CN107327068B - Steel structure truss string system roof ceiling structure and construction method thereof - Google Patents
Steel structure truss string system roof ceiling structure and construction method thereof Download PDFInfo
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- CN107327068B CN107327068B CN201710675320.0A CN201710675320A CN107327068B CN 107327068 B CN107327068 B CN 107327068B CN 201710675320 A CN201710675320 A CN 201710675320A CN 107327068 B CN107327068 B CN 107327068B
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B7/00—Roofs; Roof construction with regard to insulation
- E04B7/02—Roofs; Roof construction with regard to insulation with plane sloping surfaces, e.g. saddle roofs
- E04B7/022—Roofs; Roof construction with regard to insulation with plane sloping surfaces, e.g. saddle roofs consisting of a plurality of parallel similar trusses or portal frames
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Abstract
The invention provides a steel structure truss string system roof suspended ceiling structure, which comprises a truss string system, a roof and a suspended ceiling frame, wherein the suspended ceiling frame is arranged below an upper chord beam of the truss string system through a plurality of suspension columns; the top ends of the plurality of suspension posts are vertically connected to two sides of an upper chord beam of the truss string system through suspension post connecting pieces, and the lower ends of the suspension posts are provided with suspended ceiling connecting pieces; the ceiling frame comprises a plurality of ceiling truss units, and the edges of the ceiling truss units are connected with the ceiling connecting pieces of the hanging columns; the suspended ceiling structure of the roof has the characteristics of simple structure, firmness and easiness in construction. A construction method of the roof suspended ceiling structure is also provided, and the steps are as follows: 1. mounting a hanging post connecting piece, a hanging post and an electric hoist; 2. a suspended ceiling truss unit; 3. laying a fan, a ventilation pipe and a fire water monitor; 4. paving the ceiling; 5. hoisting the suspended ceiling truss unit; 6. connecting the suspended ceiling truss unit with the hanging columns; 7. repeating steps 2 to 6; the construction method has the characteristics of convenience, rapidness and safety in construction.
Description
Technical Field
The invention relates to the field of building construction, in particular to a suspended ceiling structure in a steel structure truss string system building and a construction method thereof.
Background
The applicant earlier applied a large-span double-box Liang Shuangsuo truss string system with application number 201520282803.0, which comprises a plurality of truss string trusses, wherein each truss string truss is formed by connecting a lower chord stay cable and an upper chord beam, each upper chord beam is formed by connecting 2 arc steel beams through steel beam connecting pieces, two ends of each upper chord beam are respectively supported by 2 steel upright posts, and a plurality of purlins are connected between the upper chord beams of the adjacent 2 truss string trusses to enable the truss string trusses to be sequentially connected at intervals. The construction method of the suspended ceiling in the building is generally as follows: and (3) erecting a scaffold in the building, conveying the suspended ceiling to the lower part of the upper chord beam one by one through a lifting device, and finishing the fixed connection of the suspended ceiling and the upper chord beam steel beam by using the scaffold as an operation platform by constructors. The construction method has the following defects: the building is usually large in span and high in height, the workload for building the scaffold is very large, the related specifications require that the building height of a common fastener type steel pipe scaffold cannot exceed 40 meters, and other section steel support frames are adopted as an operation platform to ensure the construction safety when the building height exceeds 40 meters, so that the construction cost is high and the construction efficiency is low; there is therefore a need for improvement.
Disclosure of Invention
The invention aims to provide a steel structure truss string system roof ceiling structure which has the characteristics of simple structure, firmness and easiness in construction, and also provides a construction method of the steel structure truss string system roof ceiling structure, which has the characteristics of high construction safety and low cost, can be matched with the installation of ventilation and fire-fighting facilities in a ceiling, and has the characteristics of convenience, rapidness and safety in construction.
The purpose of the invention can be realized by the following technical scheme:
the steel structure truss string system roof suspended ceiling structure comprises a truss string system, a roof and a suspended ceiling frame, wherein the truss string system comprises a plurality of truss string systems and purlins, each truss string system is formed by connecting an upper chord beam, a lower chord stay cable, steel upright posts, stay bars and diagonal draw bars, the upper chord beam is a double-box structure formed by connecting 2 arc-shaped steel beams, two ends of the upper chord beam are respectively supported by the 2 steel upright posts, the 2 lower chord stay cables are respectively connected with two ends of the 2 arc-shaped steel beams of the upper chord beam, and the upper chord beam and the lower chord stay cables are connected in a tensioned manner by arranging stay bars and diagonal draw bars between the lower chord stay cables and the arc-shaped steel beams; a plurality of purlines are connected between the upper chord beams of the adjacent 2 truss string trusses to ensure that the truss string trusses are sequentially connected at intervals; the roof is formed by aligning and splicing a plurality of roof plates, the roof is fixed on a truss connecting rod of the truss-chord truss system, and the suspended ceiling frame is arranged below the truss-chord truss system through a plurality of suspension posts.
The hanging columns are of square or round tubular structures which are vertically arranged, the lower ends of the hanging columns are provided with ceiling connecting pieces, and the top ends of the hanging columns are vertically connected to the two sides of the upper chord beams of the truss string through the hanging column connecting pieces, so that two sides of each truss string are provided with 2 groups of symmetrical hanging column rows.
The suspended ceiling frame comprises a plurality of suspended ceiling truss units, each suspended ceiling truss unit is provided with a vertical rod and 2 layers of bent frames, and each bent frame is a net-shaped frame formed by connecting a plurality of transverse rods and a plurality of longitudinal rods in a criss-cross mode; and a plurality of vertical rod ends are connected between the transverse rods or the longitudinal rods of the adjacent 2 layers of bent frames.
The edge parts of the ceiling truss units are connected with the ceiling connecting pieces of the hanging columns, and the plurality of ceiling truss units are combined to form a ceiling frame.
According to the optimized scheme, in the steel structure truss string system roof suspended ceiling structure, the suspended ceiling connecting piece at the lower end of the suspended column is a suspended column ear plate, the suspended column ear plate is provided with an ear plate through hole, the end part of the transverse rod of the suspended ceiling truss unit is provided with a transverse rod through hole, and the suspended ceiling truss unit is fixedly connected with the suspended column through the transverse rod through hole, the ear plate through hole of the suspended column and a bolt.
According to the further optimized scheme, in the steel structure truss string system roof suspended ceiling structure, one end part of the longitudinal rod of each suspended ceiling truss unit is provided with the longitudinal rod insertion part, and the end parts of every two adjacent suspended ceiling truss units are connected in an inserted mode through the longitudinal rod insertion parts.
In the ceiling structure of the steel structure truss string system roof, the suspension post connecting piece comprises a cross post, a screw and a bottom plate.
The transverse column is of a square tubular structure, transverse column wall plates are arranged on the side walls of the transverse columns, 2 symmetrical transverse plate parts are arranged on two sides of each transverse column, the transverse columns are transversely arranged above the upper chord beams of the truss string, and two symmetrical 2 pairs of screw top through holes are formed in the two sides of each arc-shaped steel beam, corresponding to the upper chord beams, on the transverse plate parts of the transverse column wall plates; the bottom plate is a four-hole bottom plate, and the four-hole bottom plate is provided with 2 pairs of screw bottom through holes corresponding to the screw top through holes of the transverse column wall plate; the 2 four-hole bottom plates are arranged below the upper chord beam of the truss string and correspond to the transverse column wall plates of the transverse columns up and down.
The screw rods comprise 8 screw rod top through holes on the corresponding transverse columns and screw rod bottom through holes on the bottom plate, and the two ends of each screw rod are respectively in threaded connection with a top nut and a bottom nut, so that the transverse column wall plates and the bottom plate of the transverse columns respectively compress the arc-shaped steel beams of the upper chord girder, and the hanging column connecting pieces are fixedly connected to the upper chord girder of the truss.
The both ends of spreader are located the spreader perforation that has on the spreader portion of spreader wallboard, the top of davit has the connection end plate, connect the end plate have with the spreader perforation of the spreader perforation butt joint of spreader tip, 2 davits correspond the both ends of connecting in the spreader of davit connecting piece through bolt, davit perforation and spreader perforation respectively.
In a further optimized scheme, in the suspended ceiling structure of the steel structure truss string system roof, the base plate further comprises a double-hole base plate, the double-hole base plate is a half of a four-hole base plate and is provided with 1 pair of screw bottom through holes, and 2 double-hole base plates are arranged in a parallel and overlapped mode below 1 four-hole base plate.
The invention relates to a construction method of a steel structure truss string system roof suspended ceiling structure, wherein a suspended ceiling frame is erected on a truss string system, and the construction method comprises the following steps:
step 1, marking erection column connecting piece mounting positions on 2 arc-shaped steel beams of an upper chord beam in a truss string system, wherein the erection column connecting piece mounting positions are located within 0.5 meter of an upper node of a support rod; the working platform of the overhead working truck is used as a personnel operating platform, the suspension post connecting piece and the suspension post are sequentially arranged on the upper chord beam of the open-chord truss system, and meanwhile, a plurality of electric hoists are arranged on the upper chord beam of the open-chord truss system corresponding to the mounting positions of the suspended ceiling truss units.
And 2, arranging the ceiling truss units below the installation positions, connecting the lifting hook ends of the electric hoists installed in the step 1 to the ceiling truss units, enabling two ends or two sides of each ceiling truss unit to correspond to 2 pairs of symmetrical electric hoists, starting the electric hoists to enable the ceiling truss units to stably rise, stopping hoisting after the ceiling truss units rise to a distance of 1.8-2.2 meters from the construction ground, and temporarily supporting the ceiling truss units by temporary supporting frames.
And 3, laying indoor facilities on the top of the suspended ceiling truss unit in the step 2, wherein the indoor facilities comprise a fan, a ventilation pipe and a fire water monitor.
And 4, paving a ceiling at the bottom of the ceiling truss unit in the step 3, wherein the ceiling comprises a ceiling keel connected to the ceiling truss unit and a plurality of ceilings installed on the ceiling keel.
And 5, starting the electric hoist in the step 2 to enable the ceiling truss unit to continue to stably rise, and stopping hoisting when the ceiling truss unit rises to the position below an upper chord beam of the truss string system and is close to the bottom of the hanging column.
And 6, taking the operation platform of the overhead working truck as a personnel operation platform, installing a manual hoist on the operation platform, connecting a lifting hook end of the manual hoist to the ceiling truss unit, correcting the position of the ceiling truss unit through the manual hoist, and then fastening and connecting a transverse rod end of the ceiling truss unit and a ceiling connecting piece of the suspension column.
And 7, repeating the step 2 to the step 6 to hoist another suspended ceiling truss unit, wherein the end parts of the adjacent 2 suspended ceiling truss units are oppositely inserted and connected and fastened through the longitudinal rod insertion part, and after all suspended ceiling truss units are hoisted, continuing to serve as a personnel operating platform through the operating platform of the overhead working truck, correspondingly connecting indoor facilities on the adjacent 2 suspended ceiling truss units, performing closing decoration construction on the suspended ceiling, and completing all construction.
According to the optimized scheme, in the step 2 of the construction method of the steel structure truss string truss system roof ceiling structure, the ceiling truss units are assembled on site through a plurality of cross rods, longitudinal rods and vertical rods under the installation positions of the ceiling truss units on the truss string truss system.
The invention has the following prominent substantive features and remarkable progress:
1. according to the ceiling structure of the steel structure truss string system roof, the plurality of ceiling truss units are assembled and installed on the upper chord beam of the steel structure truss string system through the suspension posts, and the ceiling structure has the characteristics of simple structure, firmness and easiness in installation.
2. The suspended ceiling truss unit, the hanging post and the hanging post connecting piece in the steel structure truss string system roof suspended ceiling structure are sequentially fastened and connected to the upper chord beam of the steel structure truss string system through the connecting pieces such as the bolts and the like, so that mechanical connection is adopted in high-altitude operation, destructive connection operations such as punching, welding and the like are avoided being adopted in high altitude, and the efficiency and the safety of the high-altitude operation are greatly facilitated.
3. The steel structure truss string system roof suspended ceiling structure provided by the invention does not need to set up a scaffold in the construction process, is installed by adopting a way of hoisting the suspended ceiling truss units in sections, has the characteristics of convenience, rapidness and safety in construction, can effectively shorten the construction period and reduce the construction cost.
4. In the steel structure truss string system roof suspended ceiling structure, the ventilation equipment, the fire-fighting equipment and the like which need to be hidden on the suspended ceiling and the suspended ceiling for decoration are hoisted along with the suspended ceiling truss unit in a segmented mode and then are in butt joint in the construction process, so that the construction efficiency is improved more effectively.
Drawings
Fig. 1 is a schematic structural diagram of the suspended ceiling structure of the steel structure truss string system roof of the invention.
FIG. 2 is a schematic cross-sectional view of the section D-D in FIG. 1.
Fig. 3 is a partial schematic view of the connection of the overhead hoist, suspension post and suspension post connection in the structure of fig. 1.
Fig. 4 is a schematic view of the connection structure of the suspension posts and the suspension post connection members in the structure of fig. 1.
Fig. 5 is a schematic view of a portion of the ceiling truss unit of the structure of fig. 1.
Fig. 6 is a schematic view of a connection structure of 2 adjacent ceiling truss units in the structure of fig. 1.
Fig. 7 is a schematic view of the connection structure of the suspension post and the suspension post connector in the structure of fig. 1.
Fig. 8 is a schematic structural view of the suspension posts and the suspension post connection members in the structure of fig. 1.
Fig. 9 is a schematic view of the construction state of steps 1 and 2 in the construction method of the suspended ceiling structure of the roof of the present invention.
Fig. 10 is a schematic view of the construction states of steps 3 and 4 in the construction method of the suspended ceiling structure of the roof of the present invention.
Fig. 11 is a schematic view showing the construction states of steps 5 and 6 in the construction method of the suspended ceiling structure of the roof of the present invention.
Fig. 12 is a schematic view of the construction state of step 7 in the construction method of the suspended ceiling structure of the roof of the present invention.
Detailed Description
The invention will be further described with reference to the accompanying drawings.
Example 1
Referring to fig. 1 to 8, a steel structure truss string system roof suspended ceiling structure comprises a truss string system, a roof 2 and a suspended ceiling frame.
Referring to fig. 1 and 2 specifically, the truss-string system comprises a plurality of truss-string structures 1 and purlines 16, wherein each truss-string structure 1 is formed by connecting an upper chord beam, a lower chord stay 12, steel columns 13, brace rods 14 and diagonal draw bars 15, the upper chord beam is a double-box structure formed by connecting 2 arc steel beams 11, two ends of the upper chord beam are respectively supported by the 2 steel columns 13, the 2 lower chord stay 12 are respectively connected to two ends of the 2 arc steel beams 11 of the upper chord beam, and the brace rods 14 and the diagonal draw bars 15 are arranged between the lower chord stay 12 and the arc steel beams 11 to connect the upper chord beam and the lower chord stay 12 in a tensioned manner; and a plurality of purlines 16 are connected between the upper chord beams of the adjacent 2 truss string 1 to ensure that the truss string 1 are sequentially connected at intervals.
Referring to fig. 1 in particular, the roof 2 is formed by splicing a plurality of roof plates in an aligned manner, and the roof 2 is fixed on a purline 16 of a truss string system.
The suspended ceiling frame is arranged below the truss string system through a plurality of suspension posts 4; the furred ceiling frame is including a plurality of furred ceiling truss units 3, furred ceiling truss unit 3 has montant 31 and 2 layers of framed bent, the framed bent is connected the network frame that constitutes by a plurality of horizontal poles 32 and a plurality of vertical pole 33 vertically and horizontally staggered, and a plurality of montant 31 ends are connected between the horizontal pole 32 of adjacent 2 layers of framed bent (also can be between the vertical pole 33 of adjacent 2 layers of framed bent), horizontal pole 32 both ends have the horizontal pole and perforate, and a tip of vertical pole 33 has vertical pole grafting portion 330.
Referring to fig. 7 and 8 in particular, the suspension post 4 is a vertically arranged square (or round) tubular structure, a ceiling connector is arranged at the lower end of the suspension post 4, the ceiling connector is a suspension post ear plate 41, and an ear plate through hole 40 is arranged on the suspension post ear plate 41; the top ends of a plurality of suspension posts 4 are vertically connected with the two sides of the upper chord beam of the truss string 1 through suspension post connecting pieces, so that two sides of each truss string are provided with 2 groups of symmetrical suspension post rows.
Referring to fig. 3, 4, 7 and 8 in combination, the davit connector includes a cross-post 5, a threaded rod 6 and a base plate.
The transverse column 5 is of a square tubular structure, transverse column wall plates 51 are connected to the side walls of the transverse column 5 through welding, the transverse column wall plates 51 are positioned on two sides of the transverse column 5 and are provided with 2 symmetrical transverse plate parts, the transverse column 5 is transversely arranged above an upper chord beam of the truss string, and two sides of each arc-shaped steel beam 11, corresponding to the upper chord beam, on the transverse plate part of each transverse column wall plate 51 are provided with 2 pairs of screw top through holes 52; the bottom plate comprises a four-hole bottom plate 72 and a two-hole bottom plate 71, and the four-hole bottom plate 72 is provided with 2 pairs of screw bottom through holes 70 corresponding to the screw top through holes 52 of the transverse column wall plate 51; the 2 four-hole bottom plates 72 are arranged below the upper chord beam of the truss string and correspond to the transverse column wall plates 51 of the transverse columns 5 up and down; the double-hole bottom plate 71 is a half of the four-hole bottom plate 72, and 1 pair of screw bottom through holes 70,2 of the double-hole bottom plates 71 are arranged below 1 four-hole bottom plate 72 in a parallel and overlapped mode.
The screw rods 6 comprise 8 screw rod top through holes 52 on the corresponding transverse columns 5 and screw rod bottom through holes 70 of the bottom plate are penetrated through two ends of the screw rods 6 and are respectively in threaded connection with top nuts 61 and bottom nuts 62, so that the transverse column wall plates 51 and the bottom plate of the transverse columns 5 are respectively pressed against the arc-shaped steel beams 11 of the upper chord girder, and the hanging column connecting piece is fixedly connected to the upper chord girder of the truss string.
The both ends of spreader 5 are located and have spreader perforation 510 on the spreader portion of spreader wallboard 51, the top of davit 4 has connection end plate 42, connection end plate 42 has the davit perforation 420,2 davit 4 that docks with the spreader perforation 510 of spreader 5 tip respectively through bolt, davit perforation 420 and spreader perforation 510 correspond the both ends of being connected in davit 5 of davit connecting piece.
The limit portion of furred ceiling truss unit 3 is connected with the furred ceiling connecting piece of davit 4 through horizontal pole perforation, the otic placode perforation 40 and the bolt of davit 4, and the tip of 2 adjacent furred ceiling truss units 3 is through vertical pole grafting portion 330 opposite insertion connection, makes the combination of a plurality of furred ceiling truss units 3 constitute the furred ceiling frame.
The suspended ceiling truss unit, the suspension posts and the suspension post connecting pieces in the suspended ceiling structure of the steel structure truss string system roof are sequentially and tightly connected to the upper chord beam of the steel structure truss string system through the connecting pieces such as bolts, mechanical connection is adopted during high-altitude operation, destructive connection operations such as punching and welding are avoided being adopted in high altitude, high-altitude operation efficiency and safety are greatly facilitated, and the suspended ceiling truss structure has the advantages of being simple in structure, firm and easy to install.
Example 2
Referring to fig. 9 to 12, a construction method of a steel structure truss string system roof ceiling structure of embodiment 1, specifically, a ceiling frame is erected on a truss string system, which includes the following steps:
step 1, referring to fig. 9, 2 arc-shaped steel beams 11 of an upper chord beam in a truss string system are marked with hanging column connecting piece mounting positions, and the hanging column connecting piece mounting positions are located within 0.5 meter of upper nodes of support rods; the working platform of the overhead working truck is used as a personnel operating platform, the suspension post connecting pieces and the suspension posts 4 are sequentially installed on the upper chord beam of the truss string system, and meanwhile, a plurality of electric hoists are installed on the upper chord beam of the truss string system corresponding to the installation positions of the suspended ceiling truss units 3.
Step 2, referring to fig. 9, according to the installation position of the ceiling truss unit 3 on the truss string system, the ceiling truss unit 3 is assembled on site under the installation position through a plurality of cross rods 32, longitudinal rods 33 and vertical rods 31, the hook end of the electric hoist installed in the step 1 is connected to the ceiling truss unit 3, two ends or two sides of each ceiling truss unit 3 correspond to 2 pairs of symmetrical electric hoists, the electric hoists are started to enable the ceiling truss unit 3 to stably rise, the ceiling truss unit 3 stops being hoisted after rising to a distance of 1.8 to 2.2 meters from the construction ground, and the ceiling truss unit 3 is temporarily supported by a temporary support frame.
And 5, referring to fig. 11, starting the electric hoist in the step 2 to enable the ceiling truss unit 3 to continue to stably ascend, and stopping hoisting when the ceiling truss unit 3 ascends to a position below an upper chord beam of the truss string system and is close to the bottom of the hanging column 4.
And 6, referring to fig. 11, taking the operation platform of the overhead working truck as a personnel operation platform, installing a manual hoist on the operation platform, connecting the lifting hook end of the manual hoist to the ceiling truss unit 3, correcting the position of the ceiling truss unit 3 through the manual hoist, and then fastening and connecting the cross rod end of the ceiling truss unit 3 and the ceiling connecting piece of the hanging post 4.
And 7, referring to fig. 12, repeating the steps 2 to 6 to hoist another ceiling truss unit 3, wherein the end parts of the adjacent 2 ceiling truss units 3 are connected and fastened in an inserting manner through the longitudinal rod inserting part 330, and after all the ceiling truss units 3 are hoisted, the operation platform of the overhead working truck is continuously used as an operator operation platform, indoor facilities on the adjacent 2 ceiling truss units 3 are correspondingly connected, closing-up decoration construction is carried out on the ceiling 92, and all the construction is finished.
The construction method of the steel structure truss string system roof ceiling structure adopts the mode of sectional hoisting of the ceiling truss unit, a scaffold does not need to be erected in the construction process, meanwhile, the equipment such as ventilation and fire fighting equipment which need to be hidden on the ceiling and the ceiling for decoration are hoisted along with the ceiling truss unit in a sectional mode and then are in butt joint, and the steel structure truss string system roof ceiling structure has the characteristics of convenience in construction, rapidness and safety, can effectively shorten the construction period, and reduces the construction cost.
Claims (6)
1. A steel structure truss string system roof suspended ceiling structure comprises a truss string system, a roof (2) and a suspended ceiling frame, wherein the truss string system comprises a plurality of truss string systems (1) and purlines (16), the truss string systems (1) are formed by connecting an upper chord beam, a lower chord stay (12), a steel upright post (13), a stay bar (14) and a diagonal draw bar (15), the upper chord beam is a double-box structure formed by connecting 2 arc-shaped steel beams (11), two ends of the upper chord beam are respectively supported by 2 steel upright posts (13), 2 lower chord stay (12) are respectively connected to two ends of 2 arc-shaped steel beams (11) of the upper chord beam, and the stay bar (14) and the diagonal draw the upper chord beam and the lower chord stay (12) to be connected between the lower chord stay (12) and the arc-shaped steel beams (11); a plurality of purlines (16) are connected between the upper chord beams of the adjacent 2 truss string girders (1) to connect the truss string girders (1) at intervals in sequence; roof (2) align the concatenation by a plurality of room apron and constitute, roof (2) are fixed in on purlin (16) of a string truss system, its characterized in that: the suspended ceiling frame is arranged below the truss string system through a plurality of suspension posts (4);
the hanging columns (4) are of square or round tubular structures which are vertically arranged, the lower ends of the hanging columns (4) are provided with ceiling connecting pieces, and the top ends of a plurality of hanging columns (4) are vertically connected to the two sides of the upper chord beam of the truss string (1) through the hanging column connecting pieces, so that two sides of each truss string are provided with 2 groups of symmetrical hanging column rows;
the suspended ceiling frame comprises a plurality of suspended ceiling truss units (3), the suspended ceiling truss units (3) are provided with vertical rods (31) and 2 layers of bent frames, and the bent frames are a net-shaped frame formed by connecting a plurality of cross rods (32) and a plurality of longitudinal rods (33) in a criss-cross manner; the ends of a plurality of vertical rods (31) are connected between the cross rods (32) or the longitudinal rods (33) of the adjacent 2 layers of bent frames;
the edges of the ceiling truss units (3) are connected with the ceiling connecting pieces of the hanging columns (4), and the ceiling truss units (3) are combined to form a ceiling frame;
the hanging column connecting piece comprises a cross column (5), a screw rod (6) and a bottom plate;
the transverse column (5) is of a square tubular structure, a transverse column wall plate (51) is arranged on the side wall of the transverse column (5), the transverse column wall plate (51) is positioned on two sides of the transverse column (5) and is provided with 2 symmetrical transverse plate parts, the transverse column (5) is transversely arranged above the upper chord beam of the truss string, and two sides of each arc-shaped steel beam (11) corresponding to the upper chord beam on the transverse plate part of the transverse column wall plate (51) are provided with 2 symmetrical pairs of screw top through holes (52); the bottom plate is a four-hole bottom plate (72), and the four-hole bottom plate (72) is provided with 2 pairs of screw bottom through holes (70) corresponding to the screw top through holes (52) of the transverse column wall plate (51); the 2 four-hole bottom plates (72) are arranged below the upper chord beam of the truss string and correspond to the transverse column wall plates (51) of the transverse columns (5) up and down;
the two ends of the screw (6) penetrate through a screw top through hole (52) on the corresponding transverse column (5) and a screw bottom through hole (70) of the bottom plate and are respectively in threaded connection with a top nut (61) and a bottom nut (62), so that a transverse column wall plate (51) of the transverse column (5) and the bottom plate are respectively pressed against the arc-shaped steel beam (11) of the upper chord beam, and the hanging column connecting piece is fastened and connected to the upper chord beam of the truss;
the both ends of spreader (5) are located the spreader portion of spreader wallboard (51) and have spreader perforation (510), the top of davit (4) has connection end plate (42), connect end plate (42) have with the spreader perforation (420) of spreader perforation (510) butt joint of spreader (5) tip, 2 davits (4) correspond the both ends of connecting in spreader (5) of davit connecting piece through bolt, davit perforation (420) and spreader perforation (510) respectively.
2. The suspended ceiling structure of the steel structure truss string system roof as claimed in claim 1, wherein: the suspended ceiling connecting piece of davit (4) lower extreme is davit otic placode (41), have otic placode perforation (40) on davit otic placode (41), horizontal pole (32) tip of suspended ceiling truss unit (3) has the horizontal pole perforation, and suspended ceiling truss unit (3) are through this horizontal pole perforation, the otic placode perforation (40) and the bolt and davit (4) fastening connection of davit (4).
3. The steel structural truss string system roof ceiling structure of claim 2, wherein: one end part of a longitudinal rod (33) of each suspended ceiling truss unit (3) is provided with a longitudinal rod insertion part (330), and the end parts of every two adjacent suspended ceiling truss units (3) are connected in an inserted mode through the longitudinal rod insertion parts (330).
4. The steel structural truss string system roof ceiling structure of claim 1, wherein: the bottom plate also comprises a double-hole bottom plate (71), the double-hole bottom plate (71) is a half of a four-hole bottom plate (72) and is provided with 1 pair of screw bottom through holes (70), and 2 double-hole bottom plates (71) are horizontally arranged and stacked below 1 four-hole bottom plate (72).
5. The construction method of the steel structure truss string truss system roof suspended ceiling structure as claimed in any one of claims 1 to 4, wherein the suspended ceiling frame is erected on the truss string system, and the construction method is characterized by comprising the following steps:
step 1, marking erection column connecting piece mounting positions on 2 arc-shaped steel beams (11) of an upper chord beam in a truss string system, wherein the erection column connecting piece mounting positions are positioned in a range of 0.5 meter of an upper node of a support rod; the working platform of the overhead working truck is used as a personnel operating platform, the suspension post connecting piece and the suspension post (4) are sequentially installed on the upper chord beam of the truss string system, and meanwhile, a plurality of electric hoists are installed on the upper chord beam of the truss string system corresponding to the installation positions of the suspended ceiling truss units (3);
step 2, placing the ceiling truss units (3) below the installation position, connecting the hook ends of the electric hoists installed in the step 1 to the ceiling truss units (3), enabling the two ends or two sides of each ceiling truss unit (3) to correspond to 2 pairs of symmetrical electric hoists, starting the electric hoists to enable the ceiling truss units (3) to stably rise, stopping hoisting after the ceiling truss units (3) rise to a distance of 1.8-2.2 meters from the construction ground, and temporarily supporting the ceiling truss units (3) by temporary supporting frames;
step 3, laying indoor facilities on the top of the suspended ceiling truss unit (3) in the step 2, wherein the indoor facilities comprise a fan, a ventilation pipe (91) and a fire water monitor;
step 4, paving a ceiling (92) at the bottom of the ceiling truss unit (3) in the step 3, wherein the ceiling (92) comprises a ceiling keel connected to the ceiling truss unit (3) and a plurality of ceilings arranged on the ceiling keel;
step 5, starting the electric hoist in the step 2 to enable the suspended ceiling truss unit (3) to continue to stably ascend, and stopping hoisting when the suspended ceiling truss unit (3) ascends to a position below an upper chord beam of the truss string system and is close to the bottom of the hanging column (4);
step 6, taking the operation platform of the overhead working truck as a personnel operation platform, installing a manual hoist on the operation platform, connecting a lifting hook end of the manual hoist to the ceiling truss unit (3), correcting the position of the ceiling truss unit (3) through the manual hoist, and then fastening and connecting a transverse rod end of the ceiling truss unit (3) with a ceiling connecting piece of a hanging column (4);
and 7, repeating the step 2 to the step 6 to hoist another suspended ceiling truss unit (3), wherein the end parts of every two adjacent suspended ceiling truss units (3) are oppositely inserted and connected and fastened through the longitudinal rod inserting part (330), and when all suspended ceiling truss units (3) are hoisted, the operation platform of the overhead working truck is continuously used as an operator operation platform, indoor facilities on every two adjacent suspended ceiling truss units (3) are correspondingly connected, closing-up decoration construction is carried out on suspended ceilings (92), and all construction is completed.
6. The construction method of the suspended ceiling structure of the steel structure truss string system roof, according to claim 5, is characterized in that: in the step 2, according to the installation position of the ceiling truss unit (3) on the truss-string truss system, the ceiling truss unit (3) is assembled on site under the installation position through a plurality of cross rods (32), longitudinal rods (33) and vertical rods (31).
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109505378A (en) * | 2018-09-27 | 2019-03-22 | 上海市建筑装饰工程集团有限公司 | Big area roof truss stress check calculation layer |
| CN109441126A (en) * | 2018-09-27 | 2019-03-08 | 上海市建筑装饰工程集团有限公司 | Big area roof truss suspended ceiling module, ground assemble bracket installation method |
| CN109441011A (en) * | 2018-09-27 | 2019-03-08 | 上海市建筑装饰工程集团有限公司 | Big area roof truss suspended ceiling module, ground assemble support system |
| CN109441010A (en) * | 2018-09-27 | 2019-03-08 | 上海市建筑装饰工程集团有限公司 | Big area roof truss suspended ceiling module |
| CN112591259B (en) * | 2020-12-01 | 2022-09-23 | 中建二局安装工程有限公司 | Curved roof panel transportation bed-jig |
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