CN104264781B - Latticed cylindrical surface steel structure latticed shell and construction method thereof - Google Patents
Latticed cylindrical surface steel structure latticed shell and construction method thereof Download PDFInfo
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- CN104264781B CN104264781B CN201410597475.3A CN201410597475A CN104264781B CN 104264781 B CN104264781 B CN 104264781B CN 201410597475 A CN201410597475 A CN 201410597475A CN 104264781 B CN104264781 B CN 104264781B
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 73
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- 238000010276 construction Methods 0.000 title claims abstract description 47
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- 239000000725 suspension Substances 0.000 claims description 42
- 239000004567 concrete Substances 0.000 claims description 11
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Abstract
A latticed cylindrical surface steel structure reticulated shell and a construction method thereof are disclosed, the latticed cylindrical surface steel structure reticulated shell is formed by obliquely crossing and sleeving eight oval frameworks, the cross section of the latticed cylindrical surface steel structure reticulated shell is circular and is divided into a front arc surface and a rear arc surface, each oval framework is a closed structure formed by a double-pipe truss and a single-pipe structure frame, the double-pipe truss of the eight oval frameworks is positioned on the front arc surface, and the single-pipe structure frame is positioned on the rear arc surface; according to the invention, the oval framework is split into a plurality of arc-shaped members, construction is carried out by adopting a sectional hoisting mode and a sectional installation mode, the three-point hoisting mode is adopted for hoisting to a specified position, and the adjustment of the spatial position and the rotation angle of the members is carried out by utilizing the adjustment of the steel wire rope and the adjustment of the chain block, so that the accurate butt joint of the member interfaces is realized by multiple guarantee means, and the accurate installation of the plane and height installation positions of the members and the rotation angle of the interfaces is ensured. The method can be widely applied to the construction of large-scale space three-dimensional arc structures.
Description
Technical field
The present invention relates to a kind of building structure and construction method, particularly a kind of irregular building structure and construction method thereof.
Background technology
At present, traditional building structure is more single, and common arcuate structure is planar structure, is mainly arc girder steel. But along with the development of building trade, various building structure produces thereupon, traditional decoration framework can not meet present demand, and the installation method of plane arc girder steel is fixed on after putting in place for direct lifting and completes on structural column, this mode precision is easy to control, operate also fairly simple, but, if there is more complicated structure, such as three dimension arch member this extensive, large-sized also without can supporting construction situation time, general installation method is difficult to realize so high installation accuracy, cannot meet this requirement.
Summary of the invention
The object of this invention is to provide a kind of latticed cylinder Steel Shell and construction method thereof, the installation that solve arc component is accurately difficult to the technical problem ensureing; And solution ensures the problem of working security and efficiency of construction.
For achieving the above object, the present invention adopts following technical scheme:
A kind of latticed cylinder Steel Shell, be connected with the agent structure in net shell by supporting construction, this latticed cylinder Steel Shell is socketed by eight mutual diagonal cross of oval skeleton, the cross section of this latticed cylinder Steel Shell is for circle and be divided into front arc and rear arc, each oval skeleton is the closing structure being configured to by two-tube truss and single tube structure, and the two-tube truss of eight oval skeletons is positioned at front arc, single tube structure chord position in rear arc.
Agent structure in this latticed cylinder Steel Shell comprises Reinforced Concrete Core Walls Structure and steel frame floor structure, and concrete steps are as follows:
Step 1, row's pylon is built at the even interval of peripheral position that is centered around front arc to be onstructed, is connected with the bracing frame towards front arc on every pylon, connects the tripod towards rear arc on floor structure or Core Walls Structure.
Step 2, is divided into multistage arc component by each oval skeleton, adopts 3 lift-on/lift-off systems to lift piecemeal from bottom to top arc component to bracing frame or tripod according to the incline direction of oval skeleton.
Step 3, lifts after two sections of arc components, starts to carry out the connection between arc component.
Step 4, lifts arc component one by one, also connects one by one, completes an oval skeleton and installs.
Step 5, according to step 2, to step 4, eight oval skeleton synchronous constructions, until whole installation in position, connect the supporting construction of oval skeleton and agent structure.
Step 6, utilizes eight the oval skeletons of jack pair that are connected on each bracing frame and tripod to carry out overall absolute altitude control and regulation.
Step 7, removes pylon and tripod, and the load of eight oval skeletons itself is passed to the supporting construction between oval skeleton and agent structure, completes latticed cylinder Steel Shell construction.
In step 2,3 lift-on/lift-off systems of the arc component of each oval skeleton, concrete steps for the lifting of single tube structure frame are as follows: step 1, on every section of single tube arc component, connect three hangers as suspension centre according to even interval, the position of left, center, right, be labeled as successively No. 1 suspension centre, No. 2 suspension centres and No. 3 suspension centres; According to the incline direction of oval skeleton Piecemeal erection from bottom to top, except key point of the each mark in two ends of first paragraph single tube arc component for a bit, 2, only at one end key point of mark is for a bit for all the other each single tube arc components, and there is a crosshair position line in length and breadth the position of single tube arc component lower surface corresponding any and two point coordinates; The middle part in every section of single tube arc component outside is labeled as 3 points and pastes prismatic lens.
Step 2, is connected No. 1 hoisting wirerope, No. 2 hoisting wireropes with No. 3 respectively corresponding three suspension centres of hoisting wirerope, wherein, be connected with respectively No. 1 jack and No. 2 jacks on No. 1 hoisting wirerope and No. 2 hoisting wireropes;
Step 3, utilize boom hoisting to start to lift first paragraph single tube arc component, utilize No. 1 jack and No. 2 jacks to regulate rope capacity, first paragraph single tube arc component is lifted to the tripod of adjacent two floor structures or Core Walls Structure, the position line of crosshair in length and breadth that ensures the two ends of first paragraph single tube arc component aligns with the position line of crosshair in length and breadth on the support being fixed on tripod respectively, the locus of this support be according to a bit, the coordinate position of 2 determines.
Step 4, a bit, two point coordinates reach after assigned address, No. 2 hoisting wirerope is automatically-unhooked, connects No. 1 and regulate steel wire rope between No. 2 suspension centres and one of them floor structure or Core Walls Structure, regulates on steel wire rope for No. 1 and is connected with adjusting jack No. 1 near one end of floor structure or Core Walls Structure.
Step 5, utilize the levelness that regulates for No. 1 steel wire rope and No. 1 adjusting jack to carry out first paragraph single tube arc component to regulate adjusting position, in adjustment process, taking the prismatic lens of 3 as observation benchmark, make three point coordinates reach assigned address, complete being connected and installed of first paragraph single tube arc component.
Step 6, utilize boom hoisting to start to lift second segment single tube arc component, utilize No. 1 jack and No. 2 jacks to regulate rope capacity, second segment single tube arc component is lifted between first paragraph single tube arc component and the tripod of another one floor structure or Core Walls Structure, the position line of crosshair in length and breadth that ensures second segment single tube arc component aligns with the position line of crosshair in length and breadth that is fixed on the support on tripod, and the locus of this support is to determine according to the coordinate position of a bit.
Step 7, one point coordinates reaches after assigned address, No. 2 steel wire rope is automatically-unhooked, connects No. 1 and regulate steel wire rope between No. 2 suspension centres and one of them floor structure or Core Walls Structure, regulates on steel wire rope for No. 1 and is connected with adjusting jack No. 1 near one end of floor structure or Core Walls Structure.
Step 8, utilize the levelness that regulates for No. 1 steel wire rope and No. 1 adjusting jack to carry out second segment single tube arc component to regulate adjusting position, in adjustment process taking the prismatic lens of 3 as observation benchmark, make three point coordinates reach assigned address, and the connected node of second segment single tube arc component and first paragraph single tube arc component is welded and fixed, complete being connected and installed of second segment single tube arc component.
Step 9, repeating step six is to step 8, by all the other each section of single tube arc component installation in position.
In the step 4 and step 7 of the lifting of single tube structure frame, No. 1 regulates steel wire rope is 60 °～90 ° with the angle on ground before adjusting.
In step 2,3 lift-on/lift-off systems of the arc component of each oval skeleton, concrete steps for two-tube truss lifting are as follows: step 1, on every section of Double-tube arc-shaped member, connect three hangers as suspension centre according to even interval, the position of left, center, right, be labeled as successively No. 4 suspension centres, No. 5 suspension centres and No. 6 suspension centres; According to the incline direction of oval skeleton Piecemeal erection from bottom to top, inside first paragraph Double-tube arc-shaped member, the two ends of chord member key point of each mark is the two ends mark C point, D point of A point, B point, outside chord member, all the other each Double-tube arc-shaped members are only same one end mark C point of A point, outside chord member in chord member one end, inner side key point of mark, the position of Double-tube arc-shaped member below corresponding A point, B point, C point and D point coordinates is all connected with a supporting leg, has crosshair position line in length and breadth on the lower surface of supporting leg; The middle part mark E point of chord member paste prismatic lens outside every section of Double-tube arc-shaped member.
Step 2, is connected No. 4 hoisting wireropes, No. 5 hoisting wireropes with No. 6 respectively corresponding three suspension centres of hoisting wirerope, wherein, be connected with No. 4 jacks and No. 5 jacks on No. 4 hoisting wireropes and No. 5 hoisting wireropes.
Step 3, utilize boom hoisting to start to lift first paragraph Double-tube arc-shaped member, utilize No. 4 jacks and No. 5 jacks to regulate rope capacity, by first paragraph Double-tube arc-shaped lifting component on the bracing frame of adjacent two pylons, the position line of crosshair in length and breadth that ensures two supporting legs of first paragraph Double-tube arc-shaped member aligns with the position line of crosshair in length and breadth that is fixed on the bearing on bracing frame respectively and use that bolt is temporary fixed to be connected, and the locus of this bearing is that the coordinate position of ordering according to A point, B point, C point and D is definite.
Step 4, A point, B point, C point and D point coordinates reach after assigned address, and No. 5 hoisting wirerope is automatically-unhooked, connects No. 2 and regulate steel wire rope between No. 5 suspension centres and one of them pylon, regulates for No. 2 one end near pylon on steel wire ropes to be connected with adjusting jack No. 2.
Step 5, utilize the levelness that regulates for No. 2 steel wire rope and No. 2 adjusting jacks to carry out first paragraph Double-tube arc-shaped member to regulate adjusting position, the prismatic lens of ordering taking E in adjustment process is observation benchmark, make E point coordinates reach assigned address, the supporting leg of fastening first paragraph Double-tube arc-shaped member and the bolt of bracing frame bearing, complete being connected and installed of first paragraph Double-tube arc-shaped member.
Step 6, utilize boom hoisting to start to lift second segment Double-tube arc-shaped member, utilize No. 4 jacks and No. 5 jacks to regulate rope capacity, by second segment Double-tube arc-shaped lifting component between first paragraph Double-tube arc-shaped member and the bracing frame of another one pylon, the position line of crosshair in length and breadth that ensures the supporting leg of second segment Double-tube arc-shaped member aligns with the position line of crosshair in length and breadth that is fixed on the bearing on tripod and uses that bolt is temporary fixed to be connected, and the locus of this bearing is definite according to the coordinate position of a bit.
Step 7, one point coordinates reaches after assigned address, No. 5 steel wire rope is automatically-unhooked, connects No. 2 and regulate steel wire rope between No. 5 suspension centres and one of them floor structure or Core Walls Structure, regulates on steel wire ropes for No. 2 and is connected with adjusting jack No. 2 near one end of floor structure or Core Walls Structure.
Step 8, utilize the levelness that regulates for No. 2 steel wire rope and No. 2 adjusting jacks to carry out second segment Double-tube arc-shaped member to regulate adjusting position, the prismatic lens of ordering taking E in adjustment process is observation benchmark, make E point coordinates reach assigned address, the bolt of the supporting leg of fastening second segment Double-tube arc-shaped member and the bearing of bracing frame, and the connected node of second segment Double-tube arc-shaped member and first paragraph Double-tube arc-shaped member is welded and fixed, complete being connected and installed of second segment Double-tube arc-shaped member.
Step 9, repeating step six is to step 8, by all the other each section of Double-tube arc-shaped member installation in position.
In the step 4 and step 7 of two-tube truss lifting, No. 2 regulate steel wire rope is 60 °～90 ° with the angle on ground before adjusting.
Described pylon is made up of four root posts and the connecting rod that is connected between column, connects twice linking beam between pylon; There is bracing frame the side of pylon to the front arc level connection joint of net shell.
Support frame as described above comprises the horizontal support bar that is connected with pylon two root posts, is connected to the diagonal brace between horizontal support bar and column and is connected to the connecting rod between horizontal support bar; On every horizontal support bar, be fixed with two bearings.
Described bearing comprises the under(-)chassis being connected with bracing frame and is connected to the connecting plate for connecting with two-tube truss on under(-)chassis on described connecting plate, have the position line of crosshair in length and breadth of location use, between connecting plate and under(-)chassis, is connected with jack.
Described tripod comprise the horizon bar being connected with floor structure or Core Walls Structure and be connected to horizon bar and floor structure or Core Walls Structure between diagonal brace, on described horizon bar, be fixed with a support, this support comprises the limiting plate that two parallel spacing single tube structure framves are used and is connected to the location-plate between limiting plate bottom, has crosshair position line in length and breadth on described location-plate.
Compared with prior art the present invention has following characteristics and beneficial effect:
The present invention has overcome conventional method construction and installation precision and has been difficult to the shortcoming ensureing, has solved high efficiency, high accuracy and has completed the technical problem that three dimension arch member is constructed.
Oval skeleton is split into some arc components by the present invention, adopt the mode of segmental hoisting, Piecemeal erection to construct, in order to improve the installation accuracy of each section of arc component, adopt the mode handling of 3 liftings to assigned address, recycling regulates steel wire rope and regulates jack to carry out the locus of member and the adjusting of the anglec of rotation, after adjusting position, finally fix again, form space three-dimensional structure, multi-ensuring means have realized component interface accurately docks, ensured the plane of member and the installation site of height with and the installation of the anglec of rotation of interface accurate.
Pylon and the tripod etc. that the present invention adopts, for arc component lifting provides temporary supporting, simultaneously also for workmen provides reliable operating platform, ensured construction safety; 3 lift-on/lift-off systems that adopt in the present invention have realized the direction control to member in hoisting process; Automatic trip hooks device and has simplified operational sequence, ensured efficiency of construction; Measuring prism sheet and levelness are set and regulate steel wire rope can meet the three-dimensional accuracy requirement that member is installed, ensure joint quality. The present invention has increased safety guarantee to workmen when implementation space three dimension arch member is installed Accuracy and high efficiency, is a kind of safe and reliable, accurately efficient construction method.
The present invention can be widely used in the construction of extensive space three-dimensional arcuate structure.
Brief description of the drawings
Below in conjunction with accompanying drawing, the present invention will be further described in detail.
Fig. 1 is the structural representation of latticed cylinder Steel Shell of the present invention.
Fig. 2 is latticed cylinder Steel Shell front arc pylon distribution schematic diagram of the present invention.
Fig. 3 is latticed cylinder Steel Shell rear arc tripod distribution schematic diagram of the present invention.
Fig. 4 is pylon structure schematic diagram of the present invention.
Fig. 5 is the schematic diagram of two-tube truss lifting step 1 of the present invention.
Fig. 6 is the schematic diagram of two-tube truss lifting step 3 of the present invention.
Fig. 7 is the schematic diagram of two-tube truss lifting step 4 of the present invention.
Fig. 8 is the schematic diagram of two-tube truss lifting step 7 of the present invention.
Fig. 9 is the schematic diagram of two-tube truss lifting step 9 of the present invention.
Figure 10 is the schematic diagram that two-tube truss of the present invention has lifted.
Figure 11 is the schematic diagram of single tube structure frame lifting step 1 of the present invention.
Figure 12 is the plan structure schematic diagram of Figure 11.
Figure 13 is the schematic diagram of single tube structure frame lifting step 3 of the present invention lifting.
Figure 14 is the schematic diagram that single tube structure frame lifting step 3 of the present invention is installed.
Figure 15 is the schematic diagram of single tube structure frame lifting step 4 of the present invention.
Figure 16 is the schematic diagram of single tube structure frame lifting step 7 of the present invention.
Figure 17 is the schematic diagram of single tube structure frame lifting step 9 of the present invention.
Figure 18 is the schematic diagram that single tube structure frame of the present invention has lifted.
Reference numeral: 1-pylon, 2-bracing frame, 3-tripod, 4-floor structure or Core Walls Structure, the two-tube truss of 5-, 6-single tube structure frame, 7-supporting construction, 8-jack, 9-bearing, 10-support.
Detailed description of the invention
Embodiment is shown in Figure 1, this latticed cylinder Steel Shell, be connected with the agent structure in net shell by supporting construction 7, the supporting construction that described latticed cylinder Steel Shell is connected with agent structure comprises the support of encorbelmenting between top and the roofing of agent structure that is connected to net shell front arc, be connected to the bottom support bracket between bottom and the annex of agent structure of net shell front arc and be connected to the umbrella shaped support between middle part and the agent structure of net shell rear arc, and described bottom support bracket is welded on the beam of annex; Agent structure in this latticed cylinder Steel Shell comprises Reinforced Concrete Core Walls Structure and steel frame floor structure, this latticed cylinder Steel Shell is socketed by eight mutual diagonal cross of oval skeleton, the cross section of this latticed cylinder Steel Shell is for circle and be divided into front arc and rear arc, each oval skeleton is the closing structure being made up of two-tube truss 5 and single tube structure frame 6, and the two-tube truss of eight oval skeletons is positioned at front arc, single tube structure chord position in rear arc; Eight oval outer keel skeletons are measure-alike, transverse is 121 meters, minor axis is 110 meters, girth is 363 meters, wherein approximately 118 tons of single tube structure frame gross weights, approximately 300 tons of two-tube truss, all circular hollow section diameters of outer keel are 400mm, wall thickness 10mm, local location circular hollow section diameter is 400mm, wall thickness 20mm.
The construction method of described latticed cylinder Steel Shell, concrete steps are as follows:
Step 1, shown in Figure 2, row's pylon 1 is built at the even interval of peripheral position that is centered around front arc to be onstructed, is connected with the bracing frame 2 towards front arc on every pylon, shown in Figure 3, on floor structure or Core Walls Structure 4, connect the tripod 3 towards rear arc.
Step 2, according to the crossover node between oval keel, is divided into multistage arc component by each oval skeleton, adopts 3 lift-on/lift-off systems to lift piecemeal from bottom to top arc component to bracing frame or tripod according to the incline direction of oval skeleton.
Step 3, lifts after two sections of arc components, starts to carry out the connection between arc component.
Step 4, lifts arc component one by one, also connects one by one, completes an oval skeleton and installs.
Step 5, according to step 2 to step 4, eight oval skeleton synchronous constructions, the crossover node between oval skeleton is directly fixedly connected with by the mode of welding, until whole installation in position, connects the supporting construction of oval skeleton and agent structure.
Step 6, utilizes eight the oval skeletons of jack pair that are connected on each bracing frame and tripod to carry out overall absolute altitude control and regulation.
Step 7, removes pylon and tripod, and the load of eight oval skeletons itself is passed to the supporting construction between oval skeleton and agent structure, completes latticed cylinder Steel Shell construction.
Bottom support bracket is to be connected in advance on annex, oval skeleton is installed afterwards and bottom support bracket is welded and fixed, excessive in order to prevent that oval skeleton from sinking, before removing pylon and tripod, can first between oval skeleton and annex, be evenly arranged some support jacks, remove temporary supporting pylon and tripod, off-load support jack subsequently, it is moved down, and after oval skeleton separates completely with support jack, oval skeleton installs.
In step 2,3 lift-on/lift-off systems of the arc component of each oval skeleton are as follows for the concrete steps of two-tube truss lifting:
Step 1, shown in Figure 5, on every section of Double-tube arc-shaped member, connect three hangers as suspension centre according to even interval, the position of left, center, right, be labeled as successively No. 4 suspension centres, No. 5 suspension centres and No. 6 suspension centres; According to the incline direction of oval skeleton Piecemeal erection from bottom to top, inside first paragraph Double-tube arc-shaped member, the two ends of chord member key point of each mark is the two ends mark C point, D point of A point, B point, outside chord member, all the other each Double-tube arc-shaped members are only same one end mark C point of A point, outside chord member in chord member one end, inner side key point of mark, the position of Double-tube arc-shaped member below corresponding A point, B point, C point and D point coordinates is all connected with a supporting leg, has crosshair position line in length and breadth on the lower surface of supporting leg; The middle part mark E point of chord member paste prismatic lens outside every section of Double-tube arc-shaped member.
Step 2, is connected No. 4 hoisting wireropes, No. 5 hoisting wireropes with No. 6 respectively corresponding three suspension centres of hoisting wirerope, wherein, be connected with No. 4 jacks and No. 5 jacks on No. 4 hoisting wireropes and No. 5 hoisting wireropes.
Step 3, shown in Figure 6, utilize boom hoisting to start to lift first paragraph Double-tube arc-shaped member, utilize No. 4 jacks and No. 5 jacks to regulate rope capacity, by first paragraph Double-tube arc-shaped lifting component on the bracing frame of adjacent two pylons, the position line of crosshair in length and breadth that ensures two supporting legs of first paragraph Double-tube arc-shaped member aligns with the position line of crosshair in length and breadth that is fixed on the bearing 9 on bracing frame respectively and use that bolt is temporary fixed to be connected, and the locus of this bearing is that the coordinate position of ordering according to A point, B point, C point and D is definite.
Step 4, shown in Figure 7, A point, B point, C point and D point coordinates reach after assigned address, make No. 5 hoisting wireropes automatically-unhooked by automatic decoupling device, between No. 5 suspension centres and one of them pylon, connect and regulate steel wire rope No. 2, regulate for No. 2 one end near pylon on steel wire ropes to be connected with adjusting jack No. 2.
Step 5, utilize the levelness that regulates for No. 2 steel wire rope and No. 2 adjusting jacks to carry out first paragraph Double-tube arc-shaped member to regulate adjusting position, the prismatic lens of ordering taking E in adjustment process is observation benchmark, make E point coordinates reach assigned address, the supporting leg of fastening first paragraph Double-tube arc-shaped member and the bolt of bracing frame bearing, now can remove No. 2 and regulate steel wire rope and No. 2 adjusting jacks, complete being connected and installed of first paragraph Double-tube arc-shaped member.
Step 6, shown in Figure 8, utilize boom hoisting to start to lift second segment Double-tube arc-shaped member, utilize No. 4 jacks and No. 5 jacks to regulate rope capacity, by second segment Double-tube arc-shaped lifting component between first paragraph Double-tube arc-shaped member and the bracing frame of another one pylon, the position line of crosshair in length and breadth that ensures the supporting leg of second segment Double-tube arc-shaped member aligns with the position line of crosshair in length and breadth that is fixed on the bearing on tripod and uses that bolt is temporary fixed to be connected, and the locus of this bearing is definite according to the coordinate position of a bit.
Step 7, one point coordinates reaches after assigned address, make No. 5 steel wire ropes automatically-unhooked by automatic decoupling device, between No. 5 suspension centres and one of them floor structure or Core Walls Structure, connect and regulate steel wire rope No. 2, regulate on steel wire ropes for No. 2 and be connected with adjusting jack No. 2 near one end of floor structure or Core Walls Structure.
Step 8, utilize the levelness that regulates for No. 2 steel wire rope and No. 2 adjusting jacks to carry out second segment Double-tube arc-shaped member to regulate adjusting position, the prismatic lens of ordering taking E in adjustment process is observation benchmark, make E point coordinates reach assigned address, the bolt of the supporting leg of fastening second segment Double-tube arc-shaped member and the bearing of bracing frame, and the connected node of second segment Double-tube arc-shaped member and first paragraph Double-tube arc-shaped member is welded and fixed, now can remove No. 2 and regulate steel wire rope and No. 2 adjusting jacks, complete being connected and installed of second segment Double-tube arc-shaped member.
Step 9, shown in Fig. 9, Figure 10, repeating step six is to step 8, by all the other each section of Double-tube arc-shaped member installation in position.
In the step 4 and step 7 of two-tube truss lifting, No. 2 regulate steel wire rope is 60 °～90 ° with the angle on ground before adjusting.
In step 2,3 lift-on/lift-off systems of the arc component of each oval skeleton are as follows for the concrete steps of single tube structure frame lifting:
Step 1 shown in Figure 11, Figure 12, connects three hangers as suspension centre according to even interval, the position of left, center, right on every section of single tube arc component, is labeled as successively No. 1 suspension centre, No. 2 suspension centres and No. 3 suspension centres; According to the incline direction of oval skeleton Piecemeal erection from bottom to top, except key point of the each mark in two ends of first paragraph single tube arc component for a bit, 2, only at one end key point of mark is for a bit for all the other each single tube arc components, and there is a crosshair position line in length and breadth the position of single tube arc component lower surface corresponding any and two point coordinates; The middle part in every section of single tube arc component outside is labeled as 3 points and pastes prismatic lens.
Step 2, is connected No. 1 hoisting wirerope, No. 2 hoisting wireropes with No. 3 respectively corresponding three suspension centres of hoisting wirerope, wherein, be connected with respectively No. 1 jack and No. 2 jacks on No. 1 hoisting wirerope and No. 2 hoisting wireropes.
Step 3, shown in Figure 13, Figure 14, utilize boom hoisting to start to lift first paragraph single tube arc component, utilize No. 1 jack and No. 2 jacks to regulate rope capacity, first paragraph single tube arc component is lifted to the tripod of adjacent two floor structures or Core Walls Structure, the position line of crosshair in length and breadth that ensures the two ends of first paragraph single tube arc component aligns with the position line of crosshair in length and breadth on the support 10 being fixed on tripod respectively, the locus of this support be according to a bit, the coordinate position of 2 determines.
Step 4, shown in Figure 15, a bit, two point coordinates reach after assigned address, make No. 2 hoisting wireropes automatically-unhooked by automatic decoupling device, between No. 2 suspension centres and one of them floor structure or Core Walls Structure, connect and regulate steel wire rope No. 1, regulate on steel wire rope for No. 1 and be connected with adjusting jack No. 1 near one end of floor structure or Core Walls Structure.
Step 5, utilize the levelness that regulates for No. 1 steel wire rope and No. 1 adjusting jack to carry out first paragraph single tube arc component to regulate adjusting position, in adjustment process taking the prismatic lens of 3 as observation benchmark, make three point coordinates reach assigned address, now, can remove No. 1 and regulate steel wire rope and No. 1 adjusting jack, complete being connected and installed of first paragraph single tube arc component.
Step 6, shown in Figure 16, utilize boom hoisting to start to lift second segment single tube arc component, utilize No. 1 jack and No. 2 jacks to regulate rope capacity, second segment single tube arc component is lifted between first paragraph single tube arc component and the tripod of another one floor structure or Core Walls Structure, the position line of crosshair in length and breadth that ensures second segment single tube arc component aligns with the position line of crosshair in length and breadth that is fixed on the support on tripod, and the locus of this support is to determine according to the coordinate position of a bit.
Step 7, one point coordinates reaches after assigned address, make No. 2 steel wire ropes automatically-unhooked by automatic decoupling device, between No. 2 suspension centres and one of them floor structure or Core Walls Structure, connect and regulate steel wire rope No. 1, regulate on steel wire rope for No. 1 and be connected with adjusting jack No. 1 near one end of floor structure or Core Walls Structure.
Step 8, utilize the levelness that regulates for No. 1 steel wire rope and No. 1 adjusting jack to carry out second segment single tube arc component to regulate adjusting position, in adjustment process taking the prismatic lens of 3 as observation benchmark, make three point coordinates reach assigned address, and the connected node of second segment single tube arc component and first paragraph single tube arc component is welded and fixed, now can remove No. 1 and regulate steel wire rope and No. 1 adjusting jack, complete being connected and installed of second segment single tube arc component.
Step 9, shown in Figure 17, Figure 18, repeating step six is to step 8, by all the other each section of single tube arc component installation in position.
In the step 4 and step 7 of the lifting of single tube structure frame, No. 1 regulates steel wire rope is 60 °～90 ° with the angle on ground before adjusting.
Shown in Fig. 4, Figure 10, described pylon 1 is made up of four root posts and the connecting rod that is connected between column, connects twice linking beam between pylon; There is bracing frame the side of pylon to the front arc level connection joint of net shell; Support frame as described above 2 comprises the horizontal support bar that is connected with pylon two root posts, is connected to the diagonal brace between horizontal support bar and column and is connected to the connecting rod between horizontal support bar; On every horizontal support bar, be fixed with two bearings 9; Described bearing 9 comprises the under(-)chassis being connected with bracing frame and is connected to the connecting plate for connecting with two-tube truss on under(-)chassis, on described connecting plate, there is the position line of crosshair in length and breadth of location use, between connecting plate and under(-)chassis, be connected with jack 8, for regulate the absolute altitude position of oval skeleton in installation process.
Shown in Figure 14, Figure 18, described tripod comprise the horizon bar being connected with floor structure or Core Walls Structure and be connected to horizon bar and floor structure or Core Walls Structure between diagonal brace, on described horizon bar, be fixed with a support 10, this support 10 comprises the limiting plate that two parallel spacing single tube structure framves are used and is connected to the location-plate between limiting plate bottom, has crosshair position line in length and breadth on described location-plate. For convenient construction personnel operation, can also between tripod, connect scaffold.
Comprise outer keel change in location monitoring when controlling laying, the outer keel netted installs and measures and unload, concrete grammar is as follows:
In, control net and be divided into horizontal control network and vertical control network, wherein horizontal control network is on the basis of existing construction control network, according to Steel Structural Design feature and construction characteristic, lay the special control net of Construction of Steel Structure, for steel structure assembling, install and use, as the foundation of control point coordinate of measuring axis, panel point, truss end, simultaneously for steel construction deformation monitoring; In addition, vertical control network is to adopt spirit level to come and go to measure, from outside vertical control point pilot measurement relief, to the concrete walls of four Core Walls Structures in assembled place, pilot measurement is ± 0.000m that pilot measurement is+1.000m to the absolute altitude on two other Core Walls Structure to the absolute altitude on two Core Walls Structures wherein. Multiple coordinate control points are laid in ground on the scene, for the check of place building, adopt red triangle to represent and indicate data, then adopting total powerstation to carry out repetition measurement to relief. As the foundation of level measurement in outer keel installation process.
Utilize horizontal control network and vertical control network to carry out precision control, its construction error sees table:
Comprise that oval skeleton is installed and the installation of umbrella shaped support:
When oval skeleton is installed, select suitable observation platform that can intervisibility according to bracing frame or tripod position, suitable control point, adopt the method for resection, according to make top support structure steel plate cross centre line to coordinate position, be labeled on top support structure steel plate, when installation, top support structure steel plate and bearing or support cross centre line coincide; Finally, because oval skeleton length is very long, in self gravitation situation, mid portion can sink, zone of influence lattice structure is installed, therefore before each joint outer keel lifting, paste a prismatic lens in centre position, adopt " bipolar coordinate method " to measure its installation on ground coordinate, and adopt " space coordinate conversion system " software by each prismatic lens installation on ground coordinate inverse to spatial design coordinate, in oval skeleton hoisting process, only need to monitor like this prismatic lens three-dimensional coordinate and can complete location. Lifting is measured and is adopted several 2 seconds level total powerstations to be placed in ground control point, by the three-dimensional coordinate of " bipolar coordinate method " simultaneous observation prismatic lens. Due to the each point three-dimensional coordinate that prestores in total powerstation, utilize setting out that total powerstation provides to realize real-time commander workmen and adjust oval skeleton locus, complete preferably outer keel location work has been installed.
When the installation of umbrella shaped support, on floor structure or Core Walls Structure, emit the point of umbrella shaped support and agent structure connecting part, in computer, input in advance the coordinate of umbrella shaped support and oval skeleton joining, a prismatic lens is pasted at intersection point place, according to coordinate points, umbrella shaped support is installed, in installation process, is adopted equally " bipolar coordinate method " to monitor the variation of this intersection point.
Near oval frame position variation monitoring when unloading: weld a steel ruler before unloading bottom support bracket, record the position readings of the front oval skeleton of unloading, and between oval skeleton and annex, be evenly arranged some support jacks, supporting ellipse shape skeleton, then remove temporary supporting pylon and tripod, last off-load support jack, observation steel ruler reading, if find that oval skeleton cannot separate with support jack always, illustrate its sedimentation excessive be not suitable for continue unloading, now should again support jack be gone back to origin-location, observe installation and the fixation case of oval skeleton, until while synchronously lowering support jack, while sinking in design allowed band, remove subsequently support jack under oval skeleton, now, oval skeleton installs.
Claims (8)
1. the construction method of a latticed cylinder Steel Shell, it is characterized in that, this latticed cylinder Steel Shell is socketed by eight mutual diagonal cross of oval skeleton, be connected with the agent structure in net shell by supporting construction (7), the cross section of this latticed cylinder Steel Shell is circular, and be divided into front arc and rear arc, each oval skeleton is the closing structure being made up of two-tube truss (5) and single tube structure frame (6), the two-tube truss of eight oval skeletons is positioned at front arc, single tube structure chord position is in rear arc, agent structure in this latticed cylinder Steel Shell comprises Reinforced Concrete Core Walls Structure and steel frame floor structure, concrete steps are as follows:
Step 1, row's pylon (1) is built at the even interval of peripheral position that is centered around front arc to be onstructed, is connected with the bracing frame (2) towards front arc on every pylon, at floor structure or the upper tripod (3) connecting towards rear arc of Core Walls Structure (4);
Step 2, is divided into multistage arc component by each oval skeleton, adopts 3 lift-on/lift-off systems to lift piecemeal from bottom to top arc component to bracing frame or tripod according to the incline direction of oval skeleton;
Step 3, lifts after two sections of arc components, starts to carry out the connection between arc component;
Step 4, lifts arc component one by one, also connects one by one, completes each oval skeleton and installs;
Step 5, according to step 2, to step 4, eight oval skeleton synchronous constructions, until whole installation in position, connect the supporting construction of oval skeleton and agent structure;
Step 6, utilizes eight the oval skeletons of jack pair that are connected on each bracing frame to carry out overall absolute altitude control and regulation;
Step 7, removes pylon and tripod, and the load of eight oval skeletons itself is passed to the supporting construction between oval skeleton and agent structure, completes latticed cylinder Steel Shell construction;
In described step 2,3 lift-on/lift-off systems of the arc component of each oval skeleton are as follows for the concrete steps of single tube structure frame lifting:
Step 1 connects three hangers as suspension centre according to even interval, the position of left, center, right on every section of single tube arc component, is labeled as successively No. 1 suspension centre, No. 2 suspension centres and No. 3 suspension centres; According to the incline direction of oval skeleton Piecemeal erection from bottom to top, except key point of the each mark in two ends of first paragraph single tube arc component for a bit, 2, only at one end key point of mark is for a bit for all the other each single tube arc components, and there is a crosshair position line in length and breadth the position of single tube arc component lower surface corresponding any and two point coordinates; The middle part in every section of single tube arc component outside is labeled as 3 points and pastes prismatic lens;
Step 2, is connected No. 1 hoisting wirerope, No. 2 hoisting wireropes with No. 3 respectively corresponding three suspension centres of hoisting wirerope, wherein, be connected with respectively No. 1 jack and No. 2 jacks on No. 1 hoisting wirerope and No. 2 hoisting wireropes;
Step 3, utilize boom hoisting to start to lift first paragraph single tube arc component, utilize No. 1 jack and No. 2 jacks to regulate rope capacity, first paragraph single tube arc component is lifted to the tripod of adjacent two floor structures or Core Walls Structure, the position line of crosshair in length and breadth that ensures the two ends of first paragraph single tube arc component align with the position line of crosshair in length and breadth on the support (10) being fixed on tripod respectively, the locus of this support be according to a bit, the coordinate position of 2 is definite;
Step 4, a bit, two point coordinates reach after assigned address, No. 2 hoisting wirerope is automatically-unhooked, connects No. 1 and regulate steel wire rope between No. 2 suspension centres and one of them floor structure or Core Walls Structure, regulates on steel wire rope for No. 1 and is connected with adjusting jack No. 1 near one end of floor structure or Core Walls Structure;
Step 5, utilize the levelness that regulates for No. 1 steel wire rope and No. 1 adjusting jack to carry out first paragraph single tube arc component to regulate adjusting position, in adjustment process, taking the prismatic lens of 3 as observation benchmark, make three point coordinates reach assigned address, complete being connected and installed of first paragraph single tube arc component;
Step 6, utilize boom hoisting to start to lift second segment single tube arc component, utilize No. 1 jack and No. 2 jacks to regulate rope capacity, second segment single tube arc component is lifted between first paragraph single tube arc component and the tripod of another one floor structure or Core Walls Structure, the position line of crosshair in length and breadth that ensures second segment single tube arc component aligns with the position line of crosshair in length and breadth that is fixed on the support on tripod, and the locus of this support is to determine according to the coordinate position of a bit;
Step 7, one point coordinates reaches after assigned address, No. 2 steel wire rope is automatically-unhooked, connects No. 1 and regulate steel wire rope between No. 2 suspension centres and one of them floor structure or Core Walls Structure, regulates on steel wire rope for No. 1 and is connected with adjusting jack No. 1 near one end of floor structure or Core Walls Structure;
Step 8, utilize the levelness that regulates for No. 1 steel wire rope and No. 1 adjusting jack to carry out second segment single tube arc component to regulate adjusting position, in adjustment process taking the prismatic lens of 3 as observation benchmark, make three point coordinates reach assigned address, and the connected node of second segment single tube arc component and first paragraph single tube arc component is welded and fixed, complete being connected and installed of second segment single tube arc component;
Step 9, repeating step six is to step 8, by all the other each section of single tube arc component installation in position;
In described step 2,3 lift-on/lift-off systems of the arc component of each oval skeleton are as follows for the concrete steps of two-tube truss lifting:
Step 1 connects three hangers as suspension centre according to even interval, the position of left, center, right on every section of Double-tube arc-shaped member, is labeled as successively No. 4 suspension centres, No. 5 suspension centres and No. 6 suspension centres; According to the incline direction of oval skeleton Piecemeal erection from bottom to top, inside first paragraph Double-tube arc-shaped member, the two ends of chord member key point of each mark is the two ends mark C point, D point of A point, B point, outside chord member, all the other each Double-tube arc-shaped members are only same one end mark C point of A point, outside chord member in chord member one end, inner side key point of mark, the position of Double-tube arc-shaped member below corresponding A point, B point, C point and D point coordinates is all connected with a supporting leg, has crosshair position line in length and breadth on the lower surface of supporting leg; The middle part mark E point of chord member paste prismatic lens outside every section of Double-tube arc-shaped member;
Step 2, is connected No. 4 hoisting wireropes, No. 5 hoisting wireropes with No. 6 respectively corresponding three suspension centres of hoisting wirerope, wherein, be connected with No. 4 jacks and No. 5 jacks on No. 4 hoisting wireropes and No. 5 hoisting wireropes;
Step 3, utilize boom hoisting to start to lift first paragraph Double-tube arc-shaped member, utilize No. 4 jacks and No. 5 jacks to regulate rope capacity, by first paragraph Double-tube arc-shaped lifting component on the bracing frame of adjacent two pylons, the position line of crosshair in length and breadth that ensures two supporting legs of first paragraph Double-tube arc-shaped member align with the position line of crosshair in length and breadth that is fixed on the bearing (9) on bracing frame respectively and uses that bolt is temporary fixed to be connected, and the locus of this bearing is that the coordinate position of ordering according to A point, B point, C point and D is definite;
Step 4, A point, B point, C point and D point coordinates reach after assigned address, and No. 5 hoisting wirerope is automatically-unhooked, connects No. 2 and regulate steel wire rope between No. 5 suspension centres and one of them pylon, regulates for No. 2 one end near pylon on steel wire ropes to be connected with adjusting jack No. 2;
Step 5, utilize the levelness that regulates for No. 2 steel wire rope and No. 2 adjusting jacks to carry out first paragraph Double-tube arc-shaped member to regulate adjusting position, the prismatic lens of ordering taking E in adjustment process is observation benchmark, make E point coordinates reach assigned address, the supporting leg of fastening first paragraph Double-tube arc-shaped member and the bolt of bracing frame bearing, complete being connected and installed of first paragraph Double-tube arc-shaped member;
Step 6, utilize boom hoisting to start to lift second segment Double-tube arc-shaped member, utilize No. 4 jacks and No. 5 jacks to regulate rope capacity, by second segment Double-tube arc-shaped lifting component between first paragraph Double-tube arc-shaped member and the bracing frame of another one pylon, the position line of crosshair in length and breadth that ensures the supporting leg of second segment Double-tube arc-shaped member aligns with the position line of crosshair in length and breadth that is fixed on the bearing on tripod and uses that bolt is temporary fixed to be connected, and the locus of this bearing is definite according to the coordinate position of a bit;
Step 7, one point coordinates reaches after assigned address, No. 5 steel wire rope is automatically-unhooked, connects No. 2 and regulate steel wire rope between No. 5 suspension centres and one of them floor structure or Core Walls Structure, regulates on steel wire ropes for No. 2 and is connected with adjusting jack No. 2 near one end of floor structure or Core Walls Structure;
Step 8, utilize the levelness that regulates for No. 2 steel wire rope and No. 2 adjusting jacks to carry out second segment Double-tube arc-shaped member to regulate adjusting position, the prismatic lens of ordering taking E in adjustment process is observation benchmark, make E point coordinates reach assigned address, the bolt of the supporting leg of fastening second segment Double-tube arc-shaped member and the bearing of bracing frame, and the connected node of second segment Double-tube arc-shaped member and first paragraph Double-tube arc-shaped member is welded and fixed, complete being connected and installed of second segment Double-tube arc-shaped member;
Step 9, repeating step six is to step 8, by all the other each section of Double-tube arc-shaped member installation in position.
2. the construction method of latticed cylinder Steel Shell according to claim 1, is characterized in that: in the step 4 and step 7 of the lifting of single tube structure frame, No. 1 regulates steel wire rope is 60 °～90 ° with the angle on ground before adjusting.
3. the construction method of latticed cylinder Steel Shell according to claim 2, is characterized in that: in the step 4 and step 7 of two-tube truss lifting, No. 2 regulate steel wire rope is 60 °～90 ° with the angle on ground before adjusting.
4. according to the construction method of the latticed cylinder Steel Shell described in claims 1 to 3 any one, it is characterized in that: described pylon (1) is made up of four root posts and the connecting rod that is connected between column, connects twice linking beam between pylon; There is bracing frame the side of pylon to the front arc level connection joint of net shell.
5. the construction method of latticed cylinder Steel Shell according to claim 4, is characterized in that: support frame as described above (2) comprises the horizontal support bar that is connected with pylon two root posts, is connected to the diagonal brace between horizontal support bar and column and is connected to the connecting rod between horizontal support bar; On every horizontal support bar, be fixed with two bearings (9).
6. the construction method of latticed cylinder Steel Shell according to claim 5, it is characterized in that: described bearing (9) comprises the under(-)chassis being connected with bracing frame and is connected to the connecting plate for connecting with two-tube truss on under(-)chassis, the position line of crosshair in length and breadth that has location use on described connecting plate, is connected with jack (8) between connecting plate and under(-)chassis.
7. the construction method of latticed cylinder Steel Shell according to claim 4, it is characterized in that: described tripod (3) comprise the horizon bar being connected with floor structure or Core Walls Structure and be connected to horizon bar and floor structure or Core Walls Structure between diagonal brace, on described horizon bar, be fixed with a support (10), this support (10) comprises the limiting plate that two parallel spacing single tube structure framves are used and is connected to the location-plate between limiting plate bottom, has crosshair position line in length and breadth on described location-plate.
8. according to the construction method of the latticed cylinder Steel Shell described in claim 1 or 2 or 3 or 5 or 6, it is characterized in that: described tripod (3) comprise the horizon bar being connected with floor structure or Core Walls Structure and be connected to horizon bar and floor structure or Core Walls Structure between diagonal brace, on described horizon bar, be fixed with a support (10), this support (10) comprises the limiting plate that two parallel spacing single tube structure framves are used and is connected to the location-plate between limiting plate bottom, has crosshair position line in length and breadth on described location-plate.
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| CN107190990A (en) * | 2017-06-02 | 2017-09-22 | 北京首钢建设集团有限公司 | Factory building steel column installation method under a kind of confined space |
| CN112663792B (en) * | 2020-12-07 | 2022-05-20 | 上海市机械施工集团有限公司 | Construction method of large-scale overhanging multi-surface folded plate diamond body reticulated shell steel structure |
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| CN102953556B (en) * | 2012-11-14 | 2016-05-18 | 中冶天工集团有限公司 | Hoisting method of large-span asymmetric rectangular space twisted pipe truss |
| CN103276907B (en) * | 2013-05-21 | 2015-06-10 | 中国华冶科工集团有限公司 | Hoisting method for large-span hinged type herringbone steel arch |
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