CN109208790B - Single-side formwork erecting construction method for arc shear wall - Google Patents
Single-side formwork erecting construction method for arc shear wall Download PDFInfo
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- CN109208790B CN109208790B CN201811150699.4A CN201811150699A CN109208790B CN 109208790 B CN109208790 B CN 109208790B CN 201811150699 A CN201811150699 A CN 201811150699A CN 109208790 B CN109208790 B CN 109208790B
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
- E04B2/84—Walls made by casting, pouring, or tamping in situ
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G11/00—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs
- E04G11/06—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for walls, e.g. curved end panels for wall shutterings; filler elements for wall shutterings; shutterings for vertical ducts
- E04G11/062—Forms for curved walls
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Abstract
The invention discloses a construction method for a unilateral formwork of a circular arc shear wall, belonging to the technical field of constructional engineering; the method comprises 8 steps of measuring and setting out, installing reinforcing steel bars, manufacturing the arc wall formwork, assembling and fixing the arc formwork, fixing the bottom of the outer side formwork, erecting a support, pouring concrete, dismantling the formwork and supporting. According to the invention, by adopting the large template, the template splicing seams are reduced, the template splicing time is reduced, and the construction speed is accelerated; the customized circular arc template of the steel-plastic combined template system is adopted, so that the radian and the perpendicularity deviation of a circle are reduced, and the engineering quality is improved; after the bottom is fixed by adopting the counter-pulling screw and the lower layer square strips are compressed, the stability of the template is enhanced, the displacement of the template is reduced, and the situations of slurry leakage, uneven surface, mold expansion, slab staggering and the like at the bottom of the outer wall are avoided; the wall triangular steel pipe truss system is fixed with the template steel bar back edge by adopting a steel pipe and a fastener, and the template is controlled to incline, so that the safety is improved; the large steel-plastic formwork and the triangular steel pipe truss system are recycled, energy is saved, environment is protected, and the manufacturing cost is reduced.
Description
Technical Field
The invention belongs to the technical field of constructional engineering, and particularly relates to a construction method for a single-side formwork of an arc shear wall.
Background
With the progress of the times, a plurality of buildings are designed to show the advantages, for example, the arc shear wall is applied to modern buildings more, and brand new visual enjoyment is brought to people. However, the application of the arc shear wall also brings a lot of difficulties and inconvenience to engineering construction, and mainly shows that the design and installation of the template and the support thereof are complex; difficulty in concrete pouring construction, and the like. The conventional construction method uses a shaped arc-shaped steel die and an arc-shaped square steel or steel pipe transverse ridge as a die carrier system, so that the construction cost is high, and the secondary utilization rate of the steel die and the transverse ridge is low; due to the fact that the shear wall has an inclined angle, when the vibrating rod is inserted, the shear wall is easily interfered by reinforcing steel bars, the lower insertion is difficult to place, and the problems of non-compact vibration and the like are easily caused; radian and straightness are difficult to control with hanging down, and the template holding power is unbalanced when concrete placement, and the template is difficult to be fixed, quality problems such as easy appearance explodes the mould, leaks thick liquid, wrong platform. Therefore, the construction method which has the advantages of low cost, accurate radian and high concrete pouring speed and ensures the construction quality needs to be invented.
Disclosure of Invention
The invention aims to provide a construction method for a single-side formwork of an arc shear wall, which aims to solve the technical problems that the arc radian and the verticality of the single-side formwork wall of the arc shear wall are difficult to control, the supporting force of a formwork is unbalanced during concrete pouring, the formwork is difficult to fix, and the formwork is easy to explode, leak slurry and stagger.
In order to achieve the purpose, the invention adopts the following technical scheme:
the construction method of the single-side formwork of the circular arc shear wall comprises the steps of measurement paying-off, steel bar installation, circular arc wall formwork manufacturing, circular arc formwork assembling and fixing, outer side formwork bottom fixing, support erection, concrete pouring and formwork and support dismantling, and is characterized by comprising the following steps:
1) and (3) measurement and paying-off: calculating the coordinate position of each longitudinal and transverse axis and the arc by using AutoCAD software, and calculating the vertical distance from a tangent to the arc by adopting a method of equally dividing the tangent of the vertex of the arc so as to calculate an arc curve;
2) and (3) steel bar installation: pre-bending the main reinforcement of the arc shear wall according to the radius of the corresponding wall after finishing blanking; when the circular arc shear wall stirrups are bound, the concrete protective layer cushion blocks are bound together, and positioning short steel bars with the same width as the wall section are welded at the bottom, the middle part and the upper part of the main wall reinforcement respectively to prevent the template from shifting;
3) manufacturing an arc wall template: the outer side template is an arc-shaped steel template which is spliced into a large template with the height of less than 5m by bolts, and the arc-shaped steel template is spliced on the ground and installed by adopting an integral hoisting large template; the inner side templates are assembled by plastic templates, and the heights of the assembled templates and the outer side templates are consistent;
4) assembling and fixing the arc template: the arc shear wall template adopts a steel-plastic combined template system, and is formed by reinforcing, assembling and molding a steel outer template and a plastic inner template through a steel pipe, a steel bar and a split screw; the inner edge is made of steel pipes, the outer edge on the outer side is made of circular steel pipes, the outer edge on the inner side is made of circular threaded steel bars, and the circular steel pipes and the outer edge of the steel bars are manufactured according to the radian of the circular shear wall; when the screw holes are drilled, the directions are uniform and face the circle center, the heights are uniform, inclined drilling is strictly forbidden, deviation and distortion of the section size of the arc wall during reinforcement are avoided, PVC pipes are sleeved on the opposite-pulling screws, the opposite-pulling screws are convenient to disassemble and are screwed tightly, and the radian and the verticality of the side template are adjusted; aligning the lower opening of the template with the edge line of the wall which is previously bounced, and then installing the template in place to ensure that the template is installed in place and slurry cannot leak; adjusting the back edge and the inclined strut of the template to enable the upper opening of the template to be inclined inwards by 4-6 mm, preferably 5mm, so that the single-side support system can be inclined backwards under stress;
5) the bottom of the outer side template is fixed: in the template reinforcing process, counter-pulling screws are pre-buried in a floor slab, and the lower end of a side template is fixed; compressing the bottom of the side template at the original split screw of the next layer of wall by using square wood of 50mm multiplied by 100 mm;
6) erecting a support: when the floor slab is cast and tamped, firstly, the vertical rod position of the diagonal brace formwork support close to the wallboard is calculated, phi 25 twisted steel is pre-embedded before the concrete of the floor slab is poured, the horizontal distance is less than 800mm, the twisted steel and the steel of the floor slab are welded and fixed, and the part of the twisted steel is embedded into the concrete; the upright rod is sleeved outside the exposed part of the twisted steel; the triangular steel pipe truss upright rod is sleeved with the triangular steel pipe truss upright rod, and the longitudinal and transverse floor sweeping rods are arranged as the fulcrums of the inclined supporting pipes; connecting two or more steel pipes with diameter of 48 multiplied by 3.5mm with the inner side template steel pipe through fasteners, and embedding the thread steel bars at the same horizontal distance; the vertical rods, the diagonal bracing steel pipes and the horizontal steel pipes form a unilateral formwork-supporting fastener type triangular steel pipe truss system; the template triangular steel pipe truss system is independently supported and is not connected with the floor formwork support frame, so that mutual influence caused by displacement of the two formwork support frames is avoided; cutting off exposed steel bars after construction is finished;
7) pouring of concrete
In order to facilitate construction and reduce the self-falling height of concrete during pouring, the concrete is poured in layers each time, the pouring height of each layer is 590-610 mm, preferably 600mm, and one-time pouring is strictly forbidden; using an insertion type vibrating rod to vibrate for 15-30 s, taking the concrete surface not to sink and the surface not to have bubbles as a degree, and performing secondary re-vibration after 20-30 min; the vibration is dense, so that the phenomena of fault and layering are prevented; in the concrete pouring process, a quality inspector and a carpenter need to hang and check the deformation condition of the template so as to correct the deviation of the template at any time; after pouring, covering with a plastic film;
8) demolition formwork and support
Removing the template, segmenting and blocking; after the concrete is finally set, dismantling an inclined strut rod piece and a part of horizontal rods of the wall body; when the wall concrete reaches the specified form removal strength and the surface and edges of the newly cast wall are not damaged due to form removal, removing all the supports and the templates; the detached templates and accessories are received and transmitted by a specially-assigned person, stacked according to a designated place, and cleaned, maintained and coated with a separant in time for reuse; and (5) reinforcing maintenance after the concrete is removed.
The construction method for the unilateral formwork support of the arc shear wall is characterized in that in the step 3), the outer formwork adopts arc steel formworks with the thickness of more than 6mm and the height of less than 1.5m, and the arc steel formworks are spliced into a large formwork with the height of less than 5m by bolts; the inner side templates are assembled by plastic templates with the thickness of 18 mm.
The construction method for the single-side formwork erection of the arc shear wall is characterized in that steel pipes with the diameter of 48 multiplied by 3.5mm are adopted for the inner edges in the step 4), and the horizontal distance is less than 250 mm; the outer edge of the outer side adopts a phi 48 multiplied by 3.5mm circular arc steel pipe, the outer edge of the inner side adopts a phi 18 circular arc twisted steel bar, and the vertical distance is less than 500 mm; the counter-pulling screw rod adopts phi 14 and has a horizontal spacing of less than 500 mm.
The construction method for the single-side formwork erection of the arc shear wall is characterized in that phi 25 twisted steel bars are pre-embedded before the concrete of the floor slab is poured in the step 6), the length of the twisted steel bars is 700mm, the twisted steel bars are welded and fixed with the steel bars of the floor slab, the twisted steel bars are exposed for 300mm, and the twisted steel bars are embedded into the concrete for 400 mm.
The construction method for the single-side formwork erection of the arc shear wall is characterized in that in the step 6), the upright post is sleeved outside the exposed part of the deformed steel bar, and a steel bar with the diameter of phi 12 is embedded beside the ground anchor steel bar when the upright post is sleeved in, so that the steel pipe and the ground anchor steel bar are reliably fixed.
The construction method for the unilateral formwork support of the arc shear wall is characterized in that in the step 8), when the concrete of the wall body reaches the specified formwork removal strength and the surface and edges of a newly cast wall body are not damaged due to formwork removal, all supports and formworks are removed, if the formworks are tightly bonded with the concrete, the formworks need to be knocked by using a wood cone to be loosened and then pulled down, so that the formwork cannot be knocked out in disorder.
The invention utilizes the conventional steel pipe fastener to set up a triangular steel pipe truss with better rigidity, transmits the horizontal lateral pressure transmitted from the outer wall to the steel bar ground anchor through the truss, converts the horizontal force into the pressure to the ground and the shearing force to the steel bar of the ground anchor, ensures the balance of the lateral pressure transmitted when the concrete of the outer wall is poured, and further ensures the forming quality of the concrete of the outer wall.
The invention has the beneficial effects that: according to the invention, by adopting the large template, the template splicing seams are reduced, the template splicing time is reduced, and the construction speed is accelerated; the customized circular arc template of the steel-plastic combined template system is adopted, so that the radian and the perpendicularity deviation of a circle are reduced, and the engineering quality is improved; after the bottom is fixed by adopting the counter-pulling screw and the lower layer square strips are compressed, the stability of the template is enhanced, the displacement of the template is reduced, and the situations of slurry leakage, uneven surface, mold expansion, slab staggering and the like at the bottom of the outer wall are avoided; the wall triangular steel pipe truss system is fixed with the template steel bar back edge by adopting a steel pipe and a fastener, and the template is controlled to incline, so that the safety is improved; the large steel-plastic formwork and the triangular steel pipe truss system are recycled, the turnover frequency is increased, energy is saved, the environment is protected, and the manufacturing cost is reduced.
Detailed Description
The invention is further described with reference to the following examples, but the scope of the invention is not limited thereto:
example 1: the construction method for the unilateral formwork erection of the arc shear wall specifically comprises the following steps:
1) and (3) measurement and paying-off: calculating the coordinate position of each longitudinal and transverse axis and the arc by using AutoCAD software, and calculating the vertical distance from a tangent to the arc by adopting a method of equally dividing the tangent of the vertex of the arc so as to calculate an arc curve;
2) and (3) steel bar installation: pre-bending the main reinforcement of the arc shear wall according to the radius of the corresponding wall after finishing blanking; when the circular arc shear wall stirrups are bound, the concrete protective layer cushion blocks are bound together, and positioning short steel bars with the same width as the wall section are welded at the bottom, the middle part and the upper part of the main wall reinforcement respectively to prevent the template from shifting;
3) manufacturing an arc wall template: the outer side template is a circular arc steel template with the thickness of more than 6mm and the height of less than 1.5m, and is spliced into a large template with the height of less than 5m by bolts; assembling the circular arc-shaped steel templates on the ground, and installing the circular arc-shaped steel templates by adopting an integral hoisting large template; the inner side templates are assembled by plastic templates with the thickness of 18mm, and the heights of the assembled templates are consistent with those of the outer side templates;
4) assembling and fixing the arc template: the arc shear wall template adopts a steel-plastic combined template system, and is formed by reinforcing, assembling and molding a steel outer template and a plastic inner template through a steel pipe, a steel bar and a wall-penetrating screw rod; the inner edge adopts a phi 48 multiplied by 3.5mm steel pipe, the horizontal spacing is below 250mm, the outer edge adopts a phi 48 multiplied by 3.5mm circular steel pipe, the inner edge adopts a phi 18 circular threaded steel bar, the circular steel pipe and the steel bar outer edge are manufactured according to the radian of a circular shear wall, the vertical spacing is below 500mm, the counter-pulling screw rod adopts phi 14, and the horizontal spacing is below 500 mm; when the screw hole is drilled, the direction is uniform and the height is uniform, the inclined drilling is strictly forbidden, and the deviation and the distortion of the section size of the arc wall during the reinforcement are avoided; PVC pipes are sleeved on the opposite-pulling screw rods, so that the opposite-pulling screw rods are convenient to disassemble; tightening and connecting the counter-pulling screw rods, and adjusting the radian and the verticality of the side mold; aligning the lower opening of the template with the edge line of the wall which is previously bounced, and then installing the template in place to ensure that the template is installed in place and slurry cannot leak; adjusting the back edge and the inclined strut of the template to enable the upper opening of the template to be inclined inwards by 5mm for the single-side support system to be inclined backwards under stress;
5) the bottom of the outer side template is fixed: in the template reinforcing process, counter-pulling screws are pre-buried in a floor slab, and the lower ends of side molds are fixed; and (3) pressing the bottom of the side mold at the original split screw of the next layer of wall by using square wood with the thickness of 50mm multiplied by 100 mm.
6) Erecting a support: when the floor slab is cast and tamped, firstly, the vertical rod position of the diagonal bracing formwork support close to the wallboard is calculated, phi 25 twisted steel is pre-embedded before the concrete of the floor slab is poured, the length of the twisted steel is 700mm, the horizontal spacing is below 800mm, the twisted steel is welded and fixed with the steel bar of the floor slab, the twisted steel is exposed by 300mm and embedded in the concrete by 400 mm; the upright post is sleeved outside the exposed part of the deformed steel bar; because the inner diameter of the vertical rod is larger than the diameter of the ground anchor steel bar, in order to prevent the vertical rod from moving, a steel bar with the diameter of phi 12 is embedded beside the ground anchor steel bar when the vertical rod is sleeved in, so that the steel pipe and the ground anchor steel bar are reliably fixed; the triangular steel pipe truss upright rod is sleeved with the triangular steel pipe truss upright rod, and the longitudinal and transverse floor sweeping rods are arranged as the fulcrums of the inclined supporting pipes; connecting two or more steel pipes with diameter of 48 multiplied by 3.5mm with the inner side template steel pipe through fasteners, and embedding the thread steel bars at the same horizontal distance; the vertical rods, the diagonal bracing steel pipes and the horizontal steel pipes form a unilateral formwork-supporting fastener type triangular steel pipe truss system; the triangular steel pipe truss system of the template is independently supported and is not connected with the floor formwork support frame, so that mutual influence caused by displacement of the two formwork support frames is avoided; cutting off exposed steel bars after construction is finished;
7) pouring of concrete
In order to facilitate construction and reduce the self-falling height during concrete pouring, the concrete is poured in layers each time, the pouring height of each layer is 600mm, and one-time pouring is strictly forbidden to be too high (mold burst or vibration is easy to cause no repeated seam); using an insertion type vibrating rod to vibrate for 15-30 s, taking the concrete surface not to sink and the surface not to have bubbles as a degree, and performing secondary re-vibration after 20-30 min; the vibration is dense, so that the phenomena of fault and layering are prevented; in the concrete pouring process, quality inspectors and woodworkers need to frequently check the deformation condition of the template by hanging so as to correct the deviation of the template at any time; after pouring, covering with a plastic film;
8) demolition formwork and support
Removing the template, segmenting and carrying out the template in blocks; after the concrete is finally set, dismantling an inclined strut rod piece and a part of horizontal rods of the wall body; when the wall concrete reaches the specified form removal strength and the surface and edges of the newly cast wall are not damaged due to form removal, removing all the supports and the templates; if the template is tightly bonded with the concrete, knocking the template by a wood awl to loosen the template, and then pulling down the template without messy smashing; the detached templates and accessories are received and transmitted by a specially-assigned person, stacked according to a designated place, and cleaned, maintained and coated with a separant in time for reuse; and after the concrete is removed, the maintenance is reinforced.
Claims (3)
1. The construction method of the single-side formwork of the circular arc shear wall comprises the steps of measurement paying-off, steel bar installation, circular arc wall formwork manufacturing, circular arc formwork assembling and fixing, outer side formwork bottom fixing, support erection, concrete pouring and formwork and support dismantling, and is characterized by comprising the following steps:
1) and (3) measurement and paying-off: calculating the coordinate position of each longitudinal and transverse axis and the arc by using AutoCAD software, and calculating the vertical distance from a tangent to the arc by adopting a method of equally dividing the tangent of the vertex of the arc so as to calculate an arc curve;
2) and (3) steel bar installation: pre-bending the main reinforcement of the arc shear wall according to the radius of the corresponding wall after finishing blanking; when the circular arc shear wall stirrups are bound, the concrete protective layer cushion blocks are bound together, and positioning short steel bars with the same width as the wall section are welded at the bottom, the middle part and the upper part of the main wall reinforcement respectively to prevent the template from shifting;
3) manufacturing an arc wall template: the outer side template is an arc-shaped steel template which is spliced into a large template with the height of less than 5m by bolts, and the arc-shaped steel template is spliced on the ground and installed by adopting an integral hoisting large template; the inner side templates are spliced by plastic templates, the spliced templates are as high as the outer side templates, the outer side templates are arc-shaped steel templates with the thickness of more than 6mm and the height of less than 1.5m, and the arc-shaped steel templates are spliced into a large template with the height of less than 5m by bolts; the inner side templates are assembled by plastic templates with the thickness of 18 mm;
4) assembling and fixing the arc template: the arc shear wall template adopts a steel-plastic combined template system, and is formed by reinforcing, assembling and molding a steel outer template and a plastic inner template through a steel pipe, a steel bar and a split screw; the inner edge is made of steel pipes, the outer edge on the outer side is made of circular steel pipes, the outer edge on the inner side is made of circular threaded steel bars, and the circular steel pipes and the outer edge of the steel bars are manufactured according to the radian of the circular shear wall; when the screw holes are drilled, the directions are uniform and face the circle center, the heights are uniform, inclined drilling is strictly forbidden, deviation and distortion of the section size of the arc wall during reinforcement are avoided, PVC pipes are sleeved on the opposite-pulling screws, the opposite-pulling screws are convenient to disassemble and are screwed tightly, and the radian and the verticality of the side template are adjusted; aligning the lower opening of the template with the edge line of the wall which is previously bounced, and then installing the template in place to ensure that the template is installed in place and slurry cannot leak; adjusting the back edge and the inclined strut of the template to enable the upper opening of the template to be inclined inwards by 4-6 mm for the single-side support system to be inclined backwards under stress, wherein the inner edge is made of a steel pipe with the diameter of 48 multiplied by 3.5mm, and the horizontal distance is less than 250 mm; the outer edge of the outer side adopts a phi 48 multiplied by 3.5mm circular arc steel pipe, the outer edge of the inner side adopts a phi 18 circular arc twisted steel bar, and the vertical distance is less than 500 mm; the counter-pulling screw rod adopts phi 14 and has a horizontal spacing of less than 500 mm;
5) the bottom of the outer side template is fixed: in the template reinforcing process, counter-pulling screws are pre-buried in a floor slab, and the lower end of a side template is fixed; compressing the bottom of the side template at the original split screw of the next layer of wall by using square wood of 50mm multiplied by 100 mm;
6) erecting a support: when the floor slab is cast and tamped, firstly, the vertical rod position of the diagonal brace formwork support close to the wallboard is calculated, phi 25 twisted steel is pre-embedded before the concrete of the floor slab is poured, the horizontal distance is less than 800mm, the twisted steel and the steel of the floor slab are welded and fixed, and the part of the twisted steel is embedded into the concrete; the upright rod is sleeved outside the exposed part of the twisted steel; the triangular steel pipe truss upright rod is sleeved with the triangular steel pipe truss upright rod, and the longitudinal and transverse floor sweeping rods are arranged as the fulcrums of the inclined supporting pipes; connecting two or more steel pipes with diameter of 48 multiplied by 3.5mm with the inner side template steel pipe through fasteners, and embedding the thread steel bars at the same horizontal distance; the vertical rods, the diagonal bracing steel pipes and the horizontal steel pipes form a unilateral formwork-supporting fastener type triangular steel pipe truss system; the template triangular steel pipe truss system is independently supported and is not connected with the floor formwork support frame, so that mutual influence caused by displacement of the two formwork support frames is avoided; cutting off exposed reinforcing steel bars after construction is finished, embedding phi 25 twisted steel bars before floor concrete pouring, welding and fixing the twisted steel bars with the length of 700mm with the floor reinforcing steel bars, exposing the twisted steel bars for 300mm, and embedding the twisted steel bars into concrete for 400 mm;
7) pouring of concrete
In order to facilitate construction and reduce the self-falling height of concrete during pouring, the concrete is poured in layers each time, the pouring height of each layer is 590-610 mm, and one-time pouring is strictly forbidden to be too high; using an insertion type vibrating rod to vibrate for 15-30 s, taking the concrete surface not to sink and the surface not to have bubbles as a degree, and performing secondary re-vibration after 20-30 min; the vibration is dense, so that the phenomena of fault and layering are prevented; in the concrete pouring process, a quality inspector and a carpenter need to hang and check the deformation condition of the template so as to correct the deviation of the template at any time; after pouring, covering with a plastic film;
8) demolition formwork and support
Removing the template, segmenting and blocking; after the concrete is finally set, dismantling an inclined strut rod piece and a part of horizontal rods of the wall body; when the wall concrete reaches the specified form removal strength and the surface and edges of the newly cast wall are not damaged due to form removal, removing all the supports and the templates; the detached templates and accessories are received and transmitted by a specially-assigned person, stacked according to a designated place, and cleaned, maintained and coated with a separant in time for reuse; and (5) reinforcing maintenance after the concrete is removed.
2. The single-side formwork erecting construction method for the circular arc shear wall according to claim 1, wherein in the step 6), the upright rods are sleeved outside the exposed parts of the twisted steel bars, and when the upright rods are sleeved in, a steel bar with the diameter of phi 12 is embedded beside the ground anchor steel bars, so that the steel pipes and the ground anchor steel bars are reliably fixed.
3. The single-side formwork erecting construction method for the arc shear wall according to claim 1, wherein in the step 8), when the wall concrete reaches the specified formwork removing strength and the newly cast wall surface and the edges and corners are not damaged due to formwork removing, all the supports and the formworks are removed, if the formworks are tightly adhered to the concrete, the formworks are knocked to be loosened by using a wood cone and then pulled down, so that the formwork is not smashed in disorder.
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| CN109681239A (en) * | 2019-01-16 | 2019-04-26 | 北京市政建设集团有限责任公司 | A kind of unearthed tunnel mould bases construction method of shield |
| CN110158943A (en) * | 2019-06-05 | 2019-08-23 | 桂林理工大学 | A kind of clear-water concrete shear wall formwork and to drawing element apparatus |
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| CN111395591A (en) * | 2020-04-28 | 2020-07-10 | 广西建工集团第一建筑工程有限责任公司 | Lateral thin-wall arc-shaped circular hole concrete shear wall, support system and construction method |
| CN111622497B (en) * | 2020-06-22 | 2024-10-18 | 中国五冶集团有限公司 | Single-side template structure of large-angle outwards-inclined wall body |
| CN113944318B (en) * | 2021-11-03 | 2023-04-11 | 上海建工五建集团有限公司 | Steel template reinforcing device, arc-shaped combined shaping steel template and using method thereof |
| CN114541475B (en) * | 2022-01-04 | 2023-07-21 | 中国建筑第八工程局有限公司 | Construction method of irregular curvature underground outer wall |
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| JPH1162070A (en) * | 1997-08-07 | 1999-03-05 | Chichibu Onoda Cement Corp | Form panel for moulding concrete decoration wall surface, and construction of concrete decoration wall surface using same form panel |
| CN201649623U (en) * | 2010-01-28 | 2010-11-24 | 浙江八达建设集团有限公司 | Large basement shearing wall truss type steel tube unilateral formwork supporting structure |
| CN105888108B (en) * | 2016-05-25 | 2018-02-02 | 中大建设股份有限公司 | Built-in positioning prefabricated component reinforced concrete shear wall and construction method |
| CN108385980A (en) * | 2018-02-28 | 2018-08-10 | 五冶集团上海有限公司 | Deformation joint shear wall set shaped steel formwork installs unidirectional fastening screw construction method |
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