CN106401087A - Latticed soft roof covering system and fixing method for roof greening - Google Patents

Abstract

The grid-like soft roof covering system and fixing method for roof greening of the present invention belong to the roof greening transformation technology of existing buildings, and are a fixing device for installing potted green plants on the roof of existing buildings. The present invention can be applied to existing buildings with different roof forms. Through convenient on-site assembly and construction, it provides a roof greening method that does not damage existing building roofs, increases the green area, assists in the construction of sponge cities, and improves the quality of people's living environment. Fixing device for effective fixing of green roof gutters. For the promotion of greening on the roof of existing buildings, it will be a low cost, convenient construction, fast construction speed and safe structure fixing method.

Description

Grid-shaped soft roof covering system and fixing method for roof greening

technical field

The invention belongs to the technical field of roof greening.

The present invention relates to the prior priority of citing, the prior application for utility models in China: patent name "roof greening fixing device for existing sloping roof buildings", patent application number 2016206469811, application date June 27, 2016.

Background technique

As the pace of urban construction is accelerating, urban land is decreasing day by day, and the green area of urban ground is becoming increasingly tense. In addition, the urban environment is deteriorating day by day, and people's demand for good air environment quality is becoming increasingly urgent. The original green environment has been difficult to meet people's needs, which requires us to carry out secondary greening in the existing state as much as possible. Planting green plants on the roof of existing buildings is a better urban renewal model.

In the field of roof greening, the construction of roof greening needs to solve a series of problems such as roof load bearing, waterproofing, greening construction and maintenance. Therefore, the current domestic implementation is mainly to combine new or rebuilt buildings with roof greening that integrates the design of building roofs and greening. A large number of technical research and development are carried out for this construction requirement. However, for the huge number of existing buildings in the city, limited by the harsh load-bearing conditions of the roof, the preservation requirements of the original waterproof layer, and the various constraints of greening construction and maintenance, only the simple and low-maintenance method can be used. Planting roofs, especially modular planting troughs for easy construction.

If the existing building has a flat roof with a low floor, it is currently possible to lay modular planting grooves directly on the roof without reinforcement. However, if the floor is high, especially the sloped roof, the planting groove needs to be fixed. The main technical bottleneck lies in how the installation and reinforcement of the planting groove can flexibly match different roof shapes, especially sloped roofs with different slopes, and Make sure not to damage the original roof waterproofing layer.

Contents of the invention

In order to overcome the deficiencies in the prior art, one of the objectives of the present invention provides a prior priority technical solution, which is characterized by:

A green roof fixing device for an existing sloping roof building, characterized in that it is designed as a grid-shaped roof covering to fix the green roof planting groove; it specifically includes a cable, a pad bonded to the roof ridge, and a number of fixed ends Components; various fixed components are installed at the eaves; the cables include several main cables, several secondary cables and some obliquely-stayed cables, each main cable is routed along the slope direction of the roof, and both ends are tightened and tied to the fixed components on the eaves Above; fix the secondary cables equidistantly on the main cable to form a grid with the same size as the planting groove; place the planting groove in the grid, and the planting groove is in contact with the roof; at the connection between the main cable and the secondary cable Install the stay ropes crosswise.

The fixing member is the eave buckle or the expansion bolt with a ring. When the object is a double-slope roof, the eaves buckles can be used to fix the cables on both sides of the eaves; when the object is a single-slope roof or the eaves buckle is not suitable for installation, the expansion bolts with rings can be used instead of the eaves buckles to fix the cables.

For further optimization, pre-cast concrete blocks are placed on the ridge of the sloping roof as the ridge pad for the main cable. The surface of the ridge pad is grooved along the slope direction of the roof. The main cable is along the slope direction of the roof, and the middle section is embedded in concrete. The blocks are grooved and tied taut at both ends to the fixed members of the eaves.

The second object of the present invention is to overcome the deficiencies in the prior art, and propose a grid-shaped soft roof covering system and fixing method for roof greening for the first time, which can be used for greening on existing building roofs, greatly increasing the greening area of the city, and creating a new environment for the city. The development provides a convenient and quick way of air purification and rainwater absorption. The technical solution of the present invention is characterized by:

A grid-like soft roof covering system for roof greening, characterized in that, by designing a "quilt-style" grid-like soft roof covering system for roof greening, it can flexibly match different roof forms; The raised support member can provide multiple fulcrums in the system at the same time; the fixed member at the edge of the covering system is used to provide the attachment fulcrum at the edge of the system; the covering system has a grid structure inside to fix the roof greening planting Groove (6 in the figure), and do not damage the existing structural layers such as the roof waterproof layer.

The covering system includes a cable system, a raised support member and a fixed member at the end (5 in the figure); the raised support member can be realized by using a prefabricated pad (4 in the figure), wherein:

The cable system includes several overhead main cables (1 in the figure), several secondary cables (2 in the figure) and several stay cables (3 in the figure), and its material can be rigid or not significantly deformed under tension. Plastic materials or their mixture; each main cable is routed along the slope direction of the roof, and the spacing is in accordance with the size of the planting groove, and the two ends are tightened and fixed on the fixed member at the end (such as the eaves); fix the secondary cable on the main cable (preferably Design: fix the secondary cables equidistantly on the main cable) to form a grid with the same size as the planting groove; place the planting groove in the grid, and the planting groove is in contact with the roof; the connection between the main cable and the secondary cable Then cross-install stay cables to press the planting trough on the roof.

The fixed member at the end (5 in the figure) can be the eaves buckle or the expansion bolt with a ring, etc., which are used for overhead and fixing the cables: when the object is a double-slope roof or a single-slope roof with eaves, the eaves can be used at the eaves The buckle fixes the cable. For the sake of aesthetics, the buckle can be integrated with the rain gutter of the eaves; when the object is a sloping roof connected to the vertical wall on one side or other unsuitable installation of the eave buckle, it can be used on the vertical wall Place expansion bolts with rings on the surface to replace the eaves buckles to fix the cables.

Elevation support members (preferable design: prefabricated) are used for overhead, anchoring cables and distributing the pressure of the system on the roof.

For further optimization, place a support component at the ridge of the pitched roof (4 in the figure, which is a pre-cast concrete block with grooves along the slope direction of the roof, or a pre-processed stainless steel or aluminum component, etc.) , to elevate, fix the main cables and disperse the concentrated pressure on the roof ridge.

For further optimization, if the roof has a large span or a specific form, the support members can be densely raised along the direction of the cables on the roof to further assist the overhead, fix the cable system and disperse the concentrated pressure on the roof ridge.

For further optimization, if the existing roof is a warped slope roof, a coupling (7 in the figure) should be installed at the junction of the cables, which can effectively fix the ends of the cables and allow the entire cable to be deformed in sections. For the structural parts, the whole system can be fitted to the warping shape of the roof with the help of the self-weight of the planting tank, and the specific design should be carried out according to the warping of the roof and the size of the cables.

The system design principle of the present invention: through the deformable structural design, the entire grid-like roof covering system can fit different slopes or even warped roof shapes, and flexibly match various constant-slope or variable-slope roofs. The design of the overall force bearing system makes full use of the composition conditions of the roof of the existing building, the gravity of the planting tank itself and the friction with the roof, and reduces and disperses the actual force strength of each part of the entire fixture system with the help of its own mechanical balance , so that a cable with a certain strength can be used to bear the sliding force of the planting groove parallel to the slope of the roof plane by tensioning, and fixed by a buckle device, so that the whole device does not need to destroy the waterproof structure layer of the existing roof, but also bears The wind suction generated by the roof wind load ensures the safety of roof greening.

Beneficial effects and significance of the technology of the present invention: it is expected to play the role of the following aspects in urban development: (1) there are more old-fashioned houses without roof gardens in the city, and the new load that the present invention carries out roof greening is less , can basically be implemented on the roofs of these houses; (2) if the existing buildings are flat roofs, the greening provided by the present invention will be easier to implement; (3) in big cities such as Shanghai, in the early years, existing buildings implemented sloping roof transformation, and it has basically reached the maintenance period so far, and this opportunity can be fully utilized to carry out roof greening; (4) the technology of the present invention The roof greening provides a certain water storage capacity, which is completely in line with the development idea of the sponge city promoted by the state.

Description of drawings

Figure 1 is a schematic diagram of the stress of the planting grooves, ridge components, and cornice components of the double-slope roof.

Fig. 2 is the top view (construction plane) of embodiment 1 (small-span equal slope roof).

Fig. 3 is the sectional view of Fig. 2 at I-I place.

Fig. 4 is step 1 in the installation steps diagram: place the ridge prefabricated parts, and install the eave buckle (a separate buckle).

Figure 5 shows step 2 in the installation steps diagram: install the main cable and tighten it to fix it.

Fig. 6 is the third step in the installation steps diagram: install the secondary cable and place the planting groove.

Fig. 7 is step 4 in the installation steps diagram: installing stay cables and fixing the planting groove.

Fig. 8 is a schematic structural diagram of the connecting piece 7 at the intersection of the cables in Embodiment 2 (warping roof with small span and one-way variable slope).

Fig. 9 is a schematic diagram of Embodiment 2 (warping roof with small span and one-way variable slope).

detailed description

The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and embodiments.

Embodiment 1 (Small-span Equal Slope Roof)

As shown in Figure 2-Figure 7, the construction implementation process:

Firstly, according to the size of the roof greening planting groove, the layout scheme of the roof greening is given.

Place the prefabricated part 4 (this example is the pre-casting of concrete, the prefabricated part 4) that fits the ridge at the ridge of the pitched roof according to the roof greening layout plan, and install the buckle at the eaves (the present embodiment 1 is a detachable buckle, It needs to be aligned with the position of the planting slot).

The main cable 1 is along the slope direction of the roof, the middle section is embedded in the ridge prefabricated part 4, and the two ends are tightened and fixed on the fixed component 5 (eave buckle). The height of the tank is adjusted, it is recommended to be slightly lower than the height of the planting tank. The fixing member 5 at the end of the cable is a separate buckle in this embodiment. After being snapped into the eaves, it can be pressed and fixed with accessories such as bolts.

Fix the secondary stay cables 2 equidistantly on the main stay cables 1 to form a grid consistent with the size of the planting groove. The planting groove 6 is placed in the grid, the planting groove 6 is in contact with the roof, and the frictional force generated between the roof greening planting groove and the roof plane can reduce the sliding force of the planting groove.

Finally, a group of stay cables 3 are cross-installed at the junction of the main stay cables 1 and the secondary stay cables 2 to further fix the planting groove 6 and improve the safety of the whole device.

Example 2 (Small-span, warped roof with one-way variable slope)

The difference between the construction method and steps and that of Example 1 is that the installation of the main cable 1 requires cutting several main cables according to the size of the planting groove, and connecting the main cables with the connecting piece 7 at the junction of the cables according to the total length of the roof slope direction. Cable segment;

If the roof is a two-way variable slope, then the secondary cable 2 also needs to be cut in sections and connected to the coupling member 7 in the vertical direction of the main cable.

The connecting piece 7 is shown in Figure 8 and Figure 9: this embodiment is a one-way warping roof, only the main cable needs to be connected, so a bolt compression type connecting piece is used, and two bolts 71 are used to fasten the two. Sheet compression sheet 72, after dragline passes bolt from the middle of compression sheet up and down, by tightening bolt, compression sheet is pressed stay cable and prevents from slipping.

Above two embodiments, whole system design is reasonable, scientific, feasible, and the stressed analysis of key point is as shown in Figure 1, wherein:

The friction force between the planting groove and the roof can partially offset its sliding force (Fig. 1-a); the sliding force of the planting groove on the double slope can also be offset by the tension balance of the main cable (Fig. 1-b);

The prefabricated cushion on the ridge can disperse the downforce of the main cables and reduce the pressure on the ridge (Fig. 1‐b);

The fastening screw of the fixing member at the end of the cable can provide a variable frictional force in response to the actual stress of the entire system at the end, and together with the tension of the main cable, the end can be fixed (Fig. 1-c).

Regardless of whether the cables are made of rigid or plastic materials with insignificant tensile deformation or rigid and plastic hybrid materials, they will not affect the flexible deformation of the entire grid-like soft roof covering and the performance of matching different roof forms; the main and secondary tension The network formed by cable connection can be completed at the construction site, or it can be pre-connected at the factory according to the actual design plan, and then installed and fixed at the construction site.

Claims (7)

1. A grid-shaped soft roof fixing device for roof greening, characterized in that, by designing a "quilt-type" grid-like soft roof covering system for roof greening, it is used to flexibly match different roof forms; The system is equipped with elevated support members to provide multiple fulcrums in the system; the fixed members are set at the edge of the covering system to provide attachment fulcrums at the edge of the system; the covering system is equipped with a grid structure inside, which is beneficial to the greening of the roof. The planter is fixed. 2. The system according to claim 1, characterized in that, the specific structural design of the covering system is as follows: comprising a cable system, a raised support member and a fixed member at the end; the raised support member is realized by using a prefabricated pad ,in: The cable system includes several overhead main cables, several secondary cables and several oblique cables; each main cable is routed along the slope direction of the roof, and the spacing is in accordance with the size of the planting groove, and the two ends are tightened and fixed at the end to fix the member Above; fix the secondary cable on the main cable to form a grid with the same size as the planting groove; place the planting groove in the grid, and the planting groove is in contact with the roof; cross again at the connection between the main cable and the secondary cable Install the stay cables to press the planting grooves tightly on the roof. 3. The system according to claim 2, wherein the fixing member at the end is used for overhead and fixing the cables: when the object is a double-slope roof or a single-slope roof with eaves, the eaves are all fixed with eave buckles Cable; when the object is a sloping roof connected to the vertical wall on one side or other unsuitable installation of the eave buckle, an expansion bolt with a ring is placed on the vertical wall instead of the eave buckle to fix the stay cable. 4. The system according to claim 2, characterized in that, the raised supporting member is used for elevating, fixing the cables and dispersing the pressure of the system on the roof: placing the raised supporting member at the ridge of the pitched roof for raising and fixing The main cables can disperse the concentrated pressure on the roof ridge; when the roof span is large or the form is specific, the support members will be densely raised along the direction of the cables on the roof to further assist the overhead, fix the cable system and disperse the roof ridge. concentrated pressure. 5. The system according to claim 2, characterized in that, if the existing roof is a warped slope roof, a connecting piece 7 should be installed at the junction of the cables, so that the ends of the cables can be effectively fixed to make the whole The connected structural member that the cable can be deformed in sections can make the whole system fit the warping shape of the roof with the help of the self-weight of the planting groove. 6. The system according to claim 2, wherein the secondary cables are equidistantly fixed on the primary cables to form a grid consistent with the size of the planting groove. 7. A roof greening fixing device for an existing sloping roof building, characterized in that it is designed as a grid-like roof covering to fix the roof greening planting groove; it specifically includes a cable, a pad bonded to the ridge and a number of ends each fixed member is installed at the eaves position; the stay cables include several main stay cables, several stay stay cables and some oblique stay ropes, and each main stay cable is routed along the slope direction of the roof, and both ends are tightened and tied to the eaves on the fixed member; fix the secondary cables equidistantly on the main cables to form a grid with the same size as the planting groove; place the planting grooves in the grid, and the planting grooves are in contact with the roof; The cable-stayed ropes are cross-installed at the joints.