CN104179341B - One is encorbelmented heavy frame integrated positioning device mounting method - Google Patents
One is encorbelmented heavy frame integrated positioning device mounting method Download PDFInfo
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- CN104179341B CN104179341B CN201410417799.4A CN201410417799A CN104179341B CN 104179341 B CN104179341 B CN 104179341B CN 201410417799 A CN201410417799 A CN 201410417799A CN 104179341 B CN104179341 B CN 104179341B
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Abstract
The invention discloses one to encorbelment heavy frame integrated positioning device mounting method, comprising the steps: one) the leading edge positioner of heavy frame of encorbelmenting installs, two), encorbelment heavy frame tail fixing device install, three), encorbelment heavy frame drag-line leading edge hanger install, four) hanger through walls of heavy frame of encorbelmenting is installed, five) the adjustable drag-line of heavy frame drag-line of encorbelmenting is installed, six) wall-connecting piece of heavy frame drag-line of encorbelmenting is installed.Advantage of the present invention is: can improve builder's jack and install accuracy, dependability, raising efficiency of construction; Device is reusable, reduces construction cost, ensures the quality of products.
Description
Technical field
The present invention relates to a kind of construction techniques, in particular, relate to one and to encorbelment heavy frame integrated positioning device mounting method.
Background technology
Existing building operations fastener type steel pipe scaffold construction technology, regulation in the installation and servicing unit thereof of builder's jack is comparatively simple and easy, and there is safety in installing in practice of construction, quality, many problems such as cost, as the protection problem of heavy frame drag-line and shaped steel contact site, vertical rod is orientation problem on heavy frame, heavy frame fastening devices reuse problem, heavy frame lifting lug device and offering question, the set-up mode of builder's jack wall-connecting piece and application problem again etc., these problems can affect the use safety of builder's jack, affect fitting operation quality and building protection cycle, affect the economic benefit of scaffold leasing unit.There is the problems such as Site Welding condition is poor, welding quality is low, easy initiation fire in current construction technology.
Summary of the invention
The present invention is directed to the deficiencies in the prior art, and provide a kind of construction and installation simple and easy convenient, can Reusability, safe and reliable, can save lease and use cost, raising heavy frame security and stability heavy frame integrated positioning device mounting method of encorbelmenting.
One of the present invention is encorbelmented heavy frame integrated positioning device mounting method, it is characterized in that, comprises the following steps:
A, pre-buried installation leading edge hanger:
The pre-buried installation leading edge hanger when concrete wall body construction, leading edge hanger is arranged on the leading edge position of the external part of heavy frame of encorbelmenting, during installation by link upward, subiculum muscle contacts with shaft section under heavy frame of encorbelmenting, limit rib contacts with shaft section on heavy frame of encorbelmenting, parallel inside slippage, uses triangle stopper that leading edge hanger and heavy frame of encorbelmenting are stabilized in 90 ° of states;
B, pre-buried installation hanger through walls:
First protecting pipe I is embedded in concrete wall by precalculated position, keeps protecting pipe I tail end high outside and low outside time pre-buried, protecting pipe I length and concrete wall consistency of thickness, the use at the interval that protecting pipe I therefrom penetrates as bar front end through walls and extracts; Then penetrated from protecting pipe I collar extension by the bar end of thread through walls, outside, baffle plate penetrates in bar through walls in screw thread suspension ring, is screwed into by hold-down nut I; Reach after freezing period until concrete wall, hold-down nut I is tightened, take double nut to reinforce;
C, pre-buried installation tail fixing device:
The pre-buried installation tail fixing device when concrete floor slab construction, first protecting pipe II is installed, the length of protecting pipe II is identical with thickness of concrete floor, when the assembling reinforcement of concrete floor formwork, protecting pipe II, bottom plate and set bolt I is fixed with reinforcing bar binding simultaneously;
Then the one end of heavy frame of encorbelmenting to be placed on floor face inside surrounding, one end is stretched out outside floor and is carried vertical rod of encorbelmenting, the other end is placed in the centre position corresponding with the set bolt I stretched out of pre-buried protecting pipe II on floor face, installs tail fixing device as canned paragraph;
Finally tail fixing device is installed, every root is encorbelmented in heavy frame and is arranged two groups of tail fixing devices, top board is penetrated from set bolt I, hold-down nut II is adopted to be screwed among set bolt I, symmetry tightens hold-down nut II, compression is encorbelmented heavy frame, tighten second hold-down nut II again and prevent absent-mindedness, after tail fixing device is installed, bottom plate and floor slab bottoms are adjacent to, encorbelment heavy frame lower section and floor top is adjacent to, and top board is adjacent to the upper section of heavy frame of encorbelmenting, and tail fixing device, concrete floor and heavy frame of encorbelmenting is formed firmly overall;
D, installation leading edge positioner;
Two single u-shaped bolts of leading edge positioner are penetrated from the leading edge position of heavy frame external part of encorbelmenting respectively, two pieces of bearing plates are penetrated respectively by two U bolts, be placed in cross section, heavy frame top of encorbelmenting, cushion block is placed in U bolt, hold-down nut III is used to be screwed into U bolt two ends, bearing plate, U bolt, cushion block and heavy frame of encorbelmenting are formed quaternity, and after the adjustment of leading edge positioner, symmetry tightens hold-down nut III;
E, install and to encorbelment vertical rod and cross bar:
The locating shaft of leading edge positioner fixedly mounts two vertical rods of encorbelmenting, encorbelments between vertical rod at two and fixedly mount cross bar by steel tube fastener;
F, adjustable drag-line is installed:
Adjustable drag-line is divided into drag-line and downhaul, first drag-line is installed, one end of upper drag-line is passed in the lump together with capel from hanger through walls, the upper drag-line passed starts to turn back more than during three sling fixed ranges, to penetrate and upper drag-line parcel capel after turning back forms mobilizable link shape rope ear, three slings and upper drag-line are fixed by regulation, the other end of pull-up line stretch is connected with flower basket bolt;
Then downhaul is installed, one end of downhaul is passed in the lump together with capel from leading edge hanger, the downhaul passed starts to turn back more than during three sling fixed ranges, penetrate and downhaul parcel capel after turning back forms mobilizable link shape rope ear time, three slings and downhaul are fixed by regulation, the other end that downhaul extends is connected with flower basket bolt;
Finally install and regulate flower basket bolt, the upper end of upper drag-line is connected with hanger through walls, lower end is linked on the hook of flower basket bolt, downhaul upper end is linked on the hook of flower basket bolt, lower end is linked in the link of leading edge hanger, after upper drag-line, downhaul, flower basket bolt are connected as a single entity and form straight line, flower basket bolt is regulated to tighten to drag-line;
G, installation wall-connecting piece:
Protecting pipe III is implanted when precast concrete wall in the reinforcing bar of concrete wall, protecting pipe III implantation position meets special scheme requirement, one end of the set bolt II of wall-connecting piece is penetrated protecting pipe III outside concrete wall, only contact to junction plate end face with concrete wall, at the position of set bolt II passing concrete wall, backing plate is inserted in set bolt II, two hold-down nut IV are screwed among set bolt II; After concrete wall coagulation forming, two hold-down nut IV are tightened, is fixed on body of wall horizontal to wall-connecting piece, connecting rod is fixedly connected with by steel tube fastener with wall connecting rod, form encorbelment vertical rod, cross bar and wall-connecting piece in aggregates.
Described heavy frame of encorbelmenting is made up of the H profile steel of twin shaft symmetrical section.
The canned paragraph length of described heavy frame of encorbelmenting is not less than 1.25 times of segment length of encorbelmenting.
Described leading edge hanger is made up of link, stud, limit rib and subiculum muscle; Described leading edge hanger manufacturing process is: diameter 20mm reinforcing bar from subiculum muscle along to encorbelment the bending of 90 °, heavy frame side, to starting during the upper shaft section of heavy frame of encorbelmenting inwardly to fold the stud that bending 8-10 ° forms band bending, the radian of turning back into band hanger shape downwards forms link, continue again to turn back downwards and be shaped as symmetrical flower-basket type stud, be fixed with subiculum muscle confluce again, on the vertical position of stud two side encorbelments heavy frame, shaft section welds a limit rib, prevent leading edge hanger encorbelment on heavy frame slide or come off.
Described hanger through walls is made up of protecting pipe I, bar through walls, suspension ring, baffle plate and hold-down nut I; Described bar through walls and suspension ring are an entirety, and bar front end through walls is 80-100mm thread segment, and tail end makes the suspension ring of diameter 80-100mm, use as the upper drag-line of connection; Described baffle plate is made up of rectangular steel plates, is provided with the hole of fixing bar through walls in the center of baffle plate.
Described tail fixing device is made up of top board, bottom plate, set bolt I, hold-down nut II and protecting pipe II; Described top board is made up of the rectangular steel plates of thickness 15-20mm, is provided with the hole of set bolt I in both sides, top board centre; Described bottom plate is made up of the rectangular steel plates of thickness 15-20mm, offers two welding holes in the position that bottom plate both sides are corresponding with top board, and described set bolt I is through welding hole, and set bolt I end is provided with length 25-35mm screw thread; Described protecting pipe II is made up of external diameter 22-25mm plastics penetration pipe.
Described leading edge positioner is made up of U-bolt, bearing plate, locating shaft, cushion block and hold-down nut III; Described U bolt adopts reinforcing bar to make " U " shape, and U bolt upper end is provided with length 25-35mm screw thread; Described bearing plate is made up of thickness 10-15mm rectangular steel plates, and offer two bolts hole in bearing plate both sides, U bolt passes fixing bearing plate from hole; Described locating shaft is fixedly connected on the center of bearing plate; Described cushion block is made up of thickness 8-10mm rectangular steel plates, offers the hole slightly larger than U bolt diameter in cushion block center.
Described wall-connecting piece is made up of connecting rod, wall connecting rod, junction plate, backing plate, set bolt II, hold-down nut IV and protecting pipe III; Described wall connecting rod and junction plate are welded and fixed, described junction plate center is provided with the hole directly corresponding with set bolt II, one end of set bolt II without screw thread is inserted in the hole a little less than junction plate, described set bolt II fixedly welds with junction plate is vertical, described wall connecting rod end face welds with junction plate planar point, offers bolt hole in the middle of described backing plate.
Described U bolt threaded upper ends section is left-right rotary screw thread, screw thread is provided with two hold-down nuts, and one is left-handed and another is dextrorotation.
Described U bolt is tightened torsional moment and is not less than 40N.m, is not more than 65N.m.
The invention has the beneficial effects as follows: heavy frame vertical rod positioning stablity of encorbelmenting after the installation of (1) use the inventive method, heavy frame afterbody is firm, and upper and lower double shackle and drag-line are fixed, and non-pre-buried wall-connecting piece can use optional position, adds the wall-connecting piece scope of application.(2) mounting method of the present invention can improve builder's jack installation accuracy and dependability, ensures construction quality.(3) device of the present invention is as builder's jack auxiliary product, customizablely manufactures, and compensate for the blank not having heavy frame accessory fixture at present.(4) device of the present invention is reusable, can reduce construction cost, improves efficiency of construction.
Accompanying drawing explanation
Fig. 1 is total scheme of installation of the present invention;
Fig. 2 is the leading edge positioner schematic diagram in Fig. 1 of the present invention;
Fig. 3 is the tail fixing device schematic diagram in Fig. 1 of the present invention;
Fig. 4 is the leading edge hanger schematic diagram in Fig. 1 of the present invention;
Fig. 5 is the hanger schematic diagram through walls in Fig. 1 of the present invention;
Fig. 6 is the adjustable drag-line schematic diagram in Fig. 1 of the present invention;
Fig. 7 is the wall-connecting piece schematic diagram in Fig. 1 of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, the invention will be further described.
As shown in Figure 1, one of the present invention is encorbelmented heavy frame integrated positioning device mounting method, it is characterized in that, comprises the following steps:
A, pre-buried installation leading edge hanger 6:
The pre-buried installation leading edge hanger 6 when concrete wall 5-2 constructs, leading edge hanger 6 is arranged on the leading edge position of the external part of heavy frame 2 of encorbelmenting, during installation by link 6-1 upward, subiculum muscle 6-4 contacts with heavy frame 2 times shaft sections of encorbelmenting, limit rib 6-3 contacts with shaft section on heavy frame 2 of encorbelmenting, parallel inside slippage, uses triangle stopper that leading edge hanger 6 and heavy frame 2 of encorbelmenting are stabilized in 90 ° of states;
B, pre-buried installation hanger 7 through walls:
First protecting pipe I7-1 is embedded in concrete wall 5-2 by precalculated position, keep protecting pipe I7-1 tail end high outside and low outside time pre-buried, protecting pipe I7-1 length and concrete wall 5-2 consistency of thickness, the use at the interval that protecting pipe I7-1 therefrom penetrates as bar 7-2 front end through walls and extracts; Then penetrated from protecting pipe I7-1 collar extension by the bar 7-2 end of thread through walls, outside, baffle plate to penetrate in bar 7-2 through walls in screw thread suspension ring 7-3, is screwed into by hold-down nut I7-5; After concrete wall 5-2 reaches freezing period, hold-down nut I7-5 is tightened, take double nut to reinforce;
C, pre-buried installation tail fixing device 4:
The pre-buried installation tail fixing device 4 when concrete floor 5-1 constructs, first protecting pipe II4-5 is installed, the length of protecting pipe II4-5 is identical with thickness of concrete floor, when the assembling reinforcement of concrete floor formwork, protecting pipe II4-5, bottom plate 4-2 and set bolt I4-3 are fixed with reinforcing bar binding simultaneously;
Then the one end of heavy frame 2 of encorbelmenting to be placed on floor face inside surrounding, one end is stretched out outside floor and is carried vertical rod 1 of encorbelmenting, the other end is placed in the centre position corresponding with the set bolt I4-3 stretched out of pre-buried protecting pipe II4-5 on floor face, installs tail fixing device 4 as canned paragraph;
Finally tail fixing device 4 is installed, every root is encorbelmented in heavy frame 2 and is arranged two groups of tail fixing devices 4, top board 4-1 is penetrated from set bolt I4-3, hold-down nut II4-4 is adopted to be screwed among set bolt I4-3, symmetry tightens hold-down nut II4-4, compression is encorbelmented heavy frame 2, tighten second hold-down nut II4-4 again and prevent absent-mindedness, after tail fixing device 4 is installed, be adjacent to bottom bottom plate 4-2 and floor 5-1, encorbelment heavy frame 2 lower section and floor 5-1 top is adjacent to, top board 4-1 is adjacent to the upper section of heavy frame 2 of encorbelmenting, by tail fixing device 4, concrete floor 5-1 and heavy frame 2 of encorbelmenting are formed firmly overall,
D, installation leading edge positioner 3;
Two single u-shaped bolt 3-1 of leading edge positioner 3 are penetrated from the leading edge position of heavy frame 2 external part of encorbelmenting respectively, two pieces of bearing plate 3-2 are penetrated respectively by two U bolt 3-1, be placed in cross section, heavy frame 2 top of encorbelmenting, cushion block 3-4 is placed in U bolt 3-1, hold-down nut III3-5 is used to be screwed into U bolt 3-1 two ends, bearing plate 3-2, U bolt 3-1, cushion block 3-4 and heavy frame 2 of encorbelmenting are formed quaternity, after leading edge positioner 3 adjusts, symmetry tightens hold-down nut III3-5;
E, install and to encorbelment vertical rod 1 and cross bar 1-1:
The locating shaft 3-3 of leading edge positioner 3 fixedly mounts two vertical rods 1 of encorbelmenting, and encorbelmenting between vertical rod 1 at two fixedly mounts cross bar 1-1 by steel tube fastener 1-2;
F, adjustable drag-line is installed:
Adjustable drag-line is divided into drag-line 8-1 and downhaul 8-2, first drag-line 8-1 is installed, one end of upper drag-line 8-1 is passed in the lump together with capel 8-3 from hanger 7 through walls, the upper drag-line 8-1 passed starts to turn back more than during three sling 8-4 fixed ranges, to penetrate and upper drag-line 8-1 after turning back wraps up capel 8-3 forms mobilizable link shape rope ear 8-5, fixed by three sling 8-4 and upper drag-line 8-1 by regulation, the other end that upper drag-line 8-1 extends is connected with flower basket bolt 9;
Then downhaul 8-2 is installed, one end of downhaul 8-2 is passed in the lump together with capel 8-3 from leading edge hanger 7, the downhaul 8-2 passed starts to turn back more than during three sling 8-4 fixed ranges, to penetrate and downhaul 8-2 after turning back wraps up capel 8-3 when forming mobilizable link shape rope ear 8-5, fixed by three sling 8-4 and downhaul 8-2 by regulation, the other end that downhaul 8-2 extends is connected with flower basket bolt 9;
Finally install and regulate flower basket bolt 9, the upper end of upper drag-line 8-1 is connected with hanger 7 through walls, lower end is linked on the hook of flower basket bolt 9, downhaul 8-2 upper end is linked on the hook of flower basket bolt 9, lower end is linked in the link 6-1 of leading edge hanger 6, after upper drag-line 8-1, downhaul 8-2, flower basket bolt 9 are connected as a single entity and form straight line, flower basket bolt 9 to drag-line is regulated to tighten;
G, installation wall-connecting piece 10:
Protecting pipe III10-7 is implanted when precast concrete wall 5-2 in the reinforcing bar of concrete wall 5-2, protecting pipe III10-7 implantation position meets special scheme requirement, one end of the set bolt II10-5 of wall-connecting piece 10 is penetrated protecting pipe III10-7 outside concrete wall 5-2, only contact to junction plate 10-3 end face with concrete wall 5-2, at the position of set bolt II10-5 passing concrete wall 5-2, backing plate 10-4 is inserted in set bolt II10-5, two hold-down nut IV10-6 are screwed among set bolt II10-5; After concrete wall 5-2 coagulation forming, two hold-down nut IV10-6 are tightened, be fixed on body of wall horizontal to wall-connecting piece 10, connecting rod 10-1 is fixedly connected with by steel tube fastener 1-2 with wall connecting rod 10-2, form encorbelment vertical rod 1, cross bar 1-1 and wall-connecting piece 10 in aggregates.
Described heavy frame 2 of encorbelmenting is made up of the H profile steel of twin shaft symmetrical section, and the canned paragraph length of heavy frame 2 of encorbelmenting is not less than 1.25 times of segment length of encorbelmenting.
As shown in Figure 4, described leading edge hanger 6 is made up of link 6-1, stud 6-2, limit rib 6-3 and subiculum muscle 6-4, described leading edge hanger 6 manufacturing process is: diameter 20mm reinforcing bar from subiculum muscle 6-4 along to encorbelment the bending of 90 °, heavy frame 2 side, to starting during the upper shaft section of heavy frame 2 of encorbelmenting inwardly to fold the stud 6-2 that bending 8-10 ° forms band bending, the radian of turning back into band hanger shape downwards forms link 6-1, continue again to turn back downwards and be shaped as symmetrical flower-basket type stud 6-2, be fixed with subiculum muscle 6-4 confluce again, on the vertical position of stud 6-2 bis-side encorbelments heavy frame 2, shaft section welds a limit rib 6-3, prevent leading edge hanger 6 encorbelment on heavy frame 2 slide or come off.
As shown in Figure 5, described hanger through walls 7 is made up of protecting pipe I7-1, bar 7-2 through walls, suspension ring 7-3, baffle plate 7-4 and hold-down nut I7-5; Described bar 7-2 through walls and suspension ring 7-3 is an entirety, and bar 7-2 front end through walls is 80-100mm thread segment, and tail end makes the suspension ring 7-3 of diameter 80-100mm, uses as the upper drag-line 8-1 of connection; Described baffle plate 7-4 is made up of rectangular steel plates, is provided with the hole of fixing bar 7-2 through walls in the center of baffle plate 7-4.
As shown in Figure 3, described tail fixing device 4 is made up of top board 4-1, bottom plate 4-2, set bolt I4-3, hold-down nut II4-4 and protecting pipe II4-5; Described top board 4-1 is made up of the rectangular steel plates of thickness 15-20mm, is provided with the hole of set bolt I4-3 in both sides, top board 4-1 centre; Described bottom plate 4-2 is made up of the rectangular steel plates of thickness 15-20mm, two welding holes are offered in the position that bottom plate 4-2 both sides are corresponding with top board 4-1, described set bolt I4-3 is through welding hole, and set bolt I4-3 end is provided with length 25-35mm screw thread; Described protecting pipe II4-5 is made up of external diameter 22-25mm plastics penetration pipe.
As shown in Figure 2, described leading edge positioner 3 is made up of U-bolt 3-1, bearing plate 3-2, locating shaft 3-3, cushion block 3-4 and hold-down nut III3-5; Described U bolt 3-1 adopts reinforcing bar to make " U " shape, and U bolt 3-1 upper end is provided with length 25-35mm screw thread; Described bearing plate 3-2 is made up of thickness 10-15mm rectangular steel plates, offers two bolts hole in bearing plate 3-2 both sides, and U bolt 3-1 passes fixing bearing plate 3-2 from hole; Described locating shaft 3-3 is fixedly connected on the center of bearing plate 3-2; Described cushion block 3-4 is made up of thickness 8-10mm rectangular steel plates, offers the hole slightly larger than U bolt 3-1 diameter in cushion block 3-4 center.
As shown in Figure 7, described wall-connecting piece 10 is made up of connecting rod 10-1, wall connecting rod 10-2, junction plate 10-3, backing plate 10-4, set bolt II10-5, hold-down nut IV10-6 and protecting pipe III10-7; Described wall connecting rod 10-2 and junction plate 10-3 is welded and fixed, described junction plate 10-3 center is provided with the hole directly corresponding with set bolt II10-5, one end of set bolt II10-5 without screw thread is inserted in the hole a little less than junction plate 10-3, described set bolt II10-5 fixedly welds with junction plate 10-3 is vertical, described wall connecting rod 10-2 end face welds with junction plate 10-3 planar point, offers bolt hole in the middle of described backing plate 10-4.
Described U bolt 3-1 threaded upper ends section is left-right rotary screw thread, screw thread is provided with two hold-down nuts, and one is left-handed and another is dextrorotation.Described U bolt 3-1 tightens torsional moment and is not less than 40N.m, is not more than 65N.m.
Device of the present invention installs and uses rear method for dismounting:
1, regulate flower basket bolt 9 that drag-line 8-1 and downhaul 8-2 is loosened, dismounting flower basket bolt 9, upper drag-line 8-1 and downhaul 8-2;
2, encorbelment vertical rod 1 and cross bar 1-1 is dismantled;
3, connecting rod 10-1 and wall-connecting piece 10 is dismantled;
4, hanger 7 through walls is dismantled;
5, leading edge positioner 3 is dismantled;
6, tail fixing device 4 is dismantled;
7, heavy frame 2 of encorbelmenting is dismantled;
8, all parts is carried out combination pretension, prevent from being scattered and lose in order to reusing.
Embodiment
In certain megastore of city high-rise building, the commerce and trade Building project of more than 60 meter high have employed heavy frame integrated positioning device mounting method of encorbelmenting, successfully solve the problem of builder's jack fixture disappearance, set up when heavy frame integrated positioning device of encorbelmenting is installed accurate, easy for installation simple, on-the-spot low without burning things which may cause a fire disaster, saving steel, lease integrated cost, accomplish safe and reliable civilized construction.Although encorbelment, heavy frame integrated positioning device makes needs nonrecurring cost to drop into, but be through in this project cost accounting, it is only 1/2 of previously cost input that nonrecurring cost drops into, and this device can reuse more than at least 10 times, can be greatly cost-saving.
Claims (10)
1. to encorbelment a heavy frame integrated positioning device mounting method, it is characterized in that, comprise the following steps:
A, pre-buried installation leading edge hanger (6):
The pre-buried installation leading edge hanger (6) when concrete wall (5-2) is constructed, leading edge hanger (6) is arranged on the leading edge position of the external part of heavy frame of encorbelmenting (2), during installation by link (6-1) upward, subiculum muscle (6-4) contacts with shaft section under heavy frame of encorbelmenting (2), limit rib (6-3) contacts with the upper shaft section of heavy frame of encorbelmenting (2), parallel inside slippage, uses triangle stopper that leading edge hanger (6) and heavy frame (2) of encorbelmenting are stabilized in 90 ° of states;
B, pre-buried installation hanger through walls (7):
First by protecting pipe I(7-1) be embedded in concrete wall (5-2) by precalculated position, protecting pipe I(7-1 is kept time pre-buried) tail end is high outside and low outside, protecting pipe I(7-1) length and concrete wall (5-2) consistency of thickness, protecting pipe I(7-1) use at interval that therefrom penetrates and extract as bar through walls (7-2) front end; Then by bar through walls (7-2) end of thread from protecting pipe I(7-1) collar extension penetrates, outside, baffle plate penetrates in bar through walls (7-2) in screw thread suspension ring (7-3), by hold-down nut I(7-5) be screwed into; After concrete wall (5-2) reaches freezing period, by hold-down nut I(7-5) tighten, take double nut to reinforce;
C, pre-buried installation tail fixing device (4):
The pre-buried installation tail fixing device (4) when concrete floor (5-1) is constructed, first protecting pipe II(4-5 is installed), protecting pipe II(4-5) length identical with thickness of concrete floor, when the assembling reinforcement of concrete floor formwork, by protecting pipe II(4-5), bottom plate (4-2) and set bolt I(4-3) fix with reinforcing bar binding simultaneously;
Then one end of heavy frame of encorbelmenting (2) to be placed on floor face inside surrounding, one end is stretched out outside floor and is carried vertical rod (1) of encorbelmenting, the other end is placed in pre-buried protecting pipe II(4-5 on floor face) and the set bolt I(4-3 that stretches out) corresponding centre position, as canned paragraph, tail fixing device (4) is installed;
Tail fixing device (4) is finally installed, every root is encorbelmented in heavy frame (2) and is arranged two groups of tail fixing devices (4), by top board (4-1) from set bolt I(4-3) penetrate, adopt hold-down nut II(4-4) be screwed into set bolt I(4-3) among, symmetry tightens hold-down nut II(4-4), compression is encorbelmented heavy frame (2), tighten second hold-down nut II(4-4 again) prevent absent-mindedness, after tail fixing device (4) is installed, bottom plate (4-2) is adjacent to floor (5-1) bottom, encorbelment heavy frame (2) lower section and floor (5-1) top is adjacent to, top board (4-1) is adjacent to the upper section of heavy frame (2) of encorbelmenting, by tail fixing device (4), concrete floor (5-1) and heavy frame of encorbelmenting (2) are formed firmly overall,
D, installation leading edge positioner (3);
Two single u-shaped bolts (3-1) of leading edge positioner (3) are penetrated from the leading edge position of heavy frame of encorbelmenting (2) external part respectively, two pieces of bearing plates (3-2) are penetrated respectively by two U bolts (3-1), be placed in heavy frame of encorbelmenting (2) cross section, top, cushion block (3-4) is placed in U bolt (3-1), use hold-down nut III(3-5) be screwed into U bolt (3-1) two ends, by bearing plate (3-2), U bolt (3-1), cushion block (3-4) and heavy frame of encorbelmenting (2) form quaternity, after leading edge positioner (3) adjustment, symmetry tightens hold-down nut III(3-5),
E, install and to encorbelment vertical rod (1) and cross bar (1-1):
Upper fixed installation two vertical rods of encorbelmenting (1) of locating shaft (3-3) in leading edge positioner (3), fixedly mount cross bar (1-1) by steel tube fastener (1-2) between two vertical rods of encorbelmenting (1);
F, adjustable drag-line is installed:
Adjustable drag-line is divided into drag-line (8-1) and downhaul (8-2), first drag-line (8-1) is installed, one end of upper drag-line (8-1) is passed in the lump together with capel (8-3) from hanger through walls (7), the upper drag-line (8-1) passed starts to turn back more than during three sling (8-4) fixed ranges, to penetrate and upper drag-line (8-1) after turning back wraps up capel (8-3) forms mobilizable link shape rope ear (8-5), by regulation, three slings (8-4) and upper drag-line (8-1) are fixed, the other end that upper drag-line (8-1) extends is connected with flower basket bolt (9),
Downhaul (8-2) is then installed, one end of downhaul (8-2) is passed in the lump together with capel (8-3) from leading edge hanger (6), the downhaul (8-2) passed starts to turn back more than during three sling (8-4) fixed ranges, to penetrate and downhaul (8-2) after turning back wraps up capel (8-3) when forming mobilizable link shape rope ear (8-5), three slings (8-4) and downhaul (8-2) are fixed by regulation, the other end that downhaul (8-2) extends is connected with flower basket bolt (9);
Finally install and regulate flower basket bolt (9), the upper end of upper drag-line (8-1) is connected with hanger through walls (7), lower end is linked on the hook of flower basket bolt (9), downhaul (8-2) upper end is linked on the hook of flower basket bolt (9), lower end is linked in the link (6-1) of leading edge hanger (6), after upper drag-line (8-1), downhaul (8-2), flower basket bolt (9) are connected as a single entity and form straight line, flower basket bolt (9) is regulated to tighten to drag-line;
G, installation wall-connecting piece (10):
By protecting pipe III(10-7) implant in the reinforcing bar of concrete wall (5-2) when precast concrete wall (5-2), protecting pipe III(10-7) implantation position meets special scheme requirement, set bolt II(10-5 by wall-connecting piece (10)) one end from concrete wall (5-2) outside penetrate protecting pipe III(10-7), only contact to junction plate (10-3) end face with concrete wall (5-2), passing the set bolt II(10-5 of concrete wall (5-2)) position, backing plate (10-4) is inserted in set bolt II(10-5) in, by two hold-down nut IV(10-6) be screwed into set bolt II(10-5) among, after concrete wall (5-2) coagulation forming, by two hold-down nut IV(10-6) tighten, be fixed on body of wall horizontal to wall-connecting piece (10), connecting rod (10-1) is fixedly connected with by steel tube fastener (1-2) with wall connecting rod (10-2), forms encorbelment vertical rod (1), cross bar (1-1) and wall-connecting piece (10) in aggregates.
2. one according to claim 1 is encorbelmented heavy frame integrated positioning device mounting method, it is characterized in that, described in heavy frame (2) of encorbelmenting be made up of the H profile steel of twin shaft symmetrical section.
3. one according to claim 2 is encorbelmented heavy frame integrated positioning device mounting method, it is characterized in that, described in the encorbelment canned paragraph length of heavy frame (2) be not less than 1.25 times of segment length of encorbelmenting.
4. one according to claim 1 is encorbelmented heavy frame integrated positioning device mounting method, and it is characterized in that, described leading edge hanger (6) is made up of link (6-1), stud (6-2), limit rib (6-3) and subiculum muscle (6-4), described leading edge hanger (6) manufacturing process is: diameter 20mm reinforcing bar from subiculum muscle (6-4) along to encorbelment the bending of 90 °, heavy frame (2) side, to starting during the upper shaft section of heavy frame of encorbelmenting (2) inwardly to fold the stud (6-2) that bending 8-10 ° forms band bending, the radian of turning back into band hanger shape downwards forms link (6-1), continue again to turn back downwards and be shaped as symmetrical flower-basket type stud (6-2), be fixed with subiculum muscle (6-4) confluce again, on the vertical position of stud (6-2) two side encorbelments heavy frame (2), shaft section welds a limit rib (6-3), prevent leading edge hanger (6) from sliding on heavy frame of encorbelmenting (2) or coming off.
5. one according to claim 1 is encorbelmented heavy frame integrated positioning device mounting method, it is characterized in that, described hanger through walls (7) is by protecting pipe I(7-1), bar through walls (7-2), suspension ring (7-3), baffle plate (7-4) and hold-down nut I(7-5) form; Described bar through walls (7-2) and suspension ring (7-3) are an entirety, and bar through walls (7-2) front end is 80-100mm thread segment, and tail end makes the suspension ring (7-3) of diameter 80-100mm, use as the upper drag-line (8-1) of connection; Described baffle plate (7-4) is made up of rectangular steel plates, is provided with the hole of fixing bar through walls (7-2) in the center of baffle plate (7-4).
6. one according to claim 1 is encorbelmented heavy frame integrated positioning device mounting method, it is characterized in that, described tail fixing device (4) is by top board (4-1), bottom plate (4-2), set bolt I(4-3), hold-down nut II(4-4) and protecting pipe II(4-5) form; Described top board (4-1) is made up of the rectangular steel plates of thickness 15-20mm, and top board (4-1) both sides, centre are provided with set bolt I(4-3) hole; Described bottom plate (4-2) is made up of the rectangular steel plates of thickness 15-20mm, two welding holes are offered in the position that bottom plate (4-2) both sides are corresponding with top board (4-1), described set bolt I(4-3) through welding hole, set bolt I(4-3) end is provided with length 25-35mm screw thread; Described protecting pipe II(4-5) be made up of external diameter 22-25mm plastics penetration pipe.
7. one according to claim 1 is encorbelmented heavy frame integrated positioning device mounting method, it is characterized in that, described leading edge positioner (3) is by U-bolt (3-1), bearing plate (3-2), locating shaft (3-3), cushion block (3-4) and hold-down nut III(3-5) form; Described U bolt (3-1) adopts reinforcing bar to make " U " shape, and U bolt (3-1) upper end is provided with length 25-35mm screw thread; Described bearing plate (3-2) is made up of thickness 10-15mm rectangular steel plates, offers two bolts hole in bearing plate (3-2) both sides, and U bolt (3-1) passes fixing bearing plate (3-2) from hole; Described locating shaft (3-3) is fixedly connected on the center of bearing plate (3-2); Described cushion block (3-4) is made up of thickness 8-10mm rectangular steel plates, offers the hole slightly larger than U bolt (3-1) diameter in cushion block (3-4) center.
8. one according to claim 1 is encorbelmented heavy frame integrated positioning device mounting method, it is characterized in that, described wall-connecting piece (10) is by connecting rod (10-1), wall connecting rod (10-2), junction plate (10-3), backing plate (10-4), set bolt II(10-5), hold-down nut IV(10-6) and protecting pipe III(10-7) form; Described wall connecting rod (10-2) and junction plate (10-3) are welded and fixed, described junction plate (10-3) center is provided with and set bolt II(10-5) directly corresponding hole, by set bolt II(10-5) one end of without screw thread inserts in the hole a little less than junction plate (10-3), described set bolt II(10-5) fixedly weld with junction plate (10-3) is vertical, described wall connecting rod (10-2) end face welds with junction plate (10-3) planar point, offers bolt hole in the middle of described backing plate (10-4).
9. one according to claim 7 is encorbelmented heavy frame integrated positioning device mounting method, and it is characterized in that, described U bolt (3-1) threaded upper ends section is left-right rotary screw thread, screw thread is provided with two hold-down nuts, and one is left-handed and another is dextrorotation.
10. one according to claim 9 is encorbelmented heavy frame integrated positioning device mounting method, and it is characterized in that, described U bolt (3-1) is tightened torsional moment and is not less than 40N.m, is not more than 65N.m.
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| CN201410417799.4A CN104179341B (en) | 2014-08-25 | 2014-08-25 | One is encorbelmented heavy frame integrated positioning device mounting method |
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| CN201410417799.4A CN104179341B (en) | 2014-08-25 | 2014-08-25 | One is encorbelmented heavy frame integrated positioning device mounting method |
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| CN104179341B true CN104179341B (en) | 2016-03-23 |
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