Advanced sealing system for post-cast strip of basement exterior wall

Abstract

The utility model provides a basement exterior wall post-cast strip advanced sealing system, and relates to the technical field of basement exterior wall construction, the outer side end of a basement exterior wall is provided with a prefabricated sealing plate used for sealing a post-cast strip, the prefabricated sealing plate comprises a plurality of prefabricated cover plates, and the prefabricated cover plates are installed in a stacked mode from the bottom to the top of the basement exterior wall. The prefabricated cover plate comprises a cement mortar base, a steel reinforcement framework is arranged in the cement mortar base, steel wire meshes are arranged at the upper end and the lower end of the steel reinforcement framework, and the cement mortar base is connected with post-cast strip reserved steel bars through a plurality of tie steel wires. The device can reduce the measure cost, is convenient to operate, and saves the construction period.

Description

TECHNICAL FIELD

[0001] The utility model relates to basement outer wall construction technical field, concretely is a kind of basement outer wall post-cast strip advanced closure system. BACKGROUND

[0002] To prevent basement outer wall from generating harmful cracks due to uneven shrinkage or uneven settlement, post-cast strip is left on the basement outer wall during construction, and after the completion of the structure on both sides and the basic stability of settlement, post-cast strip pouring is carried out to connect the structure into a whole.

[0003] In actual construction, in order to shorten the site construction period and meet the needs of safe and civilized construction, backfilling operation needs to be carried out in advance, but the existence of post-cast strip affects the backfilling of fat groove, so post-cast strip needs to be plugged in advance. The existing methods for early closure of post-cast strip are as follows: 1. Brick membrane plugging, which is complex in process and long in construction time, and may cause damage to the waterproof layer during backfilling due to insufficient horizontal compressive strength. 2. Prefabricated reinforced concrete slab plugging: usually, each reinforced concrete slab has a thickness of about 60-80 mm and a slab height of about 800-1000 mm, and a single slab weighs up to 200 kg, which is too heavy for on-site construction and has high operation cost. SUMMARY

[0004] In view of the above prior art, the utility model provides a basement outer wall post-cast strip advanced closure system.

[0005] The basement outer wall post-cast strip advanced closure system provided by the utility model is characterized in that the outer side end of the basement outer wall is provided with a prefabricated sealing plate for plugging the post-cast strip, the prefabricated sealing plate comprises a plurality of prefabricated cover plates, the plurality of prefabricated cover plates are installed in a stacked manner from the bottom to the top of the basement outer wall, the prefabricated cover plate comprises a cement mortar base, a steel reinforcement framework is arranged inside the cement mortar base, steel wire meshes are arranged at the upper end and the lower end of the steel reinforcement framework, and the cement mortar base is connected with the post-cast strip reserved steel bars through a plurality of tie steel wires.

[0006] Preferably, the cement mortar base adopts cement mortar with a ratio of 1:3.

[0007] Preferably, the steel reinforcement framework is a bidirectional steel reinforcement framework arranged in a bidirectional manner at C8@250.

[0008] Preferably, the steel wire mesh is a double-row galvanized steel wire mesh with a wire diameter of A0.9 and a hole grid of 12.7 mm×12.7 mm.

[0009] Preferably, the prefabricated cover plate has a thickness of 40 mm, a height of 600 mm and a length of 1080 mm.

[0010] Preferably, one end of the tie wire is embedded in the cement mortar base, and the other end extends out of the cement mortar base by 15-20 cm.

[0011] Preferably, the outer side of the prefabricated sealing plate is sequentially provided with a waterproof coiled material, a fat groove and a surrounding structure from inside to outside.

[0012] Compared with the prior art, the basement outer wall post-pouring belt advanced sealing system has the advantages that: the prefabricated cover plate has a thickness of 40 mm and a plate height of 600 mm, and is light in weight, so that mechanical hoisting is not needed, and the measure cost is reduced. The prefabricated cover plate is internally provided with a bidirectional steel reinforcement framework and a double-layer steel mesh, so that brittle damage of the cover plate is avoided. The prefabricated cover plate is internally provided with tie wires, which are directly wound at the post-pouring belt reserved steel bars, and actively tie and anchor the post-pouring belt reserved steel bars, so that the operation is convenient, and the construction period is saved. The two ends of the contact side of the prefabricated cover plate are provided in an arc shape, so as to replace the treatment of the radian of the male and female corners of the waterproof coiled material, facilitate smooth transition of the waterproof coiled material, and improve the waterproof construction quality. The prefabricated cover plate can be made of waste old formworks, wooden frames and steel reinforcement leftovers, so that the secondary utilization rate of the on-site materials is improved, and the green construction concept of saving materials is met. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 Fig. 1 is a structural schematic view of a basement outer wall post-pouring belt advanced sealing system in the embodiment of the utility model.

[0014] Figure 2 Fig. 2 is a structural schematic view of a prefabricated cover plate in the embodiment of the utility model.

[0015] Figure 3 Fig. 3 is a cross-sectional schematic view of the prefabricated cover plate in the embodiment of the utility model.

[0016] Figure 4 Fig. 4 is an installation schematic view of the prefabricated cover plate in the embodiment of the utility model.

[0017] In the drawings, 1 is a prefabricated cover plate; 11 is a cement mortar base; 12 is a steel reinforcement framework; 13 is a steel mesh; 14 is a tie wire; 2 is a post-pouring belt; 3 is a basement outer wall; 4 is a post-pouring belt reserved steel bar; 5 is a waterproof coiled material; 6 is a fat groove; and 7 is a surrounding structure. DETAILED DESCRIPTION

[0018] In order to make the technical means, creative features, purposes and effects achieved by the utility model easy to understand, the utility model is further described below in combination with specific embodiments.

[0019] Embodiment: as Figures 1-4As shown, a basement outer wall post-cast strip advanced closing system, the outer side end of the basement outer wall 3 is provided with a prefabricated closing plate for plugging the post-cast strip 2, the prefabricated closing plate comprises a plurality of prefabricated cover plates 1, the plurality of prefabricated cover plates 1 are stacked and installed from the bottom to the top of the basement outer wall 3, the prefabricated cover plate 1 has a thickness of 40 mm, a height of 600 mm and a length of 1080 mm, the prefabricated cover plate 1 comprises a cement mortar base 11, the cement mortar base 11 adopts cement mortar with a ratio of 1:3, the cement mortar base 11 is internally provided with a steel reinforcement cage 12, the steel reinforcement cage 12 is a bidirectional steel reinforcement cage arranged in a C8@250 bidirectional mode and is spliced by spot welding of waste short reinforcement, the upper end and the lower end of the steel reinforcement cage 12 are provided with steel wire meshes 13, the steel wire meshes 13 are double-row galvanized steel wire meshes with a wire diameter of A0.9 and a hole grid of 12.7 mm*12.7 mm, the steel wire meshes 13 are bent at the end heads and are fastened together with the steel reinforcement cage 12 by iron wires, each prefabricated cover plate 1 is connected with post-cast strip reserved reinforcement 4 by four tie-in steel wires 14, one end of the tie-in steel wire 14 is embedded in the cement mortar base 11 and the other end extends out of the cement mortar base 16 cm, is 100 mm away from the top and the bottom of the plate and is 250 mm away from the left and right ends of the plate.

[0020] Further, the outer side end of the prefabricated closing plate is sequentially provided with a waterproof coiled material 5, a fat groove 6 and a surrounding structure 7 from inside to outside. The contact sides of the prefabricated cover plate 1 and the waterproof coiled material 5 are both provided with a circular arc shape, instead of the treatment of the radian at the male and female corners of the waterproof coiled material, which is conducive to the smooth transition of the waterproof coiled material and improves the waterproof construction quality.

[0021] The installation process of the basement outer wall post-cast strip advanced closing system comprises the following steps:

[0022] Step one: according to the height of the basement outer wall 3, the prefabricated cover plate 1 is arranged;

[0023] Step two: according to the design requirements, the prefabricated cover plate 1 is batch-produced and the surface is subjected to pressure grouting treatment;

[0024] Step three: the tie-in steel wire 14 of the prefabricated cover plate 1 is bound and fixed with the post-cast strip reserved reinforcement 4;

[0025] Step four: the gap between the prefabricated cover plate 1 and the basement outer wall 3 and the gap between the adjacent two prefabricated cover plates 1 are densely grouted with cement mortar and are subjected to waterproof treatment;

[0026] Step five: the waterproof coiled material 5 is pasted on the outer side of the prefabricated cover plate 1.

[0027] The above is only an embodiment of the present application and does not limit the patent range of the present application, and any equivalent scheme made by using the content of the present application specification, directly or indirectly used in other related technical fields, is also within the patent protection range of the present application.

Claims

1. A basement exterior wall post-cast strip advanced sealing system, characterized in that, The outer side end of the basement outer wall is provided with a prefabricated sealing plate for sealing the post-poured belt, the prefabricated sealing plate comprises a plurality of prefabricated cover plates which are stacked from the bottom to the top of the basement outer wall, the prefabricated cover plate comprises a cement mortar base, the inside of the cement mortar base is provided with a steel reinforcement cage, the upper end and the lower end of the steel reinforcement cage are provided with a steel mesh, and the cement mortar base is connected with the post-poured belt reserved steel bars through a plurality of tie steel wires.

2. The basement exterior wall post-cast strip advanced sealing system according to claim 1, wherein, The cement mortar base adopts 1:3 cement mortar.

3. The basement exterior wall post-cast strip advanced sealing system according to claim 1 or 2, characterized in that, The steel reinforcement cage is a bidirectional steel reinforcement cage arranged in C8@250 bidirectional mode.

4. The basement exterior wall post-cast strip advanced sealing system according to claim 1 or 2, characterized in that, The steel mesh is a double-row galvanized steel mesh with a wire diameter of A0.9 and a hole grid of 12.7mm*12.7mm.

5. The basement exterior wall post-cast strip advanced sealing system according to claim 1 or 2, characterized in that, The thickness of the prefabricated cover plate is 40mm, the height is 600mm, and the length is 1080mm.

6. The basement exterior wall post-cast strip advanced sealing system according to claim 1 or 2, characterized in that, One end of the tie steel wire is embedded in the cement mortar base, and the other end extends out of the cement mortar base by 15-20cm.

7. The basement exterior wall post-cast strip advanced sealing system according to claim 1 or 2, characterized in that, The outer side end of the prefabricated sealing plate is sequentially provided with a waterproof coiled material, a fat groove and an enclosure structure from inside to outside.

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