CN108396913A - A kind of rear-loading type GRC eave structures and its construction method - Google Patents
A kind of rear-loading type GRC eave structures and its construction method Download PDFInfo
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- CN108396913A CN108396913A CN201810394373.XA CN201810394373A CN108396913A CN 108396913 A CN108396913 A CN 108396913A CN 201810394373 A CN201810394373 A CN 201810394373A CN 108396913 A CN108396913 A CN 108396913A
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- grc
- cornice
- keel
- roofing
- eaves
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- 238000010276 construction Methods 0.000 title claims abstract description 36
- 238000005034 decoration Methods 0.000 claims abstract description 45
- 238000009434 installation Methods 0.000 claims description 13
- 239000012530 fluid Substances 0.000 claims description 11
- 239000000565 sealant Substances 0.000 claims description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 239000002994 raw material Substances 0.000 claims description 3
- 229910000746 Structural steel Inorganic materials 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 210000000988 bone and bone Anatomy 0.000 description 4
- 238000005452 bending Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 2
- 210000001520 comb Anatomy 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011383 glass concrete Substances 0.000 description 1
- 239000011211 glass fiber reinforced concrete Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D13/00—Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage; Sky-lights
- E04D13/15—Trimming strips; Edge strips; Fascias; Expansion joints for roofs
- E04D13/158—Trimming strips; Edge strips; Fascias; Expansion joints for roofs covering the overhang at the eave side, e.g. soffits, or the verge of saddle roofs
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D13/00—Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage; Sky-lights
- E04D13/04—Roof drainage; Drainage fittings in flat roofs, balconies or the like
- E04D13/0404—Drainage on the roof surface
- E04D13/0459—Drainage borders, e.g. dripping edges, gravel stops or dispersers
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D13/00—Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage; Sky-lights
- E04D13/04—Roof drainage; Drainage fittings in flat roofs, balconies or the like
- E04D13/0404—Drainage on the roof surface
- E04D13/0459—Drainage borders, e.g. dripping edges, gravel stops or dispersers
- E04D2013/0463—Dispersers
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D13/00—Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage; Sky-lights
- E04D13/04—Roof drainage; Drainage fittings in flat roofs, balconies or the like
- E04D13/0404—Drainage on the roof surface
- E04D13/0459—Drainage borders, e.g. dripping edges, gravel stops or dispersers
- E04D2013/0468—Drip edges
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D13/00—Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage; Sky-lights
- E04D13/04—Roof drainage; Drainage fittings in flat roofs, balconies or the like
- E04D13/0404—Drainage on the roof surface
- E04D13/0459—Drainage borders, e.g. dripping edges, gravel stops or dispersers
- E04D2013/0472—Gravel stops
Abstract
A kind of rear-loading type GRC eave structures and its construction method, rear-loading type GRC eave structures include wall, roofing overhanging reversed beam, roof decorations structure, eaves gutter, cornice keel, apron flashing, switching keel, eaves gutter bracket and GRC eaves boards；Cornice keel include cornice main joist and cornice secondary joist；Apron flashing includes first segment apron flashing and second segment apron flashing；Switching keel are connected to the bottom of outside cornice secondary joist；It is connected with bracket adapter on the outside of switching keel；The cross section of GRC eaves boards is in horizontally-arranged S-shaped, including horizontal plane, top vertical face and lower part vertical face；Horizontal plane is located at switching keel bottoms；Top vertical face is located on the outside of switching keel, is bolted with switching keel；Lower part vertical face is located at wall outer side, is fixedly connected with wall.The present invention solves the technical issues of traditional construction method can not carry out the construction of GRC cornice components after the completion of outer wall surfacing and roof decorations structure construction and cannot be satisfied construction period.
Description
Technical field
The present invention relates to building engineering field, especially a kind of rear-loading type GRC eave structures and its construction method.
Background technology
When traditional construction, the exterior decoration working procedure with pitched roof is generally：Wall face finishing → GRC cornice components peace
The sequence of dress → roofing finishing carries out successively.When wall face is fitted up larger with roofing fitting-out work amount, and effective duration is shorter
When, it cannot be satisfied construction period according to conventional processes.
Invention content
The object of the present invention is to provide a kind of rear-loading type GRC eave structures and its construction method, to solve to work as effective duration
When shorter, traditional construction method can not carry out GRC cornice components after the completion of outer wall surfacing and roof decorations structure construction
Construction and the technical issues of cannot be satisfied construction period.
To achieve the above object, the present invention adopts the following technical scheme that.
A kind of rear-loading type GRC eave structures include wall, roofing overhanging reversed beam, roof decorations structure and are arranged in room
The eaves gutter of the outer obliquely downward of face decorating structure；Rear-loading type GRC eave structures further include have cornice keel, apron flashing, switching keel,
Eaves gutter bracket and GRC eaves boards；
The cornice keel include cornice main joist and cornice secondary joist；The cornice main joist has one group, longitudinally parallel
Interval setting；Wherein every cornice main joist each parallel to roof decorations structure inclined direction and be arranged in roof decorations knot
The bottom of structure；The inner end of the cornice main joist is connect with roofing overhanging reversed beam, outer end and the roof decorations knot of cornice main joist
There are spacing between structure outer edge；The cornice secondary joist is connected between the inner end of one group of cornice main joist and one group of cornice master
Between the outer end of keel；The apron flashing includes first segment apron flashing and second segment apron flashing；First segment apron flashing edge
Longitudinal elongated top for being laid on cornice keel；Wherein the inner side edge of first segment apron flashing is connect with roofing overhanging reversed beam, and first
The outer end of section apron flashing is located at cornice keel outer end position；The second segment apron flashing elongated arrangement along longitudinal direction；Wherein,
The inner end of second segment apron flashing is tightly attached to the bottom of first segment apron flashing outer end, and the outer end of second segment apron flashing exceeds roof decorations
It structure outer edge and extends in eaves gutter；The switching keel have one group, it is longitudinally parallel interval be connected to outside cornice main joist
The bottom of the cornice secondary joist at end；It is connected with bracket adapter on the outside of switching keel；The eaves gutter bracket is connected horizontally on
On bracket adapter；
The cross section of the GRC eaves boards is in horizontally-arranged S-shaped, include horizontal plane, the top that is connected on the outside of horizontal plane it is vertical
Face and the lower part vertical face being connected on the inside of horizontal plane；Wherein, horizontal plane is located at the bottom of switching keel；Top vertical face is located at
The outside of switching keel, and be bolted with switching keel；Lower part vertical face is located at wall outer side, and is fixedly connected with wall.
Preferably, the roof decorations structure includes roofing main joist, roofing secondary joist and roofing tile；The roofing master
Keel have one group, the setting of longitudinally parallel interval, and one group of roofing main joist is corresponding with one group of cornice main joist；The room
Face secondary joist has one group, and the top of roofing main joist is connected to along the inclined direction parallel interval of roof decorations structure；Wherein position
It is maximum in the height of outermost roofing secondary joist；The roofing tile is laid on the top of roofing secondary joist.
Preferably, the outside of the roof decorations structure, continuous at position between roofing tile and second segment apron flashing
Equipped with double-edged fine-toothed comb.
Preferably, the lateral surface of the roofing overhanging reversed beam is equipped with buried plate；It is welded between the cornice main joist and buried plate
It connects in succession.
Preferably, when the cantilever span of cornice main joist is more than 400mm, overhang in the bottom of cornice main joist and roofing
Diagonal brace is equipped between reversed beam.
Preferably, the switching keel are made of angle steel, and the lateral surface for keel of transferring and corresponding cornice secondary joist
Lateral surface it is concordant；The cross section of the bracket adapter is in inverted L-shaped, includes horizontal edge and to be connected to horizontal edge bottom end
Vertical edge；The vertical edge of wherein bracket adapter is connected on the lateral surface of switching keel, and the horizontal edge of bracket adapter extends to GRC
The surface of the top vertical face of eaves board；The eaves gutter bracket is connected horizontally on the top of bracket adapter along longitudinal direction；It is described
Eaves gutter is longitudinally connected in the outside of eaves gutter bracket.
Preferably, on the lateral surface of the wall, longitudinally spaced at corresponding GRC eaves board link positions to be equipped with one group of extension
Fitting；The lower part vertical face of the GRC eaves boards is connect with hanging part.
Preferably, the GRC eaves board unit spliceds that the GRC eaves boards are continuously arranged along longitudinal direction by one group form；It is described
Bright dress hole is provided in the top vertical face of GRC cornice plate units, and by wearing between GRC cornices plate unit and switching keel
Be located at that the bright bolt filled in hole connects；The back of the GRC cornices plate unit longitudinally spaced is provided with one group of ribs, phase
Fluid sealant is equipped at gap between adjacent GRC cornices plate unit to block.
A kind of construction method of rear-loading type GRC eave structures, including steps are as follows.
Step 1：After the wall face finishing and the construction of roofing keel that wait for wall, cornice main joist and cornice are installed
Keel.
Step 2：First segment apron flashing is installed：The inner end of first segment apron flashing is bent to form connection flange straight down；Its
In, connection flange is tightly attached on the lateral surface of roofing overhanging reversed beam；The plate face of first segment apron flashing passes through fastener and cornice
Keel connect.
Step 3：Roofing tile is installed.
Step 4：Installation switching keel：The longitudinally parallel interval of one group of switching keel is connected to cornice main joist outer end
Cornice secondary joist bottom；
Step 5：One group of hanging part of longitudinally spaced setting on the lateral surface of wall.
Step 6：Mounting bracket adapter：Bracket adapter is detachably connected on to the outside of switching keel.
Step 7：GRC eaves boards are installed：The GRC eaves boards are formed by one group of GRC eaves board unit spliced；Wherein,
The top vertical face of GRC eaves boards is provided with bright dress hole, top vertical face be located on the outside of switching keel and with switching keel bolt
It connects, the hanging part in the lower part vertical face of GRC eaves boards and the lateral surface of wall is correspondingly connected with.
Step 8：After after whole GRC cornices plate units, installation is complete, the bright dress hole on every piece of GRC cornice plate units top is adopted
It is blocked with its raw material, the gap between adjacent GRC cornices plate unit is blocked using fluid sealant and jointing.
Step 9：Eaves gutter is installed：Eaves gutter bracket and bracket adapter are detachably connected first, then eaves gutter is positioned over eaves
It is on ditch bracket and fixed.
Step 10：Second segment apron flashing is installed：The elongated laying along longitudinal direction of second segment apron flashing, and in second segment apron flashing
End is tightly attached to the outer end bottom of first segment apron flashing, is not less than 100mm with the first segment apron flashing lap of splice, and in overlap joint end
Position uses the elongated closure of fluid sealant.
Step 11：Double-edged fine-toothed comb is installed：In the outside of roof decorations structure, positioned at the meta position of roofing tile and second segment apron flashing
Place's installation double-edged fine-toothed comb is set, double-edged fine-toothed comb covers the gap between roofing tile and second segment apron flashing；So far construction finishes.
Preferably, in step 1 when the cantilever span of cornice main joist be more than 400mm when, the bottom of cornice main joist with
Diagonal brace is installed between roofing overhanging reversed beam；
When the back of GRC eaves boards to be installed, it is longitudinally spaced be provided with one group of ribs when, installation switching keel in step 4
When, the spacing of the ribs at spacing and GRC cornice bottom plates back between keel of transferring is adapted；
In step 5, spacing and the spacing of the ribs at GRC eaves boards back between adjacent hanging part are adapted.
Compared with prior art the invention has the characteristics that and advantageous effect.
1, anti-in roofing overhanging in the present invention after the completion of wall face of agent structure finishing and roofing keel structure are constructed
Cornice keel structure is installed, in the exterior bottom connection switching keel of cornice keel structure and in roofing keel structure on the outside of beam
In limited construction space between wall install GRC eaves boards, GRC eaves boards by one group of GRC eaves boards unit spliced and
At the top vertical face of each unit GRC eaves boards is provided with bright dress hole, and the cross-sectional design of GRC eaves boards is at horizontally-arranged
S-shaped；The top vertical edges of GRC eaves boards and switching keel are bolted again, the lower part vertical edges and wall of GRC eaves boards
It is fixedly connected, above-mentioned connection type fills the property grasped of GRC eaves boards after meeting simultaneously, the design of this structure is ensureing to apply
The appearance of structure stress safety and external decoration after installation is also met under the premise of work is operable.
2, first segment apron flashing and second segment apron flashing, first segment apron flashing are set at the top of cornice keel in the present invention
Outer end be positioned close at cornice keel outer end position；The inner end of second segment apron flashing is tightly attached to first segment apron flashing outer end
The outer end of bottom, second segment apron flashing beyond roof decorations structure outer edge and extends in eaves gutter；Wherein, second segment drapes over one's shoulders water
The position that plate corresponds at cornice keel outer side edges position is folded upward at, and roof decorations structure is close in the part on the outside of bending segment, and
Extend other than roof decorations structure；This segment design of apron flashing structure had both met the operability of construction, i.e. first segment
If apron flashing extends at eaves gutter, GRC eaves boards and eaves gutter can not be installed, therefore second segment apron flashing is in GRC eaves boards
And eaves gutter construction after installation is complete, and the collective effect that the water leak under roofing tile can be made to pass through two sections of apron flashings is guided to
In eaves gutter, waterproof effect is reached.
3, the dragon of the switching below cornice keel is connected to using eaves gutter bracket and bracket adapter in eaves gutter in the present invention
On bone, that is, eaves gutter force request is met, and GRC eaves boards are bonded with eaves gutter, make rainwater that can not flow into GRC eaves boards
It is interior.
4, continuously it is arranged at position in the outside of roof structure, between roofing tile and second segment apron flashing in the present invention
The design of double-edged fine-toothed comb, this structure prevents worm bird to enter in ventilation tile roofing, and ring is carried out brokenly to roof decorations structure.
5, construction method using the present invention, agent structure wall face finishing with roofing keel structure can simultaneously into
Row after the completion of outer wall surfacing and roofing keel structure are constructed, then carries out the construction of eave structure, by eave structure and construction
The structure of completion is attached, and this construction method is fitted up compared to traditional first construction outer wall face, then carries out GRC eave structures
Installation, then for carrying out the sequence of roofing finishing, saved the duration, solved in traditional construction, when effective duration is shorter,
The technical issues of cannot be satisfied construction period.
Description of the drawings
The present invention will be further described in detail below in conjunction with the accompanying drawings.
Fig. 1 is the structural schematic diagram of the present invention.
Fig. 2 is the cornice keel and roofing overhanging reversed beam, cornice keel and eaves gutter attachment structure schematic diagram of the present invention.
Fig. 3 is the GRC eaves board and connecting structure of wall schematic diagram of the present invention.
It is the structural schematic diagram that diagonal brace is arranged that Fig. 4, which is between the cornice main joist of the present invention and roofing overhanging reversed beam,.
Fig. 5 is the cross-sectional configuration schematic diagram of the GRC eaves boards of the present invention.
Fig. 6 is the positive structure schematic of the GRC eaves boards of the present invention.
Reference numeral：1-wall, 2-roofings overhanging reversed beam, 3-eaves gutters, 4-switching keel, 5-eaves gutter brackets, 6-
GRC eaves boards, 6.1-horizontal planes, 6.2-top vertical faces, 6.3-lower part vertical faces, 7-cornice main joists, 8-cornices time
Keel, 9-first segment apron flashings, 10-second segment apron flashings, 11-bracket adapters, 12-roofing main joists, 13-roofings
Secondary joist, 14-ribs, 15-roofing tiles, 16-double-edged fine-toothed combs, 17-buried plates, 18-connection bolts, 19-diagonal braces, 20-mountings
Part, 21-angle iron connecting pieces, 22-decoration of exterior wall, 23-bar plantings, 24-bright dress holes, 25-interfaces.
Specific implementation mode
As shown in figures 1 to 6, this rear-loading type GRC eave structures include wall 1, roofing overhanging reversed beam 2, roof decorations
Structure and the eaves gutter 3 that the obliquely downward outside roof decorations structure is set；Rear-loading type GRC eave structures further include have cornice keel,
Apron flashing, switching keel 4, eaves gutter bracket 5 and GRC eaves boards 6；The cornice keel include cornice main joist 7 and cornice
Secondary joist 8；The cornice main joist 7 has one group, longitudinally parallel interval setting；Wherein every cornice main joist 7 each parallel to
The inclined direction of roof decorations structure and it is arranged in the bottom of roof decorations structure；The inner end of the cornice main joist 7 and roofing
Overhang reversed beam 2 to connect, there are spacing between the roof decorations structure outer end and roof decorations structure outer edge of cornice main joist 7；
The cornice secondary joist 8 is connected between the inner end of one group of cornice main joist 7 between the outer end of one group of cornice main joist 7；Institute
It includes first segment apron flashing 9 and second segment apron flashing 10 to state apron flashing；The first segment apron flashing 9 is elongated along longitudinal direction to be laid on
The top of cornice keel；Wherein the inner side edge of first segment apron flashing 9 is connect with roofing overhanging reversed beam 2, outside first segment apron flashing 9
End is located at cornice keel outer end position；The elongated arrangement along longitudinal direction of the second segment apron flashing 10；Wherein, second segment drapes over one's shoulders water
The inner end of plate 10 is tightly attached to the bottom of 9 outer end of first segment apron flashing, and the outer end of second segment apron flashing 10 exceeds roof decorations structure
It outer edge and extends in eaves gutter 3；The switching keel 4 have one group, it is longitudinally parallel interval be connected to outside cornice main joist 7
The bottom of the cornice secondary joist 8 at end；It is connected with bracket adapter 11 in the outside of switching keel 4；The eaves gutter bracket 5 is horizontal even
It is connected on bracket adapter 11；The cross section of the GRC eaves boards 6 is in horizontally-arranged S-shaped, includes horizontal plane 6.1, is connected to water
The top vertical face 6.2 in 6.1 outside of plane and the lower part vertical face 6.3 for being connected to 6.1 inside of horizontal plane；Wherein, horizontal plane 6.1
Positioned at the bottom of switching keel 4；Top vertical face 6.2 is located at the outside of switching keel 4, and is bolted with switching keel 4；Under
Portion's vertical face 6.3 is located at 1 outside of wall, and is fixedly connected with wall 1.
In the present embodiment, GRC is the abbreviation of English Glass fiber Reinforced Concrete, and Chinese is
Glass concrete.
In the present embodiment, the roof decorations structure includes roofing main joist 12, roofing secondary joist 13 and roofing tile 15；
The roofing main joist 12 has one group, the setting of longitudinally parallel interval, and one group of roofing main joist 12 and one group of main dragon of cornice
Bone 7 is corresponding；The roofing secondary joist 13 has one group, and the inclined direction parallel interval along roof decorations structure is connected to roofing master
The top of keel 12；Roofing tile 15 described in the height maximum roof decorations structure of roofing secondary joist 13 wherein on the outermost side is spread
It is located at the top of roofing secondary joist 13.
In the present embodiment, exterior wall is connected in the outside of wall, positioned at the bottom of the lower part vertical face 6.3 of GRC eaves boards 6
Decoration 22；The bottom of the GRC eaves boards 6 extends one section towards 1 side of wall, and one extended section is supported on decoration of exterior wall
On 22.
In the present embodiment, the position that the second segment apron flashing 10 corresponds at cornice keel outer side edges position is folded upward at,
Part on the outside of bending segment is close to roof decorations structure, is extended other than roof decorations structure, second segment apron flashing 10 and first
Section 9 lap of splice of apron flashing is not less than 100mm, and overlapping part uses spot welding, and the overlap joint end head position of upside is used sealing
The elongated closure of glue is guided to eaves gutter 3 to make the water leak under roofing tile 15 pass through the bending part on second segment apron flashing 10
In.
In the present embodiment, in the outside of roof decorations structure, the position between roofing tile 15 and second segment apron flashing 10
Place is continuously equipped with double-edged fine-toothed comb 16, and double-edged fine-toothed comb 16 must cover the gap between roofing tile 15 and second segment apron flashing 10；Double-edged fine-toothed comb 16
It is connected and fixed using screw with cornice keel, screw constant spacing is not more than 250mm.
In the present embodiment, the switching keel 4 are made of angle steel, and the lateral surface for keel 4 of transferring and corresponding cornice
The lateral surface of secondary joist 8 is concordant；
The cross section of the bracket adapter 11 is in inverted L-shaped, includes horizontal edge and is connected to the vertical edge of horizontal edge bottom end；
The vertical edge of wherein bracket adapter 11 is connected on the lateral surface of switching keel 4, and the horizontal edge of bracket adapter 11 extends to GRC eaves
The surface of the top vertical face 6.2 of oralia 6；
The eaves gutter bracket 5 is connected horizontally on the top of bracket adapter 11 along longitudinal direction；The eaves gutter 3 is longitudinally connected in gutter bearer
The outside of frame 5.
In the present embodiment, the eaves gutter 3 is finished metal eaves gutter, and eaves gutter bracket 5 is connected with bracket adapter 11 using bolt
It connects, then finished metal eaves gutter is positioned on eaves gutter bracket 5, connect with eaves gutter bracket 5.
In the present embodiment, on the lateral surface of the wall 1, longitudinally spaced at 6 link position of GRC eaves boards be equipped with is corresponded to
One group of hanging part 20；6.3 inside of lower part vertical face of the GRC eaves boards 6 is equipped with longitudinal notch；Wherein, hanging part 20 is logical
It crosses angle iron connecting piece 21 to be connected horizontally on the lateral surface of wall 1, and the outer side edges of hanging part 20 are plugged on lower part vertical face
In 6.3 notch, it is connect with GRC eaves boards 6；Bonded adhesives is filled in gap between notch and hanging part 20.
In the present embodiment, the GRC eaves board unit spliceds that the GRC eaves boards 6 are continuously arranged along longitudinal direction by one group form；
Bright dress hole 24, and GRC cornices plate unit and switching keel 4 are provided in the top vertical face 6.2 of the GRC cornices plate unit
Between by be threaded through it is bright dress hole 24 in bolt connection；The back of the GRC cornices plate unit longitudinally spaced is provided with one
Ribs 14 is organized, being equipped with fluid sealant at the gap between adjacent GRC cornices plate unit blocks.
In the present embodiment, offered and 20 shape of hanging part on the ribs 14, at the position that corresponding hanging part 20 connects
The adaptable interface 25 of shape；The hanging part 20 is plugged in interface 25, and is blocked by fluid sealant.
In the present embodiment, the lateral surface of the roofing overhanging reversed beam 2 is equipped with buried plate 17；The buried plate 17 is by connecting spiral shell
Bolt 18 is connected on roofing overhanging reversed beam 2；It is welded to connect between the cornice main joist 7 and buried plate 17.
In the present embodiment, when the cantilever span of cornice main joist 7 is more than 400mm, in the bottom and room of cornice main joist 7
Face is equipped with diagonal brace 19 between overhanging reversed beam 2.
The construction method of this rear-loading type GRC eave structures, including steps are as follows.
Step 1：After the wall face finishing and the construction of roofing keel that wait for wall 1, installation cornice main joist 7 and cornice
Secondary joist 8；Cornice main joist 7 uses zinc-plated square steel pipe, and the spacing between spacing and roofing main joist 12 is adapted, and cornice
Main joist 7 is welded with the buried plate 17 on roofing overhanging reversed beam 2；Cornice secondary joist 8 uses zinc-plated square steel pipe, is connected to the main dragon of cornice
Between bone 7, twice are set in the inner end of main joist and outer end, using welding between cornice main joist 7 and cornice secondary joist 8
Connection；If the cantilever span of cornice main joist 7 is more than 400mm, between the bottom of cornice main joist 7 and roofing overhanging reversed beam 2
Diagonal brace 19 is installed.
Step 2：First segment apron flashing 9 is installed：The inner end of first segment apron flashing 9 is bent to form connection flange straight down；
Wherein, connection flange is tightly attached on the lateral surface of roofing overhanging reversed beam 2, is detachably connected with roofing overhanging reversed beam 2；First segment drapes over one's shoulders
The plate face of water plate 9 is connect by fastener with cornice secondary joist 8；The connection flange of first segment apron flashing 9 overhangs reversed beam 2 with roofing
Fluid sealant is broken in joint place.
Step 3：Roofing tile 15 is installed；According to normal process construction roofing tile 15；If 12 outer end of roofing main joist exceeds
Length on the outside of cornice keel is more than 600mm, and supporting rack is arranged in roofing main joist 12 and cornice keel.
Step 4：Installation switching keel 4：The longitudinally parallel interval of one group of switching keel 4 is connected to outside cornice main joist 7
The bottom of the cornice secondary joist 8 at end.
Step 5：Elongated angle iron connecting piece 21 is installed on the lateral surface of wall 1, angle iron connecting piece 21 and wall 1 it
Between 23 spacing 500mm of bar planting, then one group of hanging part 20 is connected with to the top of angle iron connecting piece 21；Wherein hanging part 20
It is made of steel plate.
Step 6：Mounting bracket adapter 11：Bracket adapter 11 is detachably connected on to the outside of switching keel 4.
Step 7：GRC eaves boards 6 are installed：The GRC eaves boards 6 are formed by one group of GRC eaves board unit spliced；Wherein,
The top vertical face 6.2 of GRC eaves boards 6 is provided with bright dress hole 24, top vertical face 6.2 be located at 4 outside of switching keel and with turn
Building sequence bone 4 is bolted, and the lower part vertical face 6.3 of GRC eaves boards 6 is correspondingly connected with the hanging part 20 on the lateral surface of wall 1.
Step 8：After after whole GRC cornices plate units, installation is complete, the bright dress hole 24 on every piece of GRC cornice plate units top
It is blocked using its raw material, the gap between adjacent GRC cornices plate unit is blocked using fluid sealant and jointing.
Step 9：Eaves gutter 3 is installed：Eaves gutter bracket 5 and bracket adapter 11 are detachably connected first, then eaves gutter 3 is put
It is placed on eaves gutter bracket 5 and fixed.
Step 10：Second segment apron flashing 10 is installed：The elongated laying along longitudinal direction of second segment apron flashing 10, and second segment drapes over one's shoulders water
10 inner end of plate is tightly attached to the outer end bottom of first segment apron flashing 9, is not less than 100mm with 9 lap of splice of first segment apron flashing, and
It overlaps end head position and uses the elongated closure of fluid sealant.
Step 11：Double-edged fine-toothed comb 16 is installed：In the outside of roof decorations structure, it is located at roofing tile 15 and second segment apron flashing 10
Between double-edged fine-toothed comb 16 is installed at position, and double-edged fine-toothed comb 16 must cover the gap between roofing tile 15 and second segment apron flashing 10；It combs
Son 16 is connected and fixed with cornice keel using screw, and screw constant spacing is not more than 250mm；So far construction finishes.
In the present embodiment, when the back of GRC eaves boards 6 to be installed, it is longitudinally spaced be provided with one group of ribs 14 when, step
In rapid four when installation switching keel 4, the spacing phase of spacing and the ribs 14 at 6 back of GRC cornices bottom plate between keel 4 of transferring
It adapts to；
In step 5, spacing and the spacing of the ribs 14 at 6 back of GRC eaves boards between adjacent hanging part 20 are adapted.
Above-described embodiment is not the exhaustion of specific implementation mode, can also have other embodiments, above-described embodiment purpose to exist
In illustrating the present invention, the protection domain being not intended to limit the present invention, all applications from simple change of the present invention all fall within this
In the protection domain of invention.
Claims (10)
1. a kind of rear-loading type GRC eave structures, include wall（1）, roofing overhang reversed beam（2）, roof decorations structure and setting
The eaves gutter of obliquely downward outside roof decorations structure（3）；It is characterized in that：Further include having cornice keel, apron flashing, switching keel
（4）, eaves gutter bracket（5）And GRC eaves boards（6）；
The cornice keel include cornice main joist（7）With cornice secondary joist（8）；The cornice main joist（7）There is one group, edge
Parallel longitudinal interval setting；Wherein every cornice main joist（7）Inclined direction and setting each parallel to roof decorations structure exist
The bottom of roof decorations structure；The cornice main joist（7）Inner end and roofing overhang reversed beam（2）Connection, cornice main joist（7）
Outer end and roof decorations structure outer edge between there are spacing；The cornice secondary joist（8）It is connected to one group of cornice main joist
（7）Inner end between and one group of cornice main joist（7）Outer end between；
The apron flashing includes first segment apron flashing（9）With second segment apron flashing（10）；The first segment apron flashing（9）Along vertical
To the elongated top for being laid on cornice keel；Wherein first segment apron flashing（9）Inner side edge and roofing overhang reversed beam（2）Connection,
First segment apron flashing（9）Outer end be located at cornice keel outer end position；The second segment apron flashing（10）Lead to along longitudinal direction
Long arrangement；Wherein, second segment apron flashing（10）Inner end be tightly attached to first segment apron flashing（9）The bottom of outer end, second segment drape over one's shoulders water
Plate（10）Outer end beyond roof decorations structure outer edge and extending to eaves gutter（3）In；
The switching keel（4）Have one group, it is longitudinally parallel interval be connected to cornice main joist（7）The cornice secondary joist of outer end
（8）Bottom；In switching keel（4）Outside be connected with bracket adapter（11）；The eaves gutter bracket（5）It is connected horizontally on support
Frame adapter（11）On；
The GRC eaves boards（6）Cross section be in horizontally-arranged S-shaped, include horizontal plane（6.1）, be connected to horizontal plane（6.1）Outside
The top vertical face of side（6.2）Be connected to horizontal plane（6.1）The lower part vertical face of inside（6.3）；Wherein, horizontal plane（6.1）
Positioned at switching keel（4）Bottom；Top vertical face（6.2）Positioned at switching keel（4）Outside, and with switching keel（4）Spiral shell
It tethers and connects；Lower part vertical face（6.3）Positioned at wall（1）Outside, and and wall（1）It is fixedly connected.
2. rear-loading type GRC eave structures according to claim 1, it is characterised in that：The roof decorations structure includes
Roofing main joist（12）, roofing secondary joist（13）And roofing tile（15）；The roofing main joist（12）Have one group, it is longitudinally parallel
Interval setting, and one group of roofing main joist（12）With one group of cornice main joist（7）It is corresponding；The roofing secondary joist（13）Have
One group, the inclined direction parallel interval along roof decorations structure is connected to roofing main joist（12）Top；Wherein it is located at outermost
The roofing secondary joist of side（13）Height it is maximum；The roofing tile（15）It is laid on roofing secondary joist（13）Top.
3. rear-loading type GRC eave structures according to claim 2, it is characterised in that：The outside of the roof decorations structure,
Positioned at roofing tile（15）With second segment apron flashing（10）Between double-edged fine-toothed comb is continuously equipped at position（16）.
4. rear-loading type GRC eave structures according to claim 1, it is characterised in that：The roofing overhangs reversed beam（2）It is outer
Side is equipped with buried plate（17）；The cornice main joist（7）With buried plate（17）Between be welded to connect.
5. rear-loading type GRC eave structures according to claim 4, it is characterised in that：When cornice main joist（7）Overhanging grow
When degree is more than 400mm, in cornice main joist（7）Bottom and roofing overhang reversed beam（2）Between be equipped with diagonal brace（19）.
6. rear-loading type GRC eave structures according to claim 1, it is characterised in that：The switching keel（4）By angle steel system
At, and keel of transferring（4）Lateral surface and corresponding cornice secondary joist（8）Lateral surface it is concordant；
The bracket adapter（11）Cross section be in inverted L-shaped, include horizontal edge and be connected to the perpendicular of horizontal edge bottom end
Side；Wherein bracket adapter（11）Vertical edge be connected to switching keel（4）Lateral surface on, bracket adapter（11）Horizontal edge prolong
Extend to GRC eaves boards（6）Top vertical face（6.2）Surface；The eaves gutter bracket（5）It is connected horizontally on bracket along longitudinal direction
Adapter（11）Top；The eaves gutter（3）It is longitudinally connected in eaves gutter bracket（5）Outside.
7. rear-loading type GRC eave structures according to claim 1, it is characterised in that：The wall（1）Lateral surface on,
Corresponding GRC eaves boards（6）At link position, longitudinally spaced it is equipped with one group of hanging part（20）；The GRC eaves boards（6）Under
Portion's vertical face（6.3）With hanging part（20）Connection.
8. rear-loading type GRC eave structures according to claim 7, it is characterised in that：The GRC eaves boards（6）By one group
The GRC eaves board unit spliceds being continuously arranged along longitudinal direction form；The top vertical face of the GRC cornices plate unit（6.2）On set
It is equipped with bright dress hole（24）, and GRC cornices plate unit and switching keel（4）Between by being threaded through bright dress hole（24）In bolt
Connection；The back of the GRC cornices plate unit longitudinally spaced is provided with one group of ribs（14）, adjacent GRC cornices plate unit
Between gap at be equipped with fluid sealant block.
9. the construction method of the rear-loading type GRC eave structures described in a kind of any one of claim 1-8, which is characterized in that
Including steps are as follows：
Step 1：Wait for wall（1）Wall face finishing and roofing keel construction after, install cornice main joist（7）And cornice
Secondary joist（8）；
Step 2：First segment apron flashing is installed（9）：First segment apron flashing（9）Inner end be bent to form connection flange straight down；
Wherein, connection flange is tightly attached to roofing overhanging reversed beam（2）Lateral surface on；First segment apron flashing（9）Plate face pass through fastener
With cornice secondary joist（8）Connection；
Step 3：Roofing tile is installed（15）；
Step 4：Installation switching keel（4）：By one group of switching keel（4）Longitudinally parallel interval is connected to cornice main joist（7）
The cornice secondary joist of outer end（8）Bottom；
Step 5：In wall（1）Lateral surface on one group of hanging part of longitudinally spaced setting（20）；
Step 6：Mounting bracket adapter（11）：By bracket adapter（11）It is detachably connected on switching keel（4）Outside；
Step 7：GRC eaves boards are installed（6）：The GRC eaves boards（6）It is formed by one group of GRC eaves board unit spliced；Wherein,
GRC eaves boards（6）Top vertical face（6.2）It is provided with bright dress hole（24）, top vertical face（6.2）Positioned at switching keel（4）
Outside and with switching keel（4）It is bolted, GRC eaves boards（6）Lower part vertical face（6.3）With wall（1）Lateral surface on
Hanging part（20）It is correspondingly connected with；
Step 8：After after whole GRC cornices plate units, installation is complete, the bright dress hole on every piece of GRC cornice plate units top（24）It adopts
It is blocked with its raw material, the gap between adjacent GRC cornices plate unit is blocked using fluid sealant and jointing；
Step 9：Eaves gutter is installed（3）：First by eaves gutter bracket（5）With bracket adapter（11）It is detachably connected, then by eaves gutter
（3）It is positioned over eaves gutter bracket（5）It goes up and fixes；
Step 10：Second segment apron flashing is installed（10）：Second segment apron flashing（10）Elongated laying along longitudinal direction, and second segment drapes over one's shoulders water
Plate（10）Inner end is tightly attached to first segment apron flashing（9）Outer end bottom, with first segment apron flashing（9）The lap of splice is not less than
100mm, and use the elongated closure of fluid sealant in overlap joint end head position；
Step 11：Double-edged fine-toothed comb is installed（16）：In the outside of roof decorations structure, it is located at roofing tile（15）With second segment apron flashing
（10）Between double-edged fine-toothed comb is installed at position（16）, double-edged fine-toothed comb（16）Cover roofing tile and second segment apron flashing（10）Between gap；Extremely
This construction finishes.
10. the construction method of rear-loading type GRC eave structures according to claim 9, it is characterised in that：
When cornice main joist in step 1（7）Cantilever span be more than 400mm when, in cornice main joist（7）Bottom and roofing
Overhang reversed beam（2）Between diagonal brace is installed（19）；
When GRC eaves boards to be installed（6）Back, longitudinally spaced be provided with one group of ribs（14）When, it installs in step 4
Switching keel（4）When, keel of transferring（4）Between spacing and GRC cornice bottom plates（6）The ribs at back（14）Spacing mutually fit
It answers；
In step 5, adjacent hanging part（20）Between spacing and GRC eaves boards（6）The ribs at back（14）Spacing mutually fit
It answers.
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| CN201810394373.XA CN108396913B (en) | 2018-04-27 | 2018-04-27 | Rear-mounted GRC cornice structure and construction method thereof |
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| CN201810394373.XA CN108396913B (en) | 2018-04-27 | 2018-04-27 | Rear-mounted GRC cornice structure and construction method thereof |
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| CN117005634A (en) * | 2023-07-04 | 2023-11-07 | 中建一局集团装饰工程有限公司 | Large-span GRC outer wall decoration member splicing structure and construction method thereof |
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| CN117005634A (en) * | 2023-07-04 | 2023-11-07 | 中建一局集团装饰工程有限公司 | Large-span GRC outer wall decoration member splicing structure and construction method thereof |
| CN117005634B (en) * | 2023-07-04 | 2023-12-29 | 中建一局集团装饰工程有限公司 | Large-span GRC outer wall decoration member splicing structure and construction method thereof |
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|---|---|
| CN108396913B (en) | 2023-12-12 |
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