CN111074950A - Pre-closed advanced water stop post-cast strip for basement outer wall and construction method - Google Patents
Pre-closed advanced water stop post-cast strip for basement outer wall and construction method Download PDFInfo
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- CN111074950A CN111074950A CN201911406848.3A CN201911406848A CN111074950A CN 111074950 A CN111074950 A CN 111074950A CN 201911406848 A CN201911406848 A CN 201911406848A CN 111074950 A CN111074950 A CN 111074950A
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/16—Arrangement or construction of joints in foundation structures
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
- E02D15/02—Handling of bulk concrete specially for foundation or hydraulic engineering purposes
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
- E02D31/02—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against ground humidity or ground water
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Abstract
The invention provides a pre-closed advanced water stop post-cast strip for an outer wall of a basement and a construction method, which mainly comprises the following construction steps: (1) the method comprises the following steps of (1) processing and installing a reinforced bar net rack, (2) installing a grout discharging component, (3) pouring concrete on an outer wall of a basement, (4) discharging grout in a side mould of a post-cast strip, (5) installing an assembled prestressed precast slab, (6) grouting and tensioning, (7) installing a hanging construction frame and a stand column, (8) constructing a waterproof coiled material, (9) constructing waterproof mortar, (10) dismantling the hanging construction frame and the stand column, and (11) constructing the rest post-cast strips in the same way. The invention can effectively reduce the engineering cost, can realize the construction by a centralized prefabrication and field assembly method, accelerates the construction speed, and can obtain better technical and economic benefits when being applied to the actual engineering.
Description
Technical Field
The invention relates to the field of constructional engineering, is suitable for the construction of a post-cast strip of an outer wall of a basement with a cast-in-place reinforced concrete structure, and particularly relates to a pre-closed advanced water stop post-cast strip of the outer wall of the basement and a construction method thereof.
Background
At present, with the rapid development of the building industry in China, particularly the diversification of the building style, the load and settlement of the building structure are uneven, so that the building needs to adopt post-pouring to bring the balance of the internal force of the stable structure. The post-cast strip is usually treated by adopting a mode of brick protection wall and internally sticking waterproof coiled materials or externally smearing waterproof mortar, concrete pouring in the post-cast strip is carried out after the settlement or contraction function of the building is basically stable, the waiting time is usually long, and the difficulty is brought to subsequent construction and subsequent cleaning and pouring work. In addition, the waterproof quality problem caused by the cracking of the waterproof pull or the brick protection wall is easily caused by factors such as later-stage backfill soil settlement and the like.
Disclosure of Invention
The invention aims to provide a pre-closed advanced water-stop post-cast strip for a basement outer wall of a cast-in-place reinforced concrete structure in construction engineering and a construction method thereof, which meet the requirements of structural construction. The problem of wall body fracture or waterproof that draws can effectively be solved, the waterproof quality problem of outer wall post-cast strip department has been improved. The assembled prestressed prefabricated slab is subjected to centralized processing, field assembly and rapid construction, and has strong operability and practicability.
The technical scheme provides a construction method for pre-sealing an advanced water stop post-cast strip of an outer wall of a basement, which comprises the following main construction steps:
1) and (2) processing and installing a steel bar net rack (19): the steel bar net rack (19) is formed by welding steel bars, the steel bar net racks (19) on two sides are connected with the connecting steel plates (22), and the steel bar net rack (19) is adjusted to a design position;
2) and (3) mounting a slurry discharging component: the steel bottom plate (26) is arranged at the lower part of the steel bar net rack (19) and is positioned at the upper part of the connecting steel plate (22); an outer side baffle (23) and an inner side baffle (57) are respectively arranged on two sides of the steel bottom plate (26), the inner side baffle (57) is arranged on the inner side surface of the basement outer wall (5), the inner side baffle (57) is provided with a slurry discharge notch (30), the outer end of the slurry discharge notch (30) is provided with an inclined slurry guide plate (24), and the inner side of the inner side baffle (57) is provided with a push-pull slurry scraping plate (29);
3) pouring concrete on the basement outer wall (5): the basement outer wall (5) is subjected to concrete pouring and maintenance in the steel bar net rack (19); the top of the basement outer wall (5) adjacent to the basement outer wall post-cast strip (1) is provided with embedded steel bars (33);
4) and (3) discharging slurry in the post-cast strip side mold: the dense meshes (20) on the two sides are fixed on a steel bar net rack (19), when concrete is poured on the basement outer wall (5), the concrete permeating on the dense meshes (20) flows onto a steel bottom plate (26), a push-pull type slurry scraping plate (29) is pulled to enable the concrete to flow into the inclined slurry guiding plate (24) through a slurry discharge notch (30), the concrete is recovered, and thick concrete on the dense meshes (20) is scraped manually through a manual slurry scraping plate (58) to enable the concrete to flow onto the steel bottom plate (26);
5) the assembly type prestressed precast slab (4) is installed:
the lower base plate (15) of the assembled prestressed precast slab is provided with a lower base plate anchoring groove (18), an anchoring steel plate (16) is arranged in the lower base plate anchoring groove (18), and the assembled prestressed precast slab (4) is symmetrically provided with prestressed rib arrangement holes (13); the anchoring steel plate (16) on the lower bottom plate (15) of the prefabricated pre-stressed prefabricated plate is arranged at the bottom after being installed, the prefabricated pre-stressed prefabricated plate (4) is installed from bottom to top, the pre-stressed connecting rib (2) penetrates through the pre-stressed rib installing hole (13) to be fixedly connected with the anchoring steel plate (16), and the connecting prefabricated pre-stressed prefabricated plate (4) is fixedly connected with the basement outer wall (5);
6) grouting and tensioning: grouting the stress bar arrangement holes (13), and tensioning and fixing the prestressed connecting bars (2);
7) the suspension scaffold (43) and the upright column (44) are installed: the hanging scaffold (43) and the movable steel guard plate (35) are hung on the embedded steel bar (33) on the basement outer wall (5), and the movable steel guard plate (35) is arranged below the hanging scaffold (43); the lower part of a suspension construction frame (43) is connected with an upright post (44), a sliding steel plate (34) with a shaft is slidably arranged on the upright post (44), a steel wire rope reel (39) and a winch (40) are respectively arranged on lower steel plates (54) of the upright posts (44) at two sides, steel wire ropes on the steel wire rope reel (39) and the winch (40) penetrate through a hoisting ring (36) to be connected with the sliding steel plate (34) with the shaft, and the steel wire rope reel (39) is connected with the winch (40) through a connecting shaft to synchronously pull the steel wire rope (38);
8) construction of waterproof rolls: a movable coiled material hanging rod (42) and a scraping plate (41) are arranged between the mutually sliding steel plates (34) with the shafts, the waterproof coiled material (10) is arranged on the coiled material hanging rod (42), and the coiled material hanging rod (42) is in bolt connection with the sliding steel plates (34) with the shafts; a winch (40) pulls a steel wire rope (38), the steel wire rope (38) pulls a sliding steel plate (34) with a shaft through a hanging ring (36), and then the waterproof coiled material (10) is paved, and the waterproof coiled material (10) is scraped by a scraping plate (41);
9) and (3) waterproof mortar construction: after the construction of the waterproof coiled material (10) is completed, a coiled material hanging rod (42) is detached, a waterproof mortar groove (46) is installed on an upright post (44), the distance between a scraping and paving steel plate (50) below the waterproof mortar groove (46) and the assembled pre-stressed precast slab (4) is adjusted through an adjustable screw (48) to achieve the paving thickness of the waterproof mortar, the waterproof mortar is poured into the waterproof mortar groove (46), a winch (40) pulls a steel wire rope (38) to pave, and the steel wire rope is scraped by a scraping plate (41);
10) dismantling the hanging scaffold (43) and the upright post (44): sequentially dismantling the balancing weight, the upright post and the hanging scaffold;
11) and constructing other post-cast strips in the same way as above: and (5) repeating the construction steps, and performing post-cast strip construction (1) on the other basement outer walls.
According to another aspect of the invention, a pre-closed advanced water stop post-cast strip for the outer wall of the basement is provided, and is obtained by the construction method on the pre-closed advanced water stop post-cast strip.
Compared with the prior art, the technical scheme has the following characteristics and advantages:
(1) when the height of the thin plate tire membrane is large, the basement outer wall is adopted to pre-seal the advanced water stop post-pouring belt, centralized processing and customization can be carried out in a factory, assembly and construction are carried out on the spot, convenience and rapidness are achieved, and the construction speed is accelerated.
(2) The prefabricated ring beam of high-strength reinforced concrete is arranged at the horizontal splicing position of the sheet moulding bed, the upper sheet and the lower sheet are reserved with connecting steel bars and are connected by the straight thread sleeves, the through hole of the connecting steel bars and the hanging tool hole of the straight thread sleeve are reserved on the prefabricated ring beam, the tool hole is not communicated, later-stage mortar is blocked, the temporary placement frame and the inner and outer support combination are temporarily fixed in the installation process, the bearing capacity and the stability of the whole system are improved, and the construction period can be shortened.
(3) The basement outer wall pre-closed advanced water stop post-pouring belt is adopted, the construction method of the thin plate moulding bed is optimized, the construction speed is accelerated, and the basement outer wall pre-closed advanced water stop post-pouring belt has obvious economic and technical benefits.
Drawings
FIG. 1 is a schematic elevation view of a pre-closed leading water-stop post-cast strip of an outer wall of a basement;
FIG. 2 is a schematic cross-sectional view of a pre-closed advanced water-stop post-cast strip of an outer wall of a basement;
FIG. 3 is a schematic view of the upper connection structure of the prefabricated panels;
FIG. 4 is a schematic view of a lower connection structure of the prefabricated panels;
FIG. 5 is a schematic view of a lower connecting structure of a lower bottom plate of the prefabricated plate;
FIG. 6 is a schematic view of the vertical surface of a post-cast strip of basement exterior wall with a pull-up composite side form;
FIG. 7 is a schematic view of a large sample of the connecting steel plate;
FIG. 8 is a schematic view of a basement exterior wall waterproof layer construction device;
FIG. 9 is a schematic view of a large scale of a waterproof mortar tank;
FIG. 10 is a schematic view of a cross-section of a waterproof mortar tank;
FIG. 11 is a schematic view of a column in a larger scale;
FIG. 12 is a schematic view of a hand-operated squeegee;
FIG. 13 is a flow chart of the construction process of the present invention.
In the figure: 1-basement exterior wall post-cast strip, 2-prestressed connecting bar, 3-upper closed groove, 4-fabricated prestressed precast slab, 5-basement exterior wall, 6-connecting bar, 7-horizontal steel bar, 8-vertical steel bar, 9-water-stop steel plate, 10-waterproof coiled material, 11-connecting bar fixed end, 12-waterproof mortar oblique angle, 13-stress bar placement hole, 14-lower closed convex rib, 15-fabricated prestressed precast slab lower base plate, 16-anchoring steel plate, 17-anchoring bolt, 18-lower base plate anchoring groove, 19-steel bar net rack, 20-dense mesh net, 21-fastening bolt, 22-connecting steel plate, 23-outer side baffle plate, 24-inclined slurry guide plate, 25-ear plate, 26-steel base plate, 27-preformed hole, 28-fixed bolt, 29-push-pull type prize scraping plate, 30-slurry discharging notch, 31-adjusting bolt hole, 32-counterweight block, 33-embedded steel bar, 34-sliding steel plate with shaft, 35-movable steel guard plate, 36-lifting ring, 37-sliding rail, 38-steel wire rope, 39-steel wire rope reel, 40-winch, 41-scraping plate, 42-coiled material hanging rod, 43-hanging scaffold, 44-upright post, 45-fixed screw, 46-waterproof mortar groove, 47-waterproof mortar groove ear plate, 48-adjustable screw, 49-movable shaft, 50-scraping steel plate, 51-slurry leaking pipe, 52-upright post upper steel plate, 53-steel pipe, 54-upright post lower steel plate, 55-round steel pipe, 56 thin steel plate, 57 inner side baffle, 58 manual pulp scraping plate and 59 connecting shaft.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments that can be derived by one of ordinary skill in the art from the embodiments given herein are intended to be within the scope of the present invention.
It will be understood by those skilled in the art that in the present disclosure, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for ease of description and simplicity of description, and do not indicate or imply that the referenced devices or components must be constructed and operated in a particular orientation and thus are not to be considered limiting.
The construction technical requirements of component prefabrication, embedded part processing and embedding, component hoisting, foundation pit excavation, concrete pouring and the like in the embodiment of the invention are not repeated, and the embodiment of the basement outer wall pre-sealing advanced water stop post-cast strip construction related to the invention is mainly explained. The present invention will be described in further detail by way of examples with reference to the accompanying drawings, which are not intended to limit the invention to the examples.
Fig. 1 is a schematic elevation view of a pre-closed advanced water-stop post-cast strip of an outer wall of a basement, fig. 2 is a schematic cross-sectional view of the pre-closed advanced water-stop post-cast strip of the outer wall of the basement, fig. 3 is a schematic elevation view of an upper connection structure of an assembled pre-stressed precast slab, fig. 4 is a schematic elevation view of a lower connection structure of the assembled pre-stressed precast slab, fig. 5 is a schematic elevation view of a lower connection structure of a lower base plate of the assembled pre-stressed precast slab, fig. 6 is a schematic elevation view of a top-pull composite side form of the post-cast strip of the outer wall of the basement, fig. 7 is a schematic elevation view of a connection steel plate, fig. 8 is a schematic diagram of a waterproof layer construction device of the outer wall of the basement, fig. 9 is a schematic elevation view of a waterproof mortar groove, fig. 10 is a.
The invention provides a construction method of a pre-closed advanced water stop post-cast strip of an outer wall of a basement, which mainly comprises the following construction steps:
1) and (2) processing and installing a steel bar net rack (19): the steel bar net rack (19) is formed by welding steel bars, the steel bar net racks (19) on two sides are connected with the connecting steel plates (22), and the steel bar net rack (19) is adjusted to a design position; specifically, the connecting device is fixedly connected through a fastening bolt (19); the connecting steel plate (22) is provided with an adjustable bolt hole, and the reinforcing steel bar net rack (19) is adjusted by adjusting the position of the fastening bolt (19) so that the reinforcing steel bar net rack (19) reaches a design position;
2) and (3) mounting a slurry discharging component: the steel bottom plate (26) is arranged at the lower part of the steel bar net rack (19) and is positioned at the upper part of the connecting steel plate (22); an outer side baffle (23) and an inner side baffle (57) are respectively arranged on two sides of the steel bottom plate (26), the inner side baffle (57) is arranged on the inner side surface of the basement outer wall (5), the inner side baffle (57) is provided with a slurry discharge notch (30), the outer end of the slurry discharge notch (30) is provided with an inclined slurry guide plate (24), and the inner side of the inner side baffle (57) is provided with a push-pull slurry scraping plate (29);
3) pouring concrete on the basement outer wall (5): the basement outer wall (5) is subjected to concrete pouring and maintenance in the steel bar net rack (19) in a traditional mode; the top of the basement outer wall (5) adjacent to the basement outer wall post-cast strip (1) is provided with embedded steel bars (33);
4) and (3) discharging slurry in the post-cast strip side mold: the dense meshes (20) on the two sides are fixed on a steel bar net rack (19), when concrete is poured on the basement outer wall (5), the concrete permeating on the dense meshes (20) flows onto a steel bottom plate (26), and a push-pull type slurry scraping plate (29) is pulled to enable the concrete to flow into an inclined slurry guiding plate (24) through a slurry discharge notch (30) for recycling; the thick concrete on the dense mesh net (20) is scraped manually by using a manual slurry scraping plate (58) to flow the concrete onto the steel bottom plate (26); the manual pulp scraping plate (58) consists of a round steel pipe (55) and a thin steel plate (56);
5) the assembly type prestressed precast slab (4) is installed:
the assembled prestressed precast slab (4) consists of an upper closed groove (3), a lower closed convex rib (14), a stress tendon placing hole (13) and a connecting tendon fixing end (11); the lower base plate (15) of the assembled prestressed precast slab is provided with a lower base plate anchoring groove (18), an anchoring steel plate (16) can be installed in the lower base plate anchoring groove (18), the assembled prestressed precast slab (4) is symmetrically provided with prestressed rib arrangement holes (13), and the prestressed rib arrangement holes are all prefabricated and processed in a factory; the anchoring steel plate (16) on the lower bottom plate (15) of the prefabricated assembled panel is arranged at the bottom after installation, the prestressed connecting rib (2) penetrates through the prestressed rib arranging hole (13) to be fixedly connected with the anchoring steel plate (16), specifically, the prefabricated assembled panel (4) is connected through the anchoring bolt, and the prefabricated assembled panel (4) is fixedly connected with the outer wall (5) of the basement; the assembled prestressed prefabricated slab (4) is coupled and connected through the upper closed groove (3) and the lower closed convex rib (14) and is sequentially installed from bottom to top; the inner side surface of the assembled prestressed precast slab (4) is embedded with a connecting bar fixing end (11) which is fixed on an outer wall main bar through a tie bar (6);
6) grouting and tensioning: grouting the stress bar arrangement holes (13), and tensioning and fixing the prestressed connecting bars (2);
7) the suspension scaffold (43) and the upright column (44) are installed: the hanging scaffold (43) is formed by welding reinforcing steel bars, the hanging scaffold (43) and the movable steel guard plate (35) are hung on the embedded reinforcing steel bars (33) on the basement outer wall (5), and the movable steel guard plate (35) is arranged below the hanging scaffold (43); the lower part of the suspension scaffold (43) is connected with the upright post (44) through a bolt; the belt shaft sliding steel plate (34) is slidably arranged on the upright posts (44), the steel wire rope reel (39) and the winch (40) are respectively arranged on the upright post lower steel plates (54) of the upright posts (44) on two sides, the steel wire ropes on the steel wire rope reel (39) and the winch (40) penetrate through the hoisting rings (36) to be connected with the belt shaft sliding steel plate (34), and the steel wire rope reel (39) is connected with the winch (40) through the connecting shaft to synchronously pull the steel wire rope (38); the lower part of the lower steel plate (54) of the upright post is provided with a balancing weight (32);
8) construction of waterproof rolls: a movable coiled material hanging rod (42) and a scraping plate (41) are arranged between the mutually sliding steel plates (34) with the shafts, the waterproof coiled material (10) is arranged on the coiled material hanging rod (42), and the coiled material hanging rod (42) is in bolt connection with the sliding steel plates (34) with the shafts; a winch (40) pulls a steel wire rope (38), the steel wire rope (38) pulls a sliding steel plate (34) with a shaft through a hanging ring (36), and then the waterproof coiled material (10) is paved, and the waterproof coiled material (10) is scraped by a scraping plate (41);
9) and (3) waterproof mortar construction: after the construction of the waterproof coiled material (10) is completed, a coiled material hanging rod (42) is detached, a waterproof mortar groove (46) is installed on an upright post (44), the distance between a scraping and paving steel plate (50) below the waterproof mortar groove (46) and the assembled pre-stressed precast slab (4) is adjusted through an adjustable screw (48) to achieve the paving thickness of the waterproof mortar, the waterproof mortar is poured into the waterproof mortar groove (46), a winch (40) pulls a steel wire rope (38) to pave, and the steel wire rope is scraped by a scraping plate (41); the waterproof mortar groove (46) consists of a fixed screw (45), a waterproof mortar groove (46), a waterproof mortar groove lug plate (47), an adjustable screw (48), a movable shaft (49), a scraping and paving steel plate (50) and a mortar leaking pipe (51); one side of the adjustable screw rod (48) is connected with the scraping and paving steel plate (50), the other side of the adjustable screw rod is connected with the ear plate (47) of the waterproof mortar groove, and the distance between the scraping and paving steel plate (50) and the assembled prestressed precast slab (4), namely the paving thickness of the waterproof mortar, is adjusted through the adjustable screw rod (48);
10) dismantling the hanging scaffold (43) and the upright post (44): sequentially dismantling a balancing weight, an upright post, a hanging scaffold and the like;
11) and constructing other post-cast strips in the same way as above: and (5) repeating the construction steps, and performing post-cast strip construction (1) on the other basement outer walls.
The pre-closed advanced water stop post-cast strip for the basement outer wall shown in figures 1-13 is characterized by comprising a post-cast strip (1) for the basement outer wall, a pre-stressed connecting rib (2), an upper closed groove (3), an assembled pre-stressed prefabricated slab (4) with the size of 1200mm multiplied by 1000mm multiplied by 100mm, the basement outer wall (5), a round steel with the diameter of 10mm for the connecting rib (6), a horizontal reinforcing steel bar (7), a vertical reinforcing steel bar (8), a water stop steel plate (9) with the diameter of 4mm multiplied by 400mm, a waterproof coiled material (10), a connecting rib fixing end (11), a waterproof mortar oblique angle (12), a stress rib containing hole (13), a lower closed convex rib (14), a lower bottom plate (15) for the assembled pre-stressed prefabricated slab, an anchoring steel plate (16), an anchoring bolt (17), a lower bottom plate anchoring groove (18), a reinforcing steel bar net rack (19), a dense net (20) with the mesh size of 16, connecting steel plates (22), outer side baffles (23), oblique slurry guide plates (24), ear plates (25), a steel bottom plate (26), a preformed hole (27), a fixing bolt (28), a push-pull type prize scraping plate (29), a slurry discharge notch (30), an adjustable bolt hole (31), a balancing weight (32), a pre-buried steel bar (33) with the diameter of 40mm, a sliding steel plate with a shaft (34), a movable steel guard plate (35), a lifting ring (36), a sliding rail (37), a steel wire rope (38), a steel wire rope reel (39), a winch (40), a scraping plate (41), a coiled material hanging rod (42) with the diameter of 40mm, a hanging construction frame (43), a stand column (44), a fixing screw rod (45), a waterproof mortar groove (46), a waterproof mortar groove ear plate (47), an adjustable screw rod (48), a movable shaft (49), a scraping steel plate (50), a slurry leakage pipe (51) with the diameter of 20mm, and a steel, the steel pipe (53), the lower steel plate (54) of the upright post, the round steel pipe (55), the thin steel plate (56), the inner side baffle (57), the manual pulp scraping plate (58) and the connecting shaft (59). The basement outer wall post-cast strip (1) is pushed and pulled to form a combined side form, a dense mesh net (20) is fixed to a steel bar net rack (19), the steel bar net rack (19) is connected through a connecting steel plate (22), a steel bottom plate (26) is placed on the lower portion of the steel bar net rack (19), an inner side baffle (57) placed on the steel bottom plate (26) is provided with a slurry discharge notch (30), the outer end of the slurry discharge notch (30) is provided with an inclined slurry guide plate (24), and the basement outer walls (5) on two sides of the post-cast strip are uniformly and symmetrically cast with concrete; pre-closing an advanced water stop post-pouring belt on the outer wall of the basement, sequentially installing the assembled prestressed precast slabs (4) from bottom to top after installing and fixing the lower bottom plate (15) of the assembled prestressed precast slabs, grouting a stress bar arrangement hole (13), and tensioning a prestressed connecting bar (2); basement outer wall (5) waterproof layer construction equipment, set up and hang and be fixed in hanging scaffold (43) at basement outer wall (5) top, set up stand (44) on hanging scaffold (43), set up movable coiled material peg (42) and scrape flat board (41) on band spool sliding steel plate (34), waterproof mortar scrapes the shop fast through waterproof mortar groove (46), waterproof mortar groove (46) are fixed in on band spool sliding steel plate (34), pull up wire rope (38) through hoist engine (40), carry out the waterproof layer construction.
The steel bar net rack (19) is formed by welding steel bars, the steel bar net racks (19) on two sides are fixedly connected with the connecting steel plates (22) through fastening bolts (21), adjusting bolt holes (31) are formed in the connecting steel plates (22), the fastening bolts (21) penetrate through the adjusting bolt holes (31) to be connected with the fixedly connected steel plates (22) and the steel bar net rack (19), and the space between the steel bar net racks (19) is adjusted by adjusting the positions of the fastening bolts (19), so that the steel bar net rack (19) reaches the designed position; when the reinforcing steel bar net rack (19) is dismantled, the connecting steel plate (22) is firstly dismantled, and then the reinforcing steel bar net rack (19) is dismantled.
The steel bottom plate (26) is arranged on the upper part of the connecting steel plate (22); the outer side baffle (23) and the inner side baffle (57) are respectively arranged on two sides of the steel bottom plate (26), and the inner side baffle (57) is arranged on the inner side surface of the basement outer wall (5); the inner side baffle (57) is provided with a pulp discharge notch (30), the outer end of the pulp discharge notch (30) is provided with an inclined pulp guide plate (24), and the inner side of the inner side baffle (57) is provided with a push-pull pulp scraping plate (29).
The steel bottom plate (26) is provided with a preformed hole (27), the push-pull type pulp scraping plate (29) penetrates through the preformed hole (27), and in addition, the steel bottom plate (26) is fixed on the connecting steel plate (22) through a fixing bolt (28) and an ear plate (25).
When concrete is poured on the basement outer wall (5), the concrete permeating on the dense mesh net (20) flows onto the steel bottom plate (26), and the push-pull type slurry scraping plate (29) is pulled to enable the concrete to flow into the inclined slurry guiding plate (24) through the slurry discharging notch (30) for recycling; the thick concrete on the dense mesh net (20) is scraped manually by using a manual slurry scraping plate (58) to make the concrete flow onto the steel bottom plate (26); the manual scraping plate (58) consists of a round steel pipe (55) and a thin steel plate (56), wherein one end of the round steel pipe (55) is connected with the thin steel plate (56).
The assembled prestressed precast slab (4) consists of an upper closed groove (3), a lower closed convex rib (14), a stress tendon placing hole (13) and a connecting tendon fixing end (11), wherein, one side of assembled prestressing force prefabricated plate (4) is arranged in to last closed groove (3) and inwards sunken, the opposite side of assembled prestressing force prefabricated plate (4) is arranged in and outwards is protruding down to closed fin (14), last closed groove (3) and the lower adaptation of closed fin (14) of two close assembled prestressing force prefabricated plate (4) mutually, be equipped with stress bar mounting hole (13) on last closed groove (3) and lower closed fin (14), stress bar mounting hole (13) run through assembled prestressing force prefabricated plate (4), pre-buried connecting rib stiff end (11) of assembled prestressing force prefabricated plate (4) medial surface, through lacing wire (6) with be fixed in basement outer wall (5) main muscle.
The lower base plate (15) of the prefabricated prestressed precast slab is provided with a lower base plate anchoring groove (18), an anchoring steel plate (16) is arranged in the lower base plate anchoring groove (18), and the anchoring steel plate (16) is prefabricated and processed in a factory.
Prestressed tendon placing holes (13) are symmetrically arranged on the assembled prestressed precast slab (4) and the assembled prestressed precast slab lower bottom plate (15); after the anchoring steel plate (16) on the lower bottom plate (15) of the assembled prestressed precast slab is installed, the prestressed connecting rib (2) penetrates through the prestressed rib installation hole (13) and is fixedly connected with the anchoring steel plate (16) through an anchoring bolt; the assembled prestressed prefabricated slab (4) is coupled and connected through the upper closed groove (3) and the lower closed convex rib (14) and is sequentially installed from bottom to top; the inner side surface of the assembled prestressed precast slab (4) is embedded with a connecting bar fixing end (11) which is fixed on an outer wall main bar through a tie bar (6).
The suspension construction frame (43) is suspended and fixed at the top of the basement outer wall (5), the suspension construction frame (43) is provided with a stand column (44), and the stand column (44) is perpendicular to the basement outer wall (5).
When the waterproof coiled material (10) is laid, the sliding steel plates (34) with shafts can be slidably arranged on the stand columns (44), the movable coiled material hanging rods (42) and the scraping plates (41) are arranged between the sliding steel plates (34) with shafts, the movable coiled material hanging rods (42) are arranged above the scraping plates (41), the waterproof coiled material (10) is arranged on the coiled material hanging rods (42), and the coiled material hanging rods (42) are in bolt connection with the sliding steel plates (34) with shafts; after the coiled material hanging rod (42) is removed, a waterproof mortar groove (46) is installed on the upright post (44), the waterproof mortar groove (46) is fixed on the sliding steel plate (34) with the shaft, waterproof mortar is quickly scraped and paved through the waterproof mortar groove (46), the winch (40) is arranged at the bottom of the upright post (44), and the steel wire rope (38) in the upright post (44) is pulled up through the winch (40) to control the sliding of the sliding steel plate (34) with the shaft.
Wherein the diameter of the embedded steel bar (33) is 40mm, the diameter of the coiled material hanging rod (42) is 40mm, and the diameter of the slurry leakage pipe (51) is 20 mm.
The hanging scaffold (43) is formed by welding reinforcing steel bars, the hanging scaffold (43) and the movable steel guard plate (35) are hung on the embedded reinforcing steel bars (33) on the basement outer wall (5), and the movable steel guard plate (35) is arranged below the hanging scaffold (43); the lower part of the suspension scaffold (43) is connected with the upright post (44) through a bolt.
Specifically, pre-buried embedded steel bar (33) has on basement outer wall (5) top, and activity steel backplate (35) are hung and are put on pre-buried steel bar (33), and activity steel backplate (35) are L word form, hang scaffold (43) and hang and put on activity steel backplate (35).
The upright post (44) is composed of a lifting ring (36), a sliding rail (37), an upright post upper steel plate (52), a steel pipe (53) and an upright post lower steel plate (54), the upright post upper steel plate (52) is arranged on the top side of the steel pipe (53), the upright post lower steel plate (54) is arranged on the bottom side of the steel pipe (53), one end of the lifting ring (36) is hung on the upright post upper steel plate (52), and the sliding rail (37) is arranged on two sides of the steel pipe (53).
The steel wire rope reel (39) and the winch (40) are respectively arranged on the lower vertical column steel plates (54) on two sides, a steel wire rope (38) on the steel wire rope reel (39) and the winch (40) penetrates through the hanging ring (36) to be connected with the belt shaft sliding steel plate (34), the steel wire rope reel (39) is connected with the winch (40) through the connecting shaft (59), the steel wire rope (38) is synchronously pulled, and the lower portion of the lower vertical column steel plate (54) is provided with the balancing weight (32).
The waterproof mortar groove (46) consists of a fixed screw (45), a waterproof mortar groove lug plate (47), an adjustable screw (48), a movable shaft (49), a scraping and paving steel plate (50) and a mortar leaking pipe (51); a slurry leaking pipe (51) is arranged at the bottom side of the waterproof mortar groove (46), and a fixing screw rod (45) is arranged at the side of the waterproof mortar groove (46); the scraping and paving steel plate (50) is movably arranged at the bottom of the waterproof mortar groove (46), and the scraping and paving steel plate (50) is connected with the waterproof mortar groove (46) through a movable shaft (49); one side of the adjustable screw rod (48) is connected with the scraping and paving steel plate (50), the other side of the adjustable screw rod is connected with the ear plate (47) of the waterproof mortar groove, and the distance between the scraping and paving steel plate (50) and the assembled prestressed precast slab (4), namely the paving thickness of the waterproof mortar, is adjusted through the adjustable screw rod (48).
The waterproof mortar groove (46) is connected with a preformed hole of the sliding steel plate (34) with the shaft through a bolt.
The working principle is as follows:
a winch (40) pulls a steel wire rope (38), the steel wire rope (38) pulls a sliding steel plate (34) with a shaft to slide along a sliding rail (37) through a hanging ring (36), and then the waterproof coiled material (10) is paved, and the waterproof coiled material (10) is scraped through a scraping plate (41); after the construction of the waterproof coiled material (10) is completed, a coiled material hanging rod (42) is detached, a waterproof mortar groove (46) is installed on a sliding steel plate (34) with a shaft, the distance between a scraping and paving steel plate (50) and an assembled pre-stressed precast slab (4) is adjusted through an adjustable screw (48), the paving thickness of the designed waterproof mortar is achieved, the waterproof mortar is poured into the waterproof mortar groove (46), a winch (40) pulls a steel wire rope (38) to pave, and the steel wire rope is scraped through a scraping plate (41).
The present invention is not limited to the above-mentioned preferred embodiments, and any other products in various forms can be obtained by anyone in the light of the present invention, but any changes in the shape or structure thereof, which have the same or similar technical solutions as those of the present application, fall within the protection scope of the present invention.
Claims (8)
1. A construction method for pre-sealing an advanced water stop post-cast strip of an outer wall of a basement is characterized by comprising the following construction steps:
1) and (2) processing and installing a steel bar net rack (19): the steel bar net rack (19) is formed by welding steel bars, the steel bar net racks (19) on two sides are connected with the connecting steel plates (22), and the steel bar net rack (19) is adjusted to a design position;
2) and (3) mounting a slurry discharging component: the steel bottom plate (26) is arranged at the lower part of the steel bar net rack (19) and is positioned at the upper part of the connecting steel plate (22); an outer side baffle (23) and an inner side baffle (57) are respectively arranged on two sides of the steel bottom plate (26), the inner side baffle (57) is arranged on the inner side surface of the basement outer wall (5), the inner side baffle (57) is provided with a slurry discharge notch (30), the outer end of the slurry discharge notch (30) is provided with an inclined slurry guide plate (24), and the inner side of the inner side baffle (57) is provided with a push-pull slurry scraping plate (29);
3) pouring concrete on the basement outer wall (5): the basement outer wall (5) is subjected to concrete pouring and maintenance in the steel bar net rack (19); the top of the basement outer wall (5) adjacent to the basement outer wall post-cast strip (1) is provided with embedded steel bars (33);
4) and (3) discharging slurry in the post-cast strip side mold: the dense meshes (20) on the two sides are fixed on a steel bar net rack (19), when concrete is poured on the basement outer wall (5), the concrete permeating on the dense meshes (20) flows onto a steel bottom plate (26), a push-pull type slurry scraping plate (29) is pulled to enable the concrete to flow into the inclined slurry guiding plate (24) through a slurry discharge notch (30), the concrete is recovered, and thick concrete on the dense meshes (20) is scraped manually through a manual slurry scraping plate (58) to enable the concrete to flow onto the steel bottom plate (26);
5) the assembly type prestressed precast slab (4) is installed:
the lower base plate (15) of the assembled prestressed precast slab is provided with a lower base plate anchoring groove (18), an anchoring steel plate (16) is arranged in the lower base plate anchoring groove (18), and the assembled prestressed precast slab (4) is symmetrically provided with prestressed rib arrangement holes (13); the anchoring steel plate (16) on the lower bottom plate (15) of the prefabricated pre-stressed prefabricated plate is arranged at the bottom after being installed, the prefabricated pre-stressed prefabricated plate (4) is installed from bottom to top, the pre-stressed connecting rib (2) penetrates through the pre-stressed rib installing hole (13) to be fixedly connected with the anchoring steel plate (16), and the connecting prefabricated pre-stressed prefabricated plate (4) is fixedly connected with the basement outer wall (5);
6) grouting and tensioning: grouting the stress bar arrangement holes (13), and tensioning and fixing the prestressed connecting bars (2);
7) the suspension scaffold (43) and the upright column (44) are installed: the hanging scaffold (43) and the movable steel guard plate (35) are hung on the embedded steel bar (33) on the basement outer wall (5), and the movable steel guard plate (35) is arranged below the hanging scaffold (43); the lower part of a suspension construction frame (43) is connected with an upright post (44), a sliding steel plate (34) with a shaft is slidably arranged on the upright post (44), a steel wire rope reel (39) and a winch (40) are respectively arranged on lower steel plates (54) of the upright posts (44) at two sides, steel wire ropes on the steel wire rope reel (39) and the winch (40) penetrate through a hoisting ring (36) to be connected with the sliding steel plate (34) with the shaft, and the steel wire rope reel (39) is connected with the winch (40) through a connecting shaft to synchronously pull the steel wire rope (38);
8) construction of waterproof rolls: a movable coiled material hanging rod (42) and a scraping plate (41) are arranged between the mutually sliding steel plates (34) with the shafts, the waterproof coiled material (10) is arranged on the coiled material hanging rod (42), and the coiled material hanging rod (42) is in bolt connection with the sliding steel plates (34) with the shafts; a winch (40) pulls a steel wire rope (38), the steel wire rope (38) pulls a sliding steel plate (34) with a shaft through a hanging ring (36), and then the waterproof coiled material (10) is paved, and the waterproof coiled material (10) is scraped by a scraping plate (41);
9) and (3) waterproof mortar construction: after the construction of the waterproof coiled material (10) is completed, a coiled material hanging rod (42) is detached, a waterproof mortar groove (46) is installed on an upright post (44), the distance between a scraping and paving steel plate (50) below the waterproof mortar groove (46) and the assembled pre-stressed precast slab (4) is adjusted through an adjustable screw (48) to achieve the paving thickness of the waterproof mortar, the waterproof mortar is poured into the waterproof mortar groove (46), a winch (40) pulls a steel wire rope (38) to pave, and the steel wire rope is scraped by a scraping plate (41);
10) dismantling the hanging scaffold (43) and the upright post (44): sequentially dismantling the balancing weight, the upright post and the hanging scaffold;
11) and constructing other post-cast strips in the same way as above: and (5) repeating the construction steps, and performing post-cast strip construction (1) on the other basement outer walls.
2. The construction method of the pre-closed advanced water stop post-cast strip of the basement exterior wall according to claim 1, characterized in that the steel net rack (19) is fixedly connected with the connecting steel plate (22) through a fastening bolt (19); set up regulation formula bolt hole on connecting steel sheet (22), through adjusting fastening bolt (19) position, adjust reinforcing bar rack (19), make reinforcing bar rack (19) reach the design position.
3. The construction method of the pre-closed advanced water stop post-cast strip of the basement exterior wall according to claim 1, characterized in that the manual plaster scraping plate (58) is composed of a round steel pipe (55) and a thin steel plate (56), wherein one end of the round steel pipe (55) is connected with the thin steel plate (56).
4. The construction method of the pre-closed advanced water stop post-cast strip for the basement exterior wall according to claim 1, wherein the assembled pre-stressed prefabricated slab (4) consists of an upper closed groove (3), a lower closed convex rib (14), a stress rib placing hole (13) and a connecting rib fixing end (11), wherein the upper closed groove (3) is arranged at one side of the assembled pre-stressed prefabricated slab (4) and is inwards recessed, the lower closed convex rib (14) is arranged at the other side of the assembled pre-stressed prefabricated slab (4) and is outwards raised, the upper closed groove (3) and the lower closed convex rib (14) of two adjacent assembled pre-stressed prefabricated slabs (4) are mutually matched, the stress rib placing hole (13) is arranged on the upper closed groove (3) and the lower closed convex rib (14), and the stress rib placing hole (13) penetrates through the assembled pre-stressed prefabricated slab (4).
5. The construction method of the pre-closed advanced water-stop post-cast strip for the basement exterior wall according to claim 1, wherein the connecting rib fixing end (11) is pre-embedded in the inner side surface of the fabricated prestressed precast slab (4) and is fixed on the main rib of the basement exterior wall (5) through the tie rib (6).
6. The construction method of the pre-closed advanced water-stop post-cast strip of the basement exterior wall according to claim 1, wherein the waterproof mortar groove (46) consists of a fixed screw rod (45), a waterproof mortar groove lug plate (47), an adjustable screw rod (48), a movable shaft (49), a scraping and paving steel plate (50) and a slurry leakage pipe (51); a slurry leaking pipe (51) is arranged at the bottom side of the waterproof mortar groove (46), a fixing screw rod (45) is arranged at the side of the waterproof mortar groove (46), a scraping and paving steel plate (50) is movably arranged at the bottom of the waterproof mortar groove (46), and the scraping and paving steel plate (50) is connected with the waterproof mortar groove (46) through a movable shaft (49); one side of the adjustable screw rod (48) is connected with the scraping and paving steel plate (50), and the other side is connected with the waterproof mortar groove ear plate (47).
7. The construction method of the pre-closed advanced water stop post-cast strip for the basement exterior wall according to claim 1, wherein the upright post (44) consists of a hanging ring (36), a sliding rail (37), an upright post upper steel plate (52), a steel pipe (53) and an upright post lower steel plate (54), the upright post upper steel plate (52) is arranged on the top side of the steel pipe (53), the upright post lower steel plate (54) is arranged on the bottom side of the steel pipe (53), one end of the hanging ring (36) is hung on the upright post upper steel plate (52), and the sliding rail (37) is arranged on two sides of the steel pipe (53).
8. The pre-closed advanced water-stop post-cast strip for the outer wall of the basement is characterized by being prepared according to the construction method of the pre-closed advanced water-stop post-cast strip for the outer wall of the basement as claimed in any one of claims 1 to 7.
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| CN113445551A (en) * | 2021-07-31 | 2021-09-28 | 中建三局集团有限公司 | Basement outer wall post-cast strip advanced sealing structure and construction method thereof |
| CN114482135A (en) * | 2022-02-21 | 2022-05-13 | 中铁十六局集团城市建设发展有限公司 | Advanced water stop structure of basement exterior wall post-cast strip and construction method |
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Effective date of registration: 20230419 Address after: No. 18 Shanglin Road, Shanghuang Town, Liyang City, Changzhou City, Jiangsu Province, 213300 Patentee after: Zhongzheng Construction Group Co.,Ltd. Address before: Room 1903, unit 3, building 3, Wanda business center, Gongshu District, Hangzhou City, Zhejiang Province 310003 Patentee before: Zhejiang Shirun Jianchuang Technology Development Co.,Ltd. |