CN111691684A - Installation and construction method for whole trusses of large-span pipe truss - Google Patents
Installation and construction method for whole trusses of large-span pipe truss Download PDFInfo
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- CN111691684A CN111691684A CN202010649570.9A CN202010649570A CN111691684A CN 111691684 A CN111691684 A CN 111691684A CN 202010649570 A CN202010649570 A CN 202010649570A CN 111691684 A CN111691684 A CN 111691684A
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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
- E04G21/142—Means in or on the elements for connecting same to handling 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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Abstract
The invention discloses a large-span pipe truss whole-truss installation construction method which comprises the steps of S1, pipe truss whole-truss model building, axis net retest of the pipe truss whole-truss model S2, jig layout for installing pipe truss members S3, welding installation of the pipe truss members S4, hoisting of the pipe truss whole-truss members S5 and the like, so that a large-span pipe truss whole-truss installation construction process is completed. The construction method for installing the whole large-span pipe truss is mature and standard in technology, and particularly aims at splicing, welding and hoisting of large-span, variable-section and multi-curved-surface pipe truss members, so that the construction difficulty is low, the error rate is small, the process controllability is high, the construction efficiency is high, and the construction method is high in quality, economical and efficient and has great popularization value.
Description
Technical Field
The invention relates to the technical field of building installation, in particular to a construction method for installing whole trusses of a large-span pipe truss.
Background
With the progress of times and science and technology, the design and modeling of buildings are more and more novel and tend to be diversified, venues with various large space requirements are more generalized, and the reasonable application of new technologies, new processes and the like in the field of building industry is more frequent and important. The design method adopting the large-span pipe truss steel structure roof structure system is increasingly applied to venue building engineering, but the construction technical requirement of the large-span pipe truss steel structure is high, the difficulty is high, the construction quality, the safety and the construction period are greatly influenced, and the technical requirements of splicing, welding, hoisting and the like of large-span, variable cross-section and multi-curved-surface pipe truss frame members are more outstanding.
In the prior art, for the construction of a long-span pipe truss steel structure, especially for the splicing, welding and hoisting of a large-span, variable-section and multi-curved-surface pipe truss member, the technology is immature and irregular, the construction difficulty is high, the error rate is large, the process controllability is poor, the construction efficiency is low, and the popularization value is not high.
Disclosure of Invention
The invention aims to: provides a construction method for installing whole trusses of a large-span pipe truss so as to solve the defects.
In order to achieve the above purpose, the invention provides the following technical scheme:
a construction method for installing whole large-span pipe trusses comprises the following steps:
s1, building a pipe truss whole truss model:
carrying out model construction and node deepening design on a drawing of a whole large-span pipe truss by Tekla software, outputting a deepened drawing, constructing a list and a rod piece model, generating a material list, purchasing raw materials, cutting and blanking intersecting lines, and transporting the material list to a construction site;
the developed image of the intersecting line is processed on a transparent plastic film by a computer according to the following steps: drawing a sample plate for inspection, marking the serial number of the pipe fitting on the sample plate, and closely attaching the sample plate to the pipe orifice of the intersecting line according to the line marks of 'upper, lower, left and right' during inspection to inspect the matching degree;
s2, axis net retest of the pipe truss whole truss model:
firstly, measuring and setting a main control axis according to the on-site visual condition, then encrypting each building axis on the basis, completing the overall measurement and release of the plane control network, and performing local measurement control by adopting a rectangular coordinate method; marking the center line of the pre-buried iron plate, measuring all point position data by using a total station, feeding the data back to a drawing for comprehensive analysis, and optimizing the size and the position of the whole pipe truss according to the actual measurement result to ensure that the whole pipe truss is installed more smoothly;
s3, laying a moulding bed for installing the pipe truss framework:
the method comprises the following steps that a pipe truss member is welded and installed in a side-standing mode, a computer is used for conducting model building on the side-standing pipe truss member, node layout design is conducted on a jig frame in the welding and installation process of the pipe truss member, a jig frame layout design drawing is output, then a jig frame consisting of a plurality of lower entering jig frames and upper entering jig frames is installed on the flat ground according to the drawing, and the lower entering jig frames and the upper entering jig frames are arranged oppositely;
the pipe truss component comprises a lower access rod, a first upper access rod and a second upper access rod, wherein a plurality of web members are arranged between the lower access rod and the first upper access rod as well as between the lower access rod and the second upper access rod, and a plurality of main access rods and inclined rods are arranged between the first upper access rod and the second upper access rod;
s4, welding and installing the pipe truss members:
placing a lower vestibule rod of a pipe truss member on a plurality of lower vestibule formworks, respectively placing a first upper vestibule rod and a second upper vestibule rod of the pipe truss member on an upper layer and a lower layer of the plurality of upper vestibule formworks, then adopting a pipe truss vestibule rod distance detection device to detect, verify and adjust the distance between the lower vestibule rod, the first upper vestibule rod and the second upper vestibule rod, respectively fixing the lower vestibule rod, the first upper vestibule rod and the second upper vestibule rod, and then welding a main vestibule rod, a web rod and an inclined rod, thereby completing the welding installation of the pipe truss member with large span, variable cross section and multiple curved surfaces;
s5, hoisting the pipe trusses for whole trusses:
on a beam column platform, large-scale hoisting equipment is utilized to hoist a first pipe truss member and a second pipe truss member respectively, then a secondary truss is hoisted between the first pipe truss member and the second pipe truss member, then a third pipe truss member is hoisted, a secondary truss between the second pipe truss member and the third pipe truss member is hoisted, and finally the remaining pipe truss members and the secondary truss are hoisted in sequence, so that the whole truss installation construction process of the large-span pipe truss is completed.
Preferably, in step S4, the pipe truss sea beam distance detection device includes a main slide bar assembly, a special-shaped Z bar assembly, a limiting sliding pawl assembly, and a display screen, where one end of the special-shaped Z bar assembly is connected to the main slide bar assembly, the limiting sliding pawl assembly is provided with three parts and is respectively installed at the other end of the special-shaped Z bar assembly and at two ends of the main slide bar assembly, and the display screen is installed on the special-shaped Z bar assembly.
Preferably, the limiting sliding claw assembly comprises a sliding claw base, a front limiting sliding claw, a rear limiting sliding claw and a sliding claw hinge A, the sliding claw hinge A is arranged on the upper end face of the sliding claw base, the front limiting sliding claw and the rear limiting sliding claw are respectively arranged at the front and rear positions of the lower end face of the sliding claw base, the front limiting sliding claw and the rear limiting sliding claw are both arc-shaped, and a plurality of uniformly distributed universal balls are arranged on the inner walls of the arc-shaped front limiting sliding claw and the arc-shaped rear limiting sliding claw.
Preferably, the main slide bar assembly comprises a first main slide bar and a second main slide bar, the left end of the first main slide bar is arranged in an axial center pipe hole at the right end of the second main slide bar, a main slide bar return spring is arranged in an axial center pipe hole of the second main slide bar, the right end of the main slide bar return spring is fixed at the left end of the first main slide bar, and the left end of the main slide bar return spring is fixed on the inner wall of the left end of the second main slide bar; the special-shaped Z-shaped rod assembly comprises an upper supporting rod, a first middle vertical rod, a second middle vertical rod and a lower supporting rod, wherein the lower end of the first middle vertical rod is inserted into an axial center pipe hole at the upper end of the second middle vertical rod, a middle vertical rod reset spring is arranged in an axial center pipe hole of the second middle vertical rod, one end of the middle vertical rod reset spring is fixed at the lower end of the first middle vertical rod, the other end of the middle vertical rod reset spring is fixed on the inner end wall of the lower end of the second middle vertical rod, one ends of the upper supporting rod and the lower supporting rod are respectively and vertically fixed at the upper end of the first middle vertical rod and the lower end of the; the right end of the first main sliding rod, the left end of the second main sliding rod and the other end of the lower support rod are connected with a sliding claw hinge joint B through bearings, and the sliding claw hinge joint B is hinged to the sliding claw hinge joint A.
Preferably, a first laser ranging transmitting end A and a first laser ranging receiving end B are respectively arranged on the sliding claw hinge joints B at the two ends of the main sliding rod assembly.
Preferably, a second laser ranging transmitting end A is arranged on the outer side of a front limiting sliding claw of the limiting sliding claw assembly at the right end of the first main sliding rod, an extension rod is arranged on a sliding claw base of the limiting sliding claw assembly at the end of the lower supporting rod, and a second laser ranging receiving end B is arranged at the front end of the extension rod.
Preferably, circular arc-shaped notches are formed in the inner end faces of the sliding jaw bases of the limiting sliding jaw assemblies at the two ends of the main sliding rod assembly.
Preferably, the lower vestibule jig frame is composed of a lower vestibule frame base and an L-shaped lower vestibule frame, the L-shaped lower vestibule frame is arranged on the lower vestibule frame base, the upper vestibule jig frame is composed of an upper vestibule frame base and an F-shaped upper vestibule frame, the F-shaped upper vestibule frame is arranged on the upper vestibule frame base in an inverted manner, and the first upper vestibule rod and the second upper vestibule rod of the pipe truss member are respectively arranged on the upper cross rod and the lower cross rod of the F-shaped upper vestibule frame in the inverted manner.
Preferably, in step S5, the hoisting of the pipe truss structure on the beam-column platform includes the steps of: firstly, the pipe truss structure is fixed through a guy cable, then a bottom support additionally arranged at the bottom of the pipe truss structure is firmly welded with a preset embedded part on a beam column platform, and then bidirectional scissors support is carried out between the top end of a concrete column and an upper chord of the pipe truss structure, so that the pipe truss structure is prevented from deflection and displacement, and the pipe truss structure is hoisted.
Preferably, the hinge joint of the sliding claw hinge joint B and the sliding claw hinge joint a, the sliding claw hinge joint B is respectively arranged on the bearings connected with the first main slide bar, the second main slide bar and the lower support bar, and on the bearings connected with the first middle vertical bar, the lower support bar and the second middle vertical bar, the sliding claw hinge joint B is respectively provided with a high-precision angle rotation sensor, and the extension rod is made of metal.
The invention has the beneficial effects that:
the construction method for installing the whole large-span pipe truss is simple and convenient in steps, model construction and node deepening design are carried out on the drawing of the whole large-span pipe truss through Tekla software, the deepening drawing is output, a construction list and a rod piece model are output, the accuracy of a material component list is improved, and the possibility of material leakage and material mistake is avoided; the axis network retest of the whole pipe truss model is realized by a control mode of integral measurement and release and local measurement, the accuracy of the material size is verified, the size position of the whole pipe truss is optimized according to the actual measurement result, and the convenience of later installation is improved; the jig frame arranged through the pipe truss member and the pipe truss broken rod distance detection device are used for detecting, verifying and adjusting the distance between the lower broken rod and the two upper broken rods of the pipe truss member, so that the smooth welding installation of the pipe truss member is ensured, and the working efficiency and the accuracy of the welding installation are improved. The construction method for installing the whole large-span pipe truss is mature and standard in technology, and particularly aims at splicing, welding and hoisting of large-span, variable-section and multi-curved-surface pipe truss members, so that the construction difficulty is low, the error rate is small, the process controllability is high, the construction efficiency is high, and the construction method is high in quality, economical and efficient and has great popularization value.
Drawings
FIG. 1: a schematic view of a welded installation of a pipe truss member in an embodiment of the invention;
FIG. 2: the pipe truss stoke distance detection device in the embodiment of the invention is in a schematic structural view.
Detailed Description
To facilitate understanding of those skilled in the art, the present invention will be further described with reference to specific examples.
A construction method for installing whole large-span pipe trusses comprises the following steps:
s1, building a pipe truss whole truss model:
carrying out model construction and node deepening design on a drawing of a whole large-span pipe truss by Tekla software, outputting a deepened drawing, constructing a list and a rod piece model, generating a material list, purchasing raw materials, cutting and blanking intersecting lines, and transporting the material list to a construction site;
and (3) carrying out computer-aided drawing on the intersecting line on a transparent plastic film according to the following steps of 1: 1 drawing a sample plate for inspection, marking the serial number of the pipe fitting on the sample plate, and clinging the sample plate to the pipe orifice of the intersecting line according to the line marks of 'upper, lower, left and right' during inspection to inspect the matching degree.
S2, axis net retest of the pipe truss whole truss model:
firstly, measuring and setting a main control axis according to the on-site visual condition, then encrypting each building axis on the basis, completing the overall measurement and release of the plane control network, and performing local measurement control by adopting a rectangular coordinate method; marking the center line of the pre-buried iron plate well, measuring all point position data by using a total station, feeding the data back to a drawing for comprehensive analysis, and optimizing the size and the position of the whole pipe truss according to the actual measurement result, so that the whole pipe truss is installed more smoothly.
S3, laying a moulding bed for installing the pipe truss framework:
the utility model provides a pipe truss member, specifically be a large-span, changeable cross section, triangle-shaped pipe truss member of many curved surfaces, pipe truss member adopts the side-standing mode welding installation, carries out the model through the computer to the pipe truss member of side-standing and builds to the bed-jig in the welding installation process of pipe truss member carries out node layout design, outputs bed-jig layout design drawing, then installs the bed-jig that comprises a plurality of bed-jig 400 that passes in the dark under, the bed-jig 500 that passes in the dark according to the drawing on level and smooth ground.
As shown in fig. 1, a lower vestibule jig frame 400 of the jig frame is arranged opposite to an upper vestibule jig frame 500, the lower vestibule jig frame 400 is composed of a lower vestibule frame base 401 and an L-shaped lower vestibule frame 401, the L-shaped lower vestibule frame 401 is arranged on the lower vestibule frame base 402, the upper vestibule jig frame 500 is composed of an upper vestibule frame base 501 and an F-shaped upper vestibule frame 502, and the F-shaped upper vestibule frame 502 is arranged on the upper vestibule frame base 501 in an inverted manner.
S4, welding and installing the pipe truss members:
as shown in fig. 1 and 2, the pipe truss member includes a lower hollow rod 100, a first upper hollow rod 200, and a second upper hollow rod 300, wherein a plurality of web members are disposed between the lower hollow rod 100 and the first upper hollow rod 200, and between the first upper hollow rod 200 and the second upper hollow rod 300, and a plurality of main hollow rods and inclined rods are disposed between the first upper hollow rod 200 and the second upper hollow rod 300.
First, the lower spline 100 of the pipe truss member is placed on the L-shaped lower spline 401 of the plurality of lower spline frames 400, and the first upper spline 200 and the second upper spline 300 of the pipe truss member are respectively placed on the upper cross bar 504 and the lower cross bar 503 of the F-shaped upper spline 502, which are inverted from the plurality of upper spline frames 500.
Then, the pipe truss spline distance detection device 600 is used for detecting, verifying and adjusting the distances among the lower spline 100, the first upper spline 200 and the second upper spline 300, respectively fixing the lower spline 100, the first upper spline 200 and the second upper spline 300, and then welding the main spline, the web member and the diagonal member, thereby completing the welding and installation of the large-span, variable cross-section and multi-curved-surface pipe truss member.
The pipe truss tension rod distance detection device 600 comprises a main sliding rod assembly 610, an abnormal-shape Z rod assembly 620, a limiting sliding claw assembly 630 and a display screen 640, wherein one end of the abnormal-shape Z rod assembly 620 is connected to the main sliding rod assembly 610, the limiting sliding claw assembly 630 is provided with three parts and is respectively installed at the other end of the abnormal-shape Z rod assembly 620 and two ends of the main sliding rod assembly 610, and the display screen 640 is installed on the abnormal-shape Z rod assembly 620.
The master slide bar assembly 610 comprises a first master slide bar 611 and a second master slide bar 612, wherein the left end of the first master slide bar 611 is arranged in a central axial tube hole at the right end of the second master slide bar 612, a master slide bar return spring 613 is arranged in the central axial tube hole of the second master slide bar 612, the right end of the master slide bar return spring 613 is fixed at the left end of the first master slide bar 611, and the left end of the master slide bar return spring 613 is fixed on the inner wall of the left end of the second master slide bar 612.
Heterotypic Z pole subassembly 620, including upper strut 621, montant 622 in the first, montant 623 in the second, lower strut 624, montant reset spring 625 in inserting in the axle center tube hole of montant 623 upper end in the second in the first, montant reset spring 625 is provided with in the axle center tube hole of montant 623 in the second, montant reset spring 625 one end is fixed at montant 622 lower extreme in the first, the other end is fixed on the inner end wall of montant 623 lower extreme in the second, upper strut 621, montant 624 one end is all through the bearing respectively vertical fixation in montant 622 upper end in the first, montant 623 lower extreme in the second, and upper strut 621 and lower strut 624 mutually perpendicular.
The limiting sliding claw assembly 630 comprises a sliding claw base 631, a front limiting sliding claw 632, a rear limiting sliding claw 633 and a sliding claw hinge A634, the sliding claw hinge A634 is arranged on the upper end face of the sliding claw base 631, the front limiting sliding claw 632 and the rear limiting sliding claw 633 are respectively arranged at the front and rear positions of the lower end face of the sliding claw base 631, the front limiting sliding claw 632 and the rear limiting sliding claw 633 are both arc-shaped, and a plurality of uniformly distributed universal balls 635 are arranged on the inner walls of the arc-shaped front limiting sliding claw 632 and the rear limiting sliding claw 633. Arc-shaped recesses 637 are provided on the inner end faces of the pawl bases 631 of the limit pawl assemblies 630 at both ends of the main slide bar assembly 610.
The right end of the first main sliding rod 611, the left end of the second main sliding rod 612 and the other end of the lower support 624 are all connected with a sliding jaw hinge B650 through bearings, and the sliding jaw hinge B650 is hinged to the sliding jaw hinge a 634.
A first laser ranging transmitting end a614 and a first laser ranging receiving end B615 are respectively arranged on sliding claw hinges B650 at two ends of the main sliding rod assembly 610, the first laser ranging transmitting end a614 and the first laser ranging receiving end B615 are used in cooperation, so that the distance between the first laser ranging transmitting end a614 and the first laser ranging receiving end B615 in the sliding process of the first main sliding rod 611 and the second main sliding rod 612 is measured in real time, that is, the distance change between the lower entering rod 100 and the first upper entering rod 200 is measured in real time.
A second laser ranging emitting end A636 is arranged outside a front limiting sliding claw 632 of the limiting sliding claw assembly 630 at the right end of the first main sliding rod 611, an extension rod 638 is arranged on a sliding claw base 631 of the limiting sliding claw assembly 630 at the end of the lower support 624, a second laser ranging receiving end B639 is arranged at the front end of the extension rod 638, and the extension rod 638 is made of metal with moderate hardness, so that the extension rod 638 can be bent conveniently to adjust the position of the second laser ranging receiving end B639. The distance between the first upper hallway rod 200 and the second upper hallway rod 300 can be measured in real time through the second laser ranging transmitting terminal a636 and the second laser ranging receiving terminal B639.
The hinge joint of the sliding claw joint B650 and the sliding claw joint a634, and the bearings connecting the sliding claw joint B650 with the first main sliding rod 611, the second main sliding rod 612, and the lower support rod 624, and the bearings connecting the upper support rod 621 with the first middle vertical rod 622, the lower support rod 624, and the second middle vertical rod 623 are all provided with high-precision angle rotation sensors, which is convenient for measuring whether the lower connecting rod 100, the first upper connecting rod 200, and the second upper connecting rod 300 are parallel and the angle change therebetween in real time.
When the pipe truss inserted bar distance detection device 600 is used, the three limiting sliding claw assemblies 630 respectively slide on the lower inserted bar 100, the first upper inserted bar 200 and the second upper inserted bar 300, and the lower inserted jig frame 400 and the upper inserted jig frame 500 of the jig frame do not hinder the sliding of the limiting sliding claw assemblies 630 of the pipe truss inserted bar distance detection device 600; meanwhile, the pipe truss connecting rod distance detection device 600 welds the main connecting rod, the web member and the inclined rod in real time in the sliding detection process, so that the blockage of the pipe truss connecting rod distance detection device 600 in welding of the pipe truss members is avoided in time, and the pipe truss connecting rod distance detection device is convenient and fast.
S5, hoisting the pipe trusses for whole trusses:
on the beam column platform, firstly, a first pipe truss component and a second pipe truss component are respectively hoisted by large-scale hoisting equipment. Wherein on the beam column platform, the hoist and mount of pipe truss member, its step is: firstly, the pipe truss structure is fixed through a guy cable, then a bottom support additionally arranged at the bottom of the pipe truss structure is firmly welded with a preset embedded part on a beam column platform, and then bidirectional scissors support is carried out between the top end of a concrete column and an upper chord of the pipe truss structure, so that the pipe truss structure is prevented from deflection and displacement, and the pipe truss structure is hoisted.
And then hoisting a secondary truss between the first pipe truss member and the second pipe truss member, hoisting the third pipe truss member, hoisting a secondary truss between the second pipe truss member and the third pipe truss member, and finally sequentially pushing and hoisting the rest pipe truss members and secondary trusses, thereby completing the whole truss installation construction process of the large-span pipe truss.
The construction method for installing the whole large-span pipe truss is simple and convenient in steps, model construction and node deepening design are carried out on the drawing of the whole large-span pipe truss through Tekla software, the deepening drawing is output, a construction list and a rod piece model are output, the accuracy of a material component list is improved, and the possibility of material leakage and material mistake is avoided; the axis network retest of the whole pipe truss model is realized by a control mode of integral measurement and release and local measurement, the accuracy of the material size is verified, the size position of the whole pipe truss is optimized according to the actual measurement result, and the convenience of later installation is improved; the jig frame arranged through the pipe truss member and the pipe truss broken rod distance detection device are used for detecting, verifying and adjusting the distance between the lower broken rod and the two upper broken rods of the pipe truss member, so that the smooth welding installation of the pipe truss member is ensured, and the working efficiency and the accuracy of the welding installation are improved.
The construction method for installing the whole large-span pipe truss is mature and standard in technology, and particularly aims at splicing, welding and hoisting of large-span, variable-section and multi-curved-surface pipe truss members, so that the construction difficulty is low, the error rate is small, the process controllability is high, the construction efficiency is high, and the construction method is high in quality, economical and efficient and has great popularization value.
The foregoing is an illustrative description of the invention, and it is clear that the specific implementation of the invention is not restricted to the above-described manner, but it is within the scope of the invention to apply the inventive concept and solution to other applications without substantial or direct modification.
Claims (10)
1. A construction method for installing whole trusses of large-span pipe trusses is characterized by comprising the following steps:
s1, building a pipe truss whole truss model:
carrying out model construction and node deepening design on a drawing of a whole large-span pipe truss by Tekla software, outputting a deepened drawing, constructing a list and a rod piece model, generating a material list, purchasing raw materials, cutting and blanking intersecting lines, and transporting the material list to a construction site;
and (3) carrying out computer-aided drawing on the intersecting line on a transparent plastic film according to the following steps of 1: 1, drawing a sample plate for inspection, marking the serial number of the pipe fitting on the sample plate, and closely attaching the sample plate to the pipe orifice of the intersecting line according to the line marks of 'upper, lower, left and right' during inspection to inspect the matching degree;
s2, axis net retest of the pipe truss whole truss model:
firstly, measuring and setting a main control axis according to the on-site visual condition, then encrypting each building axis on the basis, completing the overall measurement and release of the plane control network, and performing local measurement control by adopting a rectangular coordinate method; marking the center line of the pre-buried iron plate, measuring all point position data by using a total station, feeding the data back to a drawing for comprehensive analysis, and optimizing the size and the position of the whole pipe truss according to the actual measurement result to ensure that the whole pipe truss is installed more smoothly;
s3, laying a moulding bed for installing the pipe truss framework:
the method comprises the following steps that a pipe truss member is welded and installed in a side-standing mode, a computer is used for conducting model building on the side-standing pipe truss member, node layout design is conducted on a jig frame in the welding and installation process of the pipe truss member, a jig frame layout design drawing is output, then a jig frame consisting of a plurality of lower entering jig frames (400) and upper entering jig frames (500) is installed on the flat ground according to the drawing, and the lower entering jig frames (400) and the upper entering jig frames (500) are arranged oppositely;
the pipe truss component comprises a lower access rod (100), a first upper access rod (200) and a second upper access rod (300), wherein a plurality of web members are arranged between the lower access rod (100) and the first upper access rod (200) as well as between the second upper access rod (300), and a plurality of main access rods and inclined rods are arranged between the first upper access rod (200) and the second upper access rod (300);
s4, welding and installing the pipe truss members:
placing a lower access rod (100) of a pipe truss member on a plurality of lower access formworks (400), respectively placing a first upper access rod (200) and a second upper access rod (300) of the pipe truss member on an upper layer and a lower layer of a plurality of upper access formworks (500), then detecting, verifying and adjusting the distances among the lower access rod (100), the first upper access rod (200) and the second upper access rod (300) by adopting a pipe truss access rod distance detection device (600), respectively fixing the lower access rod (100), the first upper access rod (200) and the second upper access rod (300), and then welding a main access rod, a web member and an inclined rod, thereby completing the welding installation of the large-span, variable cross-section and multi-curved-surface pipe truss member;
s5, hoisting the pipe trusses for whole trusses:
on a beam column platform, large-scale hoisting equipment is utilized to hoist a first pipe truss member and a second pipe truss member respectively, then a secondary truss is hoisted between the first pipe truss member and the second pipe truss member, then a third pipe truss member is hoisted, a secondary truss between the second pipe truss member and the third pipe truss member is hoisted, and finally the remaining pipe truss members and the secondary truss are hoisted in sequence, so that the whole truss installation construction process of the large-span pipe truss is completed.
2. The installation and construction method for large-span pipe trusses according to claim 1, wherein in step S4, the pipe truss ridge distance detection device (600) comprises a main slide bar assembly (610), special-shaped Z-bar assemblies (620), a limiting sliding claw assembly (630) and a display screen (640), one end of each special-shaped Z-bar assembly (620) is connected to the main slide bar assembly (610), the limiting sliding claw assemblies (630) are provided with three and respectively installed at the other end of each special-shaped Z-bar assembly (620) and at two ends of the main slide bar assembly (610), and the display screen (640) is installed on each special-shaped Z-bar assembly (620).
3. The large-span pipe truss roof truss installation and construction method according to claim 2, wherein the limiting sliding claw assembly (630) comprises a sliding claw base (631), a front limiting sliding claw (632), a rear limiting sliding claw (633) and a sliding claw hinge A (634), the sliding claw hinge A (634) is arranged on the upper end face of the sliding claw base (631), the front limiting sliding claw (632) and the rear limiting sliding claw (633) are respectively arranged at the front and rear positions of the lower end face of the sliding claw base (631), the front limiting sliding claw (632) and the rear limiting sliding claw (633) are both arc-shaped, and a plurality of uniformly distributed universal balls (635) are respectively arranged on the inner walls of the arc-shaped front limiting sliding claw (632) and the rear limiting sliding claw (633).
4. The installation and construction method for large-span pipe truss roof trusses according to claim 3, wherein the main slide bar assembly (610) comprises a first main slide bar (611) and a second main slide bar (612), the left end of the first main slide bar (611) is arranged in a central tube hole at the right end of the second main slide bar (612), a main slide bar return spring (613) is arranged in a central tube hole of the second main slide bar (612), the right end of the main slide bar return spring (613) is fixed at the left end of the first main slide bar (611), and the left end of the main slide bar return spring (613) is fixed on the inner wall of the left end of the second main slide bar (612); the special-shaped Z-shaped rod assembly (620) comprises an upper supporting rod (621), a first middle vertical rod (622), a second middle vertical rod (623) and a lower supporting rod (624), the lower end of the first middle vertical rod (622) is inserted into an axial center pipe hole at the upper end of the second middle vertical rod (623), a middle vertical rod reset spring (625) is arranged in an axial center pipe hole of the second middle vertical rod (623), one end of the middle vertical rod reset spring (625) is fixed at the lower end of the first middle vertical rod (622), the other end of the middle vertical rod (623) is fixed on the inner end wall of the lower end of the second middle vertical rod (623), one ends of the upper supporting rod (621) and the lower supporting rod (624) are respectively and vertically fixed at the upper end of the first middle vertical rod (622) and the lower end of the second middle vertical rod (623) through bearings; the right end of the first main sliding rod (611), the left end of the second main sliding rod (612) and the other end of the lower supporting rod (624) are connected with a sliding claw hinge joint B (650) through bearings, and the sliding claw hinge joint B (650) is hinged to the sliding claw hinge joint A (634).
5. The installation and construction method for large-span pipe trusses according to claim 4, wherein a first laser ranging transmitting end A (614) and a first laser ranging receiving end B (615) are respectively arranged on sliding claw hinges B (650) at two ends of the main sliding rod assembly (610).
6. The large-span pipe truss roof truss installation and construction method according to claim 4, wherein a second laser ranging emitting end A (636) is arranged outside a front limiting sliding claw (632) of a limiting sliding claw assembly (630) at the right end of the first main sliding rod (611), an extending rod (638) is arranged on a sliding claw base (631) of the limiting sliding claw assembly (630) at the end of the lower supporting rod (624), and a second laser ranging receiving end B (639) is arranged at the front end of the extending rod (638).
7. The installation and construction method for large-span pipe trusses according to any one of claims 4 to 6, wherein the inner end faces of the sliding pawl bases (631) of the limiting sliding pawl assemblies (630) at both ends of the main sliding rod assembly (610) are provided with circular arc-shaped notches (637).
8. The installation and construction method for the whole large-span pipe trusses according to claim 1, wherein the lower access jig frame (400) is composed of a lower access frame base (401) and an L-shaped lower access frame (401), the L-shaped lower access frame (401) is arranged on the lower access frame base (402), the upper access jig frame (500) is composed of an upper access frame base (501) and an F-shaped upper access frame (502), the F-shaped upper access frame (502) is arranged on the upper access frame base (501) in an inverted manner, and the first upper access rod (200) and the second upper access rod (300) of the pipe truss member are respectively arranged on an upper cross rod (504) and a lower cross rod (503) of the F-shaped upper access frame (502) in the inverted manner.
9. The installation and construction method for large-span pipe trusses according to claim 1, wherein in the step of S5, the pipe truss members are hoisted on the beam-column platform by the steps of: firstly, the pipe truss structure is fixed through a guy cable, then a bottom support additionally arranged at the bottom of the pipe truss structure is firmly welded with a preset embedded part on a beam column platform, and then bidirectional scissors support is carried out between the top end of a concrete column and an upper chord of the pipe truss structure, so that the pipe truss structure is prevented from deflection and displacement, and the pipe truss structure is hoisted.
10. The installation and construction method for large-span pipe truss roof trusses according to claim 4, wherein the hinged joint of the sliding claw joint B (650) and the sliding claw joint A (634), the bearings of the sliding claw joint B (650) respectively connected with the first main sliding rod (611), the second main sliding rod (612) and the lower support rod (624), and the bearings of the upper support rod (621) connected with the first middle vertical rod (622), the lower support rod (624) connected with the second middle vertical rod (623) are respectively provided with a high-precision angle rotation sensor, and the extension rod (638) is made of metal.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114809652A (en) * | 2022-05-20 | 2022-07-29 | 中国建筑第二工程局有限公司 | BIM-based roof arc truss positioning and hoisting method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5343855Y2 (en) * | 1975-12-27 | 1978-10-21 | ||
| CN102179651A (en) * | 2011-04-06 | 2011-09-14 | 中国建筑第八工程局有限公司 | On-site plane trusses of extra-large welded ball net frame and method for splicing three-dimensional sections |
| CN102877595A (en) * | 2012-10-30 | 2013-01-16 | 中国二十二冶集团有限公司 | Method for manufacturing large-size and large-span steel truss |
| CN104631838A (en) * | 2014-12-08 | 2015-05-20 | 永升建设集团有限公司 | Method for installing abnormal-shaped extremely-large overhung steel truss under process monitoring construction |
| CN108252524A (en) * | 2017-12-22 | 2018-07-06 | 上海市机械施工集团有限公司 | A kind of assembly moulding bed and a kind of hyperbola truss assembling method |
-
2020
- 2020-07-08 CN CN202010649570.9A patent/CN111691684B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5343855Y2 (en) * | 1975-12-27 | 1978-10-21 | ||
| CN102179651A (en) * | 2011-04-06 | 2011-09-14 | 中国建筑第八工程局有限公司 | On-site plane trusses of extra-large welded ball net frame and method for splicing three-dimensional sections |
| CN102877595A (en) * | 2012-10-30 | 2013-01-16 | 中国二十二冶集团有限公司 | Method for manufacturing large-size and large-span steel truss |
| CN104631838A (en) * | 2014-12-08 | 2015-05-20 | 永升建设集团有限公司 | Method for installing abnormal-shaped extremely-large overhung steel truss under process monitoring construction |
| CN108252524A (en) * | 2017-12-22 | 2018-07-06 | 上海市机械施工集团有限公司 | A kind of assembly moulding bed and a kind of hyperbola truss assembling method |
Non-Patent Citations (1)
| Title |
|---|
| 刘陈勇: "大跨度管桁架施工技术", 《施工技术》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114809652A (en) * | 2022-05-20 | 2022-07-29 | 中国建筑第二工程局有限公司 | BIM-based roof arc truss positioning and hoisting method |
| CN114809652B (en) * | 2022-05-20 | 2023-03-31 | 中国建筑第二工程局有限公司 | BIM-based roof arc truss positioning and hoisting method |
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