CN101832049B - Concrete-structured conjoined cylindrical shell construction device and method therefor - Google Patents
Concrete-structured conjoined cylindrical shell construction device and method therefor Download PDFInfo
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- CN101832049B CN101832049B CN200910047532XA CN200910047532A CN101832049B CN 101832049 B CN101832049 B CN 101832049B CN 200910047532X A CN200910047532X A CN 200910047532XA CN 200910047532 A CN200910047532 A CN 200910047532A CN 101832049 B CN101832049 B CN 101832049B
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Abstract
The invention relates to the field of building operations, in particular to a concrete-structured conjoined cylindrical shell construction device and a method therefor. The construction device comprises a pulley (1), a run derrick (2), a reinforced hoop (3), a steel wire rope (4), a chain hoist (5), a handrail (6), a radial spar (7), a platform ring beam (8), a safety net (9), an external hanger frame (10), an inner form spreader (12), a stay bar pivot ring half-way line frame (13), an operation platform (14), an external die plate (15), an internal die plate (16), a rigid axis connector (17), an internal hanger frame (18) and a diameter-adjusting screw (19). The construction method comprises the installation of the run derrick, the operation platform, the external die plate and the internal die plate, the construction of concrete, the normal die construction and connection of silos, which are conducted in sequence. The invention features simple operation, shortened construction period and lowered construction cost.
Description
Technical field
The present invention relates to the container construction applications that fluent solid is used, be specially a kind of concrete-structured conjoined cylindrical shell construction equipment and method.
Background technology
Traditional concrete-structured conjoined cylindrical shell construction, adopt the punching block slab to support reverse mould construction technology, set up the steel pipe scaffold section construction inside and outside needing, its each construction section technological process is: reinforcing bar binding → inner and outer template construction → template is proofreaied and correct (using the steel strand straightening) → concrete casting → concrete curing → form removable.Every construction segment length is 900mm～1500mm, needs repeatedly reverse mould in the construction.After every section concrete had watered, the concrete curing time was longer.The high 1800mm of general design one step scaffold, therefore in work progress, will carry out repeatedly the work of translation frame, and it is big to set up turnover quantity of material such as needed steel pipe scaffold, template, long construction period, its material lease expenses and labour cost are very high, construction cost height, long in time limit.
Summary of the invention
In order to overcome the defective of prior art, a kind of job practices that can shorten installation period, reduce the steel consumption amount is provided, the invention discloses a kind of concrete-structured conjoined cylindrical shell construction equipment and method.
The present invention reaches goal of the invention by following technical solution:
A kind of concrete-structured conjoined cylindrical shell construction equipment, comprise pulley, run derrick, reinforce hoop, wire rope, chain hoist, railing, the radiation beam, the platform ring beam, safety net, outer suspension bracket, the inner formword strut, coil holder in the strut fulcrum ring, operating platform, exterior sheathing, inner formword, rigidity shaft coupling line device, internal hanger and path transfer screw, run derrick by vertical rod, horizon bar and brace are built, vertical rod is perpendicular to ground, horizon bar perpendicular to vertical rod and and vertical rod be fixedly connected, brace connects the intersection point of vertical rod and horizon bar successively, the top that runs derrick is equipped with pulley, the outside is with and reinforces hoop, it is characterized in that: the bottom center place that runs derrick and vertically stand on the disjunctor tube, one end of radiation beam is fixed on to run derrick and goes up and parallel with ground, and with the tie point that runs derrick be the center of circle radially radially level be centered around run derrick around, quantity is 5 to 25, is covered with dull and stereotyped as operating platform on the radiation beam; Radiation beam bottom is lined with the platform ring beam, the platform ring beam is a ring shape, quantity is 2 to 5, radius increases successively, to run derrick is that centres is installed, radiation beam upper edge is equipped with railing, the radiation beam is equipped with wire rope near the outer rim place and is connected with running derrick, be connected with chain hoist on the wire rope, exterior sheathing and inner formword all are that centres is installed to run derrick, it between exterior sheathing and the inner formword concrete barrel, the inner ring of inner formword is installed with the inner formword strut, and the inner formword strut all is positioned at the diameter place of inner formword inner ring, Yi Bian the middle part of inner formword strut is with in the strut fulcrum ring coil holder and is being connected with the path transfer screw, the inner ring diameter place of concrete barrel is connected with rigidity shaft coupling line device, the outer suspension bracket of the outer installation of radiation beam bottom exterior sheathing, outer suspension bracket is covered with safety net, and internal hanger is installed in the inner formword of radiation beam bottom.
Described a kind of concrete-structured conjoined cylindrical shell construction equipment is characterized in that: running derrick is 1200 * 1200 single hole derricks, and chain hoist and the angle that runs derrick are between 30 °～40 °.
A kind of concrete-structured conjoined cylindrical shell construction equipment and method is characterized in that: carry out successively as follows:
A. the installation that runs derrick
After foundation construction is finished, on raft foundation, install and run derrick, built by vertical rod, horizon bar and brace and to run derrick, vertical rod is perpendicular to ground, horizon bar perpendicular to vertical rod and and vertical rod be fixedly connected, brace connects the intersection point of vertical rod and horizon bar successively, pulley is installed at the top that runs derrick, and outer cover is reinforced hoop, the bottom center place that runs derrick and vertically stand on the disjunctor tube, corner cable wind rope and earth anchorage, the plan-position of cable wind rope is consistent with the diagonal that runs derrick; When stack shell is constructed, keep stable for making to run derrick, will run derrick with rihid coupling is connected with the concrete barrel.
B. the installation of operating platform
Run derrick and go up the fixing radiation beam parallel with ground, the radiation beam with the tie point that runs derrick be the center of circle radially radially level be centered around run derrick around, quantity is 5 to 25, radiation beam upper berth flat board is as operating platform; Radiation beam bottom lining platform ring beam, the platform ring beam is a ring shape, quantity is 2 to 5, radius increases successively, to run derrick is that centres is installed, radiation beam upper edge is installed railing, the radiation beam near the outer rim place install wire rope with run derrick be connected, the chain hoist of contacting on the wire rope, outer suspension bracket is installed at place, outer, radiation beam bottom, outer suspension bracket is covered with safety net, internal hanger is installed in the suspension bracket outside the radiation beam bottom, then with chain hoist with operating platform be hung on run derrick on, chain hoist and the angle that runs derrick are between 30 °～40 °;
C. exterior sheathing and inner formword are installed
To run derrick is that centres is installed exterior sheathing and inner formword, it between exterior sheathing and the inner formword concrete barrel to be processed, the inner ring of inner formword is installed with the inner formword strut, the inner formword strut all is positioned at the diameter place of inner formword inner ring, the middle part of inner formword strut is with in the strut fulcrum ring coil holder and is connected with the path transfer screw on one side, the inner ring diameter place of concrete barrel is connected with rigidity shaft coupling line device, exterior sheathing adopts the lift-type external mold, be the 3mm thick cold rolled steel sheet, water the preceding seven road φ 9mm～12mm wire rope that bind round in the outside of exterior sheathing of concrete, give fastening with the device that tightly rises, the most following one wire rope is positioned at the root of exterior sheathing and concrete barrel lap-joint, and add timber wedge between wire rope and every template, the wedging degree of timber wedge still has the slit not make template deformation if add between timber wedge rear pattern plate lower edge and the concrete, blocked up tight, fastening again exterior sheathing, behind fastening the finishing, the radius of an exterior sheathing of check; Inner formword adopts alternately dislocation formula set shaped steel formwork, and internal mold is prepared two covers, with lift-type external mold coordinative construction; The first segment internal mold is installed on the surface of base, after first inner formword installs, promptly respectively to the left and right both sides install successively; The coupling part of inner formword is overlapped during installation, the junction plate of its upper end also is connected to each other, when assembling, every inner formword strut of a template configuration, the middle part of inner formword strut is with in the strut fulcrum ring coil holder and is connected with the path transfer screw on one side, and every cover inner formword is by two-layer internal mold bracing reinforcement up and down;
D. concrete construction
Begin concrete after exterior sheathing and inner formword are reinforced and build work; before concrete is built that template and concrete joint part is fully wetting; but ponding must not be arranged; lay the thick cement mortar setting course identical of 3cm～5cm around a circle then with the concrete match ratio; concrete adopts Commercial Concrete; pumping is adopted in transportation; can divide two groups when concrete is built and carry out, promptly begin to converge a bit, and then begin to be reversed from point along circumferential rightabout from a bit; so repeatedly; blanking is even when building, and layering is carried out, and builds every layer thickness that vibrates and generally is controlled at 250mm～300mm; concrete increases in proper order in the protection barrel template, prevents template deformation.Can take the method for mechanical packing when making firm by ramming.Do not insert when vibrating in the hypomere concrete, vibrator does not contact template and reinforcing bar, smash a distance and vibrating time should control suitable, concrete after building should be lower slightly than template upper edge, spillage phenomenon when connecing stranding to alleviate a last joint concrete after concrete has watered form removal, is promptly repaired and maintenance, concrete curing adopts brushing concrete healthy liquid, make the concrete surface be combined into the thin mould of one deck, the concrete surface is isolated with air, and the moisture content in the sealing concrete no longer is evaporated and finishes hydration, reach the purpose of health
E. normal mode construction
First mould construction is finished and is reached depanning intensity, promptly begin to promote external mold, the terminal template set bolt of external mold is untied, external mold and concrete break away from substantially, evenly external mold is promoted to a last mould height with cucurbit all around, the second mould inner formword and support system thereof are identical with the internal mold and the support system thereof of first mould with fixed form, and above inner formword of the 3rd mould and support system thereof are then by its core insert plate and support dislocation, fixed form is identical with second mould, and other operations are consistent with the construction of first mould.
F. connect between silo and handle
1) connecting method for reinforcing bars between silo
Reinforcing bar connects the intercepting lap length between silo, upwards bend in the wall reinforcement cover when bulkhead is constructed, and treats in time to dig out straightening when waiting to construct connected structure, welding after external mold promotes;
2) the formwork reinforcement method of connecting section between silo
The connecting section of finishing the silo wall and waiting to construct between the silo wall of having constructed adopts the split bolt reinforcement means, in connection section template vertical double split bolt is set, every row's split bolt has three bolts, with the silo number consecutively, when construction odd number silo, will upwards insert in the bulkhead reinforcement cover pull bar, end catches on main muscle, treat in time to dig out after exterior sheathing promotes, again bolt is welded spreading; Split bolt adopts pvc pipe to entangle split bolt, when treating form removable with elongated to drawing extraction,
3) external mold fixing means
Exterior sheathing is tangentially connected with odd number silo corresponding site with the exterior sheathing split bolt at the beginning point of attachment, and the method for split bolt is kept somewhere in advance with last identical in the silo relevant position.
Described concrete-structured conjoined cylindrical shell construction equipment and method, it is characterized in that: distance adheres to specification between the inner and outer template in order to make, use the reinforcing bar clamp to prop up and is located at the suitable for reading of exterior sheathing and inner formword, one of every formwork erection, its length equals this position barrel wall thickness.When watering to the inner formword upper limb, takes out concrete.
Described concrete-structured conjoined cylindrical shell construction equipment and method, it is characterized in that: in order to guarantee template level suitable for reading, and be convenient to form removal and when preventing to build concrete the concrete mortar flow out from the template bottom, therefore before inner formword is installed, along a circle backing plate is set on the basic circumference concrete face, backing plate is done camber with the 50mm plank by the design radial segmentation, and inner formword is installed on the sheeting caps that has fixed, earlier plank is removed during dismounting, removed inner formword again.
At present at home on the construction market, the conjuncted silo construction technology of concrete mainly is that mold technique is turned in traditional punching block slab support, taking cost into account, traditional punching block slab is set up scaffold inside and outside supporting the over-form construction arts demand, turnover such as scaffold and fastener materials demand amount is big, long construction period, its material lease expenses and labour cost are very high.The present invention adopts outer sliding interior construction technology.Solved between cylindrical shell location, cylindrical shell connect, the hole stays and establishes and technical problem such as pilaster construction, optimal design, it is convenient, simple to operate that utilization structure is rationally reliable, economic and practical, peace is torn open, reduced construction cost, obtained good economic effect.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is that the radiation beam is fixed on simplified schematic diagram on running derrick among the present invention;
Fig. 3 is the connection diagram of template between silo;
Fig. 4 is the silo schematic top plan view after the completion;
Fig. 5 is that the silo master after the completion looks schematic diagram.
The specific embodiment
Below further specify the present invention by specific embodiment.
A kind of concrete-structured conjoined cylindrical shell construction equipment, comprise pulley 1, run derrick 2, reinforce hoop 3, wire rope 4, chain hoist 5, railing 6, radiation beam 7, platform ring beam 8, safety net 9, outer suspension bracket 10, inner formword strut 12, coil holder 13 in the strut fulcrum ring, operating platform 14, exterior sheathing 15, inner formword 16, rigidity shaft coupling line device 17, internal hanger 18 and path transfer screw 19, as shown in Figure 1, concrete structure is: running derrick 2 is 1200 * 1200 single hole derricks, run derrick 2 by vertical rod, horizon bar and brace are built, vertical rod is perpendicular to ground, horizon bar perpendicular to vertical rod and and vertical rod be fixedly connected, brace connects the intersection point of vertical rod and horizon bar successively, run derrick and adopt ∠ 75 * 8 angle steel to do vertical rod, horizon bar and brace, the rod member that vertical rod connects usefulness adopts ∠ 90 * 8 angle steel, is connected and fixed with the M16 bolt.
Run derrick 2 top is equipped with pulley 1, the outside is with and reinforces hoop 3, the 2 bottom center places of vertically standing on the disjunctor tube run derrick, one end of radiation beam 7 is fixed on and runs derrick on 2 and parallel with ground, and with 2 the tie point of running derrick be the center of circle radially radially level be centered around and run derrick around 2, quantity is 24, as shown in Figure 2.Be covered with dull and stereotyped on the radiation beam 7 as operating platform 14; Radiation beam 7 bottoms are lined with platform ring beam 8, be ring shape, quantity is 3, radius increases successively, to run derrick 2 is that centres is installed, the platform ring beam 8 of outer ring is selected [16 channel-section steels for use, the platform ring beam 8 of centre circle and interior steel ring is selected [14 channel-section steels for use, the radiation beam selects [14 for use, radiation beam 7 upper edge are equipped with railing 6, radiation beam 7 is equipped with wire rope 4 near the outer rim places and 2 is connected, is connected with chain hoist 5 on the wire rope 4 with running derrick, chain hoist 5 and run derrick 2 angle between 30 °～40 °.Exterior sheathing 15 and inner formword 16 2 are that centres is installed to run derrick all, be concrete barrel 11 between exterior sheathing 15 and the inner formword 16, the inner ring of inner formword 16 is installed with inner formword strut 12, inner formword strut 12 all is positioned at the diameter place of inner formword 16 inner rings, the middle part of inner formword strut 12 is with in the strut fulcrum ring coil holder 13 and is connected with path transfer screw 19 on one side, the inner ring diameter place of concrete barrel 11 is connected with rigidity shaft coupling line device 17, the outer suspension bracket 10 of radiation beam 7 bottom exterior sheathings, 15 outer installations, outer suspension bracket 10 is covered with safety net 9, in the radiation beam 7 bottom inner formwords 16 internal hanger 18 is installed.
The reinforced concrete silo that conjuncted straight line side by side of First Five-Year Plan distributes, height 30m, every silo diameter 16.6m, carry out during construction as follows successively:
A. the installation that runs derrick
After foundation construction is finished, on raft foundation, install and run derrick 2, built by vertical rod, horizon bar and brace and to run derrick 2, vertical rod is perpendicular to ground, horizon bar perpendicular to vertical rod and and vertical rod be fixedly connected, brace connects the intersection point of vertical rod and horizon bar successively, pulley 1 is installed at run derrick 2 top, and outer cover is reinforced hoop 3, and the 2 bottom center places of vertically standing on the disjunctor tube run derrick, corner cable wind rope and earth anchorage, the plan-position of cable wind rope is consistent with the diagonal that runs derrick; When stack shell is constructed, keep stable for making to run derrick, will run derrick with rihid coupling is connected with the concrete barrel.
B. the installation of operating platform
The fixing radiation beam 7 parallel on 2 that run derrick with ground, radiation beam 7 with 2 the tie point of running derrick be the center of circle radially radially level be centered around and run derrick around 2, quantity is 24, radiation beam 7 upper berth flat boards are as operating platform 14; Radiation beam 7 bottoms lining platform ring beam 8, platform ring beam 8 is a ring shape, quantity is 2 to 5, radius increases successively, to run derrick 2 is that centres is installed, radiation beam 7 upper edge are installed railing 6, radiation beam 7 is installed wire rope 4 near the outer rim places and 2 is connected with running derrick, polyphone chain hoist 5 on the wire rope 4, outer suspension bracket 10 is installed at place, outer, radiation beam 7 bottom, outer suspension bracket 10 is covered with safety net 9, internal hangers 18 are installed in the suspension bracket 10 outside radiation beam 7 bottoms, with chain hoist 5 operating platform 14 are hung on then and run derrick on 2, chain hoist 5 and 2 the angle of running derrick are got 40 °;
Chain hoist is selected for use and is calculated as follows:
Design load comprises:
(1) operation platform system deadweight: get 5t;
(2) construction material weight: get 2t;
(3) constructor's weight: get 1.5t;
(4) inside and outside suspension bracket weight: get 1.2t;
(5) in the climbing shuttering, frictional resistance between template and concrete wall: get 2t;
(6) construction machinery weight: get 1t;
(7) wind load: get 1.5t;
(8) other loads: get 1t.
Therefore the minimum number of chain hoist is determined by following formula:
In the formula: N---total vertical load (KN)
The calculating bearing capacity (KN) of P---single chain hoist (adopt the chain hoist of 2.5t, getting safety factor is 2)
N---need minimum chain hoist quantity
θ---the boom hoist cable and the angle (getting 40 °) that runs derrick
The substitution formula:
Consider the stressed imbalance that produces of chain hoist, so the overload coefficient calculates by 20%, the quantity of design HSZ-5 type chain hoist is:
N=16 * 1.2=20 platform
Five storehouses amount to 100
C. exterior sheathing and inner formword are installed
To run derrick 2 is that centres is installed exterior sheathing 15 and inner formword 16, it between exterior sheathing 15 and the inner formword 16 concrete barrel 11 to be constructed, the inner ring of inner formword 16 is installed with inner formword strut 12, inner formword strut 12 all is positioned at the diameter place of inner formword 16 inner rings, the middle part of inner formword strut 12 is with in the strut fulcrum ring coil holder 13 and is connected with path transfer screw 19 on one side, the inner ring diameter place of concrete barrel 11 is connected with rigidity shaft coupling line device 17, exterior sheathing 15 adopts the lift-type external mold, be the 3mm thick cold rolled steel sheet, water the preceding seven road φ 9mm～12mm wire rope that bind round in the outside of exterior sheathing 15 of concrete, give fastening with the device that tightly rises, the most following one wire rope is positioned at the root of exterior sheathing 15 and concrete barrel 11 lap-joints, and add timber wedge between wire rope and every template, the wedging degree of timber wedge still has the slit not make template deformation if add between timber wedge rear pattern plate lower edge and the concrete, blocked up tight, fastening again exterior sheathing 15, behind fastening the finishing, the radius of an exterior sheathing 15 of check; Inner formword 16 adopts alternately dislocation formula set shaped steel formwork, and internal mold is prepared two covers, with lift-type external mold coordinative construction; The first segment internal mold is installed on the surface of base, after first inner formword installs, promptly respectively to the left and right both sides install successively; The coupling part of inner formword 16 is overlapped during installation, the junction plate of its upper end also is connected to each other, when assembling, every inner formword strut 12 of a template configuration, the middle part of inner formword strut 12 is with in the strut fulcrum ring coil holder 13 and is connected with path transfer screw 19 on one side, and every cover inner formword is by two-layer internal mold bracing reinforcement up and down; For distance is adhered to specification, use the reinforcing bar clamp to prop up and is located at the suitable for reading of exterior sheathing 15 and inner formword 16, one of every formwork erection, its length equals this position barrel wall thickness.When watering to inner formword 16 upper limbs, takes out concrete.In order to guarantee template level suitable for reading, and be convenient to form removal and when preventing to build concrete the concrete mortar flow out from the template bottom, therefore before inner formword 16 is installed, along a circle backing plate is set on the basic circumference concrete face, backing plate is done camber with the 50mm plank by the design radial segmentation, inner formword 16 is installed on the sheeting caps that has fixed, earlier plank is removed during dismounting, removes inner formword 16 again.
D. concrete construction
Begin concrete after exterior sheathing 15 and inner formword 16 are reinforced and build work; before concrete is built that template and concrete joint part is fully wetting; but ponding must not be arranged; lay the thick cement mortar setting course identical of 3cm～5cm around a circle then with the concrete cement-sand ratio; concrete adopts the automatic gauge mixing station to mix system; pumping is adopted in transportation; can divide two groups when concrete is built and carry out, promptly begin to converge a bit, and then begin to be reversed from point along circumferential rightabout from a bit; so repeatedly; blanking is even when building, and layering is carried out, and builds every layer thickness that vibrates and is controlled at 250mm～300mm; concrete increases in proper order in the protection barrel template, prevents template deformation.Can take the method for mechanical packing when making firm by ramming.Do not insert in the hypomere concrete when vibrating, vibrator does not contact template and reinforcing bar, smashes a distance and vibrating time and should control suitablely, and the concrete after building should be lower slightly than template upper edge, spillage phenomenon when connecing stranding to alleviate a last joint concrete, after concrete has watered form removal, promptly repair and maintenance, concrete curing adopts brushing concrete healthy liquid, make the concrete surface be combined into the thin mould of one deck, the concrete surface is isolated with air, and the moisture content in the sealing concrete no longer is evaporated and finishes hydration, reaches the purpose of health.
E. normal mode construction
First mould construction is finished and is reached depanning intensity, promptly begin to promote external mold, the terminal template set bolt of external mold is untied, external mold and concrete break away from substantially, evenly external mold is promoted to a last mould height with cucurbit all around, the second mould inner formword and support system thereof are identical with the internal mold and the support system thereof of first mould with fixed form, and above inner formword of the 3rd mould and support system thereof are then by its core insert plate and support dislocation, fixed form is identical with second mould, and other operations are consistent with the construction of first mould.
F. connect between silo and handle
1) connecting method for reinforcing bars between silo
Reinforcing bar connects the intercepting lap length between silo, upwards bend in the wall reinforcement cover when bulkhead is constructed, and treats in time to dig out straightening when waiting to construct connected structure, welding after external mold promotes;
2) the formwork reinforcement method of connecting section between silo
The connecting section of finishing silo wall 34 and waiting to construct between the silo wall 35 of having constructed adopts the split bolt reinforcement means, as shown in Figure 3, in connection section template 32 vertical double split bolt 31 is set, every row's split bolt 15 has three bolts, when construction 1#, 3#, 5# silo, will upwards insert in the bulkhead reinforcement cover pull bar, end catches on main muscle, treat in time to dig out after exterior sheathing 15 promotes, again bolt is welded spreading; Split bolt 15 can adopt pvc pipe to entangle split bolt, when treating form removable with elongated to drawing extraction to utilize again.
3) external mold fixing means
Because 1#, 3#, 5# silo have been constructed at corresponding absolute altitude position and have been finished, 2#, 4# silo exterior sheathing 15 can not form closed ring at point of attachment, therefore exterior sheathing 15 reinforcing modes and 1#, 3#, 5# silo have certain difference, for making 2#, 4# silo external mold that enough intensity, rigidity and stability can be arranged, exterior sheathing tangentially need be connected with 1#, 3#, 5# silo corresponding site with exterior sheathing split bolt 33 at the beginning point of attachment, the method for split bolt is kept somewhere in advance with last identical in 1#, 3#, 5# silo relevant position.
After finishing as shown in Figure 4 and Figure 5.
According to construction statistics in the past, if adopt the punching block slab to support job practices, scaffold, template peace are torn open and various expenses such as the people that enforcement took place of process such as transportation, material, machine amount to 71.4 ten thousand yuan; And adopt present embodiment put forward over-form construction method in the mould outward, peace is torn platform, template open, platform promotes and various expenses such as the people that enforcement took place of processes such as transportation, material, machine amount to 51.38 ten thousand yuan; Support 20.02 ten thousand yuan of job practices cost savings than punching block slab, expense reduces 28%, and economic benefit is very obvious.
Claims (6)
1. concrete-structured conjoined cylindrical shell construction equipment, comprise pulley (1), (2) run derrick, reinforce hoop (3), wire rope (4), chain hoist (5), railing (6), radiation beam (7), platform ring beam (8), safety net (9), outer suspension bracket (10), inner formword strut (12), coil holder (13) in the strut fulcrum ring, operating platform (14), exterior sheathing (15), inner formword (16), rigidity shaft coupling line device (17), internal hanger (18) and path transfer screw (19), run derrick (2) by vertical rod, horizon bar and brace are built, vertical rod is perpendicular to ground, horizon bar perpendicular to vertical rod and and vertical rod be fixedly connected, brace connects the intersection point of vertical rod and horizon bar successively, the run derrick top of (2) is equipped with pulley (1), the outside is with and reinforces hoop (3), it is characterized in that: run derrick (2) vertically stand on the bottom center place of disjunctor tube, it is last and parallel with ground that one end of radiation beam (7) is fixed on run derrick (2), and with the tie point with run derrick (2) be the center of circle radially radially level be centered around and run derrick (2) all around, quantity is 5 to 25, is covered with dull and stereotyped as operating platform (14) on the radiation beam (7); Radiation beam (7) bottom is lined with platform ring beam (8), platform ring beam (8) is a ring shape, quantity is 2 to 5, radius increases successively, with run derrick (2) is that centres is installed, radiation beam (7) upper edge is equipped with railing (6), radiation beam (7) is equipped with wire rope (4) near the outer rim place and is connected with run derrick (2), be connected with chain hoist (5) on the wire rope (4), exterior sheathing (15) and inner formword (16) are that centres is installed with run derrick (2) all, it between exterior sheathing (15) and the inner formword (16) concrete barrel (11) to be constructed, the inner ring of inner formword (16) is installed with inner formword strut (12), inner formword strut (12) all is positioned at the diameter place of inner formword (16) inner ring, the middle part of inner formword strut (12) is with in the strut fulcrum ring coil holder (13) and is connected with path transfer screw (19) on one side, the inner ring diameter place of concrete barrel (11) is connected with rigidity shaft coupling line device (17), the outer outer suspension bracket (10) of installing of radiation beam (7) bottom exterior sheathing (15), outer suspension bracket (10) is covered with safety net (9), and internal hanger (18) is installed in radiation beam (7) the bottom inner formword (16).
2. a kind of concrete-structured conjoined cylindrical shell construction equipment as claimed in claim 1 is characterized in that: run derrick (2) are 1200 * 1200 single hole derricks, chain hoist (5) and run derrick angle between (2) between 30 °～40 °.
3. concrete-structured conjoined cylindrical shell job practices is characterized in that: carry out successively as follows:
A. the installation that runs derrick
After foundation construction is finished, on raft foundation, install run derrick (2), build run derrick (2) by vertical rod, horizon bar and brace, vertical rod is perpendicular to ground, horizon bar perpendicular to vertical rod and and vertical rod be fixedly connected, brace connects the intersection point of vertical rod and horizon bar successively, pulley (1) is installed at the run derrick top of (2), outer cover is reinforced hoop (3), run derrick (2) vertically stand on the bottom center place of disjunctor tube, corner cable wind rope and earth anchorage, the plan-position of cable wind rope is consistent with the diagonal that runs derrick; When stack shell is constructed, keep stable for making to run derrick, will run derrick with rihid coupling is connected with the concrete barrel;
B. the installation of operating platform
(2) upward fixing radiation beam (7) parallel with ground runs derrick, radiation beam (7) with the tie point with run derrick (2) be the center of circle radially radially level be centered around and run derrick (2) all around, quantity is 5 to 25, and radiation beam (7) upper berth flat board is as operating platform (14); Radiation beam (7) bottom lining platform ring beam (8), platform ring beam (8) is a ring shape, quantity is 2 to 5, radius increases successively, with run derrick (2) is that centres is installed, radiation beam (7) upper edge is installed railing (6), radiation beam (7) is installed wire rope (4) near the outer rim place and is connected with run derrick (2), wire rope (4) is gone up polyphone chain hoist (5), outer suspension bracket (10) is installed at place, radiation beam (7) outer, bottom, outer suspension bracket (10) is covered with safety net (9), internal hanger (18) is installed in the suspension bracket (10) outside radiation beam (7) bottom, use chain hoist (5) that operating platform (14) is hung on run derrick (2) then, chain hoist (5) and run derrick angle between (2) between 30 °～40 °;
C. exterior sheathing and inner formword are installed
With run derrick (2) is that centres is installed exterior sheathing (15) and inner formword (16), it between exterior sheathing (15) and the inner formword (16) concrete barrel (11) to be processed, the inner ring of inner formword (16) is installed with inner formword strut (12), inner formword strut (12) all is positioned at the diameter place of inner formword (16) inner ring, the middle part of inner formword strut (12) is with in the strut fulcrum ring coil holder (13) and is connected with path transfer screw (19) on one side, the inner ring diameter place of concrete barrel (11) is connected with rigidity shaft coupling line device (17), exterior sheathing (15) adopts the lift-type external mold, be the 3mm thick cold rolled steel sheet, water preceding seven road φ, 9～12 wire rope that bind round in the outside of exterior sheathing (15) of concrete, give fastening with the device that tightly rises, the most following one wire rope is positioned at the root of exterior sheathing (15) and concrete barrel (11) lap-joint, and add timber wedge between wire rope and every template, the wedging degree of timber wedge is not to make template deformation, if add between timber wedge rear pattern plate lower edge and the concrete and still have the slit, blocked up tight, fastening again exterior sheathing (15), behind fastening the finishing, check the radius of an exterior sheathing (15); Inner formword (16) adopts alternately dislocation formula set shaped steel formwork, and internal mold is prepared two covers, with lift-type external mold coordinative construction; The first segment internal mold is installed on the surface of base, after first inner formword installs, promptly respectively to the left and right both sides install successively; The coupling part of inner formword during installation (16) is overlapped, the junction plate of its upper end also is connected to each other, when assembling, every an inner formword strut of a template configuration (12), the middle part of inner formword strut (12) is with in the strut fulcrum ring coil holder (13) and is connected with path transfer screw (19) on one side, and every cover inner formword is by two-layer internal mold bracing reinforcement up and down;
D. concrete construction
Begin concrete after exterior sheathing (15) and inner formword (16) are reinforced and build work; before concrete is built that template and concrete joint part is fully wetting; but ponding must not be arranged; lay the thick cement mortar setting course identical of 3cm～5cm around a circle then with the concrete match ratio; pumping is adopted in transportation; blanking was even when concrete was built; layering is carried out, and builds every layer thickness that vibrates and is controlled at 250mm～300mm, and concrete increases in proper order in the protection barrel template; do not insert in the hypomere concrete when vibrating; vibrator does not contact template and reinforcing bar, smashes a distance and vibrating time and should control suitablely, and the concrete after building is lower slightly than template upper edge; after concrete has watered form removal; promptly repair and maintenance, concrete curing adopts brushing concrete healthy liquid, makes the concrete surface be combined into the thin mould of one deck; the concrete surface is isolated with air
E. normal mode construction
First mould construction is finished and is reached depanning intensity, promptly begin to promote external mold, the terminal template set bolt of external mold is untied, external mold and concrete break away from substantially, evenly external mold are promoted to a last mould height with cucurbit all around, and the second mould inner formword and support system thereof are identical with the internal mold and the support system thereof of first mould with fixed form, above inner formword of the 3rd mould and support system thereof are then by its core insert plate and support dislocation, fixed form is identical with second mould, and other operations are consistent with the construction of first mould
F. connect between silo and handle
1) connecting method for reinforcing bars between silo
Reinforcing bar connects the intercepting lap length between silo, upwards bend in the wall reinforcement cover when bulkhead is constructed, and treats in time to dig out straightening when waiting to construct connected structure, welding after external mold promotes;
2) the formwork reinforcement method of connecting section between silo
The connecting section of finishing silo wall (34) and waiting to construct between the silo wall (35) of having constructed adopts the split bolt reinforcement means, in connection section template (32) vertical double split bolt (31) is set, every row's split bolt (31) has three bolts, with the silo number consecutively, when construction odd number silo, will upwards insert in the bulkhead reinforcement cover pull bar, end catches on main muscle, treat in time to dig out after exterior sheathing (15) promotes, again bolt is welded spreading; Split bolt (31) adopts pvc pipe to entangle split bolt, when treating form removable with elongated to drawing extraction,
3) external mold fixing means
Tangentially use exterior sheathing split bolt (33) to connect with odd number silo corresponding site at the beginning point of attachment exterior sheathing, the method for split bolt is kept somewhere in advance with last identical in the silo relevant position.
4. concrete-structured conjoined cylindrical shell job practices as claimed in claim 3, it is characterized in that: in c. exterior sheathing and inner formword installation steps, the reinforcing bar clamp that installs suitable for reading of exterior sheathing (15) and inner formword (16), one of every formwork erection, its length equals this position barrel wall thickness, takes out when concrete waters to inner formword (16) upper limb.
5. concrete-structured conjoined cylindrical shell job practices as claimed in claim 3, it is characterized in that: in c. exterior sheathing and inner formword installation steps, inner formword (16) is preceding installing, along a circle backing plate is set on the basic circumference concrete face, backing plate is done camber with the 50mm plank by the design radial segmentation, inner formword (16) is installed on the sheeting caps that has fixed, earlier plank is removed during dismounting, removes inner formword (16) again.
6. concrete-structured conjoined cylindrical shell job practices as claimed in claim 3, it is characterized in that: in d. concrete construction step, concrete is built two groups of time-divisions and is carried out, promptly begin to carry out round about respectively until converging a bit along circumference from a bit, and then begin to be reversed from point, carry out so repeatedly, take the mechanical packing method when making firm by ramming.
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| CN200910047532XA CN101832049B (en) | 2009-03-13 | 2009-03-13 | Concrete-structured conjoined cylindrical shell construction device and method therefor |
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| CN200910047532XA CN101832049B (en) | 2009-03-13 | 2009-03-13 | Concrete-structured conjoined cylindrical shell construction device and method therefor |
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| CN102677890A (en) * | 2012-04-23 | 2012-09-19 | 中化二建集团第三安装工程有限公司 | Chimney building formwork lifting device and construction method |
| CN102677689A (en) * | 2012-03-28 | 2012-09-19 | 天津二十冶建设有限公司 | Structure for pouring column foundation cup mouth and pouring method |
| US11518608B2 (en) | 2016-11-03 | 2022-12-06 | Westcap Ag Corp. | Mobile collapsible storage silo |
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| US11518608B2 (en) | 2016-11-03 | 2022-12-06 | Westcap Ag Corp. | Mobile collapsible storage silo |
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