CN115538765A - Reinforcing system and method for building expansion joints in narrow space formwork - Google Patents

Abstract

The invention discloses a system and a method for reinforcing a template in a narrow space of an expansion joint of a house, wherein the system is arranged on building structures at two sides of the expansion joint and comprises a sleeve pre-buried and distributed in the building structures, templates positioned at two sides of the building structures, vertical rods distributed and fixed at the outer sides of the templates at the two sides, opposite-pulling screw rods, cross rods distributed at the outer sides of the vertical rods far away from the expansion joint and inserted rods distributed at the outer sides of the vertical rods close to the expansion joint; the cooperation of sleeve both ends is passed the template of both sides and is spacing to the template inboard, and the sleeve is towards the one end downward sloping near the expansion joint, and the one end that passes corresponding sleeve and be close to the expansion joint to the pull screw rod is equipped with the holding ring, the other end cooperation has fastener and nut, and the inserted bar is inserted and is put on one row of holding ring with the height, and the fastener compresses tightly the side form board at place through horizontal pole and place side montant behind the locking nut, and the inserted bar compresses tightly the side form board at place through place side montant. The invention can reinforce the template at the narrow space of the house expansion joint, avoids the later stage water seepage risk, and has convenient assembly and disassembly and high tightness.

Description

Reinforcing system and method for building expansion joints in narrow space formwork

technical field

The invention belongs to the field of house construction, and in particular relates to a formwork reinforcement system and method for narrow space of house expansion joints.

Background technique

High-rise buildings are usually designed with expansion joints, which divide the building into multiple units. The expansion joints between each unit are usually very narrow, usually about 200mm, and it is difficult for workers to enter the construction, which makes it difficult to reinforce the structures on both sides of the expansion joints, especially There are shear walls on both sides, and it is very difficult to reinforce and remove the shear walls on both sides of the expansion joint.

For the narrow space of the expansion joints of the house, the traditional formwork construction method is to construct the shear wall on one side first, and then construct the shear wall on the other side, which leads to inconsistent progress in the same building, cross-construction and operation problems, and brings safety hazards and management difficulties. At the same time, the split-level construction method takes more time, which will have an impact on the construction period. Another thing is to fill the expansion joints with polystyrene boards, but it is labor-intensive and time-consuming, and the polystyrene boards are easy to deform, leak slurry, poor forming quality, high cost, difficult to dismantle, and have fire safety hazards, especially when the distance between expansion joints is less than 200mm. It is difficult to construct both sides of the expansion joint at the same time.

Contents of the invention

The purpose of the present invention is to provide a formwork reinforcement system and method for the narrow space of the expansion joint of the house. The present invention can reinforce the formwork in the narrow space of the expansion joint of the house, avoiding the risk of water seepage into the room in the later stage, convenient installation and disassembly, and high fastness ,low cost.

The technical scheme adopted in the present invention is:

A formwork reinforcement system for a narrow space of a house expansion joint, which is arranged on the building structure on both sides of the expansion joint, including sleeves pre-embedded and distributed in the building structure, formwork located on both sides of the building structure, distributed and fixed on the outside of the formwork on both sides The vertical rod, the pull screw, the horizontal rod distributed on the outside of the vertical rod far away from the expansion joint, the insertion rod distributed on the outside of the vertical rod close to the expansion joint; the two ends of the sleeve fit through the formwork on both sides and limit the position, the sleeve is inclined downward towards the end close to the expansion joint, the pull screw passes through the corresponding sleeve and the end close to the expansion joint is provided with a positioning ring, and the other end is equipped with a clip and a nut, and the insertion rod is inserted into the same height On a row of locating rings, the clip behind the locking nut presses the side formwork through the cross bar and the side vertical bar, and the insertion rod presses the side formwork through the side vertical bar.

Preferably, the sleeve is inclined downward by 1° to 3° toward the end close to the expansion joint.

Preferably, the building structure is a wall or a column.

Preferably, the vertical bar is made of wood.

Preferably, the crossbar is made of steel pipes, and the clips are made of mountain-shaped clips.

Preferably, the insertion rod adopts steel bars.

Preferably, the positioning ring is welded by steel bars.

Preferably, the sleeve adopts PVC pipe.

A formwork reinforcement method for narrow space expansion joints of houses, using the formwork reinforcement system for narrow space expansion joints of houses; when installing formwork, pre-embed distribution sleeves in the building structure on both sides of the expansion joints, and install formwork on both sides of the building structure , so that the two ends of the sleeve fit through the formwork on both sides and limit the inside of the formwork, the vertical rod is pre-fixed on the outside of the formwork on both sides, and then the pull screw is passed through the corresponding sleeve from the end far away from the expansion joint, and the insertion rod Insert it on a row of positioning rings at the same height, place the cross bar between the clamp and the side vertical bar, and lock the nut so that the clamp presses the side template and the insertion rod through the cross bar and the side vertical bar Press the side formwork through the side vertical bar, and then pour the concrete of the building structure after the formwork reinforcement is accepted; when removing the formwork, first loosen the nut, then pull the insert rod from the positioning ring, and then pull the pull screw from the sleeve The cylinder is pulled out, and then the cross bar and the formwork away from the expansion joint are recovered, and the formwork close to the expansion joint is hoisted out by the tower crane.

The beneficial effects of the present invention are:

The invention can reinforce the formwork at the narrow space of the expansion joint of the house, and the one with the angle sleeve can avoid the risk of water seepage into the room later, the installation and disassembly are convenient, the fastness is high, the mold can be used repeatedly, and the cost is low.

Description of drawings

Fig. 1 is a structural schematic diagram of a formwork reinforcement system for narrow space of house expansion joints in an embodiment of the present invention.

In the figure: 1-building structure; 2-formwork; 3-vertical rod; 4-sleeve; pole.

detailed description

The present invention will be further described below in conjunction with drawings and embodiments.

As shown in Figure 1, a narrow space formwork reinforcement system for house expansion joints is set on the building structure 1 on both sides of the expansion joint, including sleeves 4 pre-buried in the building structure 1, and sleeves 4 located on both sides of the building structure 1. Formwork 2, vertical rods 3 distributed and fixed on the outer sides of the templates 2 on both sides, pull screws 5, horizontal rods 10 distributed outside the vertical rods 3 away from the expansion joints, and insertion rods distributed outside the vertical rods 3 near the expansion joints 9. The two ends of the sleeve 4 fit through the template 2 on both sides and limit the inner side of the template 2. The sleeve 4 is inclined downward toward the end close to the expansion joint, and the pull screw 5 passes through the corresponding sleeve 4 and is close to the expansion joint. One end is provided with a positioning ring 6, and the other end is equipped with a clip 7 and a nut 8. The insertion rod 9 is inserted on a row of positioning rings 6 at the same height. After locking the nut 8, the clip 7 passes through the cross bar 10 and the side The vertical bar 3 compresses the side formwork 2 where it is located, and the insertion rod 9 compresses the side formwork 2 where it is located through the vertical bar 3 on the side where it is located.

In this embodiment, preferably, the sleeve 4 is inclined downward by 1° to 3° toward the end close to the expansion joint.

In this embodiment, preferably, the building structure 1 is a wall or a column.

In this embodiment, preferably, the vertical bar 3 is made of wood.

In this embodiment, preferably, the cross bar 10 adopts a steel pipe, and the clamp 7 adopts a mountain-shaped clamp.

In this embodiment, preferably, the insertion rod 9 adopts steel bars.

In this embodiment, preferably, the positioning ring 6 is welded by steel bars.

In this embodiment, preferably, the sleeve 4 is a PVC pipe.

In this embodiment, the pull screw 5 adopts M14, the steel bar diameter of the inserting rod 9 is 25 mm, the steel bar diameter of the positioning ring 6 is 10 mm, forming a circle with a diameter of 30 mm, the sleeve 4 is DN50, and the sleeve 4 and the pull screw 5 are distributed The spacing is 500×500mm.

A formwork reinforcement method for narrow space expansion joints of houses, which adopts the formwork reinforcement system for narrow space expansion joints of houses; The formwork 2 is installed on the side, so that the two ends of the sleeve 4 fit through the formwork 2 on both sides and limit the inner side of the formwork 2. The vertical rod 3 is pre-fixed on the outside of the formwork 2 on both sides, and then the pull screw 5 is moved away from the expansion joint. One end passes through the corresponding sleeve 4, insert the insertion rod 9 on a row of positioning rings 6 at the same height, place the cross bar 10 between the clip 7 and the side vertical bar 3, and lock the nut 8 to make the clip Part 7 compresses the side formwork 2 where it is located through the cross bar 10 and the side vertical bar 3, and the insertion rod 9 compresses the side formwork 2 where it is located through the side vertical bar 3, and then pours the concrete of the building structure 1 after the formwork 2 is reinforced and accepted; When removing the template 2, first loosen the nut 8, then pull out the insertion rod 9 from the positioning ring 6, then pull out the pull screw 5 from the sleeve 4, then recover the cross bar 10 and the template 2 away from the expansion joint, and pass it through the tower crane Hang out the template 2 near the expansion joint.

The invention can reinforce the formwork 2 in the narrow space of the expansion joint of the house, and the one with the angle sleeve 4 can avoid the risk of water seepage into the room in the later stage. It is easy to install and disassemble, has high fastness, can be used repeatedly, and has low cost.

It should be understood that those skilled in the art can make improvements or changes based on the above description, and all these improvements and changes should fall within the protection scope of the appended claims of the present invention.

Claims (9)

1. A formwork reinforcement system for narrow space of house expansion joints, characterized in that: it is arranged on the building structures on both sides of the expansion joints, including pre-embedded sleeves distributed in the building structure, formwork positioned on both sides of the building structure, distributed and The vertical rods fixed on the outside of the formwork on both sides, the pull screw rods, the horizontal rods distributed outside the vertical rods away from the expansion joints, the insertion rods distributed outside the vertical rods close to the expansion joints; the two ends of the sleeve fit through the two sides The formwork is limited to the inner side of the formwork, the sleeve is inclined downward toward the end close to the expansion joint, the pull screw passes through the corresponding sleeve and the end close to the expansion joint is provided with a positioning ring, and the other end is equipped with a clip and a nut, and the insertion rod Insert it on a row of positioning rings at the same height. After locking the nut, the clip presses the side formwork through the cross bar and the side vertical bar, and the insertion rod presses the side formwork through the side vertical bar. 2. The formwork reinforcement system for narrow space of building expansion joints according to claim 1, characterized in that: the sleeve is inclined downward by 1° to 3° toward the end close to the expansion joint. 3. The formwork reinforcement system for narrow space of house expansion joints according to claim 1, characterized in that: the building structure is a wall or a column. 4. The formwork reinforcement system for narrow space of house expansion joints according to claim 1, characterized in that: the vertical bars are made of wood. 5. The formwork reinforcement system for narrow space of housing expansion joints as claimed in claim 1, characterized in that: the cross bar is made of steel pipes, and the clips are made of mountain-shaped clips. 6. The formwork reinforcement system for narrow space of house expansion joints according to claim 1, characterized in that: the insertion rods are made of steel bars. 7. The formwork reinforcement system for house expansion joints in narrow spaces according to claim 1, wherein the positioning ring is welded by steel bars. 8. The formwork reinforcement system for narrow space of house expansion joints as claimed in claim 1, characterized in that: the sleeve is made of PVC pipe. 9. A method for reinforcing formwork in narrow spaces of expansion joints of houses, characterized in that: the formwork reinforcement system for expansion joints in narrow spaces of houses as claimed in any one of claims 1 to 8 is adopted; The distribution sleeve is pre-buried in the building structure, and the formwork is installed on both sides of the building structure, so that the two ends of the sleeve fit through the formwork on both sides and limit the inside of the formwork. The screw rod passes through the corresponding sleeve from the end far away from the expansion joint, inserts the insertion rod on a row of positioning rings at the same height, places the cross bar between the clip and the side vertical rod, and locks the nut to make the clip Press the side formwork through the cross bar and the side vertical bar, and the insertion rod presses the side formwork through the side vertical bar, and then pour the concrete of the building structure after the formwork reinforcement is accepted; when removing the formwork, loosen the nut first, Then pull out the insertion rod from the positioning ring, then pull out the pull screw from the sleeve, then recover the cross bar and the formwork away from the expansion joint, and lift out the formwork close to the expansion joint by the tower crane.

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