CN104060839B - Be exclusively used in large stadium metal curtain wall steel construction vertical keel construction control method - Google Patents

Be exclusively used in large stadium metal curtain wall steel construction vertical keel construction control method Download PDF

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CN104060839B
CN104060839B CN201410275116.6A CN201410275116A CN104060839B CN 104060839 B CN104060839 B CN 104060839B CN 201410275116 A CN201410275116 A CN 201410275116A CN 104060839 B CN104060839 B CN 104060839B
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keel
line
hoop
axis
metallic plate
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CN104060839A (en
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文常娟
蒋松甫
马鹏
李恩亭
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China MCC5 Group Corp Ltd
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China MCC5 Group Corp Ltd
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Abstract

The invention discloses one and be exclusively used in large stadium metal curtain wall steel construction vertical keel construction control method, comprise the following steps: measurement and positioning method comprises definite method of vertical keel normal direction axis and the localization method of vertical keel, according to Discussion on architecture control point at the floor control point of the some quantity of each floor random arrangement and measure coordinate figure; After the normal direction axis of keel is determined, calculate the theoretical of infrared ray scanner decorating position to keel inner edge: L1=L-L0; Provide reference entry to axis and absolute altitude control line with reference to projection laser beam, keel absolute altitude control line is overlapped with the projection with heights line of scanner, positioning tool is fixed on main body concrete floor, makes theory method that center line on keel and scanner provide to dead in line; By positioning tool adjustment keel horizontal coordinate, positioning tool is 0 to 200mm at longitudinal fine adjustment range, is 0 to 30mm at the fine adjustment range of hoop. Utilize construction control method accurately steel joist to be positioned, on the time, greatly shorten.

Description

Be exclusively used in large stadium metal curtain wall steel construction vertical keel construction control method
Technical field
The present invention relates to construction installing area, particularly, relate to one and be exclusively used in large stadium metal curtain wall steel construction vertical keel construction control method.
Background technology
Glass curtain wall and steel structure vertical keel is positioned at agent structure periphery, is connected and fixed by connector and agent structure ring beam or floor. Because venue curtain wall area is large, so keel are densely distributed, amount to 184 lines, single line is about 52 meters, heavily approximately 3.5 tons most, the shortest approximately 13 meters, heavily approximately 1 ton. Therefore,, the in the situation that of upper air installing operation, the steel construction vertical keel of large weight, long size is difficult to control installation accuracy by moved by hand.
Make steel construction vertical keel installation accuracy reach designing requirement, must before keel and agent structure are connected and fixed, guarantee that keel adjust to the right place. But, because steel joist deadweight is very large, size is long, adopt chain block to lift, handling is large to steel joist position deviation after mounting points, can not directly be connected with agent structure, need by axis and the absolute altitude position of artificial adjustment steel joist, but in work high above the ground situation, personnel cannot guarantee that operation accurately puts in place, cannot ensure the installation accuracy of steel joist. Traditional measurement is the internal that agent structure is first set by the origin of coordinates, then by internal, control point is guided on every layer of platform, calculated two points on every curtain wall axis, last snap the line connects 2 points on axis, just can determine corresponding axis. But this method need to calculate a lot of in industry data, the control point status requirement of floor is also very high, while drawing some, retrained by building structure particularity, part point position can not directly be drawn, and turns station often. Reduce precision because repeatedly turning station, and single-point setting-out operating efficiency is very low. First traditional mounting means uses chain block that steel joist is carried out after coarse localization, position by moved by hand steel joist again, operate so not only upper cost of time many, and accuracy is not high, the in the situation that of upper air installing, by the steel joist of the large weight of moved by hand control, long size, be difficult to guarantee that steel joist is accurately in place.
Summary of the invention
Technical problem to be solved by this invention is to provide one and can accurately vertical steel keel be positioned, and on the time, greatly shorten be exclusively used in large stadium metal curtain wall steel construction vertical keel construction control method.
The present invention addresses the above problem adopted technical scheme: in order to adjust more accurately and efficiently the position of steel joist, be exclusively used in large stadium metal curtain wall steel construction vertical keel construction control method, comprise the following steps:
(1) measurement and positioning method comprises definite method of vertical keel normal direction axis and the localization method of vertical keel:
(a) definite method of vertical keel normal direction axis: first according to Discussion on architecture control point at the floor control point of the some quantity of each floor random arrangement and measure coordinate figure, in the control point of floor plates, select the control point that sighting condition is good to lay connecting traverse net in floor plates, measure each point coordinate figure, adjustment, the coordinate figure of distributed points is imported in CAD figure, connect adjacent 2 points, distribution control point line is crossing with theoretical axis, intersection point is P1, P2, Pn, M1, M2, Mn, the coordinate figure of intersection point schemes to calculate by CAD, use the span function of drawing, obtain the vector correlation between intersection point and control axis, with drawing span data snap the line connection distribution control point at the scene, find on line line and the intersection point of controlling connecting shaft line, on connection axis, 2 are setting-out axis, provide lower step installation data according to intersecting point coordinate value again, a lot of work on the spot amounts are reduced in this way, if such as one group of axis directly setting-out may need that more than ten points of setting-out have may be more, one group of axis of unwrapping wire may only need to be measured four point coordinates like this, and measurement point coordinate will be hurry up than layout point, and to relatively low (the few turning point raising measurement of the status requirement setting up, unwrapping wire precision). the procurement process of the coordinate figure of intersection point, is to utilize CAD software itself to have numerical value Presentation Function, and the numerical value obtaining is very accurate, utilizes the span function in CAD to obtain the vector correlation between intersection point and control axis simultaneously. adopt CAD software to be used in conjunction with, reduce various mathematical computations, directly perceived, be convenient to understand, utilize existing software, make the acquisition of value more accurate.
(b) after the normal direction axis of keel is determined, the designed elevation of infrared laser scanner is locked as to the above 0.5m of floor absolute altitude; Calculate the plan range L of keel inside edge, above 0.5 meter of of floor absolute altitude normal direction axis to origin of coordinates O1 or origin of coordinates O2 by interior industry; The intersection point P1 coordinate figure (setting up the position of infrared laser scanner) of control point line and normal direction axis outside above 0.5 meter of of calculating floor absolute altitude, and calculate the plan range L0 of P1 to origin of coordinates O1 or origin of coordinates O2; Calculate the theoretical of infrared laser scanner decorating position to keel inner edge: L1=L-L0; On finished product keel labelling method to axis centre line, the above 0.5m of floor as absolute altitude control line; Intersection point P1 at control point, outside line and normal direction axis sets up infrared laser scanner, adjusts the height of scanner apart from 0.5 meter, floor, and rotation makes vertical laser red line overlap with ground axial, and horizontal laser light red line overlaps with absolute altitude control line; Mobile finished product keel make keel mark line overlap with the red line of infrared laser scanner, and normal direction axis overlaps with horizontal absolute altitude control line, radial translation keel, and making finished product keel level absolute altitude control line and normal direction crossing point of axes and P1 point distance is L1; Upstairs, install downstairs, when two ends meet the demands and located simultaneously simultaneously;
(2) installation method of keel: the absolute altitude position that utilizes chain block adjustment keel, and inside keel mark keel center line and theoretical absolute altitude control line, with infrared laser scanner provide reference entry to axis and absolute altitude control line with reference to projection laser beam, by regulating chain block, keel absolute altitude control line is overlapped with the projection with heights line of infrared laser scanner, arrange respectively after a set of positioning tool at the two ends of vertical keel, positioning tool is fixed on main body concrete floor, adjustable ring is to adjusting bolt, make theory method that center line on keel and infrared laser scanner provide to dead in line, regulate ordinate adjusting screw(rod), making infrared laser scanner is to measure the theoretical value L1 that interior industry is calculated to the spacing of keel inner side, by positioning tool adjustment keel horizontal coordinate, i.e. longitudinal and hoop position, positioning tool is 0 to 200mm at longitudinal fine adjustment range, be 0 to 30mm at the fine adjustment range of hoop, make within the alignment error of vertical keel is controlled at the scope that design allows.
Because venue curtain wall area is large, so keel are densely distributed, amount to 184 lines, single line is about 52 meters, heavily approximately 3.5 tons most, the shortest approximately 13 meters, heavily approximately 1 ton. therefore,, the in the situation that of upper air installing operation, the steel construction vertical keel of large weight, long size is difficult to control installation accuracy by moved by hand. make steel construction vertical keel installation accuracy reach designing requirement, must before keel and agent structure are connected and fixed, guarantee that keel adjust to the right place. this just has higher requirement to precision and the efficiency of measuring unwrapping wire. on the other hand, because steel joist deadweight is very large, size is long, adopt chain block to lift, handling is large to steel joist position deviation after mounting points, can not directly be connected with agent structure, need by axis and the absolute altitude position of artificial adjustment steel joist, but in work high above the ground situation, personnel cannot guarantee that operation accurately puts in place, cannot ensure the installation accuracy of steel joist. so before steel joist and agent structure are connected and fixed, the theoretical installation site that must first accurately orient steel joist, then makes the axis of steel joist overlap with normal and meet absolute altitude requirement, finally carry out being again connected and fixed of steel joist. therefore, it is main that the technical program adopts machinery, the mode of artificial compounding practice is controlled vertical steel keel installation, arrange respectively after a set of positioning tool at the two ends of vertical keel, positioning tool is fixed on main body concrete floor, the center line of positioning tool is consistent with the normal of vertical keel, use tower crane or truck crane that member is hung behind predetermined installation site, by surface level-meter control installed height mark and axis, and use chain block adjusting elevation, by positioning tool adjustment keel horizontal coordinate, i.e. longitudinal and hoop position, positioning tool is 200mm at longitudinal fine adjustment range, be 30mm at the fine adjustment range of hoop, make within the alignment error of vertical keel is controlled at the scope that design allows, make its installation accuracy high, installation effectiveness improves greatly, reduce operating personnel's labour intensity.
Described positioning tool comprises that hoop regulates metallic plate, regulate the screw mandrel that is connected of metallic plate and be linked in the adjusting bearing on screw mandrel outer wall with hoop, hoop regulates the two ends of metallic plate to carry out vertical curve towards same direction, screw mandrel is vertically fixed on the center of hoop adjusting metallic plate, and screw mandrel and hoop regulate metallic plate junction to be positioned at the region exterior that hoop regulates metallic plate to be bent to form, hoop regulates the intra-zone of metallic plate bending to be provided with two hoop adjusting devices, one end of hoop adjusting device is arranged on hoop adjusting metallic plate outside after the curved end through hoop adjusting metallic plate simultaneously, in the openend that regulates metallic plate bending to form afterwards at hoop, be provided with clamping screw, the two ends of clamping screw regulate the curved end closed-loop of metallic plate to regulating the openend forming after metallic plate bending through hoop respectively. on described screw mandrel outer wall, be sheathed with holder, holder is arranged on hoop and regulates metallic plate and regulate between bearing, on the sidewall of holder, be provided with connecting plate, the two ends of connecting plate are fixed with the sidewall of holder and the sidewall of adjusting bearing respectively, the bottom of holder is fixed with base plate, on base plate, be provided with two fastening bolts, the bottom of fastening bolt is through base plate, screw mandrel is arranged between fastening bolt, base plate is connected with two clamps, clamp one end is arranged on base plate top, the other end is arranged on the below of base plate, two fastening bolts are all arranged between two clamps, described hoop adjusting device comprises threaded post and rotating handle, one of them termination of the outer wall of rotating handle and threaded post is fixed, and the axis of rotating handle is vertical with the axis of threaded post, the center of rotating handle is arranged on the extended line of center line of threaded post, rotating handle is arranged on the region exterior that hoop regulates metallic plate to be bent to form, and threaded post regulates metallic plate to be arranged on the intra-zone that hoop regulates metallic plate to be bent to form away from one end of rotating handle through hoop. the positioning tool designing for the installation site of fine adjustment keel, positioning tool needs correspondence to be arranged on concrete floor and vertical steel keel to carry out work, parts in positioning tool are all existing parts, independent parts use the effect of the needs that do not reach the technical program, those skilled in the art is also not easy to expect, by the rear structure that obtains this positioning tool of improving of repeatedly installing of operating personnel, draw in conjunction with actual use, this auxiliary mounting tool, strong adaptability, install, easy and simple to handle, installation effectiveness and the installation accuracy of vertical steel keel are greatly improved, after using, keel installation error is all controlled in 10mm, reach good effect.
To sum up, the invention has the beneficial effects as follows: utilize construction control method and supporting auxiliary mounting tool, not only can accurately steel joist be positioned, and greatly shorten on the time, for having in the situation of a large amount of steel joists, work efficiency is very obvious.
Brief description of the drawings
Fig. 1 is the coordinate figure instrumentation plan at floor control point;
Fig. 2 is the scheme of installation of infrared laser scanner;
Fig. 3 is vertical keel plane of orientation schematic diagram;
Fig. 4 is vertical keel location schematic diagram;
Fig. 5 is the side view of positioning tool;
Fig. 6 is the top view of Fig. 5.
Mark and corresponding parts title in accompanying drawing: 1-hoop regulates metallic plate; 2-vertical steel keel; 3-hoop adjusting bolt; 4-concrete floor; 5-clamp; 6-fastening bolt; 7-nut; 8-screw mandrel; 9-adjusting bearing; 10-holder; 11-base plate; 12-connecting plate; 13-clamping screw; 14-total powerstation; 15-floor control point; 16-infrared laser scanner; 17-absolute altitude control line; 18-vertical control line; 19-normal direction axis; Control point, 20-outside line; 21-intersection point P1.
Detailed description of the invention
Below in conjunction with embodiment and accompanying drawing, the present invention is done to detailed description further, but embodiments of the present invention are not limited to this.
Embodiment 1:
As shown in Figure 1, Figure 2, Figure 3, Figure 4, be exclusively used in large stadium metal curtain wall steel construction vertical keel construction control method, comprise the following steps:
(1) measurement and positioning method comprises definite method of vertical keel normal direction axis and the localization method of vertical keel:
(a) definite method of vertical keel normal direction axis: first according to Discussion on architecture control point at the floor control point 15 of the some quantity of each floor random arrangement and utilize total powerstation 14 to measure coordinate figure, in the control point of floor plates, select the control point that sighting condition is good to lay connecting traverse net in floor plates, measure each point coordinate figure, adjustment, the coordinate figure of distributed points is imported in CAD figure, connect adjacent 2 points, distribution control point line is crossing with theoretical axis, intersection point is P1, P2, Pn, M1, M2, Mn, the coordinate figure of intersection point schemes to calculate by CAD, use the span function of drawing, obtain the vector correlation between intersection point and control axis, with drawing span data snap the line connection distribution control point at the scene, find on line line and the intersection point of controlling connecting shaft line, on connection axis, 2 are setting-out axis, provide lower step installation data according to intersecting point coordinate value again,
(b) after the normal direction axis of keel is determined, the designed elevation of infrared laser scanner 16 is locked as to the above 0.5m of floor absolute altitude; Calculate the plan range L of keel inside edge, above 0.5 meter of of floor absolute altitude normal direction axis to origin of coordinates O1 or origin of coordinates O2 by interior industry; The coordinate figure of the intersection point P1 of control point line 20 and normal direction axis 19 outside above 0.5 meter of of calculating floor absolute altitude, and calculate the plan range L0 of P1 to origin of coordinates O1 or origin of coordinates O2; Calculate the theoretical of infrared laser scanner 16 decorating positions to keel inner edge: L1=L-L0; On finished product keel labelling method to axis centre line, the above 0.5m of floor as absolute altitude control line 17; Set up infrared laser scanner 16 at control point, outside line 20 with the intersection point P121 of normal direction axis, adjust the height of infrared laser scanner 16 apart from 0.5 meter, floor, rotation makes vertical laser red line overlap with ground axial, and horizontal laser light red line overlaps with absolute altitude control line; Mobile finished product keel make keel mark line overlap with the red line of infrared laser scanner 16, and normal direction axis overlaps with horizontal absolute altitude control line, radial translation keel, and making finished product keel level absolute altitude control line and normal direction crossing point of axes and P1 point distance is L1; Upstairs, install downstairs simultaneously, when two ends meet the demands and located simultaneously, as shown in Figure 3, the distance that has provided origin of coordinates O1 and vertical keel in vertical keel plane of orientation schematic diagram is L, the distance of origin of coordinates O1 and intersection point P1 is L0, the distance L 1=L-L0 of intersection point P1 and vertical keel.
(2) installation method of keel: the absolute altitude position that utilizes chain block adjustment keel, and inside keel mark keel center line and theoretical absolute altitude control line, keel center line is also referred to as vertical control line 18, vertical control line 18 is vertical with absolute altitude control line, with infrared laser scanner 16 provide reference entry to axis and absolute altitude control line with reference to projection laser beam, by regulating chain block, keel absolute altitude control line is overlapped with the projection with heights line of infrared laser scanner 16, arrange respectively after a set of positioning tool at the two ends of vertical keel, positioning tool is fixed on main body concrete floor, adjustable ring is to adjusting bolt, make theory method that center line on keel and scanner provide to dead in line, regulate ordinate adjusting screw(rod), making infrared laser scanner 16 is to measure the theoretical value L1 that interior industry is calculated to the spacing of keel inner side, by positioning tool adjustment keel horizontal coordinate, i.e. longitudinal and hoop position, positioning tool is 0 to 200mm at longitudinal fine adjustment range, be 0 to 30mm at the fine adjustment range of hoop, make within the alignment error of vertical keel is controlled at the scope that design allows.
Glass curtain wall and steel structure vertical keel is positioned at agent structure periphery, and by connector and agent structure, also beam or floor are connected and fixed. Because venue curtain wall area is large, so keel are densely distributed, amount to 184 lines, single line is about 52 meters, heavily approximately 3.5 tons most, the shortest approximately 13 meters, heavily approximately 1 ton. The in the situation that of upper air installing operation, the steel construction vertical keel of large weight, long size is difficult to control installation accuracy by moved by hand. Traditional construction method is first by chain block, steel joist to be carried out after coarse localization, position by moved by hand steel joist again, operate so not only upper cost of time many, and accuracy is not high, the in the situation that of upper air installing, by the steel joist of the large weight of moved by hand control, long size, be difficult to guarantee that steel joist is accurately in place. The enforcement of the technical program must be controlled the installation accuracy of each line steel joist accurately, within guaranteeing that its error is controlled to the scope of design permission. The installation of steel joist is the mode of taking chain block lifting, and vertical absolute altitude and method line position to steel joist in hoisting process are determined. The equipment that installation process is used mainly contains: tower crane (truck crane), chain block, total powerstation, infrared laser scanner, positioning tool. Positioning tool is for the hoop of fine adjustment keel and radial position. Total powerstation and infrared laser scanner are accurately to measure and adjust vertical position. Wherein tower crane (truck crane), chain block, total powerstation, infrared laser scanner are all existing equipment, use but be not combined in the art, and the setting height(from bottom) of this programme is 11.900 ~ 44.189m. Traditional installation method not only upper cost of time is many, and accuracy is not high, the in the situation that of upper air installing, by the steel joist of the large weight of moved by hand control, long size, be difficult to guarantee that steel joist is accurately in place, make more than error reached 300mm, have a strong impact on the structural stability of metal curtain wall, there is very large potential safety hazard, and utilize this method not only can accurately steel joist to be positioned, and greatly shorten on the time, for having in the situation of a large amount of steel joists, work efficiency is very obvious.
Embodiment 2:
As Fig. 5, shown in Fig. 6, for more accurate, adjust efficiently the position of steel joist, in work progress, design a steel joist positioning tool, described positioning tool comprises that hoop regulates metallic plate 1, regulate the screw mandrel 8 that is connected of metallic plate 1 and be linked in the adjusting bearing 9 on screw mandrel 8 outer walls with hoop, hoop regulates the two ends of metallic plate 1 to carry out vertical curve towards same direction, screw mandrel 8 is vertically fixed on the center of hoop adjusting metallic plate 1, and screw mandrel 8 regulates metallic plate 1 junction to be positioned at the region exterior that hoop regulates metallic plate 1 to be bent to form with hoop, hoop regulates the intra-zone of metallic plate 1 bending to be provided with two hoop adjusting devices 3, one end of hoop adjusting device 3 is arranged on hoop adjusting metallic plate 1 outside after the curved end through hoop adjusting metallic plate 1 simultaneously, in the openend forming, be provided with clamping screw 13 after hoop regulates metallic plate 1 bending, the two ends of clamping screw 13 regulate the curved end closed-loop of metallic plate 1 to regulating the openend forming after metallic plate 1 bending through hoop respectively. it is 8mm that hoop regulates the thickness of metallic plate 1, after the bending of two ends, form a frame-shaped construction, be enclosed within on the outer wall of vertical steel keel 2, utilize many hoop adjusting bolts 3 to pass to seal the openend of frame-shaped construction, wherein an adjustable ring passes vertical steel keel 2 to adjusting bolt 3, carry out adjustment ring to position by turning this adjustable ring to adjusting bolt 3, the adjustment of hoop position is reached in 30mm, reach the construction requirement of large stadium metal curtain wall steel construction vertical keel, with respect to traditional construction method, this positioning tool can make vertical steel keel installation location more accurate, installation effectiveness improves greatly. positioning tool is for the hoop of fine adjustment keel and radial position.
On described screw mandrel 8 outer walls, be sheathed with holder 10, holder 10 is arranged on hoop and regulates metallic plate 1 and regulate between bearing 9, on the sidewall of holder 10, be provided with connecting plate 12, the two ends of connecting plate 12 are fixed with the sidewall of holder 10 and the sidewall of adjusting bearing 9 respectively, the bottom of holder 10 is fixed with base plate 11, on base plate 11, be provided with two fastening bolts 6, the bottom of fastening bolt 6 is through base plate 11, screw mandrel 8 is arranged between fastening bolt 6, base plate 11 is connected with two clamps 5, clamp 5 one end are arranged on base plate 11 tops, the other end is arranged on the below of base plate 11, two fastening bolts 6 are all arranged between two clamps 5. described hoop adjusting device 3 comprises threaded post and rotating handle, one of them termination of the outer wall of rotating handle and threaded post is fixed, and the axis of rotating handle is vertical with the axis of threaded post, the center of rotating handle is arranged on the extended line of center line of threaded post, rotating handle is arranged on the region exterior that hoop regulates metallic plate 1 to be bent to form, and threaded post regulates metallic plate 1 to be arranged on the intra-zone that hoop regulates metallic plate 1 to be bent to form away from one end of rotating handle through hoop. vertical steel keel 2 are arranged between two threaded post, and two threaded post all contact with the symmetrical wall of vertical steel keel 2, the hoop adjusting device 3 that rotating handle and threaded post welding form is firmly rotated vertical steel keel 2 is pushed by the hand-held rotating handle of operating personnel, vertical steel keel 2 are moved towards other direction, thereby finely tune, realize hoop and regulate. utilize fastening bolt 6 that base plate 11 is fixed on concrete floor 4, fastening nut 7 is pressed on base plate 11 on concrete floor 4, block concrete floor 4 and base plate 11 by clamp 5 simultaneously, clamp 5 is to adopt the metallic plate of two ends towards same direction bending, blocking concrete floor 4 and base plate 11 is all arranged in the bending rear region forming of clamp 5, positioning tool can more stably be fixed with concrete floor 4, prevent that positioning tool produces mobile in position fixing process, cause locate failure, cause to install and produce larger error, regulate bearing 9 by adjustment, screw mandrel 8 is produced mobile, and then promotion hoop regulates metallic plate 1, because regulating metallic plate 1, vertical steel keel 2 and hoop be fixed as one, be wrapped in this hoop regulates the vertical steel keel 2 in metallic plate 1 also to move thereupon, realize the adjustment of lengthwise position, lengthwise position is adjusted precision and is reached in 200mm. screw mandrel 8 adopts M30 screw mandrel, and the thickness of clamp 5 is 25mm. by annular and longitudinal comprehensive adjustment, the alignment error of vertical steel keel can reach in 10mm, with respect to traditional installation method, improve widely installation accuracy, this auxiliary mounting tool, strong adaptability, installation, easy and simple to handle, greatly improved installation effectiveness and the installation accuracy of vertical steel keel, after using, keel installation error is all controlled in 10mm, has reached good effect.
This programme is the construction method that coordinates chain block and keel installation positioner fine adjustment keel installation position by infrared laser scanner 16. Having overcome traditional mounting means first uses chain block that steel joist is carried out after coarse localization, position by moved by hand steel joist again, operate so not only upper cost of time many, and accuracy is not high, the in the situation that of upper air installing, by the steel joist of the large weight of moved by hand control, long size, be difficult to the problem of guaranteeing that steel joist is accurately in place. This programme not only can position steel joist and install accurately, and greatly shortens on the time, and for having in the situation of a large amount of steel joists, work efficiency is very obvious.
As mentioned above, can realize preferably the present invention.

Claims (4)

1. be exclusively used in large stadium metal curtain wall steel construction vertical keel construction control method, it is characterized in that, comprise the following steps:
(1) measurement and positioning method comprises definite method of vertical keel normal direction axis and the localization method of vertical keel:
(a) definite method of vertical keel normal direction axis: first according to Discussion on architecture control point at the floor control point of the some quantity of each floor random arrangement and measure coordinate figure, in the control point of floor plates, select the control point that sighting condition is good to lay connecting traverse net in floor plates, measure each point coordinate figure, adjustment, the coordinate figure of distributed points is imported in CAD figure, connect adjacent 2 points, distribution control point line is crossing with theoretical axis, intersection point is P1, P2, Pn, M1, M2, Mn, the coordinate figure of intersection point schemes to calculate by CAD, use the span function of drawing, obtain the vector correlation between intersection point and control axis, with drawing span data snap the line connection distribution control point at the scene, find on line line and the intersection point of controlling connecting shaft line, on connection axis, 2 are setting-out axis, provide lower step installation data according to intersecting point coordinate value again,
(b) after the normal direction axis of keel is determined, the designed elevation of infrared laser scanner is locked as to the above 0.5m of floor absolute altitude; Calculate the plan range L of keel inside edge, above 0.5 meter of of floor absolute altitude normal direction axis to origin of coordinates O1 or origin of coordinates O2 by interior industry; The intersection point P1 coordinate figure of control point line and normal direction axis outside above 0.5 meter of of calculating floor absolute altitude, and calculate the plan range L0 of P1 to origin of coordinates O1 or origin of coordinates O2; Calculate the theoretical of infrared laser scanner decorating position to keel inner edge: L1=L-L0; On finished product keel labelling method to axis centre line, the above 0.5m of floor as absolute altitude control line; Intersection point P1 at control point, outside line and normal direction axis sets up infrared laser scanner, adjusts the height of infrared laser scanner apart from 0.5 meter, floor, and rotation makes vertical laser red line overlap with ground axial, and horizontal laser light red line overlaps with absolute altitude control line; Mobile finished product keel make keel mark line overlap with the red line of infrared laser scanner, and normal direction axis overlaps with horizontal absolute altitude control line, radial translation keel, and making finished product keel level absolute altitude control line and normal direction crossing point of axes and P1 point distance is L1; Upstairs, install downstairs, when two ends meet the demands and located simultaneously simultaneously;
(2) installation method of keel: the absolute altitude position that utilizes chain block adjustment keel, and inside keel mark keel center line and theoretical absolute altitude control line, with infrared laser scanner provide reference entry to axis and absolute altitude control line with reference to projection laser beam, by regulating chain block, keel absolute altitude control line is overlapped with the projection with heights line of infrared laser scanner, arrange respectively after a set of positioning tool at the two ends of vertical keel, positioning tool is fixed on main body concrete floor, adjustable ring is to adjusting bolt, make theory method that center line on keel and scanner provide to dead in line, regulate ordinate adjusting screw(rod), making scanner is to measure the theoretical value L1 that interior industry is calculated to the spacing of keel inner side, by positioning tool adjustment keel horizontal coordinate, i.e. longitudinal and hoop position, positioning tool is 0 to 200mm at longitudinal fine adjustment range, be 0 to 30mm at the fine adjustment range of hoop, make within the alignment error of vertical keel is controlled at the scope that design allows.
2. the large stadium metal curtain wall steel construction vertical keel construction control method that is exclusively used according to claim 1, it is characterized in that, described positioning tool comprises hoop and regulates metallic plate (1), metallic plate (1) screw mandrel (8) being connected and the adjusting bearing (9) being linked on screw mandrel (8) outer wall is regulated with hoop, hoop regulates the two ends of metallic plate (1) to carry out vertical curve towards same direction, screw mandrel (8) is vertically fixed on the center of hoop adjusting metallic plate (1), and screw mandrel (8) regulates metallic plate (1) junction to be positioned at hoop adjusting metallic plate (1) with hoop and bends the rear region exterior forming, hoop regulates the intra-zone that metallic plate (1) is bending to be provided with two hoop adjusting devices (3), one end of hoop adjusting device (3) is arranged on hoop adjusting metallic plate (1) outside after the curved end through hoop adjusting metallic plate (1) simultaneously, clamping screw (13) is provided with in the openend of formation after hoop regulates metallic plate (1) bending, the two ends of clamping screw (13) are each passed through the curved end closed-loop of hoop adjusting metallic plate (1) to the openend that regulates the bending rear formation of metallic plate (1).
3. the large stadium metal curtain wall steel construction vertical keel construction control method that is exclusively used according to claim 2, it is characterized in that, on described screw mandrel (8) outer wall, be sheathed with holder (10), holder (10) is arranged on hoop and regulates metallic plate (1) and regulate between bearing (9), on the sidewall of holder (10), be provided with connecting plate (12), the two ends of connecting plate (12) are fixed with the sidewall of holder (10) and the sidewall of adjusting bearing (9) respectively, the bottom of holder (10) is fixed with base plate (11), on base plate (11), be provided with two fastening bolts (6), the bottom of fastening bolt (6) is through base plate (11), screw mandrel (8) is arranged between fastening bolt (6), base plate (11) is connected with two clamps (5), clamp (5) one end is arranged on base plate (11) top, the other end is arranged on the below of base plate (11), two fastening bolts (6) are all arranged between two clamps (5).
4. the large stadium metal curtain wall steel construction vertical keel construction control method that is exclusively used according to claim 2, it is characterized in that, described hoop adjusting device (3) comprises threaded post and rotating handle, one of them termination of the outer wall of rotating handle and threaded post is fixed, and the axis of rotating handle is vertical with the axis of threaded post, the center of rotating handle is arranged on the extended line of center line of threaded post, rotating handle is arranged on the region exterior that hoop regulates metallic plate (1) to be bent to form, threaded post regulates metallic plate (1) to be arranged on the intra-zone that hoop regulates metallic plate (1) to be bent to form away from one end of rotating handle through hoop.
CN201410275116.6A 2014-06-19 2014-06-19 Be exclusively used in large stadium metal curtain wall steel construction vertical keel construction control method Active CN104060839B (en)

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CN105133840B (en) * 2015-05-28 2017-03-29 南京长岛建设工程有限公司 A kind of construction method of hyperboloid furred ceiling
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CN110158826B (en) * 2019-04-28 2020-09-01 中建八局第二建设有限公司 Construction method of large-span special-shaped steel keel glass curtain wall

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