CN114837428A - Steel structure industrial building modular installation method - Google Patents
Steel structure industrial building modular installation method Download PDFInfo
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- CN114837428A CN114837428A CN202210300954.9A CN202210300954A CN114837428A CN 114837428 A CN114837428 A CN 114837428A CN 202210300954 A CN202210300954 A CN 202210300954A CN 114837428 A CN114837428 A CN 114837428A
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/14—Conveying or assembling building elements
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/14—Conveying or assembling building elements
- E04G21/16—Tools or apparatus
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/14—Conveying or assembling building elements
- E04G21/16—Tools or apparatus
- E04G21/162—Handles to carry construction blocks
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/14—Conveying or assembling building elements
- E04G21/16—Tools or apparatus
- E04G21/18—Adjusting tools; Templates
- E04G21/1841—Means for positioning building parts or elements
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- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
The invention discloses a modular installation method for a steel structure industrial building, which relates to the technical field of modular installation of steel structure buildings, and provides the following scheme aiming at the problem of the existing construction difficulty, wherein the method comprises the following steps: s1: cleaning the ground, drawing a positioning label on the base surface, measuring the ground elevation and preparing a cushion block; s2: simultaneously with the step S1, mounting a connecting plate at the top end of the upright post at another station, shifting the upright post to the position where the positioning label is drawn, placing the upright post, and marking the position 1m below the bracket; s3: when the step S2 is carried out, the roof hoisting unit is assembled at another station and is shifted to a safe position, a large amount of overhead work can be completed on the ground, the workload of the overhead work is reduced, the safety risk is reduced, the inspection is easy, in addition, the construction method is convenient to organize the cross line production, the work efficiency can be improved, and the construction period can be shortened; the turnover materials and auxiliary facilities can be effectively reduced, the technical requirements on constructors are relatively low, and the construction cost is saved.
Description
Technical Field
The invention relates to the technical field of steel structure building modularization installation, in particular to a steel structure industrial building modularization installation method.
Background
The steel structure factory building has been widely accepted in the building engineering due to the characteristics of high construction speed, light dead weight, good earthquake resistance, environmental protection and the like, and is generally applied to industrial factory buildings instead of heavy reinforced concrete structures. The steel structure factory building is not applied for a long time in China, and the specific design and construction skills of the steel structure factory building are still in an exploration stage. The existing installation and construction method for the portal steel structure factory building comprises the following steps: the installation of the portal rigid frame is carried out according to the arrangement sequence of the building plane, namely a scattered splicing method, when a single rigid frame crane is installed, wind power or other disturbing power outside the plane cannot be borne, generally, the construction and installation of the portal rigid frame are carried out in bulk sequentially from one rigid frame to another, each unconnected rigid frame is in an extremely unstable state, and when the method is adopted for installation, overturning and collapsing accidents easily occur, the stability of the portal rigid frame is poor, and the overturning and collapsing accidents easily occur; and because the high-altitude operation amount is large, the quality is difficult to control, the construction speed is slow, and the construction cost is increased.
Disclosure of Invention
The modularized installation method for the steel structure industrial building provided by the invention solves the problem of difficult construction.
In order to achieve the purpose, the invention adopts the following technical scheme:
a modular installation method for a steel structure industrial building comprises the following steps:
s1: cleaning the ground, drawing a positioning label on the base surface, measuring the ground elevation and preparing a cushion block;
s2: simultaneously with the step S1, mounting a connecting plate at the top end of the upright post at another station, shifting the upright post to the position where the positioning label is drawn, placing the upright post, and marking the position 1m below the bracket;
s3: assembling the roof hoisting unit at another station while performing the step S2, and shifting to a safe position;
s4: hoisting the front 4 upright columns, hoisting the hoisting units completed in the step S3 to 4 upright columns to form a complete structure, hoisting the two rear parallel upright columns, hoisting the steel frame as a whole, and sequentially carrying out integral installation according to the sequence.
S5: and (5) detecting and fastening the spliced whole, and checking and accepting.
Preferably, in the step S4, the column is hoisted by using a rotary hoisting method, and the steel column bottom plate is aligned with the cross center line of the embedded plate.
Preferably, the rotary hoisting method comprises the following steps:
a1: the crane rotates while lifting the hook to enable the column to rotate around the column foot to lift the steel column, the lifting is stopped when the height of one lifted end is 100-200 mm, and the firmness of the rigging, the stability of the crane and the verticality of the steel column are checked;
a2: slowly descending the crane, placing the crane along the central axis at 90 degrees by using two theodolites, adjusting and debugging the position, correcting the position and the verticality of the column, and slowly descending the column base plate and the pre-buried plate after aligning the positions of the cross central lines;
a3: controlling the verticality and the center deviation of the column by using a theodolite, stabilizing a column base by an operator after a steel column is hung above a bolt, aligning a reserved hole on a column foot plate with the bolt, inserting the bolt, stopping falling into a groove when the column is lowered onto an adjusting nut, prying the column by using a crowbar, aligning the center line of the column with the center line of the foundation, and screwing a column base nut;
a4: and (5) checking and reinforcing.
Preferably, the assembling of the hoisting unit comprises the following steps:
b1: splicing two steel beams, and connecting and installing a plurality of purlines between the two steel beams;
b2: and a plurality of inter-purlin supports and a plurality of inter-purlin diagonal supports are connected and installed between adjacent purlins.
B3: fixing, checking and accepting.
Preferably, the integral mounting comprises the steps of:
c1: synchronously hoisting one hoisting unit by two truck cranes, carrying out test hoisting before hoisting, firstly hoisting for 50mm, stopping hoisting, standing for ten minutes, and observing the deformation and the integral stability of the integral hoisting unit;
c2: adjusting the hoisting speed of the two cranes according to the deformation condition, and continuously and synchronously hoisting after the adjustment is finished;
c3: after the integral hoisting unit is in place, two crank arm vehicles are used for high-altitude operation, high-strength bolts between the beam columns are installed, and after the high-strength bolts are installed, the hook of the crane is loosened.
Preferably, the connecting plate includes the cover post that is connected with the stand, the spread groove that fixedly connected with equidistance all around of cover post set up, the both sides of spread groove are provided with supplementary hole, be provided with a plurality of first screw holes on the bottom plate of spread groove, the top of stand is provided with the second screw hole, the both sides of stand are provided with a plurality of third screw holes, one side of spread groove is connected with the arc elastic plate.
Preferably, the auxiliary hole is internally provided with an auxiliary mechanism, the bottom end of the upright post is rotatably connected with a plurality of guide plates through hinges, and one side of the upright post is fixedly connected with a supporting plate connected with a connecting groove.
Preferably, the auxiliary mechanism comprises a movable column which is in sliding sleeve connection with the wall of the auxiliary hole, one side of the movable column is fixedly connected with a spring which is located in the auxiliary hole, and one side of the movable column is fixedly connected with a pull rope which penetrates through the auxiliary hole.
Preferably, the base comprises an outermost protective box, the periphery of the protective box is fixedly connected with first springs, the other ends of the first springs are fixedly connected with movable covers which are in sliding sleeve joint with the protective box, elastic plates are fixedly connected among the four movable covers, a first arc-shaped plate fixedly connected with the movable covers is arranged above the elastic plates, a second arc-shaped plate is fixedly connected with the lower side of the first arc-shaped plate, a plurality of second springs are fixedly connected between the first arc-shaped plate and the second arc-shaped plate, a plurality of third springs are fixedly connected with the top of the first arc-shaped plate, a balance plate slidably connected with the movable covers is fixed at the other ends of the third springs, a placing plate is placed on the upper side of the balance plate, a plurality of support columns are fixedly connected with the upper side of the placing plate, splicing plates are fixedly connected with the upper sides of the support columns, and the splicing plates are fixedly welded with the vertical columns, the device comprises a balance plate, a placing plate, a movable cover, a plurality of supporting rods, a plurality of baffle plates, a plurality of guide pipes, a hose, a baffle box, a plurality of baffle plates, a filter screen, a guide pipe, a pushing box, a supporting shaft, a plurality of pushing plates and a damping box, wherein the balance plate is connected with the plurality of limiting strips in a rotating manner, the connecting block is sleeved on the limiting strips, the connecting groove corresponding to the connecting block is arranged on the placing plate, the stabilizing pipe is fixedly connected to one side of the movable cover, the hose is fixedly connected to the other end of the stabilizing pipe, the baffle box is fixedly connected to the other end of the hose, the plurality of baffle plates are fixedly connected in the baffle box, the filter screen is fixedly connected with the baffle box on one side of the baffle plate, the guide pipe is fixedly connected to the other end of the baffle box, the pushing box is rotatably connected to the pushing box, the outer wall of the supporting shaft is fixedly connected with the plurality of pushing plates in the pushing box, one end of the supporting shaft is rotatably connected with the damping box outside the damping box, the other end of the supporting shaft is connected with a generator positioned outside the pushing box.
Preferably, a plurality of mounting holes are formed in the splicing plates, a plurality of sand leakage holes are formed in the first arc-shaped plate and the second arc-shaped plate, and the upper side of the first arc-shaped plate is fixedly connected with a threaded rod which is in sliding sleeve connection with the balance plate.
The invention has the beneficial effects that:
1: a large amount of high-altitude operation can be completed on the ground through a plurality of operations on the ground, so that the workload of the high-altitude operation is reduced, and the safety risk is reduced; meanwhile, a large amount of work is carried out on the ground, the inspection is easy, installation errors can be found and corrected in time, and the control of the construction quality of the steel structure is facilitated.
2: a plurality of working procedures are carried out simultaneously, so that the cross flow production is convenient to organize, the working efficiency can be improved, and the construction period can be shortened; the turnover materials and auxiliary facilities can be effectively reduced, the technical requirements on constructors are relatively low, and the construction cost is saved.
3: through the buffering of base etc. can be so that the installation accomplish the back, whole frame is in certain dynamic balance, reduces the stand fracture that the part impact caused and even the factory building collapses, guarantees overall structure's safety.
Drawings
FIG. 1 is a schematic diagram of a component stacking and crane hoisting path according to the present invention;
FIG. 2 is a schematic view of a hoisting unit according to the present invention;
FIG. 3 is a schematic view of a connection plate according to the present invention;
FIG. 4 is a schematic cross-sectional front view of a connection plate according to the present invention;
FIG. 5 is a partial left side view of a connection plate according to the present invention;
FIG. 6 is a schematic cross-sectional front view of a base according to the present invention;
FIG. 7 is a schematic top view of a base according to the present invention;
fig. 8 is a left side view of the base according to the present invention.
Reference numbers in the figures: 1. sleeving a column; 2. a third threaded hole; 3. a guide-in plate; 4. a first threaded hole; 5. an auxiliary hole; 6. connecting grooves; 7. an arc-shaped elastic plate; 8. a second threaded hole; 9. a support plate; 10. moving the column; 11. a spring; 12. pulling a rope; 20. a protective box; 21. a first spring; 22. a movable cover; 23. a stabilizer tube; 24. a buffer plate; 25. a buffer tank; 26. a push plate; 27. a push box; 28. a hose; 29. a filter screen; 30. a flow guide pipe; 31. a support shaft; 32. an elastic plate; 33. a second arc-shaped plate; 34. a second spring; 35. a first arc-shaped plate; 36. a third spring; 37. a sand leakage hole; 38. a restriction strip; 39. splicing plates; 41. a support pillar; 42. placing the plate; 43. a balance plate; 44. mounting holes; 45. a threaded rod; 46. connecting blocks; 47. connecting grooves; 48. a generator; 49. a damping plate; 50. a damping box.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1, a modular installation method for a steel structure industrial building includes the following steps:
s1: the ground is cleaned, the positioning label is drawn on the base surface, the ground elevation is measured, the cushion block is prepared, the ground is cleaned up, the preparation of follow-up work is guaranteed, the leveling is carried out simultaneously, and the stress generation in the later stage is reduced.
S2: and while the step S1 is carried out, the top end of the upright post is provided with a connecting plate at another station, the upright post is shifted to the position where the positioning label is drawn to be placed, the position 1m below the bracket is marked, and the connecting plate is convenient for the subsequent hoisting work to stabilize the upright post.
S3: when step S2 goes on, assemble roofing hoist and mount unit at another station to shift to safe position, hoist and mount unit carries out holistic the assembling near station equally, reduces the Yuan of major possession object.
S4: hoisting the front 4 stand columns, hoisting the hoisting units completed in the step S3 to 4 stand columns to form a complete structure, hoisting the two parallel stand columns, hoisting the steel frame to be integral, sequentially carrying out integral installation in the sequence, and sequentially assembling after hoisting in the sequence shown in figure 1 to ensure the stability of the integral framework.
S5: the spliced whole is detected and fastened, acceptance is carried out, and the stability of subsequent continuous work is ensured through fastening.
And S4, hoisting the upright column by adopting a rotary hoisting method, and aligning the steel column bottom plate with the cross center line of the embedded plate.
The rotary hoisting method comprises the following steps:
a1: and the crane rotates while lifting the hook to enable the column to rotate around the column base to lift the steel column, the lifting is stopped when the height of one lifted end is 100-200 mm, the firmness of the rigging, the stability of the crane and the verticality of the steel column are checked, and the stability of each lifting is ensured through stopping checking.
A2: slowly descending the crane, placing the crane along the central axis at 90 degrees by using two theodolites, adjusting and debugging the position, correcting the position and the verticality of the column, and slowly descending the column base plate and the pre-buried plate after aligning the positions of the cross central lines;
a3: controlling the verticality and the center deviation of the column by using a theodolite, stabilizing a column base by an operator after a steel column is hung above a bolt, aligning a reserved hole on a column foot plate with the bolt, inserting the bolt, stopping falling into a groove when the column is lowered onto an adjusting nut, prying the column by using a crowbar, aligning the center line of the column with the center line of the foundation, and screwing a column base nut;
a4: and (5) checking and reinforcing.
The assembling of the hoisting unit comprises the following steps:
b1: splicing two steel beams, and connecting and mounting a plurality of purlins between the two steel beams;
b2: and a plurality of inter-purlin supports and a plurality of inter-purlin diagonal supports are connected and installed between adjacent purlins.
B3: fixing, checking and accepting.
The integral installation comprises the following steps:
c1: two truck cranes synchronously lift one hoisting unit, test hoisting is carried out before hoisting, hoisting is firstly carried out for 50mm, hoisting is stopped, standing is carried out for ten minutes, deformation and integral stability of the integral hoisting unit are observed, hoisting is stopped, and stability of hoisting is further guaranteed.
C2: adjusting the hoisting speed of the two cranes according to the deformation condition, and continuously and synchronously hoisting after the adjustment is finished;
c3: after the integral hoisting unit is in place, two crank arm vehicles are used for high-altitude operation, high-strength bolts between the beam columns are installed, and after the high-strength bolts are installed, the hook of the crane is loosened.
The connecting plate comprises a sleeve column 1 connected with an upright column, connecting grooves 6 which are arranged at equal intervals are fixedly connected around the sleeve column 1, auxiliary holes 5 are arranged at two sides of each connecting groove 6, a plurality of first threaded holes 4 are arranged on a bottom plate of each connecting groove 6, a second threaded hole 8 is arranged at the top end of each upright column 1, a plurality of third threaded holes 2 are arranged at two sides of each upright column 1, one side of each connecting groove 6 is connected with an arc-shaped elastic plate 7, when the connecting plate is installed, a steel beam is placed in each connecting groove 6, three sides of the steel beam are limited through U-shaped notches of the connecting grooves 6, meanwhile, the arc-shaped elastic plates 7 are used for elastic positioning, so that connecting holes in the steel beam correspond to the third threaded holes 2 and the first threaded holes 4, meanwhile, the third threaded holes 2 and the first threaded holes 4 adopt rectangular structures and adapt to certain degree of cold contraction, and the steel beam can slide in the connecting grooves 6 within a certain range, at the same time, the arc-shaped elastic plate 7 is pressurized as necessary so that the pressure is within a certain range.
Be provided with complementary unit in the auxiliary hole 5, the bottom of stand 1 is rotated through the hinge and is connected a plurality of leading-in boards 3 that have, and one side fixedly connected with of stand 1 has the backup pad 9 that is connected with spread groove 6, and complementary unit carries out supplementary location and prescribes a limit to, and is easy to assemble, and leading-in board 3 makes things convenient for the steel column to enter into in the stand 1.
The complementary unit includes the removal post 10 that cup joints with 5 pore walls of auxiliary hole slip, and one side fixedly connected with that removes post 10 is located the spring 11 of auxiliary hole 5, and one side fixedly connected with that removes post 10 runs through the stay cord 12 of auxiliary hole 5, advances the effect of spring 11, can be so that remove post 10 and enter into the girder steel in, carry out the injecing in initial stage, guarantee overall structure's stability, and convenient subsequent continuation is fixed, reduction in production risk.
The base comprises an outermost protective box 20, first springs 21 are fixedly connected to the periphery of the protective box 20, the other ends of the first springs 21 are fixedly connected with movable covers 22 in sliding sleeve connection with the protective box 20, elastic plates 32 are fixedly connected among the four movable covers 22, first arc-shaped plates 35 fixedly connected with the movable covers 22 are arranged above the elastic plates 32, second arc-shaped plates 33 are fixedly connected to the lower sides of the first arc-shaped plates 35, a plurality of second springs 34 are fixedly connected between the first arc-shaped plates 35 and the second arc-shaped plates 33, a plurality of third springs 36 are fixedly connected to the tops of the first arc-shaped plates 35, balance plates 43 in sliding connection with the movable covers 22 are fixed to the other ends of the third springs 36, placing plates 42 are placed on the upper sides of the balance plates 43, a plurality of supporting columns 41 are fixedly connected to the upper sides of the placing plates 42, splicing plates 39 are fixedly connected to the upper sides of the supporting columns 41, and the splicing plates 39 are fixedly welded with the columns, a plurality of limiting strips 38 are rotatably connected to the balancing plate 43, a connecting block 46 is sleeved on the limiting strips 38, a connecting groove 47 corresponding to the connecting block 46 is arranged on the placing plate 42, a stabilizing pipe 23 is fixedly connected to one side of the movable cover 22, a hose 28 is fixedly connected to the other end of the stabilizing pipe 23, a buffer box 25 is fixedly connected to the other end of the hose 28, a plurality of buffer plates 24 are fixedly connected to the inside of the buffer box 25, a filter screen 29 fixedly connected to the buffer box 25 is fixedly connected to one side of the buffer plate 24, a guide pipe 30 is fixedly connected to one side of the buffer box 25, a push box 27 is fixedly connected to the other end of the guide pipe 30, a supporting shaft 31 is rotatably connected to the push box 27, a plurality of push plates 26 positioned in the push box 27 are fixedly connected to the outer wall of the supporting shaft 31, a damping box 50 positioned outside the push box 27 is rotatably connected to one end of the supporting shaft 31, a plurality of damping plates 49 positioned in the damping box 50 are fixedly connected to the outer wall of the supporting shaft 31, the other end of the supporting shaft 31 is connected with a generator 48 located outside the pushing box 27, when the installation is carried out, the surface of the protection box 20 is coated with waterproof and anticorrosive materials, then the protection box is placed in a built cement groove to complete the preliminary installation, then the space above the elastic plate 32 is filled with yellow sand and stones to ensure the subsequent buffering and energy absorption, when the steel structure framework is installed, the splicing plate 39 fixedly welded with the upright column, the supporting column 41 and the placing plate 42 are placed on the balance plate 43, then the limiting strip 38 is rotated to enable the connecting block 46 to enter the connecting groove 47 to complete the preliminary limitation, after the installation of the upright column is completed, the threaded rod 45 is sleeved with a nut to level the balance plate 43, so that the upright column is in a vertical state to ensure the installation of the subsequent work, and in the use process, the external vibration passes through the third spring 36, The buffering of second spring 34, first arc 35 and yellow sand etc. realizes necessary buffering, the external impact makes movable cover 22 remove simultaneously, and then change the space between movable cover 22 and the guard box 20, and then make inside liquid pass through the stabilizator pipe 23, the buffer tank 25 back enters into honeycomb duct 30, further enter into and promote the case 27, and then promote the pushing plate 26 and rotate, enter into another space from another honeycomb duct 30, at the pivoted in-process of back shaft 31, through external transmission, make damping plate 49 rotate, and the work of generator 48, carry out the conversion of energy, realize the buffering.
Be provided with a plurality of mounting holes 44 on the splice plate 39, all be provided with a plurality of hourglass sand hole 37 on first arc 35 and the second arc 33, the upside fixedly connected with of first arc 33 and balance plate 43 slip threaded rod 45 that cup joints.
The working principle is as follows: before hoisting, thoroughly removing garbage and accumulated water on the column foundation and the periphery, chiseling the surface of the concrete foundation again, removing impurities such as dust and the like, marking a cross line for installing the steel column on the foundation, rechecking the embedded bolt, and judging whether the axis position, the elevation and the extending length of the bolt meet the design requirements. Cleaning the protective film of the bolt thread, and applying an adhesive tape to rebinding the anchor bolt with the damaged protective film. Checking whether the screw thread is intact, measuring the elevation of the top surface of the basic concrete, preparing iron cushion blocks with different thicknesses according to the measuring result, marking a control line for installation on the surface of the member as the basis for correction, rechecking the strength of a steel wire rope and a lifting appliance before lifting, checking whether the steel wire rope and the lifting appliance have defects and potential safety hazards, connecting and fixing a steel column with a connecting beam, an inter-column support, a cross support and the like after correcting every steel column, transporting the steel column to the site, rotating the column around a column foot by a crane while lifting a hook, lifting the steel column, and mainly comprising the processes of binding → lifting → aligning → temporary fixing → correcting → final fixing. After the preparation work is ready before hoisting, firstly trial hoisting is carried out, hoisting is stopped when the height of one end of the hoisting is 100-200 mm, the firmness of a rigging, the stability of a crane and the verticality of a steel column are checked, then the crane is commanded to descend slowly, two theodolites are placed along the central axis at 90 degrees, the position is adjusted and debugged so as to correct the position and the verticality of the column, the column bottom plate and the cross central line of a pre-embedded plate are slowly lowered after being aligned, meanwhile, the verticality and the central deviation of the column are controlled by the theodolites, an operator stands the position respectively after the steel column is hoisted above a bolt, the reserved hole on the column foot plate is aligned with the bolt to stably hold the column foot, the bolt is inserted, the column stops falling into a groove when the column is lowered onto an adjusting nut, a stick is used for prying the column, the central line of the column is aligned with the central line of a foundation, and the nut of the column foot is screwed, so that the lifting hook can be picked safely. For the upright post of a single unstable structure, temporary protection measures of the wind cable are required. The hoisting group is definite in work division before hoisting, appliances such as measurement, hoisting and fastening are complete, quality safety engineers such as cranes, commanders, measurement, alignment, binding and site construction are responsible, access of idle personnel is reduced as much as possible, and the portal rigid frame steel structures with two adjacent column distances in the same span are assembled on the ground to be used as a roof integral hoisting unit; sequentially comprises the following steps: two steel beams are assembled, a plurality of purlins are connected and installed between the two steel beams, a plurality of supports among the purlins and a plurality of inclined supports among the purlins are connected and installed between the adjacent purlins, and the assembled roof integral hoisting unit forms a structure with unchanged geometry and space stability. After the assembly of the adjacent steel beams is completed, secondary members such as purlins and supporting systems between the two steel beams are installed, then the two cranes are used for synchronous lifting, the two cranes must synchronously lift and hang according to unified commands, and overlarge construction stress caused by asynchronous lifting is avoided. And (4) trial hoisting is carried out before hoisting, 50mm hoisting is carried out firstly, and hoisting is stopped. Standing for ten minutes, and observing the deformation and the integral stability of the integral hoisting unit. The hoisting speed of the two cranes is adjusted according to the deformation condition, the cranes are continuously and synchronously hoisted after the adjustment is completed, after the integral hoisting unit is in place, the two crank arm vehicles are utilized to perform high-altitude operation, high-strength bolts between beam columns are installed, after the high-strength bolts are installed, the cranes are hooked loosely, the next hoisting unit is installed until the whole portal rigid frame steel structure workshop is completely hoisted, and after the installation is completed, fixing bolts are installed through the first threaded holes 4, the second threaded holes 8, the third threaded holes 2 and the like to further stabilize and fix the whole portal rigid frame steel structure workshop, so that the stability of the whole portal rigid frame steel structure workshop is ensured.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (10)
1. The modular installation method for the steel structure industrial building is characterized by comprising the following steps:
s1: excavating a hole at a designated position in the early stage, and mounting a base;
s2: cleaning the ground, drawing a positioning label on the base, measuring the ground elevation and preparing a cushion block;
s3: simultaneously with the step S2, mounting a connecting plate at the top end of the upright post at another station, shifting the upright post to the position where the positioning label is drawn, placing the upright post, and marking the position 1m below the bracket;
s4: assembling a roof hoisting unit at another station and shifting to a safe position while the step S3 is carried out;
s5: hoisting the front 4 upright columns, hoisting the hoisting units completed in the step S4 to 4 upright columns to form a complete structure, hoisting the two rear parallel upright columns, hoisting the steel frame as a whole, and sequentially carrying out integral installation according to the sequence.
S6: and (5) detecting and fastening the spliced whole, and checking and accepting.
2. The modular installation method for steel structure industrial buildings according to claim 1, wherein the column in the step S5 is hoisted by a rotary hoisting method, and the steel column bottom plate is aligned with the cross center line of the embedded plate.
3. The modular installation method for industrial buildings with steel structures as claimed in claim 2, characterized in that the rotary hoisting method comprises the following steps:
a1: the crane rotates while lifting the hook to enable the column to rotate around the column foot to lift the steel column, the lifting is stopped when the height of one lifted end is 100-200 mm, and the firmness of the rigging, the stability of the crane and the verticality of the steel column are checked;
a2: slowly descending the crane, placing the crane along the central axis at 90 degrees by using two theodolites, adjusting and debugging the position, correcting the position and the verticality of the column, and slowly descending the column base plate and the pre-buried plate after aligning the positions of the cross central lines;
a3: controlling the verticality and the center deviation of the column by using a theodolite, stabilizing a column base by an operator after a steel column is hung above a bolt, aligning a reserved hole on a column foot plate with the bolt, inserting the bolt, stopping falling into a groove when the column is lowered onto an adjusting nut, prying the column by using a crowbar, aligning the center line of the column with the center line of the foundation, and screwing a column base nut;
a4: and (5) checking and reinforcing.
4. The modular installation method for the steel structure industrial building according to claim 1, wherein the assembling of the hoisting unit comprises the following steps:
b1: splicing two steel beams, and connecting and mounting a plurality of purlins between the two steel beams;
b2: and a plurality of inter-purlin supports and a plurality of inter-purlin diagonal supports are connected and installed between adjacent purlins.
B3: fixing, checking and accepting.
5. The modular installation method for steel structure industrial buildings according to claim 1, characterized in that the integral installation comprises the following steps:
c1: synchronously hoisting one hoisting unit by two truck cranes, carrying out test hoisting before hoisting, firstly hoisting for 50mm, stopping hoisting, standing for ten minutes, and observing the deformation and the integral stability of the integral hoisting unit;
c2: adjusting the hoisting speed of the two cranes according to the deformation condition, and continuously and synchronously hoisting after the adjustment is finished;
c3: after the integral hoisting unit is in place, two crank arm vehicles are used for high-altitude operation, high-strength bolts between the beam columns are installed, and after the high-strength bolts are installed, the hook of the crane is loosened.
6. The modular installation method of the steel structure industrial building, according to claim 1, characterized in that the connecting plate comprises a sleeve column (1) connected with a stand column, connecting grooves (6) are fixedly connected around the sleeve column (1) and are equidistantly arranged, auxiliary holes (5) are arranged on two sides of each connecting groove (6), a plurality of first threaded holes (4) are arranged on a bottom plate of each connecting groove (6), a second threaded hole (8) is arranged at the top end of the stand column (1), a plurality of third threaded holes (2) are arranged on two sides of the stand column (1), and an arc-shaped elastic plate (7) is connected to one side of each connecting groove (6).
7. The modular installation method for steel structure industrial buildings according to claim 6, characterized in that an auxiliary mechanism is arranged in the auxiliary hole (5), the bottom end of the upright post (1) is rotatably connected with a plurality of guide plates (3) through hinges, and one side of the upright post (1) is fixedly connected with a support plate (9) connected with the connecting groove (6).
8. The modular installation method for the steel structure industrial building is characterized in that the auxiliary mechanism comprises a moving column (10) which is in sliding sleeve connection with the wall of the auxiliary hole (5), one side of the moving column (10) is fixedly connected with a spring (11) which is positioned in the auxiliary hole (5), and one side of the moving column (10) is fixedly connected with a pull rope (12) which penetrates through the auxiliary hole (5).
9. The modular installation method of steel structure industrial buildings according to claim 1, characterized in that: the base comprises an outermost protective box (20), the periphery of the protective box (20) is fixedly connected with a first spring (21), the other end of the first spring (21) is fixedly connected with a movable cover (22) which is in sliding sleeve joint with the protective box (20), four movable covers (22) are fixedly connected with an elastic plate (32), a first arc-shaped plate (35) fixedly connected with the movable cover (22) is arranged above the elastic plate (32), the lower side of the first arc-shaped plate (35) is fixedly connected with a second arc-shaped plate (33), a plurality of second springs (34) are fixedly connected between the first arc-shaped plate (35) and the second arc-shaped plate (33), the top of the first arc-shaped plate (35) is fixedly connected with a plurality of third springs (36), and the other end of the third spring (36) is fixed with a balance plate (43) which is in sliding connection with the movable cover (22), a placing plate (42) is placed on the upper side of the balance plate (43), a plurality of supporting columns (41) are fixedly connected to the upper side of the placing plate (42), splicing plates (39) are fixedly connected to the upper sides of the supporting columns (41), the splicing plates (39) are fixedly welded with the stand columns, a plurality of limiting strips (38) are rotatably connected to the balance plate (43), connecting blocks (46) are sleeved on the limiting strips (38), connecting grooves (47) corresponding to the connecting blocks (46) are formed in the placing plate (42), a stabilizing pipe (23) is fixedly connected to one side of the movable cover (22), a hose (28) is fixedly connected to the other end of the stabilizing pipe (23), a buffer box (25) is fixedly connected to the other end of the hose (28), a plurality of buffer plates (24) are fixedly connected to the interior of the buffer box (25), a filter screen (29) fixedly connected to the buffer box (25) is fixedly connected to one side of the buffer plate (24), one side fixedly connected with honeycomb duct (30) of baffle-box (25), and the other end fixedly connected with of honeycomb duct (30) promotes case (27), it is connected with back shaft (31) to promote case (27) internal rotation, a plurality of sludgers (26) that are located in promotion case (27) of outer wall fixedly connected with of back shaft (31), the one end of back shaft (31) rotates and is connected with and is located the outer damping box (50) of promotion case (27), a plurality of damping plates (49) that are located damping box (50) of outer wall fixedly connected with of back shaft (31), the other end of back shaft (31) is connected with and is located the outer generator (48) of promotion case (27).
10. The modular installation method for the steel structure industrial building according to claim 9, wherein a plurality of installation holes (44) are formed in the splicing plates (39), a plurality of sand leakage holes (37) are formed in the first arc-shaped plate (35) and the second arc-shaped plate (33), and a threaded rod (45) which is in sliding sleeve connection with the balance plate (43) is fixedly connected to the upper side of the first arc-shaped plate (33).
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