A method of constructing a concrete roof

Abstract

The application discloses a kind of inclined roof concrete construction methods, it is related to building construction technical field.The construction method includes the following steps: S1, erects bottom support system;S2, erects bottom formwork on the bottom support system;S3, steel reinforcement cage is laid on bottom formwork;S4, erects surface form;S5, installs plugboard;S6, concrete pouring;S7, removes plugboard;S8, removes movable formwork;S9, concrete curing;S10, removes formwork.The construction method designed by the application reduces the difficulty of concrete pouring and vibrating, strengthens the compactness of concrete pouring, avoids leakage, cracks, honeycomb and other conditions, improves the quality of concrete, and improves the flatness of concrete.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of building construction, in particular to a concrete construction method for a sloping roof. BACKGROUND

[0002] In addition to the beautiful appearance and high space utilization, the sloping roof can effectively resist seepage and leakage, insulate and keep warm, and smoothly drain water, thereby improving the living environment of the top floor. However, the concrete construction on the sloping roof is difficult, and the quality is difficult to control, and phenomena such as honeycomb, rough surface, and slippage are prone to occur.

[0003] The existing sloping roof construction usually adopts two methods: one is a single-sided formwork method, and the other is a double-sided clamping plate formwork method. The single-sided formwork method is generally used for a sloping roof with a small slope. When the slope is large, the concrete is in a slippage state under the action of gravity, and it is difficult to pour and form. In addition, the concrete pouring is not dense, and leakage is prone to occur. Therefore, when the slope is large, the double-sided clamping plate formwork method is generally used. However, the double-sided clamping plate formwork method is difficult to vibrate, and it is easy to vibrate out of place and cause phenomena such as honeycomb and holes. In addition, when the slope is long, it is difficult to pour concrete, and transverse shrinkage cracks and leakage are prone to occur. SUMMARY

[0004] The main purpose of the present application is to provide a concrete construction method for a sloping roof to solve the above problems.

[0005] To achieve the above purpose, the present application provides a concrete construction method for a sloping roof, comprising the following steps:

[0006] S1, setting up a bottom support system: adopting a steel pipe full-dock fastener type scaffold support system;

[0007] S2, setting up a bottom formwork on the bottom support system;

[0008] S3, laying a steel reinforcement cage on the bottom formwork;

[0009] S4, setting up a face form: the face form comprises a fixed formwork, a movable formwork, and a lead screw and nut mechanism; the fixed formwork and the movable formwork are connected through a plurality of lead screw and nut mechanisms to realize the up-and-down movement of the movable formwork relative to the fixed formwork;

[0010] S5, installing an insert plate: the insert plate penetrates through the fixed formwork and the movable formwork and abuts against the bottom formwork, thereby separating the space between the face form and the bottom formwork into a plurality of chambers;

[0011] S6, pouring concrete: when pouring, each chamber is poured and vibrated in turn from bottom to top;

[0012] S7, removing the insert plate: the insert plate is removed before the initial setting of the concrete and is subjected to secondary vibration;

[0013] S8, moving the activity template to the base template by a certain distance, filling the space left after the removal of the plug-in plate and the vibration;

[0014] S9, concrete curing;

[0015] S10, removing the formwork.

[0016] Further, in step S4, a corresponding slot is arranged on the fixed template and the movable template, a plurality of corresponding vibrating holes and pouring holes are arranged on the fixed template and the movable template, and a threaded cover with the same thickness as the movable template is arranged on the vibrating hole and the pouring hole of the movable template.

[0017] Further, in step S5, the width of the plug-in plate is the same as the slot; the bottom of the plug-in plate is provided with a clearance groove for avoiding the steel reinforcement cage.

[0018] Further, in steps S6 and S7, the vibrating is performed by using the plug-in vibrator.

[0019] Further, in step S8, before the movable template moves, the threaded cover on the vibrating hole and the pouring hole is tightened, the steel plate for filling the slot is inserted, the surface of the movable template facing the base template is a plane, and the steel plate is fixed on the movable template.

[0020] Further, a plurality of short steel bars with the same length are welded on the steel reinforcement cage, the short steel bars are perpendicular to the base template and abut against the fixed template, a steel bar hole corresponding to the short steel bar is arranged on the movable template, and the diameter of the steel bar hole is the same as the diameter of the short steel bar.

[0021] The present application divides the space between the surface template and the base template into chambers by the plug-in plate, realizes the staged pouring of concrete, makes the concrete pouring dense and easy to vibrate, avoids leakage and honeycomb, etc., makes the concrete more closely adhere to the template by the arrangement of the movable template, improves the density of the concrete, avoids cracks, sliding, etc., makes the quality of the concrete better and the flatness higher, and avoids the deviation of the steel bar by the arrangement of the short steel bar penetrating the steel bar hole of the movable template, thereby improving the construction quality. BRIEF DESCRIPTION OF DRAWINGS

[0022] Fig. 1 It is a sectional view of the construction device of the present application;

[0023] Fig. 2 It is a top view of the surface template of the present application;

[0024] Fig. 3 It is a schematic view of the plug-in plate of the present application.

[0025] Wherein, 1 - bottom template; 2 - fixed template; 3 - movable template; 4 - screw nut mechanism; 5 - plugboard; 6 - slot; 7 - vibrating hole. DETAILED DESCRIPTION

[0026] In order to achieve the above-mentioned purpose and effect, the technical means and structure adopted by the present application are described in detail in combination with the preferred embodiments of the present application, features and functions.

[0027] As Figs. 1-3 shown, the present application provides a kind of concrete construction method of inclined roof, comprising the following steps:

[0028] S1, set up bottom support system: using steel pipe full hall fastener type scaffold support system;

[0029] S2, bottom template 1 is set up on the bottom support system;The width of the bottom template is greater than the width of the roof to be poured;

[0030] S3, steel reinforcement cage is arranged on bottom template 1;A plurality of short steel bars with the same length are welded on the steel reinforcement cage;

[0031] S4, set up face mold: steel pipe full hall fastener type scaffold support system is set up around bottom template 1, and face mold is set up on the steel pipe full hall fastener type scaffold support system;The face mold includes fixed template 2, movable template 3 and screw nut mechanism 4;The fixed template 2 is set on the short steel bar, the movable template 3 is provided with steel reinforcement hole corresponding to the short steel bar one by one, and the diameter of the steel reinforcement hole is the same as that of the short steel bar;The fixed template 2 and the movable template 3 are connected through a plurality of screw nut mechanisms 4, so that the movable template 3 moves up and down relative to the fixed template 2;The fixed template 2 and the movable template 3 are provided with corresponding slots 6 at intervals, the slots 6 are only arranged on the corresponding area of the fixed template 2 and the movable template 3 with the inclined roof, and the edge beyond the inclined roof area is not provided with the slot 6, a plurality of vibrating holes 7 and pouring holes corresponding to the fixed template 2 and the movable template 3 are arranged on the fixed template 2 and the movable template 3, and the vibrating holes 7 and the pouring holes on the movable template 3 are provided with screw thread covers with the same thickness as the movable template 3;The diameter of the vibrating hole 7 and the pouring hole on the fixed template 2 is greater than that of the vibrating hole 7 and the pouring hole on the movable template 3;The width of the face mold is the same as that of the bottom template, and side template is set around the bottom template to support the face mold;

[0032] S5, install plugboard 5: the plugboard 5 passes through the fixed template 2 and the movable template 3 and abuts against the bottom template 1, so as to divide the space between the face mold and the bottom template 1 into a plurality of chambers;The width of the plugboard 5 is the same as that of the slot 6;The bottom of the plugboard 5 is provided with a clearance slot, and the clearance slot is used to avoid the steel reinforcement cage;

[0033] S6, pouring concrete: pouring from bottom to top, pouring each chamber in turn and vibrating;

[0034] S7, removing the insert plate 5: removing the insert plate 5 before the initial setting of the concrete and performing secondary vibration;

[0035] S8, moving the movable formwork 3: tightening the threaded cover on the vibrating hole 7 and the pouring hole, so that the threaded cover fills the vibrating hole 7 and the pouring hole and the bottom surface of the threaded cover is on the same plane as the bottom surface of the movable formwork 3, inserting a steel plate for filling the slot 6 to prevent concrete overflow and make the surface of the movable formwork 3 towards the bottom formwork 1 a plane, and fixing the steel plate on the movable formwork 3; driving the lead screw nut mechanism 4 to move the movable formwork 3 towards the bottom formwork 1 by a certain distance, filling the space left after removing the insert plate 5 and vibrating and compacting the concrete, so that the concrete fully fills the gap between the surface formwork and the bottom formwork;

[0036] S9, curing the concrete;

[0037] S10, removing the formwork; cutting off the exposed steel bar head, grinding the steel bar head to 1-2mm below the concrete surface, cleaning and drying the cut surface, and then applying epoxy mortar or acrylic mortar to smooth it out.

[0038] In another embodiment, in steps S6 and S7, a plug-in vibrator is used for vibration.

[0039] The above only describes the preferred embodiments of the present application, not all embodiments, anyone should know that the structural changes made under the inspiration of the present application, any technical solution with the same or similar to the present application, all belong to the protection scope of the present application.

Claims

1. A method for constructing sloping roof concrete, characterized in that, Includes the following steps: S1. Erecting the bottom support system: A steel pipe full-span coupler scaffolding support system is adopted; S2. Erect a bottom formwork (1) on the bottom support system; S3. Lay out a steel cage on the bottom formwork (1); S4. Setting up the face mold: The face mold includes a fixed template (2), a movable template (3) and a screw and nut mechanism (4); the fixed template (2) and the movable template (3) are connected by multiple screw and nut mechanisms (4) to realize the up and down movement of the movable template (3) relative to the fixed template (2); S5. Install the insert plate (5): The insert plate (5) passes through the fixed template (2) and the movable template (3) and abuts against the bottom template (1), dividing the face mold and the bottom template (1) into multiple chambers; S6. Concrete pouring: During pouring, pour each chamber sequentially from bottom to top and vibrate it. S7. Remove the insert plate (5): Remove the insert plate (5) before the concrete sets and perform secondary vibration. S8. Move the movable template (3): Move the movable template (3) a certain distance toward the bottom template (1) to fill the space left by the removal of the insert plate (5) and vibration; Before moving the movable template (3), tighten the threaded caps on the vibration hole (7) and the concrete injection hole, insert the steel plate used to fill the slot (6), so that the surface of the movable template (3) facing the bottom template (1) is flat, and fix the steel plate on the movable template (3); S9. Concrete curing; S10, Demolding.

2. The method for constructing a sloping roof concrete as described in claim 1, characterized in that, In step S4, the fixed template (2) and the movable template (3) are provided with corresponding slots (6) at intervals, and the fixed template (2) and the movable template (3) are provided with multiple corresponding vibration holes (7) and concrete injection holes. The vibration holes (7) and concrete injection holes on the movable template (3) are provided with threaded caps with the same thickness as the movable template (3).

3. The method for constructing a sloping roof concrete as described in claim 2, characterized in that, In step S5, the width of the insert plate (5) is the same as that of the slot (6); the bottom of the insert plate (5) is provided with a clearance groove, which is used to avoid the steel cage.

4. The method for constructing a sloping roof concrete as described in claim 1, characterized in that, In steps S6 and S7, an immersion vibrator is used for compaction.

5. The method for constructing a sloping roof concrete as described in claim 1, characterized in that, The steel cage is welded with multiple short steel bars of the same length at intervals. The short steel bars are perpendicular to the bottom template (1) and abut against the fixed template (2). The movable template (3) is provided with steel bar holes that correspond one-to-one with the short steel bars. The diameter of the steel bar holes is the same as the diameter of the short steel bars.

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