CN105442840A - Construction method of cantilever formwork supporting frame - Google Patents
Construction method of cantilever formwork supporting frame Download PDFInfo
- Publication number
- CN105442840A CN105442840A CN201510765408.2A CN201510765408A CN105442840A CN 105442840 A CN105442840 A CN 105442840A CN 201510765408 A CN201510765408 A CN 201510765408A CN 105442840 A CN105442840 A CN 105442840A
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- Prior art keywords
- balancing stand
- plate
- overhanging
- supporting frame
- support
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Classifications
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G13/00—Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies foundations, sills
- E04G13/06—Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies foundations, sills for stairs, steps, cornices, balconies, or other parts corbelled out of the wall
- E04G13/066—Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies foundations, sills for stairs, steps, cornices, balconies, or other parts corbelled out of the wall for overhangs
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G17/00—Connecting or other auxiliary members for forms, falsework structures, or shutterings
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G17/00—Connecting or other auxiliary members for forms, falsework structures, or shutterings
- E04G17/16—Members, e.g. consoles, for attachment to the wall to support girders, beams, or the like carrying forms or moulds for floors, lintels, or transoms
Abstract
The invention discloses a construction method of a cantilever formwork supporting frame. The method comprises the steps that a pulling device is arranged, and a cantilever supporting frame, a first balance frame and a second balance frame are erected on a cantilever beam in sequence, and relevant arrangement is carried out. According to the construction method, the problems that an existing common steel wire rope flexible pulling cantilever beam is too large in deformation, and load distribution is uneven are solved, deformation of a structural steel cantilever beam can be controlled, the wind load effect of the cantilever supporting frame at high altitude can be resisted, and the overturn risk of the cantilever supporting frame can be reduced. The cantilever formwork supporting frame is simple in structure, easy to machine, high in bearing capacity, and particularly suitable for design and construction of a super-long cantilever structure formwork supporting frame. According to the cantilever formwork supporting frame, raw materials are easy to obtain, assembly and disassembly are easy and convenient, reutilization is achieved, and the application and popularization value is high.
Description
Technical field
The present invention relates to the structure of cantilevered structure formwork-support in a kind of building engineering construction, be specifically related to a kind of building method of supporting frame for overhanging mold plate, heat is not applicable to the structure of overlength, high-altitude, the cast-in-place cantilevered structure formwork-support of multilayer.
Background technology
Along with the continuous lifting of China's economic society level, people not only meet the basic using function with building or works, require also more and more higher to the Aesthetic Function such as moulding, outward appearance of building.Along with this trend, various building types continues to bring out, and wherein just comprises many suspended structure at high altitude things.This kind of suspended structure at high altitude especially cast-in-place structural needs to set up supporting frame for overhanging mold plate to complete construction.Supporting frame for overhanging mold plate conventional at present adopts the mode of steel cable flexible drawknot and shaped steel Cantilever Beams.But this drawknot mode has following problem: whether wire rope, as flexible drawknot, bears load, and bear how many loads and not easily determine; The elongation rate of wire rope does not mate with the distortion of shaped steel Cantilever Beams, and when wire rope reaches design drag, builder's jack outrigger already deflection deformation is excessive, has played pendulum; Wire rope is difficult to tighten in drawknot process, sets up with in work progress, each steel wire tensioning degree varies actual, can not according to design idea producing balanced forces; Wire rope drawknot computation model is simplified to linking bar supports participation calculating and differs comparatively large with reality, and calculating cantilevered structure practical distortion according to this model can not meet the demands, and is unfavorable for again scene calculating according to other models; If press cantilevered structure completely to calculate, wire rope does not participate in bearing load, for overlength cantilevered structure, shaped steel Cantilever Beams sectional dimension can be very large, cause very large waste of material, not easily reach the requirement of safety of structure, and the overhanging support needs being in height aerial bear very large wind load, there is the risk of toppling very greatly when building cantilevered structure plate, and the structural slab of anchoring Cantilever Beams may cause destruction due to additional load-bearing.
Summary of the invention
For above-mentioned problems of the prior art, the object of the invention is to, a kind of building method of supporting frame for overhanging mold plate is provided, the method supporting frame for overhanging mold plate load-bearing ability of building is strong, be conducive to the distortion controlling shaped steel Cantilever Beams, be conducive to resisting the wind action of the overhanging support under high dummy status, be conducive to the risk of toppling reducing overhanging support, be particularly suitable for overlength, high-altitude, the cast-in-place cantilevered structure construction of multilayer.
In order to realize above-mentioned task, the present invention by the following technical solutions:
A building method for supporting frame for overhanging mold plate, comprises the following steps:
Step one, arranges drawknot device
Step S10, is cemented on fabric structure by anchor plate by pre-embedded bolt, consolidation second monaural plate on anchor plate;
Step S11, Cantilever Beams arranges linkage, and linkage comprises base plate, base plate is fixed on Cantilever Beams by U bolt, described Cantilever Beams is through the middle part of U bolt, and the two ends of U bolt, respectively by the two ends of fastening nuts at base plate, base plate are consolidated with the first monaural plate;
Step S12, processing tie bar:
Get two hollow steel pipes, utilize in one end of each steel pipe circular end socket steel plate to seal, a fixed head with screw is all set at the other end of each steel pipe;
Have one end of screw to utilize adjusting screw(rod) to dock two hollow steel strips, the two ends of adjusting screw(rod) are assemblied in the screwed hole of the upper mounted plate of two steel pipes respectively, obtain tie bar;
Step S13, the installation of drawknot device:
By consolidation second bi-lug plate on the end socket steel plate of tie bar upper end, consolidation first bi-lug plate on the end socket steel plate of drawknot bar lower end, first bi-lug plate be connected by the first set bolt with the first monaural plate, the second bi-lug plate is connected by the second set bolt with the second monaural plate;
Step 2, Cantilever Beams sets up overhanging support, and the height of overhanging support is the height of two-layer fabric structure layer;
Step 3, the lower one deck fabric structure layer of Cantilever Beams installing overhanging support sets up the first balancing stand, the same layer fabric structure layer of Cantilever Beams installing overhanging support sets up the second balancing stand, described overhanging support, the first balancing stand, the second balancing stand include horizon bar and vertical rod, horizon bar consolidation vertical with vertical rod, horizon bar and vertical rod all arrange many;
When setting up the second balancing stand:
Make overhanging support and the second balancing stand share horizon bar, horizon bar laterally draws logical, connects with all vertical rods of overhanging support, the second balancing stand; When the curtailment of horizon bar is laterally to draw logical, overhanging support and the second balancing stand set up its horizon bar separately, and both horizon bars level of the horizon bar of overhanging support and the second balancing stand is overlapped, two spans that lap length is greater than overhanging support or the second balancing stand from, lap position adopts rotary buckle to connect.
Further, when setting up the first balancing stand, the second balancing stand, the top of the first balancing stand, the second balancing stand is provided with adjustable holder support, is provided with wooden a tree, used in making timber for boats, makes to hold out against between wooden a tree, used in making timber for boats and fabric structure layer by adjustable support between at the bottom of adjustable holder support and last layer structure nitride layer.
Further, in the spacing of vertical rod in the first described balancing stand, the second balancing stand, the spacing of the spacing of vertical rod is all identical with overhanging support.
Further, the first described balancing stand, that the transverse direction of the second balancing stand sets up width is all identical with the length of Cantilever Beams, and the longitudinal direction of the first balancing stand, the second balancing stand sets up total length and overhanging support, and longitudinally to set up length identical.
Further, the middle part of described adjusting screw(rod) is provided with regulating block, and the cross section of regulating block is the polygonized structure of rule.
The present invention compared with prior art has following technical characterstic:
The invention solves steel cable flexible drawknot Cantilever Beams distortion conventional at present excessive, the problem of load maldistribution is conducive to the distortion controlling shaped steel Cantilever Beams.Be conducive to resisting the wind action of the overhanging support under high dummy status, be conducive to the risk of toppling reducing overhanging support.This device simple structure, be easy to processing, supporting capacity is strong, is particularly suitable for design and the construction of overlength cantilevered structure formwork-support.This device materials is simple and easy to get, it is easy to install and remove, can reuse, and has higher application and popularization value.
Accompanying drawing explanation
Fig. 1 is the flow chart of the inventive method;
Fig. 2 is the overall structure schematic diagram of the supporting frame for overhanging mold plate according to this method structure;
Fig. 3 is the structural representation of drawknot device section;
Fig. 4 is the structural representation that adjustable holder support part is divided;
Fig. 5 is the structural representation of tie bar;
Fig. 6 is the structural representation of linkage part;
Fig. 7 is the structural representation of anchor plate part;
Number in the figure represents: 1-overhanging support, 2-tie bar, 3-Cantilever Beams, 5-fabric structure layer, 6-the second balancing stand, 7-the first balancing stand, 8-horizon bar, 9-vertical rod, 10-anchor plate, 11-steel pipe, 12-adjusting screw(rod), 13-end socket steel plate, 14-linkage, 15-wooden a tree, used in making timber for boats, 16-adjustable holder support, 17-the first bi-lug plate, 18-regulating block, 19-fixed head, 20-the second bi-lug plate, 21-the first monaural plate, 22-the first set bolt, 23-U bolt, 24-pre-embedded bolt, 25-the second monaural plate, 26-the second set bolt.
Detailed description of the invention
Shown in Fig. 4, The present invention gives a kind of building method of supporting frame for overhanging mold plate, specifically comprise the following steps:
Step one, arranges drawknot device
The first step of the method is that all Cantilever Beams arranged at building arrange drawknot device, to reinforce Cantilever Beams; Adopt this rigidity drawknot device in this method, by making, the ability of anti-deformation of Cantilever Beams is better.
Step S10, is cemented on fabric structure by anchor plate by pre-embedded bolt, consolidation second monaural plate on anchor plate; Here the position of anchor plate consolidation can be on the outer wall of last layer fabric structure layer; Otic placode can adopt the modes such as welding to be cemented on anchor plate;
Step S11, Cantilever Beams arranges linkage, and linkage comprises base plate, and base plate is fixed on Cantilever Beams by U bolt, and described Cantilever Beams is through the middle part of U bolt, and the two ends of U bolt are respectively by the two ends of fastening nuts at base plate; By U bolt, can, by locked for base plate on Cantilever Beams, make the two be integrated, be conducive to the fixing of Cantilever Beams, base plate welds the first monaural plate;
After linkage and anchor plate set, drawknot device is set between:
Step S12, processing tie bar:
Get two hollow steel pipes, utilize in one end of each steel pipe circular end socket steel plate to seal, a fixed head with screw is all set at the other end of each steel pipe;
Have one end of screw to utilize adjusting screw(rod) to dock two hollow steel strips, the two ends of adjusting screw(rod) are assemblied in the screwed hole of the upper mounted plate of two steel pipes respectively, obtain tie bar; During such rotation adjusting screw(rod), the distance between two steel pipes can be changed, to reach the object regulating tie bar length; This tie bar structure is rigidity drawknot structure, has the drawknot performance more excellent than wire digging line.
For the ease of adjustment adjusting screw(rod), the middle part of adjusting screw(rod) is provided with regulating block, and the cross section of regulating block is the polygonized structure of rule; Such as profile is hexagon or quadrangle, is convenient to coordinate with spanner, rotates, for regulating distortion or the Shi Hanzhang of Cantilever Beams to order about adjusting screw(rod).
After linkage, anchor plate and tie bar all set, carry out the installation of drawknot device:
Step S13, the installation of drawknot device:
By consolidation second bi-lug plate on the end socket steel plate of tie bar upper end, consolidation first bi-lug plate on the end socket steel plate of drawknot bar lower end, first bi-lug plate be connected by the first set bolt with the first monaural plate, the second bi-lug plate is connected by the second set bolt with the second monaural plate;
By regulating the length of tie bar, to regulate the position of Cantilever Beams.When mounted, first can be connected otic placode, second to two sections of steel pipes with first respectively by the first bi-lug plate and the second bi-lug plate connects after otic placode is fixedly connected with, again two steel pipes one end with screw is aimed at, adjusting screw(rod) and two steel pipes are carried out assembly connection, and carrys out adjusting elasticity degree when connection by rotating adjusting screw(rod).
At each Cantilever Beams place of fabric structure, said method is all installed and drawknot device is set, then be a processing unit with the last layer of each Cantilever Beams place fabric structure layer, Cantilever Beams place layer and lower one deck, following processing procedure carried out to each processing unit:
Step 2, Cantilever Beams sets up overhanging support, and its height is determined according to actual condition, and such as, in this example, the height of overhanging support is the height of two-layer fabric structure layer; As shown in Figure 1;
Step 3, the lower one deck fabric structure layer of Cantilever Beams installing overhanging support sets up the first balancing stand, and the same layer fabric structure layer of Cantilever Beams installing overhanging support sets up the second balancing stand; Described overhanging support, the first balancing stand, the second balancing stand include horizon bar and vertical rod, horizon bar consolidation vertical with vertical rod, and horizon bar and vertical rod all arrange many;
When setting up the second balancing stand:
Make overhanging support and the second balancing stand share horizon bar, horizon bar laterally draws logical, connects with all vertical rods of overhanging support, the second balancing stand; When the curtailment of horizon bar is laterally to draw logical (namely connecting with all vertical rods), overhanging support and the second balancing stand set up its horizon bar separately, and both horizon bars level of the horizon bar of overhanging support and the second balancing stand is overlapped, two spans that lap length is greater than overhanging support or the second balancing stand from, lap position adopts rotary buckle to connect;
In addition, in the process set up, can also following setting be carried out:
In the spacing of vertical rod in the first balancing stand, the second balancing stand, the spacing of the spacing of vertical rod is all identical with overhanging support, refers to the spacing of two vertical rods adjacent in each balancing stand here, namely one across length.
It is all identical with the length of Cantilever Beams that the transverse direction of the first balancing stand, the second balancing stand sets up width, and the longitudinal direction of the first balancing stand, the second balancing stand sets up total length and overhanging support, and longitudinally to set up length identical.
When setting up the first balancing stand, the second balancing stand, the top of the first balancing stand, the second balancing stand is provided with adjustable holder support, be provided with wooden a tree, used in making timber for boats between at the bottom of adjustable holder support and last layer structure nitride layer, make to hold out against between wooden a tree, used in making timber for boats and fabric structure layer by adjustable support.
The vertical pole ' s span of the first balancing stand, the second balancing stand is identical, and up and down to it, namely on three layer construction layer in balancing stand from top to bottom vertical rod all on a rule straight line.
Claims (5)
1. a building method for supporting frame for overhanging mold plate, is characterized in that, comprises the following steps:
Step one, arranges drawknot device
Step S10, is cemented on fabric structure by anchor plate by pre-embedded bolt, consolidation second monaural plate on anchor plate;
Step S11, Cantilever Beams arranges linkage, and linkage comprises base plate, base plate is fixed on Cantilever Beams by U bolt, described Cantilever Beams is through the middle part of U bolt, and the two ends of U bolt, respectively by the two ends of fastening nuts at base plate, base plate are consolidated with the first monaural plate;
Step S12, processing tie bar:
Get two hollow steel pipes, utilize in one end of each steel pipe circular end socket steel plate to seal, a fixed head with screw is all set at the other end of each steel pipe;
Have one end of screw to utilize adjusting screw(rod) to dock two hollow steel strips, the two ends of adjusting screw(rod) are assemblied in the screwed hole of the upper mounted plate of two steel pipes respectively, obtain tie bar;
Step S13, the installation of drawknot device:
By consolidation second bi-lug plate on the end socket steel plate of tie bar upper end, consolidation first bi-lug plate on the end socket steel plate of drawknot bar lower end, first bi-lug plate be connected by the first set bolt with the first monaural plate, the second bi-lug plate is connected by the second set bolt with the second monaural plate;
Step 2, Cantilever Beams sets up overhanging support, and the height of overhanging support is the height of two-layer fabric structure layer;
Step 3, the lower one deck fabric structure layer of Cantilever Beams installing overhanging support sets up the first balancing stand, and the same layer fabric structure layer of Cantilever Beams installing overhanging support sets up the second balancing stand; Described overhanging support, the first balancing stand, the second balancing stand include horizon bar and vertical rod, horizon bar consolidation vertical with vertical rod, and horizon bar and vertical rod all arrange many;
When setting up the second balancing stand:
Make overhanging support and the second balancing stand share horizon bar, horizon bar laterally draws logical, connects with all vertical rods of overhanging support, the second balancing stand; When the curtailment of horizon bar is laterally to draw logical, overhanging support and the second balancing stand set up its horizon bar separately, and both horizon bars level of the horizon bar of overhanging support and the second balancing stand is overlapped, two spans that lap length is greater than overhanging support or the second balancing stand from, lap position adopts rotary buckle to connect.
2. the building method of supporting frame for overhanging mold plate as claimed in claim 1, it is characterized in that, when setting up the first balancing stand, the second balancing stand, the top of the first balancing stand, the second balancing stand is provided with adjustable holder support, be provided with wooden a tree, used in making timber for boats between at the bottom of adjustable holder support and last layer structure nitride layer, make to hold out against between wooden a tree, used in making timber for boats and fabric structure layer by adjustable support.
3. the building method of supporting frame for overhanging mold plate as claimed in claim 1, is characterized in that, in the spacing of vertical rod in the first described balancing stand, the second balancing stand, the spacing of vertical rod is all identical with overhanging support.
4. the building method of supporting frame for overhanging mold plate as claimed in claim 1, it is characterized in that, the first described balancing stand, that the transverse direction of the second balancing stand sets up width is all identical with the length of Cantilever Beams, and the longitudinal direction of the first balancing stand, the second balancing stand sets up total length and overhanging support, and longitudinally to set up length identical.
5. the building method of supporting frame for overhanging mold plate as claimed in claim 1, it is characterized in that, the middle part of described adjusting screw(rod) is provided with regulating block, and the cross section of regulating block is the polygonized structure of rule.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510765408.2A CN105442840B (en) | 2015-11-11 | 2015-11-11 | A kind of building method of supporting frame for overhanging mold plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510765408.2A CN105442840B (en) | 2015-11-11 | 2015-11-11 | A kind of building method of supporting frame for overhanging mold plate |
Publications (2)
| Publication Number | Publication Date |
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| CN105442840A true CN105442840A (en) | 2016-03-30 |
| CN105442840B CN105442840B (en) | 2017-12-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510765408.2A Expired - Fee Related CN105442840B (en) | 2015-11-11 | 2015-11-11 | A kind of building method of supporting frame for overhanging mold plate |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107489270A (en) * | 2016-06-12 | 2017-12-19 | 五冶集团上海有限公司 | Steel concrete shuttering support frame installation method at a kind of hole |
| CN110424733A (en) * | 2019-06-28 | 2019-11-08 | 中国十七冶集团有限公司 | A kind of high-altitude long-span overhung exempts from floor-type support structure and its construction method |
| CN114961244A (en) * | 2022-06-10 | 2022-08-30 | 中交二公局东萌工程有限公司 | Support steelframe of high altitude large-span cantilever structure die carrier |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107489270A (en) * | 2016-06-12 | 2017-12-19 | 五冶集团上海有限公司 | Steel concrete shuttering support frame installation method at a kind of hole |
| CN110424733A (en) * | 2019-06-28 | 2019-11-08 | 中国十七冶集团有限公司 | A kind of high-altitude long-span overhung exempts from floor-type support structure and its construction method |
| CN114961244A (en) * | 2022-06-10 | 2022-08-30 | 中交二公局东萌工程有限公司 | Support steelframe of high altitude large-span cantilever structure die carrier |
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| Publication number | Publication date |
|---|---|
| CN105442840B (en) | 2017-12-15 |
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