CN219060869U - A template support system for subway station concrete placement - Google Patents

Abstract

The utility model belongs to the technical field of subway station formwork supports, and provides a formwork support system for subway station concrete pouring. The utility model discloses a formwork support system for concrete pouring of a subway station, which comprises the following components: the utility model discloses a formwork support system for concrete pouring of a subway station, which is supported between a top plate and a bottom plate and comprises a beam formwork support, an axillary angle formwork support, a center column formwork support and a side wall formwork support, wherein a side wall formwork adopts a combined formwork, and double-spliced channel steel and a tripod are used as main support systems. The utility model has the characteristics of stable support, difficult die expansion, safe and efficient construction and is suitable for the field of subway station template supports.

Description

A template support system for subway station concrete placement

Technical Field

The utility model belongs to the field of subway station formwork supports, and particularly relates to a formwork support system for subway station concrete pouring.

Background

The formwork support is used for fixing and supporting various templates in building construction, under the conditions of longer span and higher height involved in construction, the requirements on stability and supporting rigidity of the formwork support are higher, and in order to strengthen the stability and rigidity of the formwork support, a mode of encrypting the formwork support is generally adopted, so that the number of formwork supports is increased; in the construction of a subway station, as the whole station main body is buried below the ground, a waterproof layer has to be arranged on the outer side of the side wall of the subway station, so that a wall penetrating bolt cannot be used for controlling the side pressure of the template in the process of supporting the template, only a wall template can be arranged on one side, and a single-side supporting device capable of resisting the side pressure of concrete pouring is arranged on the back of the single-side template.

Therefore, the development and design of a safe, stable, efficient and economical formwork support system for concrete pouring of a subway station are the urgent problems in the field.

Disclosure of Invention

Aiming at the defects in the prior art, the utility model provides a formwork support system for concrete pouring of a subway station, which aims to solve the problems of the background art.

The utility model provides a formwork support system for concrete pouring of a subway station, which comprises the following components: the side wall template comprises a combined bracket, a side wall template and a support system frame; the composite bracket comprises: a support of an upturned beam template of the top bottom plate, an axillary angle template support, a middle column template support and a side wall template support; the side wall template is a combined template, and the support system frame comprises at least one double-spliced channel steel and at least one tripod.

Preferably, the wood die plate comprises a bottom plate, wherein the bottom plate is provided with a bottom beam and an axillary angle, the bottom plate is provided with a shaping axillary angle steel die plate and plywood combined and spliced, four square timber channels are respectively arranged on two vertical sides of a wood die plate part, the square timber channels are equally distributed at equal intervals, two double-spliced steel pipes are horizontally arranged at the same time, and two opposite-pull bolts are arranged at the same time. Wherein, the axillary angle adopts a steel template, the main edge adopts square wood, the secondary edge 1 adopts two double-spliced steel pipes, the lower opening of the template is provided with a hook head steel bar, and the pull rod is pre-buried for 2 times; the formworks on two sides of the upper inverted beam of the top plate are made of bamboo plywood, the secondary edges are made of square lumber, the outer edges are horizontally arranged by adopting double-spliced steel pipes, and 2 split bolts are arranged for reinforcement. The concrete at the axillary angle part and the bottom plate concrete are poured together, a wall guiding template is prepared on site according to the drawing size by adopting a hanging mould system, the template is processed into a whole by adopting a special-shaped steel template, the template is fixed by adopting embedded steel bars connected with structural steel bars, the embedded steel bars are screw steels with the diameters of 14, and the longitudinal spacing is 750mm; the template at the upper axillary angle position of the middle plate adopts a bamboo plywood, the main edge of the lower template adopts I-steel, the secondary edge adopts square timber, and the supporting system adopts a 600 (transverse) ×1200 (longitudinal) ×1500 (vertical) disc buckle type full red scaffold for supporting; triangular wooden wedges are longitudinally added under the axillary angle inclined plane template to meet the requirement that the template is fully supported by a keel, and scaffold opposite jacking is adopted at the bottom of the axillary angle to meet the requirement of template stability.

Preferably, the steel plate is a rectangular column template, wherein the rectangular column template adopts a combined steel template, a template panel adopts a thick steel plate, a connecting plate adopts flat steel, and a back rib adopts channel steel; after the template is installed, the periphery of the template is used as a column hoop by a double-spliced groove steel frame, and the column hoop is firmly reinforced at four corners by bolts; the column template supporting system adopts a rope opposite pulling mode, steel wire ropes are respectively arranged at four corners of a column for opposite pulling, the upper ends of the steel wire ropes are arranged on the column hoops, the lower ends of the steel wire ropes are connected with the embedded ground, the verticality of the column is adjusted through elastic bolts, and the template foundation is tightly jacked by ground anchors. The template panel adopts a steel plate with the thickness of 5mm, the connecting plate adopts 10 multiplied by 80 flat steel, the back rib adopts 8# channel steel, and the template section heights are 1.5m, 1m and 0.5m; and a 10# double-groove steel frame is used as a column hoop around after the template is installed.

Preferably, the wall forms are assembled steel forms and supported by triangular steel frames. When the formwork is erected, the footings are leveled by using square timber, wooden wedges, square steel and other support pads, the pre-buried U-shaped steel bars are connected with pins to pull the transverse pressure beam to fix the formwork footings, after the bracket positions are fixed, the bracket trusses are connected together longitudinally by using steel pipes, and the vertical spacing of the steel pipes is the same as the spacing of truss beams.

Preferably, the concrete pouring device further comprises foundation bolts, wherein the foundation bolts are pre-embedded in place before pouring the concrete. In the actual construction process, embedding in the concrete pouring process and embedding in the later stage of the concrete planting process are strictly forbidden, foundation bolts are strictly embedded according to the size and the position of a drawing, the foundation bolts are controlled to be at the same height and on a horizontal line, the embedded part system is stressed maximally in the whole single-side bracket system, if the embedded part system is not reinforced in place, the installation and the supporting quality of the later stage bracket body can be influenced, embedded parts and the plate surface are embedded at an angle of 45 degrees, all parts of the embedded part system are reinforced in place, and the outer connecting rod screw threads are required to protrude out of butterfly nuts by not less than 5 buckles.

Preferably, the combined steel template is formed by combining and splicing at least one steel template. In the actual construction process, the steel formwork is spliced on the ground, an automobile crane or a portal crane is adopted to hoist to a construction position for positioning, the wall formwork is closed, the lower opening of the formwork is flush with a pre-sprung elevation control line, the upper opening of the formwork is temporarily connected with steel bars through an A6.5 steel wire rope and a bayonet, temporary support is carried out by adopting not less than 2 steel pipes, then adjacent formworks are hoisted to be installed, then a steel pipe back edge is installed, the wall formwork is temporarily supported by the steel pipes, a single-side support is hoisted, the single-side support is hoisted to the site from a piling site, the single-side support is slightly placed and lifted when hoisted, a plurality of single-side supports are piled together, the single-side supports are mutually piled on a flat site in order to avoid deformation of the supports, the single-side support assembled by a standard section and a heightening section are assembled in the material piling site in advance, then the formwork is hoisted to a working surface by a crane, after each single-side support is installed with 3-4 single-frame steel pipes, after the support is installed, a piece system is installed, the single-side support is connected with the back edge of the single-side support by using a hook bolt, and the single-side support is tilted to be slightly inclined to the inner side support until the single-side support is slightly inclined to the inner side of the formwork is 5 mm.

According to the technical scheme, the template support system for concrete pouring of the subway station has the beneficial effects that: the beam axillary angle of the upward turning beam of the bottom plate is spliced by adopting a shaping axillary angle steel template and a 15mm plywood, a hook head steel bar is arranged at the lower opening of the template, and 2 pull rods are pre-buried, so that the beam template is more stable and reliable; triangular wooden wedges are longitudinally added under the axillary angle inclined plane template to meet the requirement that the template is fully supported by a keel, and scaffold butting is adopted at the bottom of the axillary angle to meet the requirement of template stability; the column template supporting system adopts a rope opposite-pull type, and the verticality of the column can be adjusted through a tightening bolt; the wall template is linked with the bottom plate through the foundation bolts, so that the template support is more stable and safe.

Drawings

In order to more clearly illustrate the embodiments of the present utility model, the drawings that are used in the description of the embodiments or the prior art will be briefly described below. Throughout the drawings, the elements or portions are not necessarily drawn to actual scale.

FIG. 1 is a schematic view of the installation of a floor upturned beam form of the present utility model;

FIG. 2 is a schematic view of the installation of a roof upturned beam form of the present utility model;

FIG. 3 is a construction drawing of a template at the axillary corner of the base plate of the present utility model;

FIG. 4 is a construction drawing of a form at the corner of the roof of the present utility model;

FIG. 5 is a schematic view of a column template construction of the present utility model;

FIG. 6 is a large sample of the side mold embedded part of the utility model;

FIG. 7 is a side wall template mounting step diagram of the present utility model.

Detailed Description

Embodiments of the technical scheme of the present utility model will be described in detail below with reference to the accompanying drawings. The following examples are only for more clearly illustrating the technical aspects of the present utility model, and thus are merely examples, and are not intended to limit the scope of the present utility model.

An embodiment is substantially as shown in figures 1 to 7:

as shown in the drawings, the embodiment of the present utility model provides a formwork support system for concrete pouring of a subway station, and in this embodiment, the following description is given with reference to a new road station formwork support engineering example of a vinca urban rail transit subway No. 5, and it should be understood that the preferred embodiment described herein is only for illustrating and explaining the present utility model, and is not limited to the present utility model.

The specific embodiment is as follows:

as shown in figure 1, the beam-turning armpit angle on the bottom plate adopts a shaping armpit angle steel template and 15mm plywood combination and splicing, 50X 100mm square timber 4 channels are respectively arranged on two vertical sides of the wood template part, the two square timber 4 channels are arranged at equal intervals, and double splicing is horizontally arranged

The distance between two steel pipes is 500mm, two M14 split bolts are arranged, and the longitudinal distance between the pull rods is 500mm. The armpit angle adopts a steel template, the main edge adopts 85X 85 square wood, the longitudinal spacing is 750mm, and the secondary edge adopts double spelling +.>

Two steel pipes, wherein phi 20 hook head steel bars are arranged at the lower opening of the template, the longitudinal spacing is 750mm, and phi 14 pull rods are pre-buried for 2 times; as shown in FIG. 2, the top plate upturning beam and beam bottom templates adopt 15mm thick bamboo plywood, secondary edges adopt 85X 85mm square lumber, vertical beams are arranged in a cross direction, the distance is 200mm, the main edges adopt 10I-steel, parallel beams are arranged in a cross direction, 3 beam bottoms are arranged at equal intervals, the upper reversing beam two side templates adopt 15mm thick bamboo plywood, secondary edges adopt 50mm X100 mm square lumber and vertical arrangement distance is 200mm, and outer edges adopt double-splicing->

The steel pipes are horizontally arranged at intervals of 500mm. 2M 14 split bolts are arranged for reinforcement, and the horizontal spacing of the split bolts is 500mm.

Considering the influence of shearing force, the horizontal construction joint of the bottom plate is reserved at a position 300mm above the reinforcing axillary angle, concrete at the axillary angle part is poured together with the bottom plate concrete, a 900X 300mm template of the axillary angle of the bottom plate adopts a hanging die system, a guide wall template is prepared on site according to the drawing size, a 3mm thick special-shaped steel template is adopted as the template, the template is processed into a whole, and a pre-buried steel bar connected with a structural steel bar is adopted to fix the template. The embedded bars are screw steel with the diameter of 14, the longitudinal spacing is 750mm, and the specific construction diagram is shown in figure 3; the template at the upper axillary angle position of the top plate is a 15mm thick bamboo plywood, the main edge below the template is 10I-steel, the secondary edge is a square wood of 85mm multiplied by 85mm, and the spacing is 200mm; the supporting system is supported by a 600 (transverse) multiplied by 900 (longitudinal) multiplied by 1500 (step distance) disc buckle type full framing scaffold, and the concrete construction diagram is shown in fig. 4.

The rectangular column template adopts a combined steel template, the template panel adopts a 5mm thick steel plate, the connecting plate adopts 10X 80 flat steel, and the back reinforcement adopts 8# channel steel; the section heights of the templates are 1.5m, 1m and 0.5m; after the template is installed, a 10# double-spliced groove steel frame is used as a column hoop, the vertical distance is 0.75m, and the column hoop is firmly reinforced at four corners by adopting phi 24 bolts; the installation of the column template needs to strictly control the axis, elevation, verticality and the section position of the inner edge line of the template, and a measuring staff carefully checks the drawing before the installation, checks the axis and the elevation control point position, and ensures that the installation can be organized behind no error; after the installation is completed, the verticality of the panel is checked by hanging a vertical line; in order to avoid quality defects caused by local leakage of the lower opening gap of the template, the column template is leveled by using equal-strength labeled masonry mortar at the bottom of the column before being installed; in order to avoid quality defects caused by local slurry leakage at the joint of the upper template and the lower template, sponge strips are stuck at the joint.

The column template supporting system adopts a rope opposite-pull mode, and a specific structure schematic diagram is shown in fig. 5; and phi 22 steel wire ropes are respectively arranged at the four corners of the column and oppositely pulled, the upper ends of the steel wire ropes are arranged on the column hoops, the lower ends of the steel wire ropes are connected with the embedded ground, the verticality of the column is regulated through elastic bolts, and the formwork foundation is tightly propped up by using ground anchors.

The engineering wall template adopts a combined steel template, a supporting system is a triangular steel frame for supporting, the length of each group of templates is 1.5m, the templates are divided into 54 groups, the total length is 81m, the side wall templates can be erected to have the height of 4.5 m-7.2 m, the side wall templates are processed and formed by factories and transported to the site for assembly, the side wall templates are spliced to the applicable height according to the site requirement, when the templates are erected, footings are leveled by supporting pads such as square timber, wood wedges, square steel and the like, pre-buried U-shaped steel bars (HRB 400, diameter 22mm, spacing 375mm and pre-buried angle 45 DEG) are connected with pins to pull the transverse pressure beams to fix the footings of the templates; when the embedded parts are embedded in the field, the pull-through wires are required to ensure that the embedded parts are on the same straight line, the support diagonal bracing feet are supported on the bottom plate by using adjustable supports, square timber (square steel) is used for leveling below the support diagonal bracing feet, after the support positions are fixed, the support trusses are longitudinally connected together by using steel pipes, and the vertical spacing of the steel pipes is the same as the spacing of truss cross beams.

The foundation bolts must be pre-embedded in place before the concrete is poured, and the embedding in the concrete pouring process and the embedding of later-stage bar planting are strictly forbidden; the foundation bolts are required to be embedded strictly according to the size and the position of the drawing, the specific construction diagram is shown in fig. 6, and the foundation bolts are controlled on the same height and on the same horizontal line; the embedded part system has the greatest stress in the whole single-side bracket system, and if the embedded part system is not reinforced in place, the installation and supporting quality of the later-stage bracket body can be influenced; the anchor bolts are made of phi 25HRB400 screw steel, the embedded interval of the front row of anchor bolts is 375mm, the embedded interval of the rear row of anchor bolts is 750mm, the embedded part and the board surface are embedded at an angle of 45 degrees, all parts of the embedded part system are required to be reinforced in place, and the outer connecting rod screw threads are required to protrude out of the butterfly nuts to be not less than 5 buckles.

Splicing the steel templates on the ground, hoisting the steel templates to a construction position by adopting an automobile crane or a portal crane to be in place, closing the wall templates, enabling the lower opening of the templates to be flush with a pre-sprung elevation control line, temporarily connecting the upper opening of the templates with steel bars by using an A6.5 steel wire rope and a bayonet, temporarily supporting by adopting not less than 2 steel pipes, and hoisting adjacent templates for installation; when the wall form is closed, the lower opening of the form is aligned with a pre-sprung wall edge, then a steel pipe back edge is installed, and the wall form is temporarily supported by the steel pipe; the single-side supports are hoisted to the site from a stacking place, the single-side supports are lightly placed and lifted when hoisted, when a plurality of single-side supports are piled together, the single-side supports are mutually stacked in order on a flat place to avoid deformation of the supports, the single-side supports assembled by standard joints and heightened joints are assembled in advance on the material stacking place, then hoisted to a working surface by a crane, after each 3 to 4 single-side supports are installed on a straight wall section, beam pressing channel steel of a buried part system is inserted, after the mounting of the supports is completed, a buried part system is installed, a back edge of a template and a single-side support part are connected into a whole by hook head bolts, a rear support of the single-side support is adjusted until the upper opening of a template panel inclines to the inner side of the wall by about 5mm because the single-side supports are stressed, and the template is slightly inclined backwards, and the mounting step is shown in fig. 7.

The above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model, and are intended to be included within the scope of the appended claims and description.

Claims (6)

1. A template support system for subway station concrete placement, its characterized in that: comprises a combined bracket, a side wall template and a support system frame; the composite bracket comprises: a support of an upturned beam template of the top bottom plate, an axillary angle template support, a middle column template support and a side wall template support; the side wall template is a combined template, and the support system frame comprises at least one double-spliced channel steel and at least one tripod.

2. A formwork support system for concrete placement in a subway station as claimed in claim 1, wherein: the wood template is characterized by further comprising a bottom plate upturning beam bottom beam axillary angle, wherein the bottom plate upturning beam bottom beam axillary angle is formed by combining and splicing shaping axillary angle steel template plywood, four square timber channels are respectively arranged on two vertical sides of a wood template part, the wood template part is equally distributed at equal intervals, two double-spliced steel pipes are horizontally arranged at the same time, and two opposite pull bolts are arranged.

3. A formwork support system for concrete placement in a subway station as claimed in claim 1, wherein: the steel plate is characterized by further comprising a rectangular column template, wherein the rectangular column template adopts a combined steel template, a template panel adopts a thick steel plate, a connecting plate adopts flat steel, and a back rib adopts channel steel; after the template is installed, the periphery of the template is used as a column hoop by a double-spliced groove steel frame, and the column hoop is firmly reinforced at four corners by bolts; the column template supporting system adopts a rope opposite pulling mode, steel wire ropes are respectively arranged at four corners of a column for opposite pulling, the upper ends of the steel wire ropes are arranged on the column hoops, the lower ends of the steel wire ropes are connected with the embedded ground, the verticality of the column is adjusted through elastic bolts, and the template foundation is tightly jacked by ground anchors.

4. A formwork support system for concrete placement in a subway station as claimed in claim 1, wherein: the wall form adopts a combined steel form and is supported by a triangular steel frame.

5. A formwork support system for concrete placement in a subway station as claimed in claim 1, wherein: the concrete pouring device further comprises foundation bolts, wherein the foundation bolts are pre-buried in place before pouring concrete.

6. A formwork support system for concrete placement in a subway station as defined in claim 4, wherein: the combined steel templates are formed by combining and splicing at least one steel template.

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