of beam assembling template should be made first, and the distance and size should be calculated.

Installing a template: the template is positioned and reinforced according to the assembled template, and is required to be firmly installed, not to be loosened and correct in position and section.

Template pre-inspection: after the template is installed, the cross section size, elevation, split bolts, connecting rod supports and the like are pre-checked, and the requirements of design drawings and construction specifications are met.

9. Pouring concrete:

before concrete is poured, the original component concrete is cleaned to a compact position, the surface is roughened, scum and dust are removed, the surface is cleaned, and the component concrete is treated by interface agents such as cement paste and the like.

The concrete is labeled C30 and is poured using commercial concrete.

When concrete is poured, the concrete is directly poured into the mold in sequence; if the racking exceeds the initial setting time, the joint is processed according to the construction joint requirement. When the tower crane bucket is used for directly discharging materials and feeding the materials into the die, the height between the discharge hole of the tower crane bucket and the operation surface is preferably 30-40 cm, and the materials cannot be centralized and poured.

Vibrating: an oblique vibrating method is adopted along the sequential direction of beam casting, and the inclination angle of a vibrating rod and the horizontal plane is about 30 degrees. The rod head is forward, the distance between the rod inserting heads is preferably 50cm, and the leakage vibration is prevented. The vibration time is based on the air bubbles generated by the slurry turning of the concrete surface. The surface of the concrete is rubbed with a wooden trowel to be flat along with vibration and marking along with the height line.

Reserving and connecting branches: joints are generally not accessible. Stay the racking should in the 1/3 within range in the middle of adjacent two posts, get rid of racking department and should keep off with the template in advance well, stay to become straight racking. When construction continues, concrete at the joint is firstly wetted by water and grouted, so that good joint of new concrete and old concrete is ensured; and then pouring the concrete with the original strength grade.

And (5) maintenance: after concrete is poured, the concrete is covered with water for maintenance within 12 hours at normal temperature, the watering frequency is preferably kept to keep the concrete moist, and the maintenance time is not less than seven days and nights.

Example two: referring to fig. 5 and 6, a reinforcing structure for a strip brick foundation, the upper general structure of which is the same as that of the first embodiment, is suitable for reinforcing a building with a rubble foundation under the strip brick foundation. As shown in fig. 5 and 6, an embedded steel bar 10 is respectively disposed at both sides of the rubble 9, and a ground beam lower buried expansion part 11 integrally cast with the reinforced concrete ground beam surrounds the embedded steel bar.

The structure of the present embodiment can further reinforce the foundation having the rubble.

Claims

1. The utility model provides a reinforced structure for bar brick base, includes a plurality of shoulder pole roof beams that span bar brick base which characterized in that: and two sides of the strip-shaped brick base are respectively provided with a reinforced concrete ground beam, two ends of each carrying pole beam are respectively and fixedly connected with the corresponding reinforced concrete ground beams, and a section steel support is arranged in each carrying pole beam in a penetrating way to serve as a pin.

2. The reinforcing structure for a slab brick foundation as claimed in claim 1, wherein: the shoulder pole beams are uniformly distributed along the length direction of the strip-shaped brick base, and the interval between every two adjacent shoulder pole beams is 300-1000 mm.

3. The reinforcing structure for a slab brick foundation as claimed in claim 2, wherein: the interval between the adjacent shoulder pole beams is 800 mm.

4. The reinforcing structure for a slab brick foundation as claimed in claim 1, wherein: the profile steel support is 14a I-shaped steel.

5. The reinforcing structure for a strip brick foundation according to claim 1 or 4, wherein: the section steel support is of an H-shaped structure formed by horizontally-arranged section steel penetrating through the strip-shaped brick base and vertically-arranged section steel welded at two ends of the horizontally-arranged section steel.

6. The reinforcing structure for a strip brick foundation of claim 5, wherein: the vertically arranged profile steels are respectively positioned in the reinforced concrete ground beams at the same side.

7. The reinforcing structure for a strip brick foundation of claim 5, wherein: the reinforced concrete ground beam is arranged adjacent to the strip-shaped brick base.

8. The reinforcing structure for a slab brick foundation as claimed in claim 1, wherein: and lateral reinforcing steel bars are arranged in the reinforced concrete ground beams among the positions of the shoulder pole beams, and one ends of the lateral reinforcing steel bars are implanted into the strip-shaped brick foundations.

9. The reinforcing structure for a strip brick foundation of claim 8, wherein: when rubble is arranged below the strip-shaped brick base, implanted reinforcing steel bars are respectively arranged on two sides of the rubble, and the implanted reinforcing steel bars are embedded into the lower part of the ground beam integrally poured with the reinforced concrete ground beam.