CN109972845A - The installation method of steel roof truss - Google Patents
The installation method of steel roof truss Download PDFInfo
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- CN109972845A CN109972845A CN201910289172.8A CN201910289172A CN109972845A CN 109972845 A CN109972845 A CN 109972845A CN 201910289172 A CN201910289172 A CN 201910289172A CN 109972845 A CN109972845 A CN 109972845A
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- roof truss
- steel roof
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- steel
- hanging device
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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
- E04G21/162—Handles to carry construction blocks
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- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
The present invention relates to technical field of building construction, provide a kind of installation method of steel roof truss, include the following steps, first by steel roof truss sectional making, then set up full framing, are then hung to installation site installation for left section and right section of steel roof truss of steel roof truss respectively；Then installation suspention cable wire auxiliary device；Then steel roof truss middle section installation site is hung to install；Then the assembled position of steel roof truss is welded, postwelding carries out non-destructive testing.The installation method of steel roof truss of the invention, in the case where lacking Large-scale Hoisting equipment at the construction field (site), using method in place, assembly again to steel roof truss progress segmental hoisting, the weight lifted every time is reduced, steel roof truss can be lifted using small-sized hanging device, ensure that site operation progress.
Description
Technical field
The present invention relates to technical field of building construction, in particular to a kind of installation method of steel roof truss.
Background technique
Application No. is 201710373251.8, a kind of entitled patent of invention of the installation method of steel roof truss, technical side
The following contents is disclosed in case: assembling the steel roof truss on the ground；The steel roof truss being completed is overall increased into peace
Holding position, and be fixed in the installation site.In the installation method of above-mentioned steel roof truss, the assembling of steel roof truss is complete on the ground
At, although the step of high altitude operation can be reduced, improve the assembling quality of steel roof truss；But this installation method is necessarily required to
Large-scale crane carries out coordinating operation.When the space that construction site is parked without large-scale crane or construction site without large-scale crane
In the case where access roads, only steel roof truss is lifted by crane using small crane or tower crane.And due to small crane or tower
The maximum lifting hung is significantly less weight than the weight of steel roof truss, therefore can not just be carried out using above-mentioned mounting means to steel roof truss whole
Installation.
In order to can be installed to steel roof truss using small crane or tower crane, generally use by steel roof truss sectional making,
And the method that segmental hoisting is in place, assembled.In this method, setting full framing is needed below steel roof truss installation site, it is full
The weight and operating platform as construction personnel that hall bracket is used to carry steel roof truss, and the load of full framing carrying with
Each section of steel roof truss in place and gradually increase.When full framing to set up width smaller, when scaffolding height is higher, with steel room
The lifting that each section of frame is in place, and full framing will appear the phenomenon of stability deficiency, and will appear that full framing collapses when serious shows
As causing serious safety accident.Currently, the mode used is increase full framing in order to improve the stability of full framing
Set up width, increase the quantity of cross bar, upright bar in full framing unit volume etc..But this mode is lacked there is also following
Point: 1, it sets up period length, set up heavy workload, construction cost height；2, small crane can be tied up by setting up wider full framing
Erect-position space reduces the lifting radius of crane, increases hoisting difficulty.
Summary of the invention
The technical problems to be solved by the present invention are: providing a kind of installation method of steel roof truss, lack at the construction field (site) big
In the case where type hanging device, moreover it is possible to be installed to steel roof truss.
The technical solution adopted by the present invention to solve the technical problems is: the installation method of steel roof truss includes the following steps,
S1, steel roof truss is divided into according to the design drawing of steel roof truss by left section of steel roof truss, steel roof truss middle section along its length
With right section of steel roof truss, then to steel roof truss carry out sectional making；
S2, full framing is set up between left support frame and right support frame；
S3, installation site is hung to for left section of steel roof truss using hanging device, left section of outer end of steel roof truss is mounted on left branch
The top of support frame frame, and be supported full framing to left section of steel roof truss, then hanging device pine hook；
S4, installation site is hung to for right section of steel roof truss using hanging device, right section of outer end of steel roof truss is mounted on right branch
The top of support frame frame, and be supported full framing to right section of steel roof truss, then hanging device pine hook；
S5, left column is installed in left section of steel roof truss of outer end or the top of left support frame, in right section of outer end of steel roof truss
Or right column is installed at the top of right support frame；At least one suspention cable wire is supported on left column and right column and makes to hang
The both ends for hanging cable wire are fixed on left support frame and right support frame obliquely respectively；
S6, the upper end of left hoist cable is connect with suspention cable wire, the lower end of left hoist cable is connect with left section of steel roof truss；By right hoist cable
Upper end with suspention cable wire connect, the lower end of right hoist cable is connect with right section of steel roof truss；
S7, steel roof truss middle section is hung to by installation site using hanging device, the upper end of middle hoist cable is connect with suspention cable wire,
The lower end of middle hoist cable is connect with steel roof truss middle section；Then steel roof truss middle section is interrupted with left section of steel roof truss and right section of steel roof truss respectively
It is welded and fixed, then hanging device pine hook；
S8, steel roof truss splicing are completed and after acceptance(check)s, are fully welded to the stitching position of steel roof truss；Then to weld seam
Welding quality checked；It is welded again if not qualified, until the welding quality of weld seam meets design requirement；
After S9, all steel roof trusses are installed, connect upper and lower between steel roof truss and steel roof truss, between steel roof truss and gable
String horizontal shore；Then auxiliary device is removed.
Further, in step sl, left section of steel roof truss is divided under steel roof truss according to the design drawing of steel roof truss left
Left section in section and the steel roof truss under steel roof truss above left section；
In step S3, the installation steps that left section of steel roof truss are,
S3.1, installation site is hung to for left section under steel roof truss using hanging device, left section under steel roof truss of outer end is installed
At the top of left support frame, and it is supported full framing to left section under steel roof truss, then hanging device pine hook；
S3.2, left counterweight beam is mounted under steel roof truss left section of outer end and left counterweight beam and left support frame roof it
Between have gap, left clump weight is mounted in left counterweight beam；Left section of the distance between outer end under left clump weight and steel roof truss
For L1, the height between the bottom of left clump weight and the top of left support frame is H1；
S3.3, installation site is hung to for left section on steel roof truss using hanging device, then by the room Duan Yugang left under steel roof truss
Left section of interruption is welded and fixed on frame, then hanging device pine hook.
Further, in step s 6, at least two left hoist cables are provided on each suspention cable wire, at least one left hoist cable
Lower end and steel roof truss under left section of connection, left section of connection on the lower end of at least one left hoist cable and steel roof truss.
Further, in step sl, steel roof truss lower right is divided into for right section of steel roof truss according to the design drawing of steel roof truss
Section and upper right section of steel roof truss above steel roof truss lower right section；
In step S4, the installation steps that right section of steel roof truss are,
S4.1, steel roof truss lower right section is hung to by installation site using hanging device, the outer end of steel roof truss lower right section is installed
At the top of right support frame, and it is supported full framing to steel roof truss lower right section, then hanging device pine hook；
S4.2, the outer end that right counterweight beam is mounted on to steel roof truss lower right section and right counterweight beam and right support frame roof it
Between have gap, right clump weight is mounted in right counterweight beam；The distance between the outer end of right clump weight and steel roof truss lower right section
For L2, the height between the bottom of right clump weight and the top of right support frame is H2；
S4.3, installation site is hung to for upper right section of steel roof truss using hanging device, then by the room steel roof truss lower right Duan Yugang
Upper right section of interruption of frame is welded and fixed, then hanging device pine hook.
Further, in step S6, at least two right hoist cables are provided on each suspention cable wire, at least one right hoist cable
Lower end is connect with steel roof truss lower right section, and the lower end of at least one right hoist cable is connect with upper right section of steel roof truss.
Further, in step sl, during steel roof truss middle section is divided under steel roof truss according to the design drawing of steel roof truss
Section and the middle section on the steel roof truss above middle section under steel roof truss；
In step S7, the installation steps in steel roof truss middle section are,
S7.1, middle section under steel roof truss is hung to by installation site using hanging device, by the upper end of middle hoist cable and suspention cable wire
It connects, middle section connects under the lower end of middle hoist cable and steel roof truss；Middle section under steel roof truss is right with left section of steel roof truss and steel roof truss respectively
Section interruption is welded and fixed, then hanging device pine hook；
S7.2, middle section on steel roof truss is hung to by installation site using hanging device, it will be under middle section on steel roof truss and steel roof truss
Middle section interruption is welded and fixed, and then middle section on steel roof truss is welded and fixed with right section of interruption of left section of steel roof truss and steel roof truss respectively,
Then hanging device pine hook.
Further, in step s 5, it is provided with left saddle at the top of the left column, is provided with and suspends in midair on left saddle
The left arc groove that cable wire matches；It is provided with right saddle at the top of the right column, is provided on right saddle and suspention cable wire phase
The right arc groove of cooperation；The suspention cable wire is respectively supported in the left arc groove of left saddle and the right arc groove of right saddle.
Further, in step s 5, the quantity of the suspention cable wire is two, and the distance between two suspention cable wires are big
In the width of the steel roof truss.
The beneficial effects of the present invention are: the installation method of steel roof truss of the invention, lacks Large-scale Hoisting at the construction field (site) and sets
In the case where standby, using method in place, assembly again to steel roof truss progress segmental hoisting, the weight lifted every time reduced, is adopted
Steel roof truss can be lifted with small-sized hanging device, ensure that site operation progress.Pass through setting suspention cable wire and counterweight
Block makes full framing bear load intermittently in the installation process of steel roof truss, reduce the load that full framing is carried with
And the time of bearing load, and then the stability of full framing is made to be guaranteed, improve the safety of construction.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of one embodiment of steel roof truss in the present invention；
Fig. 2 is the structural schematic diagram by left section and right section of steel roof truss installation of the steel roof truss in Fig. 1 on the support frame；
Fig. 3 is the structural schematic diagram that installation suspends behind cable wire and steel roof truss middle section in midair in Fig. 2；
Fig. 4 is the structural schematic diagram after the auxiliary device removed in Fig. 3；
Fig. 5 is the structural schematic diagram of second embodiment of steel roof truss in the present invention；
Fig. 6 is the structural schematic diagram installed left section under the steel roof truss in Fig. 5 and steel roof truss lower right section on the support frame；
Fig. 7 is the structural schematic diagram installed on clump weight and steel roof truss after left section and upper right section of steel roof truss in Fig. 6；
Fig. 8 is the structural schematic diagram in Fig. 7 after installation suspention cable wire；
Fig. 9 is the structural schematic diagram installed under steel roof truss behind middle section in fig. 8；
Figure 10 is the structural schematic diagram installed on steel roof truss behind middle section in Fig. 9；
Figure 11 is the structural schematic diagram after the auxiliary device removed in Figure 10.
Appended drawing reference in figure are as follows: 1- left support frame, 2- right support frame, 3- full framing, 4- left column, the right side 5- are vertical
Column, 6- suspend cable wire in midair, the left hoist cable of 7-, the right hoist cable of 8-, hoist cable in 9-, the left counterweight beam of 10-, the left clump weight of 11-, the right counterweight beam of 12-,
The right clump weight of 13-, 30- steel roof truss, left section of 31- steel roof truss, 32- steel roof truss middle section, right section of 33- steel roof truss, under 311- steel roof truss
Left section, left section on 312- steel roof truss, middle section under 321- steel roof truss, middle section on 322- steel roof truss, 331- steel roof truss lower right section, 332-
Upper right section of steel roof truss.
Specific embodiment
Present invention will be further explained below with reference to the attached drawings and examples.
The installation method of steel roof truss of the present invention, includes the following steps,
S1, steel roof truss 30 is divided by left section 31 of steel roof truss, steel room according to the design drawing of steel roof truss 30 along its length
Then frame middle section 32 and right section 33 of steel roof truss carry out sectional making to steel roof truss 30；
S2, full framing 3 is set up between left support frame 1 and right support frame 2；
S3, installation site is hung to for left section 31 of steel roof truss using hanging device, left section 31 of outer end of steel roof truss is mounted on
The top of left support frame 1, and be supported full framing 3 to left section 31 of steel roof truss, then hanging device pine hook；
S4, installation site is hung to for right section 33 of steel roof truss using hanging device, right section 33 of outer end of steel roof truss is mounted on
The top of right support frame 2, and be supported full framing 3 to right section 33 of steel roof truss, then hanging device pine hook；
S5, left column 4 is installed in left section 31 of steel roof truss of outer end or the top of left support frame 1, at right section 33 of steel roof truss
Outer end or right support frame 2 top install right column 5；At least one suspention cable wire 6 is supported on left column 4 and right column
On 5 and it is fixed on the both ends for suspending cable wire 6 in midair obliquely on left support frame 1 and right support frame 2 respectively；
S6, the upper end of left hoist cable 7 is connect with suspention cable wire 6, the lower end of left hoist cable 7 is connect with left section 31 of steel roof truss；It will
The upper end of right hoist cable 8 is connect with suspention cable wire 6, and the lower end of right hoist cable 8 is connect with right section 33 of steel roof truss；
S7, steel roof truss middle section 32 is hung to by installation site using hanging device, by the upper end of middle hoist cable 9 and suspention cable wire 6
Connection, the lower end of middle hoist cable 9 is connect with steel roof truss middle section 32；Then by steel roof truss middle section 32 respectively with left section 31 of steel roof truss and steel
Right section 33 of roof truss interruption is welded and fixed, then hanging device pine hook；
S8, the splicing of steel roof truss 30 are completed and after acceptance(check)s, are fully welded to the stitching position of steel roof truss 30；Then right
Welding quality is checked；It is welded again if not qualified, until welding quality meets design requirement；
After S9, all steel roof trusses 30 are installed, connect between steel roof truss 30 and steel roof truss 30, steel roof truss 30 and gable it
Between upper lower edge horizontal shore；Then auxiliary device is removed.
In step S1, steel roof truss 30 is divided into left section of steel roof truss along its length according to the design drawing of steel roof truss 30
31, then steel roof truss middle section 32 and right section 33 of steel roof truss carry out sectional making to steel roof truss 30.As shown in Figure 1,30 edge of steel roof truss
Length direction is divided into three sections, and every section of weight should be less than the specified hoisting weight of construction site hanging device, and guarantee passes through construction
Every section of steel roof truss 30 can be hung to installation site and installed by the hanging device at scene.In order to guarantee the processing essence of steel roof truss 30
Degree and installation dimension, each section complete after preassembling and make marks at assembled docking.When in the assembled work of high-altitude progress
When industry, need to only be directed at label at assembled docking, improve assembled efficiency when high altitude operation, reduce high altitude operation when
Between, reduce the security risk of high altitude operation.
In step S2, full framing 3 is set up between left support frame 1 and right support frame 2.As shown in Fig. 2, the left side
Braced frame 1 and right support frame 2 are oppositely arranged, they mainly play a supportive role, after steel roof truss 30 is installed, steel roof truss 30
One end be supported on left support frame 1, the other end is supported on right support frame 2.Full framing 3 is a kind of support construction,
Mainly it is made of upright bar, cross bar, diagonal brace, bridging etc.；The top of the full framing 3 can be paved with the wooden springboard, and surrounding is arranged
Temporary railing plays the role of operating platform and channel.
In step S3, left section 31 of steel roof truss is installed, as shown in Fig. 2, using hanging device by left section 31 of steel roof truss
After being hung to installation site, center line, absolute altitude and the spring quantum of left section 31 of steel roof truss of adjustment, then in left section 31 of steel roof truss and Man Tang
Lip block is set between bracket 3, left section 31 of steel roof truss is supported, left section 31 of outer end of steel roof truss is mounted on left support
Behind the top of frame 1, hanging device can loose hook.The hanging device can be small crane or tower crane etc., the steel roof truss
Left section 31 of outer end refers to that one end being mounted on left support frame 1, the inner end that left section 31 of steel roof truss refer to being supported on
That one end on full framing 3.After hanging device pine hook, full framing 3 mainly carries left section 31 of steel roof truss of weight.
In step S4, right section 33 of steel roof truss is installed, as shown in Fig. 2, using hanging device by right section 33 of steel roof truss
After being hung to installation site, center line, absolute altitude and the spring quantum of right section 33 of steel roof truss of adjustment, then in right section 33 of steel roof truss and Man Tang
Lip block is set between bracket 3, right section 33 of steel roof truss is supported, right section 33 of outer end of steel roof truss is mounted on right support
Behind the top of frame 2, hanging device can loose hook.The outer end that right section 33 of the steel roof truss refers to being mounted on right support frame 2
On that one end, the inner end that right section 33 of steel roof truss refers to that one end being supported on full framing 3.After hanging device pine hook,
Full framing 3 mainly carries right section 33 of steel roof truss of weight.
In step S5, installation suspention wire rope structure, as shown in figure 3, the lower end of left column 4 is mounted on left section 31 of steel roof truss
Outer end or left support frame 1 on, the lower end of right column 5 is mounted on right section 33 of steel roof truss of outer end or right support frame 2.
Preferably, the top of left section 31 of steel roof truss of outer end is arranged in the left column 4, and the lower end of left column 4 passes through high-strength
Bolt arrangement is connect with left section 31 of steel roof truss；The top of right section 33 of steel roof truss of outer end, right column 5 is arranged in the right column 5
Lower end connect with right section 33 of steel roof truss by high-strength bolt structure.At least one suspention cable wire 6 is supported on left column 4 and the right side
On column 5, the left end of suspention cable wire 6 is fixed on obliquely on left support frame 1, and the right end of suspention cable wire 6 is fixed on obliquely
On right support frame 2.
In step S6, left section 31 of steel roof truss and right section 33 of steel roof truss of weight are carried by suspention cable wire 6.As shown in figure 3,
The upper end of left hoist cable 7 is connect with suspention cable wire 6, left hoist cable 7 is vertically arranged, the lower end of left hoist cable 7 and left section 31 of steel roof truss company
It connects and left hoist cable 7 is made to be in tension, the quantity of the left hoist cable 7 can be one, or more.By right hoist cable 8
Upper end connect with suspention cable wire 6, right hoist cable 8 is vertically arranged, and the lower end of right hoist cable 8 connect with right section 33 of steel roof truss and makes the right side
Hoist cable 8 is in tension, and the quantity of the right hoist cable 8 can be one, or more.According to the actual situation, it adjusts
The tension situation of left hoist cable 7 and right zipper 8, so that it may so that suspention cable wire 6 mainly carries left section 31 of steel roof truss and right section of steel roof truss
33 weight, and then the weight carried required for full framing 3 is reduced, so that the stability of full framing 3 is guaranteed, improves
The safety of high-altitude construction.
In step S7, steel roof truss middle section 32 is installed, as shown in figure 3, using hanging device by steel roof truss middle section 32
After being hung to installation site, center line, absolute altitude and the spring quantum in steel roof truss middle section 32 are adjusted, by the upper end of middle hoist cable 9 and suspention steel
Rope 6 connects, and middle hoist cable 9 is vertically arranged, and the lower end of middle hoist cable 9 connect with steel roof truss middle section 32 and middle hoist cable 9 is made to be in tension-like
State, the quantity of the middle hoist cable 9 can be one, or more.By steel roof truss middle section 32 respectively with left section 31 of steel roof truss
After being welded and fixed with right section 33 of steel roof truss interruption, hanging device pine hook suspends cable wire 6 in midair at this time and mainly carries steel roof truss middle section 32
Weight, and then the weight carried required for full framing 3 is reduced, so that the stability of full framing 3 is guaranteed, improves high-altitude
The safety of construction.
In step S8, after the assembled completion of steel roof truss 30 and acceptance(check), the assembled position of steel roof truss 30 is fully welded,
Preferably, should be symmetrically welded from the centre of steel roof truss 30 to both ends, reduce the deflection of steel roof truss 30 in welding process.Welding
After the completion, the welding quality of weld seam is carried out non-destructive testing, is welded again if not qualified, until the welding quality of weld seam accords with
Close design requirement.
In step S9, after the installation that all steel roof trusses 30 are completed according to above-mentioned steps, each steel roof truss 30 is made to be in freely-supported
Across state, the upper lower edge then reconnected between steel roof truss 30 and steel roof truss 30, between steel roof truss 30 and gable is horizontally-supported
All steel roof trusses 30 are connected as entirety, improve the stability of steel roof truss 30 by beam.Then auxiliary device is removed, as shown in figure 4,
Complete the installation of steel roof truss 30.The auxiliary device refers to the device that auxiliary steel roof truss 30 is installed, including full framing 3, a left side
Column 4, right column 5, suspention cable wire 6, left hoist cable 7, right hoist cable 8, middle hoist cable 9 etc..
The installation method of steel roof truss 30 of the invention, at the construction field (site) lack Large-scale Hoisting equipment in the case where, using pair
Steel roof truss 30 carries out that segmental hoisting is in place, assembled method again, reduces the weight lifted every time, just using small-sized hanging device
Steel roof truss 30 can be installed, ensure that site operation progress.The stability of full framing 3 and the height of full framing 3 have
It closes, the height of full framing 3 is higher, and stability is poorer.In the installation process of steel roof truss 30, when the height of full framing 3
When higher, in order to guarantee steel roof truss 30 install when stability and construction personnel high altitude operation safety, the present invention in lead to
Cross setting suspention cable wire 6 and hoist cable, full framing 3 made to bear load intermittently, reduce the load that full framing 3 is carried with
And the time of bearing load, and then the stability of full framing 3 is made to be guaranteed, improve the safety of construction.
In order to reduce lifting weight when hanging device lifts by crane every time as far as possible, Fig. 5 shows the second of the segmentation of steel roof truss 30
A embodiment.As shown in figure 5, in step sl, being divided into steel room for left section 31 of steel roof truss according to the design drawing of steel roof truss 30
Under frame left section 312 on left section 311 and the steel roof truss under steel roof truss above left section 311；According to the design drawing of steel roof truss 30
Steel roof truss lower right section 331 and upper right section of steel roof truss above steel roof truss lower right section 331 are divided by right section 33 of steel roof truss
332；During steel roof truss middle section 32 is divided under steel roof truss middle section 321 and is located under steel roof truss according to the design drawing of steel roof truss 30
Middle section 322 on the steel roof truss of 321 top of section.
In step S3, the installation steps that left section 31 of steel roof truss are,
S3.1, installation site is hung to for left section 311 under steel roof truss using hanging device, by left section 311 outer under steel roof truss
End is mounted on the top of left support frame 1, and is supported full framing 3 to left section 311 under steel roof truss, then hanging device
Loose hook；
S3.2, left counterweight beam 10 is mounted on left section 311 of outer end and left counterweight beam 10 and left support frame under steel roof truss
There is gap between 1 top, left clump weight 11 is mounted in left counterweight beam 10；Left section 311 under left clump weight 11 and steel roof truss
The distance between outer end be L1, the height between the bottom of left clump weight 11 and the top of left support frame 1 is H1；
S3.3, installation site is hung to for left section 312 on steel roof truss using hanging device, then by left section 311 under steel roof truss
It is welded and fixed with left section 312 interruption on steel roof truss, then hanging device pine hook.
In step S3.1, left section 311 under steel roof truss is installed.As shown in fig. 6, will be under steel roof truss using hanging device
It is hung to installation site for left section 311, adjusts left section 311 under steel roof truss of center line, absolute altitude and spring quantum, it is then left under steel roof truss
Lip block is set between section 311 and full framing 3, left section 311 under steel roof truss is supported, by left section 311 under steel roof truss
Outer end be mounted on the top of left support frame 1 after, hanging device can loose hook, the main carrying steel roof truss of full framing 3 at this time
Lower left section 311 of weight.
In step S3.2, left balance weight device is set, as shown in fig. 7, left counterweight beam 10 is passed through high-strength bolt structure
Being mounted under steel roof truss has gap, the gap between left section 311 of outer end and left counterweight beam 10 and 1 top of left support frame
Guarantee that left counterweight beam 10 is in vacant state, left clump weight 11 is mounted in left counterweight beam 10 and keeps left clump weight 11 hanging；
Preferably, the height between the bottom of left clump weight 11 and the top of left support frame 1 is H1 >=100mm, guarantee entire
In installation process, left clump weight 11 is in vacant state always.By the way that left counterweight beam 10 and left clump weight 11 is arranged, with steel roof truss
Lower left section 311 is fulcrum with the link position of left support frame 1, makes under steel roof truss left section 311 to be in cantilever equilibrium-like, and then reduce
Full framing 3 needs to carry left section 311 under steel roof truss of weight, at this point, increasing by the weight of left clump weight 11, makes
Full framing 3 carries left section 311 under steel roof truss of weight as little as possible, and the stability of full framing 3 is made to be guaranteed.
In step S3.3, left section 312 on steel roof truss is installed, as shown in fig. 7, will be on steel roof truss using hanging device
It is hung to installation site for left section 312, adjusts left section 312 on steel roof truss of center line, absolute altitude and spring quantum, it then will be left under steel roof truss
Section 311 is welded and fixed with left section 312 interruption on steel roof truss, and then hanging device pine hook, completes left section 31 of steel roof truss of installation.
In step s 6, multiple left hoist cables 7 be can be set on each suspention cable wire 6, the lower end of multiple left hoist cable 7 can be with
It connect, can also be connect with left section 312 on steel roof truss with left section 311 under steel roof truss.Preferably, as shown in figure 8, in step
In rapid S6, at least two left hoist cables 7, a left side under the lower end of at least one left hoist cable 7 and steel roof truss are provided on each suspention cable wire 6
Section 311 connects, left section 312 connection on the lower end of at least one left hoist cable 7 and steel roof truss.
In step s 4, right section 33 of steel roof truss of installation steps are,
S4.1, steel roof truss lower right section 331 is hung to by installation site using hanging device, by the outer of steel roof truss lower right section 331
End is mounted on the top of right support frame 2, and is supported full framing 3 to steel roof truss lower right section 331, then hanging device
Loose hook；
S4.2, the outer end that right counterweight beam 12 is mounted on to steel roof truss lower right section 331 and right counterweight beam 12 and right support frame
There is gap between 2 tops, right clump weight 13 is mounted in right counterweight beam 12；Right clump weight 13 and steel roof truss lower right section 331
The distance between outer end be L2, the height between the bottom of right clump weight 13 and the top of right support frame 2 is H2；
S4.3, installation site is hung to for upper right section 332 of steel roof truss using hanging device, then by steel roof truss lower right section 331
It is welded and fixed with upper right section 332 of steel roof truss interruption, then hanging device pine hook.
In step S4.1, steel roof truss lower right section 331 is installed, as shown in fig. 6, will be under steel roof truss using hanging device
It is hung to installation site for right section 331, center line, absolute altitude and the spring quantum of steel roof truss lower right section 331 is adjusted, then in steel roof truss lower right
Lip block is set between section 331 and full framing 3, steel roof truss lower right section 331 is supported, by steel roof truss lower right section 331
Outer end be mounted on the top of right support frame 2 after, hanging device can loose hook, the main carrying steel roof truss of full framing 3 at this time
The weight of lower right section 331.
In step S4.2, right balance weight device is set, as shown in fig. 7, right counterweight beam 12 is passed through high-strength bolt structure
It is mounted on the outer end of steel roof truss lower right section 331 and there is gap, the gap between 2 top of right counterweight beam 12 and right support frame
Guarantee that right counterweight beam 12 is in vacant state, right clump weight 13 is mounted in right counterweight beam 12 and keeps right clump weight 13 hanging；
Preferably, the height between the bottom of right clump weight 13 and the top of right support frame 2 is H2 >=100mm, guarantee entire
In installation process, right clump weight 13 is in vacant state always.By the way that right counterweight beam 12 and right clump weight 13 is arranged, with steel roof truss
The link position of lower right section 331 and right support frame 2 is fulcrum, makes steel roof truss lower right section 331 in cantilever equilibrium-like, and then is reduced
Full framing 3 needs to carry the weight of steel roof truss lower right section 331, at this point, increasing by the weight of right clump weight 13, makes
Full framing 3 carries the weight of steel roof truss lower right section 331 as little as possible.
In step S4.3, upper right section 332 of steel roof truss is installed, as shown in fig. 7, will be on steel roof truss using hanging device
It is hung to installation site, center line, absolute altitude and the spring quantum of upper right section 332 of steel roof truss of adjustment, then by steel roof truss lower right for right section 332
Section 331 is welded and fixed with upper right section 332 of steel roof truss interruption, then hanging device pine hook, completes right section 33 of steel roof truss of installation.
In step s 6, multiple right hoist cables 8 be can be set on each suspention cable wire 6, the lower end of multiple right hoist cable 8 can be with
It connect, can also be connect with upper right section 332 of steel roof truss with steel roof truss lower right section 331.Preferably, as shown in figure 8, step
In S6, at least two right hoist cables 8, the lower end of at least one right hoist cable 8 and steel roof truss lower right section are provided on each suspention cable wire 6
331 connections, the lower end of at least one right hoist cable 8 is connect with upper right section 332 of steel roof truss.
In step S7, the installation steps in steel roof truss middle section 32 are,
S7.1, middle section 321 under steel roof truss is hung to by installation site using hanging device, by the upper end of middle hoist cable 9 and suspention
Cable wire 6 connects, and middle section 321 connects under the lower end of middle hoist cable 9 and steel roof truss；Middle section 321 under steel roof truss is left with steel roof truss respectively
Section 31 and right section 33 of steel roof truss interruption are welded and fixed, then hanging device pine hook；
S7.2, middle section 322 on steel roof truss is hung to by installation site using hanging device, by middle section 322 and steel on steel roof truss
Under roof truss middle section 321 interruption be welded and fixed, then by middle section 322 on steel roof truss respectively with left section 31 of steel roof truss and right section of steel roof truss
33 interruptions are welded and fixed, then hanging device pine hook.
In step S7.1, middle section 321 under steel roof truss is installed, as shown in figure 9, will be under steel roof truss using hanging device
Middle section 321 is hung to installation site, center line, absolute altitude and the spring quantum in middle section 321 under steel roof truss is adjusted, then by middle hoist cable 9
Upper end connect with suspention cable wire 6, and middle hoist cable 9 is vertically arranged, the connection of middle section 321 and is made under the lower end of middle hoist cable 9 and steel roof truss
Hoist cable 9 is in tension；Then by middle section 322 on steel roof truss respectively with right section of 33 intermittent welds of left section 31 of steel roof truss and steel roof truss
Connect it is fixed after, hanging device can loose hook, suspend in midair at this time cable wire 6 mainly under carrying steel roof truss middle section 321 weight.
In step S7.2, middle section 322 on steel roof truss is installed, as shown in Figure 10, using hanging device by steel roof truss
Upper middle section 322 is hung to installation site, adjusts center line, absolute altitude and the spring quantum in middle section 322 on steel roof truss, then will be on steel roof truss
Middle section 322 under steel roof truss middle section 321 interruption is welded and fixed, then by middle section 322 on steel roof truss respectively with left section 31 of steel roof truss
It is welded and fixed with right section 33 of steel roof truss interruption, then hanging device pine hook, completes the installation in steel roof truss middle section 32, suspend steel in midair at this time
Rope 6 mainly carries the weight in steel roof truss middle section 32.
The steel roof truss 30 that Figure 11 is shown in above-described embodiment is installed and removes the structural representation after auxiliary device
Figure, the auxiliary device include full framing 3, left column 4, right column 5, suspention cable wire 6, left hoist cable 7, right hoist cable 8, middle hoist cable
9, left counterweight beam 10, left clump weight 11, right counterweight beam 12, right clump weight 13 etc..
In step s 5, left location hole can be set on the left column 4, right location hole, institute can be set on right column 5
It states in the right location hole that suspention cable wire 6 can be supported on the left location hole and right column 5 of left column 4.Preferably, exist
In step S5, the top of the left column 4 is provided with left saddle, and the left arc matched with suspention cable wire 6 is provided on left saddle
Shape slot；The top of the right column 5 is provided with right saddle, and the right arc groove matched with suspention cable wire 6 is provided on right saddle；
The suspention cable wire 6 is respectively supported in the left arc groove of left saddle and the right arc groove of right saddle.
In step s 5, the quantity of the suspention cable wire 6 is two, and the distance between two suspention cable wires 6 are greater than described
The width of steel roof truss 30.Two suspention cable wires 6 are set side by side, and to reduce the load that every suspention cable wire 6 is carried, improve entire
The stability and safety of device.It is greater than the width of steel roof truss 30 by the distance between two suspention cable wires 6 of setting, guarantees steel
Left section 31 of roof truss, steel roof truss middle section 32, right section 33 of steel roof truss can fall between two suspention cable wires 6.
Claims (8)
1. the installation method of steel roof truss, which is characterized in that include the following steps,
S1, steel roof truss (30) is divided by steel roof truss left section of (31), steel according to the design drawing of steel roof truss (30) along its length
Roof truss middle section (32) and right section of steel roof truss (33) then carry out sectional making to steel roof truss (30)；
S2, full framing (3) are set up between left support frame (1) and right support frame (2)；
S3, installation site is hung to for left section of steel roof truss (31) using hanging device, the outer end of steel roof truss left section (31) is mounted on
The top of left support frame (1), and be supported full framing (3) to left section of steel roof truss (31), then hanging device pine hook；
S4, installation site is hung to for right section of steel roof truss (33) using hanging device, the outer end of steel roof truss right section (33) is mounted on
The top of right support frame (2), and be supported full framing (3) to right section of steel roof truss (33), then hanging device pine hook；
S5, left column (4) are installed in left section of steel roof truss (31) of outer end or the top of left support frame (1), at right section of steel roof truss
(33) top of outer end or right support frame (2) is installed by right column (5)；At least one suspention cable wire (6) is supported on left vertical
On column (4) and right column (5) and the both ends for suspending cable wire (6) in midair is made to be fixed on left support frame (1) and right support obliquely respectively
On frame (2)；
S6, the upper end of left hoist cable (7) is connect with suspention cable wire (6), the lower end of left hoist cable (7) connects with left section of steel roof truss (31)
It connects；The upper end of right hoist cable (8) is connect with suspention cable wire (6), the lower end of right hoist cable (8) is connect with right section of steel roof truss (33)；
S7, steel roof truss middle section (32) are hung to by installation site using hanging device, by the upper end of middle hoist cable (9) and suspention cable wire
(6) it connects, the lower end of middle hoist cable (9) is connect with steel roof truss middle section (32)；Then by steel roof truss middle section (32) respectively with steel roof truss
Left section (31) and right section of steel roof truss (33) interruption are welded and fixed, then hanging device pine hook；
S8, steel roof truss (30) splicing are completed and after acceptance(check)s, are fully welded to the stitching position of steel roof truss (30)；Then right
The welding quality of weld seam is checked；It is welded again if not qualified, until the welding quality of weld seam meets design requirement；
It after S9, all steel roof trusses (30) are installed, connects between steel roof truss (30) and steel roof truss (30), steel roof truss (30) and mountain
Upper lower edge horizontal shore between wall；Then auxiliary device is removed.
2. the installation method of steel roof truss according to claim 1, which is characterized in that in step sl, according to steel roof truss
(30) design drawing is divided under steel roof truss left section (311) for left section of steel roof truss (31) and is located under steel roof truss left section (311)
Left section (312) on the steel roof truss of top；
In step S3, the installation steps of steel roof truss left section (31) are,
S3.1, installation site is hung to for left section (311) under steel roof truss using hanging device, by left section (311) outer under steel roof truss
End is mounted on the top of left support frame (1), and is supported full framing (3) to left section (311) under steel roof truss, then hangs
The standby loose hook of installing；
S3.2, left counterweight beam (10) is mounted on the outer end of left section (311) and left counterweight beam (10) and left support frame under steel roof truss
There is gap between at the top of frame (1), left clump weight (11) is mounted on left counterweight beam (10)；Left clump weight (11) and steel roof truss
The distance between the outer end of lower left section (311) is L1, between the bottom of left clump weight (11) and the top of left support frame (1)
Height is H1；
S3.3, installation site is hung to for left section (312) on steel roof truss using hanging device, then by left section (311) under steel roof truss
It is welded and fixed with left section (312) interruption on steel roof truss, then hanging device pine hook.
3. the installation method of steel roof truss according to claim 2, which is characterized in that in step s 6, each suspention cable wire
(6) it is provided at least two left hoist cables (7) on, is connected for left section (311) under the lower end of at least one left hoist cable (7) and steel roof truss,
Left section (312) connection on the lower end of at least one left hoist cable (7) and steel roof truss.
4. the installation method of steel roof truss according to claim 1 or 2, which is characterized in that in step sl, according to steel roof truss
(30) design drawing is divided into steel roof truss lower right section (331) for right section of steel roof truss (33) and is located at steel roof truss lower right section (331)
Upper right section of the steel roof truss of top (332)；
In step S4, the installation steps of steel roof truss right section (33) are,
S4.1, steel roof truss lower right section (331) is hung to by installation site using hanging device, by the outer of steel roof truss lower right section (331)
End is mounted on the top of right support frame (2), and is supported full framing (3) to steel roof truss lower right section (331), then hangs
The standby loose hook of installing；
S4.2, the outer end that right counterweight beam (12) is mounted on to steel roof truss lower right section (331) and right counterweight beam (12) and right support frame
There is gap between at the top of frame (2), right clump weight (13) is mounted on right counterweight beam (12)；Right clump weight (13) and steel roof truss
The distance between outer end of lower right section (331) is L2, between the bottom of right clump weight (13) and the top of right support frame (2)
Height is H2；
S4.3, installation site is hung to for upper right section of steel roof truss (332) using hanging device, then by steel roof truss lower right section (331)
It is welded and fixed with upper right section of steel roof truss (332) interruption, then hanging device pine hook.
5. the installation method of steel roof truss according to claim 4, which is characterized in that in step S6, each suspention cable wire (6)
On be provided at least two right hoist cables (8), the lower end of at least one right hoist cable (8) is connect with steel roof truss lower right section (331), at least
The lower end of one right hoist cable (8) is connect with upper right section of steel roof truss (332).
6. the installation method of steel roof truss according to claim 1 or 2, which is characterized in that in step sl, according to steel roof truss
(30) steel roof truss middle section (32) are divided into middle section under steel roof truss (321) and are located at middle section (321) under steel roof truss by design drawing
Middle section (322) on the steel roof truss of top；
In step S7, the installation steps of steel roof truss middle section (32) are,
S7.1, middle section under steel roof truss (321) are hung to by installation site using hanging device, by the upper end of middle hoist cable (9) and suspention
Cable wire (6) connects, and middle section (321) connects under the lower end of middle hoist cable (9) and steel roof truss；By middle section under steel roof truss (321) respectively with
Left section of steel roof truss (31) and right section of steel roof truss (33) interruption is welded and fixed, then hanging device pine hook；
S7.2, middle section on steel roof truss (322) are hung to by installation site using hanging device, by middle section on steel roof truss (322) and steel
Under roof truss middle section (321) interruption be welded and fixed, then by middle section on steel roof truss (322) respectively with left section of steel roof truss (31) and steel room
Right section of frame (33) interruption is welded and fixed, then hanging device pine hook.
7. the installation method of steel roof truss according to claim 1, which is characterized in that in step s 5, the left column (4)
Top be provided with left saddle, be provided on left saddle and suspention cable wire (6) the left arc groove that matches；The right column (5)
Top be provided with right saddle, be provided on right saddle and suspention cable wire (6) the right arc groove that matches；The suspention cable wire
(6) it is respectively supported in the left arc groove of left saddle and the right arc groove of right saddle.
8. the installation method of steel roof truss according to claim 1, which is characterized in that in step s 5, the suspention cable wire
(6) quantity is two, and the distance between two suspentions cable wire (6) are greater than the width of the steel roof truss (30).
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110409840A (en) * | 2019-07-29 | 2019-11-05 | 中国人民解放军63926部队 | Roof truss hanging method |
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| CN101463629A (en) * | 2007-12-17 | 2009-06-24 | 贵阳铝镁设计研究院 | Wide span steel roof frame split hoisting method |
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