Construction method of multi-layer inclined roof base mat

Abstract

The application discloses a kind of multilayer inclined roof foundation cushion plate construction methods, comprising the following construction steps: S1: construction preparation;S2: lower layer inclined roof concrete pouring;S3: foundation cushion plate installation: foundation cushion plate includes bottom foundation cushion piece, bottom foundation cushion piece is installed in ridge line two sides, and installation foundation for providing the support system of upper layer inclined roof formwork is set on bottom foundation cushion piece;S4: install upper layer inclined roof support system;S5: install upper layer inclined roof formwork system;S6: pour upper layer inclined roof concrete;S7: remove.This construction method solves the current in lower layer inclined roof pre-buried short steel bar as the practice of the bottom of vertical pole, avoids destroying inclined roof structure, avoids damaging waterproof layer.

Description

Technical Field

[0001] This invention relates to the technical field of building construction, and in particular to a method for constructing a foundation pad for a multi-layered sloping roof. Background Technology

[0002] A sloping roof typically refers to a roof with a steep slope, generally greater than 10%. Sloping roofs are widely used in construction and mainly include single-slope, double-slope, four-slope, and zigzag roofs.

[0003] During the construction of multi-story sloping roofs, the complex shape of the roof structure, the varying heights of the sloping roofs, and the inclined roof panels present significant challenges. For multi-story sloping roofs, especially when the support system for the upper sloping roof needs to be erected on top of the panels of the lower sloping roof, the erection of the formwork support is exceptionally difficult. The core issue is that the lower sloping roof is inclined, and the vertical support system tends to tilt downwards, making it difficult for the support system to transfer vertical forces to the sloping roof, which then transfers the force to the foundation. Furthermore, the sloping roof panels and the presence of dormer windows further complicate the erection of the support system. The entire support system is not fully supported, making it crucial to control the placement of horizontal bars and the force transmission path of the load-bearing uprights. The requirements for formwork configuration are also higher. The construction of roof formwork projects is characterized by high difficulty, high labor intensity, difficulty in elevation control, and high consumption of formwork and other reusable materials. Summary of the Invention

[0004] In view of this, the present invention provides a method for constructing a foundation pad for a multi-layer sloping roof, which is used as a foundation pad at the bottom of the support system uprights during the construction of a multi-layer sloping roof. This facilitates the support system to be stably and reliably supported on the upper part of the lower sloping roof panel, ensuring that the uprights reliably transmit the vertical force to the sloping roof, and finally the lower sloping roof support system gradually transmits it to the foundation.

[0005] The present invention provides a construction method for a foundation pad for a multi-story sloping roof, which adopts the following technical solution:

[0006] A construction method for a foundation pad for a multi-layer sloping roof includes the following construction steps:

[0007] S1: Construction preparation: Based on the thickness and inclination angle of the upper sloping roof, the model of the support poles used, and the specifications of the formwork, design the upper sloping roof formwork support system, and determine the longitudinal and transverse spacing of the poles, the step distance, the arrangement of the scissor braces, the thickness of the formwork, and the specifications of the main and secondary ribs and the foundation pad.

[0008] S2: Lower sloping roof concrete pouring: After the lower sloping roof concrete support system is erected, the lower sloping roof concrete is poured and cured.

[0009] S3: Foundation plate installation: The foundation plate includes a bottom foundation plate, which is installed on both sides of the ridge line. The bottom foundation plate is provided with an installation base for the support system of the upper sloping roof formwork.

[0010] S4: Install the upper sloping roof support system: After the foundation pads are installed and accepted, install the support system for supporting the upper sloping roof formwork symmetrically on both sides of the ridge line of the sloping roof.

[0011] S5: Install the upper sloping roof formwork system: After the upper sloping roof formwork support system has passed inspection, lay the upper sloping roof formwork on it.

[0012] S6: Pouring the upper sloping roof concrete: After the upper sloping roof formwork system has passed the acceptance inspection, concrete is poured symmetrically on both sides of the ridge line of the sloping roof from low to high. After the pouring is completed, curing is strengthened.

[0013] S7: Removal: After the pouring is completed, remove the upper sloping roof formwork system, the upper sloping roof support system, and the foundation pad.

[0014] Optionally, multiple sets of bottom foundation pads are provided, and the multiple sets of bottom foundation pads are symmetrically arranged on both sides of the ridge line. Each set of bottom foundation pads includes a longitudinal pad base, a transverse support, and a vertical pole fixing seat. Multiple longitudinal pad bases are spaced apart along the ridge line. The transverse support is used to laterally fix adjacent longitudinal pad bases, and the vertical pole fixing seat is used to fix the support poles of the upper sloping roof.

[0015] Optionally, the longitudinal pad base is laterally supported on both sides by transverse support members, and the upper part of the longitudinal pad base is fixed with vertical upright fixing seats arranged at certain intervals. The upper end of the longitudinal pad base is provided with a connecting part for connection with the connector.

[0016] Optionally, the vertical pole fixing seats are spaced apart and aligned with the upper sloping roof support poles.

[0017] Optionally, a bottom support is provided at the lower end of the bottom foundation pad, and the bottom support is provided with a support rod that supports the ground. The bottom support restricts the movement of the bottom foundation pad along the roof tilt direction through the support rod.

[0018] Optionally, the upper sloping roof support system includes vertical uprights, horizontal crossbars, diagonal braces, top supports, main joists, and secondary joists installed in sequence. The horizontal crossbars are used to limit the lateral displacement of the vertical uprights. The top supports are installed on the vertical uprights, the main joists are installed on the top supports, the secondary joists are installed on the main joists, and the upper sloping roof formwork is laid on the secondary joists.

[0019] Optionally, the foundation pad also includes connectors, which are installed at certain intervals on the ridge line of the lower sloping roof and fix the bottom foundation pad pieces on both sides of the ridge line to each other.

[0020] Optionally, the vertical pole fixing seat is fixed to the longitudinal pad base by welding or mechanical structure.

[0021] Optionally, a fixing groove adapted to the transverse support is provided on the side wall of the longitudinal pad base. The transverse support is snapped into the fixing groove. A connecting hole communicating with the fixing groove is provided on the vertical pole fixing seat. The vertical pole passes through the connecting hole and abuts against the longitudinal pad base.

[0022] Optionally, the bottom of the longitudinal pad base and the transverse support is provided with anti-slip components to increase friction with the underlying sloping roof concrete.

[0023] In summary, the present invention has at least one of the following beneficial technical effects:

[0024] 1. A foundation pad used at the bottom of the support system uprights during the construction of multi-story sloping roofs, so that the support system can be stably and reliably supported on the upper part of the lower sloping roof panel, ensuring that the vertical uprights reliably transmit the vertical force to the sloping roof, and finally the lower sloping roof support system gradually transmits it to the foundation;

[0025] 2. This construction method solves the current practice of pre-embedding short steel bars in the lower sloping roof as the bottom of the uprights, thus avoiding damage to the sloping roof structure and the waterproof layer;

[0026] 3. This method is simple, reasonable, safe, reliable, easy to operate, and low in cost. It can overcome safety hazards, is conducive to safe production and civilized construction, and has strong practicality. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present invention;

[0028] Figure 2 This is a simplified diagram of the base plate according to an embodiment of the present invention;

[0029] Figure 3 This is an overall structural diagram of the bottom foundation pad sheet according to an embodiment of the present invention.

[0030] Explanation of reference numerals in the attached drawings: 1. Lower sloping roof; 2. Upper sloping roof; 3. Support system; 4. Foundation pad; 41. Bottom foundation pad; 411. Longitudinal pad base; 412. Transverse support; 413. Vertical pole fixing seat; 414. Bottom support seat; 42. Connector; 5. Diagonal pole fixing seat. Detailed Implementation

[0031] The following is in conjunction with the appendix Figure 1-3 The present invention will be described in further detail below.

[0032] This invention discloses a construction method for a foundation pad for a multi-layered sloping roof.

[0033] Reference Figure 1 , Figure 2 , Figure 3 A construction method for a multi-layer sloping roof foundation pad 4 includes the following construction steps:

[0034] S1: Construction preparation: Based on the thickness of the sloping roof, the angle of inclination, the model of the support poles used, and the specifications of the formwork, design the upper sloping roof 2 formwork support system 3, and determine the longitudinal and transverse spacing of the poles, the step distance, the arrangement of the scissor braces, the thickness of the formwork, and the specifications of the main and secondary ribs and the foundation pad 4.

[0035] S2: Concrete pouring for the lower sloping roof 1: After the concrete support system 3 for the lower sloping roof 1 is erected, concrete pouring and curing of the lower sloping roof 1 will be carried out.

[0036] S3: Installation of foundation pad 4: The foundation pad 4 includes a bottom foundation pad plate 41, which is installed on both sides of the ridge line. The bottom foundation pad plate 41 is provided with an installation base for the support system 3 for providing the upper sloping roof 2 template.

[0037] S4: Install the upper sloping roof 2 support system 3: After the foundation pad 4 is installed and accepted, install the support system 3 symmetrically on both sides of the ridge line of the sloping roof to support the upper sloping roof 2 formwork.

[0038] S5: Install the upper sloping roof 2 formwork system: After the support system 3 of the upper sloping roof 2 formwork has passed the acceptance test, lay the upper sloping roof 2 formwork on it.

[0039] S6: Pouring concrete for the upper sloping roof 2: After the formwork system for the upper sloping roof 2 has passed inspection, concrete is poured symmetrically from low to high on both sides of the ridge line of the sloping roof. After pouring, curing is strengthened.

[0040] S7: Demolition: After the pouring is completed, remove the upper sloping roof 2 formwork system, upper sloping roof 2 support system 3 and foundation pad 4.

[0041] When the concrete of the lower sloping roof 1 is poured and cured to 80% of its design strength, the foundation pad 4 is installed on the lower sloping roof 1 to provide an installation foundation for the support system 3 of the upper sloping roof 2. This allows the support system 3 to be stably and reliably supported on the upper part of the lower sloping roof 1 panel, ensuring that the vertical poles of the support system 3 reliably transfer the vertical force to the sloping roof. Finally, the force is gradually transferred from the lower sloping roof 1 support system 3 to the ground foundation. This method solves the problem of erecting the support system 3 on the upper part of the sloping roof and eliminates the current practice of pre-embedding short steel bars on the lower sloping roof 1 as the bottom of the poles. It avoids damaging the sloping roof structure and the waterproof layer. This method is simple, reasonable, safe, reliable, easy to operate, and low in cost. It can overcome safety hazards and is conducive to safe production and civilized construction, making it highly practical.

[0042] In this embodiment, when supporting the double-sloped roof, the foundation pad 4 includes a bottom foundation pad plate 41 and a connector 42. Two sets of bottom foundation pad plates 41 are symmetrically arranged on both sides of the ridge line. In this embodiment, each set of bottom foundation pad plates 41 includes a longitudinal pad base 411, a transverse support member 412, and a vertical pole fixing seat 413. Multiple longitudinal pad bases 411 are spaced apart along the ridge line, the interval being the spacing between the support system poles of the upper sloping roof 2 along the ridge line. The transverse support member 412 is used to laterally fix adjacent longitudinal pad bases 411, and the vertical pole fixing seat 413 is used to fix the support poles of the upper sloping roof 2. The vertical pole fixing seats 413 are spaced apart and aligned with the support poles of the upper sloping roof 2. The number of vertical pole fixing seats 413 is greater than or equal to the number of support poles of the upper sloping roof 2.

[0043] The longitudinal pad base 411 is laterally supported on both sides by transverse support members 412. The upper part of the longitudinal pad base 411 is fixed with vertical pole fixing seats 413 arranged at certain intervals. The upper end of the longitudinal pad base 411 is provided with a connecting part that connects to the connector 42.

[0044] When the lengths of the bottom foundation pads 41 on both sides are different along the roof inclination direction, a bottom support 414 is provided at the lower end of the bottom foundation pad 41. The bottom support 414 is provided with support rods that support the ground. The bottom support 414 restricts the movement of the bottom foundation pad 41 along the roof inclination direction through the support rods. The bottom support 414 can effectively transmit horizontal and vertical thrust to ensure the safety and reliability of the foundation pad 4.

[0045] The upper sloping roof 2 support system 3 includes vertical uprights, horizontal crossbars, diagonal braces, top supports, main joists, and secondary joists installed in sequence. The horizontal crossbars are used to limit the lateral displacement of the vertical uprights. The top supports are set on the vertical uprights, the main joists are set on the top supports, the secondary joists are set on the main joists, and the upper sloping roof 2 formwork is laid on the secondary joists.

[0046] Connectors 42 are installed at certain intervals on the ridge line of the lower sloping roof 1, and the bottom foundation pads 41 on both sides of the ridge line are fixedly connected to each other. The horizontal thrust of the foundation pad 4 system on both sides of the ridge line of the sloping roof can be partially canceled out, and it does not affect the reliable contact between the bottom foundation pads 41 and the upper part of the sloping roof panel, thereby improving the stability of the support effect of the foundation pad 4 and ensuring the safety and reliability of the foundation pad 4.

[0047] The connector 42 is made of steel or aluminum alloy profile. The included angle of the connector 42 is the same as the included angle at the ridge of the sloping roof. The connector 42 has a pre-drilled mounting hole for connecting with the bottom foundation pad plate 41. The connector 42 is fixedly connected to the bottom foundation pad plate 41 by bolts.

[0048] The longitudinal pad base and the bottom of the transverse support are equipped with anti-slip components to increase friction with the underlying sloping roof concrete. In this embodiment, the anti-slip components are rubber pads. The rubber pads are laid flat on the bottom of the longitudinal pad base and the transverse support.

[0049] In other embodiments, when supporting a single-sided sloping roof, the base plate 4 includes a bottom base plate 41, a bottom support seat 414 disposed at the lower end of the bottom base plate 41, and a support rod supported on the ground. The support system of the upper sloping roof 2 is supported on the lower sloping roof by the bottom base plate 41, the bottom support seat 414, and the support rod.

[0050] The above are all preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made in accordance with the structure, shape and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A construction method for a foundation pad for a multi-layer sloping roof, characterized in that: The construction steps include the following: S1: Construction preparation: Based on the thickness, tilt angle, model of the support poles, and template specifications of the upper sloping roof (2), design the template support system (3) for the upper sloping roof (2), and determine the longitudinal and transverse spacing of the poles, step distance, arrangement of the scissor braces, thickness of the template, and specifications of the main and secondary ribs and foundation pads (4). S2: Lower sloping roof (1) concrete pouring: After the lower sloping roof (1) concrete support system (3) is erected, the lower sloping roof (1) concrete pouring and curing are carried out. S3: Foundation pad (4) installation: The foundation pad (4) includes a bottom foundation pad plate (41), which is installed on both sides of the ridge line. The bottom foundation pad plate (41) is provided with an installation base for the support system (3) for providing the upper sloping roof (2) template. S4: Install the upper sloping roof (2) support system (3): After the foundation pad (4) is installed and accepted, install the support system (3) symmetrically on both sides of the ridge line of the sloping roof to support the upper sloping roof (2) template. S5: Install the upper sloping roof (2) formwork system: After the upper sloping roof (2) formwork support system (3) has passed the acceptance test, lay the upper sloping roof (2) formwork on it; S6: Pouring concrete for the upper sloping roof (2): After the formwork system of the upper sloping roof (2) is accepted, concrete is poured symmetrically from low to high on both sides of the ridge line of the sloping roof. After pouring, the curing is strengthened. S7: Demolition: After the pouring is completed, remove the upper sloping roof (2) formwork system, upper sloping roof (2) support system (3) and foundation pad (4); Multiple sets of bottom foundation pads (41) are provided. Multiple sets of bottom foundation pads (41) are symmetrically arranged on both sides of the ridge line. Each set of bottom foundation pads (41) includes a longitudinal pad base (411), a transverse support (412), and a vertical pole fixing seat (413). Multiple longitudinal pad bases (411) are spaced apart along the ridge line. The transverse support (412) is used to fix the adjacent longitudinal pad bases (411) laterally. The vertical pole fixing seat (413) is used to fix the support poles of the upper sloping roof (2). The longitudinal pad base (411) is laterally supported on both sides by transverse support members (412). The upper part of the longitudinal pad base (411) is fixed with vertical pole fixing seats (413) arranged at certain intervals. The upper end of the longitudinal pad base (411) is provided with a connecting part that connects to the connector (42). Vertical pole fixing seats (413) are spaced apart and aligned with the upper sloping roof (2) support poles, and the number of vertical pole fixing seats (413) is greater than or equal to the number of upper sloping roof (2) support poles; The bottom of the bottom foundation pad (41) is provided with a bottom support seat (414), and the bottom support seat (414) is provided with a support rod that supports the ground. The bottom support seat (414) restricts the movement of the bottom foundation pad (41) along the roof tilt direction through the support rod.

2. The construction method for foundation pad of multi-story sloping roof according to claim 1, characterized in that: The upper sloping roof (2) support system (3) includes vertical poles, horizontal bars, diagonal bars, top supports, main joists and secondary joists installed in sequence. The horizontal bars are used to limit the lateral displacement of the vertical poles. The top supports are set on the vertical poles, the main joists are set on the top supports, the secondary joists are set on the main joists, and the upper sloping roof (2) template is laid on the secondary joists.

3. The construction method for foundation pads of multi-story sloping roofs according to claim 1, characterized in that: The base plate (4) also includes connectors (42), which are installed at certain intervals on the ridge line of the lower sloping roof (1) and fix the bottom base plate pieces (41) on both sides of the ridge line to each other.

4. The construction method for foundation pads of multi-story sloping roofs according to claim 3, characterized in that: The connector (42) is made of steel or aluminum alloy profile. The included angle of the connector (42) is the same as the included angle at the ridge of the sloping roof. The connector (42) has a reserved mounting hole for connecting with the bottom base plate (41).

5. The construction method for foundation pads of multi-story sloping roofs according to claim 1, characterized in that: The vertical pole fixing seat (413) is fixed to the longitudinal pad base (411) by welding or mechanical structure.

6. The construction method for foundation pads of multi-story sloping roofs according to claim 1, characterized in that: The bottom of the longitudinal pad base (411) and the transverse support (412) are provided with anti-slip components to increase the friction with the lower sloping roof concrete.

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