CN205954873U - Combination waterproof construction of assembled superstructure - Google Patents

Abstract

The utility model belongs to the technical field of construction engineering, and in particular relates to a combined waterproof structure of an assembled floor, including a waterproof structure at the joint between a prefabricated slab and a steel structure, on the opposite surface of the prefabricated slab and the steel structure, The steel structure is horizontally welded with water-proof steel plates, and the prefabricated plate is provided with transverse grooves or protrusions, and the joint is sealed by the post-casting body; it also includes a waterproof structure at the joint of the two prefabricated plates, On the opposite surfaces of the two prefabricated panels, protrusions or grooves are respectively arranged transversely, or one is provided with protrusions and the other is provided with grooves, and the joint is sealed by the post-casting body. The utility model solves the waterproof problem of the prefabricated panel structure in the construction industry.

Description

Combined Waterproof Structure of Prefabricated Floor

technical field

The utility model belongs to the technical field of construction engineering, and in particular relates to a treatment technology for joints between prefabricated slabs, steel pipe concrete columns, steel plate shear walls, U-shaped composite beams and prefabricated slabs in a full prefabricated floor slab structure system.

Background technique

Composite floor slabs are composed of prefabricated slabs and cast-in-place reinforced concrete layers, and are currently the most widely used structural components in construction industrialization projects. The waterproof treatment of laminated floor slabs mainly depends on the secondary pouring of concrete. The secondary pouring and pounding of concrete not only requires a large amount of construction, but also requires waiting for the concrete to solidify, so the construction period is prolonged.

Different from laminated floor slabs, fully prefabricated floor slabs, that is, the prefabricated floor slabs mentioned in this utility model, are spliced by prefabricated slabs as a whole. Its waterproof is mainly to deal with the waterproofing of splicing gaps, that is, seams, and the construction volume is large. Reduced, the construction period will be greatly shortened. The utility model mainly studies the waterproof problem of the joints of prefabricated floors, and mainly involves the waterproof treatment technology of prefabricated slabs and steel pipe concrete columns, steel plate shear walls, U-shaped composite beams and prefabricated slabs, so that the prefabricated buildings The cover not only has good waterproof effect, but also has a short construction period.

Utility model content

The technical problem to be solved by the utility model is to provide a combined waterproof structure of an assembled floor.

The utility model solves its technical problems through the following technical solutions, a combined waterproof structure of an assembled floor, including a waterproof structure at the joint between the prefabricated slab and the steel structure, and is characterized in that the prefabricated slab and the steel structure On the opposite surface of the steel structure, a waterproof steel plate is transversely welded, and the prefabricated plate is provided with transverse grooves or protrusions, and the joint is sealed by the post-casting body.

The steel structure mentioned here in the utility model mainly refers to the structure used as support in the prefabricated floor system, such as steel pipe concrete column, steel plate shear wall, U-shaped composite beam, etc.

The utility model sets a water-stop steel plate between the post-casting body and the steel structure, and the water penetrates along the gap between the steel structure and the post-casting body contact surface, and stops when it encounters the water-stop steel plate, and can no longer penetrate into it. The water-stop steel plate plays the role of cutting off the water infiltration path. Even if the water continues to infiltrate along the gap between the water-stop steel plate and the post-casting body, the water-stop steel plate also plays the role of extending the water infiltration path. Waterproof steel plates are installed at the joints to play a waterproof role. The waterproof principle between the prefabricated slab and the post-casting body of the utility model is as follows. When water penetrates along the gap between the prefabricated slab and the post-casting body, the grooves or raised structures on the prefabricated slab also play a role in changing the water. The direction of penetration and the effect of extending the penetration path of water, so it can also play a waterproof role.

As a preferred embodiment: the waterproof steel plate and the protrusion or groove run through the entire seam.

The longitudinal section of the groove on the prefabricated plate is trapezoidal, which is a trapezoidal groove, and the trapezoidal groove gradually narrows from the notch to the bottom of the groove.

Compared with the protrusion, the groove can improve the shear resistance of the post-casting body. In addition, the groove structure of the utility model is conducive to the filling and sealing of the post-casting body, so that it is difficult to leave unfinished parts between the post-casting body and the groove of the prefabricated plate. Pouring void.

The steel structure is also transversely welded with a supporting plate, the prefabricated plate is overlapped on the supporting plate, and the supporting plate constitutes the bottom plate of the joint. The setting of the supporting plate, on the one hand, facilitates the overlap between the prefabricated slab and the steel structure, and on the other hand, because the supporting plate is also the bottom plate of the joint between the steel structure and the prefabricated slab, it facilitates the pouring operation of the post-cast body.

If the steel structure is a support structure with high load-bearing strength requirements such as steel plate shear wall and U-shaped composite beam, it can also be treated as follows:

Channel steel one is pre-embedded in the prefabricated panel, channel steel two is welded on the steel structure, the channel steel on the prefabricated panel and the steel structure both extend to the opposite side, the ends are welded together, and cast In the post-cast body.

As a further preferred solution, on the corresponding position on the back of the steel plate welded with the steel structure of the second channel steel, a rib plate is also welded, and the rib plate and the second channel steel are butted together through the steel plate . The setting of the stiffener plate is mainly used to enhance the strength of the local area of the steel plate and reduce the deformation.

A combined waterproof structure of an assembled floor of the present invention also includes a waterproof structure at the joint of two prefabricated slabs. Grooves, or one with a protrusion and the other with a groove, the seam is sealed by the post-casting body.

As a preferred embodiment: the waterproof steel plate and the protrusion or groove run through the entire seam.

The longitudinal section of the groove on the prefabricated plate is trapezoidal, which is a trapezoidal groove, and the trapezoidal groove gradually narrows from the notch to the bottom of the groove.

Compared with the prior art, the utility model has the following beneficial effects:

(1) The utility model adopts water-stop steel plates on the side of steel structures such as steel pipe concrete columns, steel plate shear walls, and U-shaped composite beams at the joints of the prefabricated floor to change the water infiltration path, prolong the water infiltration path, and connect The side of the prefabricated slab on the other side of the seam adopts trapezoidal grooves to change the direction of water infiltration, prolong the water infiltration path, and pour concrete at the joint at one time to make the prefabricated floor slab and steel pipe concrete column, steel plate shear wall and U-shaped combination Beams are better connected, and the same is true between prefabricated panels and prefabricated panels. The utility model solves the waterproof problem of prefabricated panel structures in the construction industry;

(2) The combined waterproof structure of the prefabricated floor of the utility model is easy to install, which speeds up the construction speed of the fully prefabricated steel-concrete frame shear wall structure, shortens the construction period, is conducive to the industrialized production of buildings, and has significant social and social benefits. economic benefits.

Description of drawings

Figure 1 is a large sample of the connection between the prefabricated slab and the concrete filled steel tube column;

Figure 2 is a large sample of the connection between prefabricated panels and steel plate shear walls;

Figure 3 is a top view of a large sample of prefabricated panels connected to steel plate shear walls;

Figure 4 is a large sample of the connection between the prefabricated slab and the U-shaped composite beam (applicable if the height difference between the floor slabs on both sides is less than or equal to 50mm);

Figure 5 is a sample of the connection between the prefabricated slab and the U-shaped composite beam (applicable if the height difference between the floor slabs on both sides is greater than 50mm);

Figure 6 is a large sample of the connection between prefabricated panels and prefabricated panels.

detailed description

The utility model mainly studies the waterproof problem of the prefabricated floor. The following uses the waterproof structure at the joint between the steel pipe concrete column and the prefabricated slab, the waterproof structure at the joint between the steel plate shear wall and the prefabricated slab, and the joint between the U-shaped composite beam and the prefabricated slab. Taking the waterproof structure at the seam and the waterproof structure at the joint between the prefabricated slab and the prefabricated slab as examples, the combined waterproof structure of the prefabricated floor of the present invention will be specifically introduced in combination with the corresponding drawings.

Waterproof structure at the joint between concrete filled steel tube column and prefabricated slab

Concrete-filled steel tube column refers to a support column composed of steel tubes filled with concrete inside.

As shown in Figure 1, for the waterproof structure at the joint between the concrete-filled steel tube column 1 and the prefabricated slab 4, on the opposite surface of the prefabricated slab 4 and the concrete-filled steel tube column 1, a water-stop steel plate 11 is welded horizontally on both sides of the concrete-filled steel tube column 1, The prefabricated slab 4 is provided with transverse grooves 41 , and the joints 5 are filled with post-cast concrete 6 . The waterproof steel plate 11 and the groove 41 run through the entire seam 5 .

Water permeates along the gap between the concrete-filled steel tube column 1 and the post-cast concrete 6 contact surface, and stops when it encounters the water-stop steel plate 11. The gap between 11 and the post-cast concrete 6 continues to infiltrate, and the water-stop steel plate 11 also plays a role in prolonging the penetration path of water. waterproof effect. Groove 41 is set on the prefabricated slab 4, and when water penetrates along the gap between the prefabricated slab 4 and the post-cast concrete 6 contact surface, the groove 41 on the prefabricated slab 4 also plays a role in changing the infiltration direction of the water and prolonging the water penetration. The role of the penetration path, so it can also play a role in waterproofing.

The longitudinal section of the groove 41 on the prefabricated plate 4 is trapezoidal, which is a trapezoidal groove, and the trapezoidal groove narrows gradually from the notch to the bottom of the groove. The utility model is waterproof by setting grooves instead of protrusions, mainly because the grooves can improve the shear resistance of the post-cast concrete 6 . The trapezoidal groove structure is conducive to the sealing of the post-cast concrete 6 , so that it is difficult to leave unfilled gaps between the post-cast concrete 6 and the groove 41 of the prefabricated slab 4 .

The steel bars 42 pre-embedded in the prefabricated slab 4 whose ends protrude from the corresponding surface of the prefabricated slab 4 are bent and cast in the post-cast concrete 6 . The concrete-filled steel tube column 1 is also welded with supporting plates 12 on both sides in the transverse direction, and the prefabricated panels 4 are overlapped on the supporting plates 12 , and the supporting plates 12 constitute the bottom plate of the joint 5 .

The setting of the supporting plate 12 facilitates the overlap between the prefabricated slab 4 and the concrete-filled steel tube column 1 on the one hand, and on the other hand, because the supporting plate 12 is also the bottom plate of the joint 5 between the concrete-filled steel tube column 1 and the prefabricated slab 4, it is convenient The pouring operation of post-pouring concrete 6 has been completed.

The waterproof structure at the joint between the concrete filled steel tube column 1 and the prefabricated slab 4 in Fig. 1 is suitable for places where the load-bearing strength of the prefabricated slab 4 is not required to be high, and in places where the load-bearing strength of the prefabricated slab 4 is required to be high, the prefabricated slab can be appropriately strengthened supporting structure.

Waterproof structure at the joint between steel plate shear wall and prefabricated slab

The steel plate shear wall refers to a wall composed of two opposite steel plates and concrete filled between the two steel plates.

As shown in Figures 2 and 3, for the waterproof structure at the joint between the steel plate shear wall 2 and the prefabricated slab 4, on the opposite surface of the prefabricated slab 4 and the steel plate shear wall 2, the steel plate shear wall 2 is welded horizontally with a waterproof The steel plate 21 and the prefabricated slab 4 are provided with transverse grooves 41, and the joint 5 is filled with post-cast concrete 6. The waterproof steel plate 21 and the groove 41 run through the entire seam 5 .

In this embodiment, the waterproof principle of the waterproof steel plate 21 and the groove 41 provided at the joint between the steel plate shear wall 2 and the prefabricated slab 4 refers to the waterproof structure at the joint between the steel pipe concrete column and the prefabricated slab.

The steel bars 42 pre-embedded in the prefabricated slab 4 whose ends protrude from the corresponding surface of the prefabricated slab 4 are bent and cast in the post-cast concrete 6 . The steel plate shear wall 2 is also transversely welded with a supporting plate 22 , the prefabricated plate 4 is overlapped on the supporting plate 22 , and the supporting plate 22 constitutes the bottom plate of the joint 5 .

The channel steel 1 43 is pre-embedded in the prefabricated panel 4, and the channel steel 2 23 is welded on the steel plate shear wall 2. All extend to the opposite side, and the ends are welded together, and poured in the post-pouring concrete 6 .

The above-mentioned prefabricated slab 4 can well improve the load-bearing strength of the prefabricated slab 4 by embedding the first channel steel 43 and then overlapping with the second channel steel 23 welded on the steel plate shear wall 2 . In order to strengthen the strength of the local area of the steel plate and reduce the amount of deformation, the utility model is also welded with a reinforcing rib plate 24 on the corresponding position of the steel plate back of the steel plate shear wall 2 welded with the channel steel 23, and the reinforcing rib plate 24 is connected with the channel steel Two 23 are connected one by one through the steel plates, as shown in FIG. 2 .

It is different from the supporting structure of the steel plate shear wall to the prefabricated slab in the prior art (in the prior art, the prefabricated slab is generally supported by the way of angle steel and corbel, and the steel plate shear wall with the angle steel and corbel structure welded under the prefabricated slab Above), the utility model sets the supporting structure of the steel plate shear wall to the prefabricated slab in the joint between the steel plate shear wall and the prefabricated slab. The bearing capacity of the prefabricated slab is the same as that of the prior art, but it is more beautiful visually. Moreover, the supporting structure will not affect the height of the lower floor.

Waterproof structure at the joint between composite beam and prefabricated slab

The U-shaped composite beam consists of a U-shaped structure tank body made of steel plates and concrete filled in the tank body. The two tank walls of the tank body are of equal or unequal height. The inner side of the tank body extends or extends to the outer side of the tank body, and the flange is mainly used to support the floors on both sides of the U-shaped composite beam. The height of the floor is generally on a horizontal plane. In some cases, some areas such as kitchens and bathrooms require the floor to settle to a certain extent. The structural characteristics of the U-shaped composite beam make it possible to balance the height on both sides. Support issues for inconsistent slabs.

As shown in Figure 4, for the support of the prefabricated slab 4 with a difference in height of the board surface, the groove wall of the U-shaped composite beam 3 with a groove structure can be made higher than the groove wall of the other side according to the height difference of the board surface. The prefabricated slabs 4 on both sides of the U-shaped composite beam 3 are respectively supported on the flanges of the corresponding height groove walls, and the joints are cast-in-place concrete 6, which is pre-embedded in the two prefabricated slabs 4 whose ends protrude from the corresponding surfaces of the prefabricated slabs 4. The steel bars 42 are bent and anchored in the post-cast concrete 6 .

Although the U-shaped composite beam can well solve the support problem of the subsiding floor, the above-mentioned settlement height should not be too large. If the settlement height of the groove wall on one side of the U-shaped composite beam is too large, it will have a great impact on the mechanical properties of the U-shaped composite beam. If there is a large impact, it is generally required that the height difference between the two sides of the U-shaped composite beam should not exceed 50mm.

The waterproof structure at the joint between the U-shaped composite beam and the prefabricated slab in the utility model mainly refers to the waterproof structure between the U-shaped composite beam and the prefabricated slab that has settled when the height difference between the floor slabs on both sides of the U-shaped composite beam is greater than 50mm.

As shown in Figure 5, the waterproof structure at the joint between the U-shaped composite beam 3 and the prefabricated slab 4, on the opposite surface of the prefabricated slab 4 and the U-shaped composite beam 3, the U-shaped composite beam 3 is transversely welded with a waterproof steel plate 31 , the prefabricated slab 4 is provided with a transverse groove 41, and the joint 5 is filled with post-cast concrete 6 . The waterproof steel plate 31 and the groove 41 run through the entire seam 5 .

In this embodiment, the waterproof principle of the waterproof steel plate 21 and groove 41 provided at the joint between the U-shaped composite beam 3 and the prefabricated slab 4 refers to the waterproof structure at the joint between the concrete filled steel tube column and the prefabricated slab.

The steel bars 42 pre-embedded in the prefabricated slab 4 whose ends protrude from the corresponding surface of the prefabricated slab 4 are bent and anchored in the post-cast concrete 6 . The U-shaped composite beam 3 is also transversely welded with a support plate 32 , the prefabricated plate 4 is overlapped on the support plate 32 , and the support plate 32 constitutes the bottom plate of the seam 5 .

Same as the waterproof structure at the joint between the steel plate shear wall and the prefabricated slab, in this embodiment, the prefabricated slab 4 is also pre-embedded with channel steel 1 43, the U-shaped composite beam 3 is welded with channel steel 2 33, and the prefabricated slab 4 and The channel steel on the U-shaped composite beam 3, that is, channel steel one 43 and channel steel two 33, all stretch to the opposite side, and the ends are welded together, and poured in the post-pouring concrete 6. On the corresponding position on the back of the steel plate of the U-shaped composite beam 3 welded with channel steel 2 33, a stiffener plate 34 is also welded, and the stiffener plate 34 and channel steel 2 33 are butted through the steel plate one by one, as shown in Figure 5 Show.

In this embodiment, the overlapping structures of the first channel steel 43 and the second channel steel 33, and the function of the stiffener plate 34 can be referred to as the waterproof structure at the joint between the slab shear wall and the prefabricated slab.

Waterproof structure at the joint between prefabricated panels and prefabricated panels

As shown in FIG. 6 , the waterproof structure at the joint of the two prefabricated slabs is provided with grooves 41 transversely on the opposite surfaces of the two prefabricated slabs 4 , and the joint 5 is filled with post-cast concrete 6 . The groove 41 runs through the entire seam 5 . The groove 41 has the same structure as above. The steel bars 42 pre-embedded in the prefabricated slab 4 whose ends protrude from the corresponding surface of the prefabricated slab 4 are bent and anchored in the post-cast concrete 6 .

The utility model can well solve the waterproof problem of all prefabricated floor slabs in the construction industry. The prefabricated slabs in the utility model can be directly prefabricated, and the welding of waterproof steel plates on the steel structure is also very fast, so that the fully prefabricated floor slab adopting the waterproof structure of the utility model is conducive to speeding up the construction speed of the fully prefabricated assembly structure, Shortening the construction period is conducive to the industrialized production of buildings and has significant social and economic benefits.

Claims (10)

1. the combination waterproof construction of a kind of precast assemble floor, including the waterproof construction of precoated plate and steel construction seam crossing, its feature It is, on the opposite face with described steel construction for the described precoated plate, on described steel construction, transverse weld has steel plate for sealing water, described pre- Making sheet is provided with horizontal groove or projection, and described seam fills out envelope by rear pour mass.

2. the combination waterproof construction of precast assemble floor according to claim 1 is it is characterised in that described steel plate for sealing water and institute State projection or groove runs through seam described in whole piece.

3. the combination waterproof construction of precast assemble floor according to claim 2 is it is characterised in that arrange on described precoated plate For groove, the groove longitudinal section on described precoated plate is trapezoidal, is a trapezoidal groove, described trapezoidal groove is from notch to groove Bottom, becomes narrow gradually.

4. the combination waterproof construction of precast assemble floor according to claim 3 is it is characterised in that go back horizontal stroke on described steel construction To being welded with supporting plate, described precoated plate is overlapped on described supporting plate, and described supporting plate constitutes the base plate of described seam.

5. the combination waterproof construction of precast assemble floor according to claim 4 is it is characterised in that pre-buried in described precoated plate There is channel-section steel one, described steel construction is welded with channel-section steel two, the channel-section steel on described precoated plate and described steel construction all stretches to offside, end Head welds together, and it is internal to pour into a mould cast in the rear.

6. the combination waterproof construction of precast assemble floor according to claim 5 is it is characterised in that be welded with described channel-section steel On the steel plate back side relevant position of two steel construction, also it is welded with reinforcement gusset, described reinforcement gusset is passed through with described channel-section steel two Described steel plate docks one by one.

7. the precast assemble floor according to claim 1 ~ 4 any one claim combination waterproof construction it is characterised in that Described steel construction is steel core concrete column or steel plate shear force wall or U-shaped combination beam.

8. the combination waterproof construction of a kind of precast assemble floor, the waterproof construction including two precoated plate seam crossings it is characterised in that On the opposite face of precoated plate described in two, it is transversely provided with projection or groove respectively, or one is provided with raised another and is provided with groove, institute State seam and envelope is filled out by rear pour mass.

9. the combination waterproof construction of precast assemble floor according to claim 8 is it is characterised in that described projection or groove pass through Wear seam described in whole piece.

10. the combination waterproof construction of precast assemble floor according to claim 9 is it is characterised in that set on described precoated plate Put for groove, the groove longitudinal section on described precoated plate is trapezoidal, is a trapezoidal groove, described trapezoidal groove is from notch to groove Bottom, becomes narrow gradually.