CN116290916A - Temporary supporting device suitable for heavy assembly type component and low-carbon construction method - Google Patents

Temporary supporting device suitable for heavy assembly type component and low-carbon construction method Download PDF

Info

Publication number
CN116290916A
CN116290916A CN202310334682.9A CN202310334682A CN116290916A CN 116290916 A CN116290916 A CN 116290916A CN 202310334682 A CN202310334682 A CN 202310334682A CN 116290916 A CN116290916 A CN 116290916A
Authority
CN
China
Prior art keywords
temporary
plate
platform
temporary support
frame body
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202310334682.9A
Other languages
Chinese (zh)
Inventor
代跃强
徐向国
罗津津
张洋
郑美玲
邵伟晨
戚兆波
王安
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China Construction Sixth Engineering Division Co Ltd
China Construction Sixth Bureau Construction Development Co Ltd
Original Assignee
China Construction Sixth Engineering Division Co Ltd
China Construction Sixth Bureau Construction Development Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by China Construction Sixth Engineering Division Co Ltd, China Construction Sixth Bureau Construction Development Co Ltd filed Critical China Construction Sixth Engineering Division Co Ltd
Priority to CN202310334682.9A priority Critical patent/CN116290916A/en
Publication of CN116290916A publication Critical patent/CN116290916A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • 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
    • E04G25/00—Shores or struts; Chocks
    • E04G25/04—Shores or struts; Chocks telescopic
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
    • E04G21/14—Conveying or assembling building elements
    • E04G21/16—Tools or apparatus
    • E04G21/18—Adjusting tools; Templates
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
    • E04G21/14—Conveying or assembling building elements
    • E04G21/16—Tools or apparatus
    • E04G21/18—Adjusting tools; Templates
    • E04G21/1841—Means for positioning building parts or elements
    • 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
    • E04G3/00—Scaffolds essentially supported by building constructions, e.g. adjustable in height
    • 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
    • E04G5/00—Component parts or accessories for scaffolds
    • E04G5/10—Steps or ladders specially adapted for scaffolds
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/50—Photovoltaic [PV] energy

Abstract

The invention relates to a temporary supporting device and a low-carbon construction method suitable for a heavy assembly type component, wherein the temporary supporting device comprises a bottom conversion beam, a temporary supporting frame body, a top conversion platform, a jacking and fixing device, a deviation adjusting device, a component holding device, an operating platform and a cat ladder, and the bottom conversion beam is used as a bottom support of the temporary supporting frame body and is effectively anchored with a structural main beam; a temporary support frame body is erected on the bottom conversion beam, nodes in a bidirectional connection mode are adopted among the temporary support frame bodies, and a top conversion platform is used for distributing upper concentrated load and guaranteeing uniform stress; the top of the conversion platform adopts a jacking and fixing device to finish the uniform lifting of the frame body; the deflection adjusting device is used for completing deflection adjustment and posture adjustment of the supported member; and the component holding and wrapping device is used for assisting in fixing the component in place. The invention can effectively realize the accurate installation and positioning of the heavy assembly type component, ensures the low-carbon construction and the high-precision installation, and has safe and reliable structure and strong practicability.

Description

Temporary supporting device suitable for heavy assembly type component and low-carbon construction method
Technical Field
The invention relates to the technical field of assembly type component installation, in particular to a temporary supporting device suitable for a heavy assembly type component and a low-carbon construction method.
Background
In large exhibition halls, stadiums and other projects, a large-span or long overhanging form with local retraction is often adopted, and because of the special use function, inclined or arc-shaped heavy members are often adopted, so that the degree of freedom and the stress state of an upper structure are different from the design state before the upper structure is installed in place, a transient system, a geometric variable system or a local stress is easy to generate. Moreover, because the deformation of the large-span and heavy members before and after installation is larger, the deformation of the temporary support is not negligible, and the assembly precision requirement is more strict.
At present, the installation of the heavy assembly type components (assembly type steel structural components, assembly type prestressed concrete components and assembly type steel reinforced concrete components) usually adopts two forms: one is by means of lifting equipment, high-altitude installation is carried out in place, and a falling hook after connection is formed; the other is to set up a temporary supporting frame from the ground to assist in installing the components. In the first installation process, since the lifting equipment is subjected to wind load and self vibration, the field operation of workers is affected, and the lifting equipment is occupied, so that the mechanical utilization rate is reduced; the second installation process, because of rooting from the ground, often needs to adopt the form of adhesion and parallel connection to ensure the stability of the installation process, and has the problems of long manufacturing period, low assembly precision, low recycling rate, low construction efficiency and the like.
How to reduce the consumption of temporary support, how to improve the turnover rate of temporary support, how to improve the utilization rate of construction machinery, how to reduce the use of disposable materials, and becomes another problem in the research and development of temporary support systems.
Disclosure of Invention
The invention aims to solve the defects of the prior art and provides a temporary supporting device suitable for a heavy assembly type component and a low-carbon construction method.
The invention adopts the following technical scheme to realize the aim:
the temporary supporting device suitable for the heavy assembly type components comprises a bottom conversion beam fixed on a structural main beam, a temporary supporting frame body erected on the bottom conversion beam, a top conversion platform mounted on the temporary supporting frame body, a jacking and fixing device erected on the top conversion platform, a deviation adjusting device mounted on the jacking and fixing device, a component holding device erected on the deviation adjusting device, an operation platform arranged on the periphery of the top conversion platform and a ladder mounted on one side of the operation platform.
The bottom conversion beam is installed on the structure girder through a plurality of coupling assembling, and every coupling assembling all includes two U-shaped anchor rings of package on the structure girder and places the anchor board at bottom conversion beam upper surface, and U-shaped anchor ring top all anchors on the anchor board, and two U-shaped anchor rings are located the both sides of bottom conversion beam respectively.
The temporary support frame body is formed by connecting a plurality of temporary supports from the top down in sequence, each temporary support comprises a standard joint and a non-standard joint, each temporary support comprises four vertical connecting columns, horizontal connecting rods are arranged between the upper ends and the lower ends of two adjacent vertical connecting columns, X-shaped reinforcing support rods are arranged between the two adjacent vertical connecting columns, the top and the bottom of each vertical connecting column are respectively provided with a butt joint end socket plate, a plurality of side face connecting lug plates are uniformly distributed on the upper end and the lower end of the side wall of each vertical connecting column in a circumference mode, stiffening rib plates are arranged on the corresponding side face connecting lug plates, the butt joint end socket plates between the two adjacent temporary supports are fixedly connected through bolts and double nuts, the corresponding side face connecting lug plates are fixedly connected, the butt joint end socket plates at the bottom of the temporary support at the lowermost end are detachably connected with the bottom conversion beam through bolts and double nuts, and the butt joint end socket plates at the tops of the temporary supports at the uppermost ends are detachably connected with the top conversion platform bolts and the double nuts.
The top conversion platform is a field-shaped platform structure formed by welding a peripheral platform main beam and an internal platform secondary beam, and anti-falling safety nets are arranged at the bottoms of the platform main beam and the platform secondary beam in hollowed areas.
Jacking and fixing device are including the fixed stand of roof beam along beam in centre jack bottom sprag stand and both sides, and the secondary beam top corresponds jack bottom sprag stand, all is equipped with spacing installation component along the fixed stand of roof beam, and spacing installation component is including the spacing angle steel of four circumference equipartitions of welding at the secondary beam top, jack bottom sprag stand, peg graft between four spacing angle steel that correspond along the fixed stand of roof beam, jack bottom sprag stand top circumference welding has a plurality of spacing steel sheet and peg graft between the spacing steel sheet and install the jack, is equipped with backing plate or backing up bench along the fixed stand top of roof beam.
The deflection adjusting device comprises a deflection adjusting lower seat plate and a deflection adjusting upper seat plate, the deflection adjusting lower seat plate is arranged at the top of a jack, a base plate or a heightening stool, a limit ring is arranged on a jack post corresponding to the jack at the bottom of the deflection adjusting lower seat plate, a mounting seat is arranged at the middle position of the top of the deflection adjusting lower seat plate, a hemispherical groove is arranged at the top of the mounting seat, a steel rod is fixedly arranged at the middle position of the bottom of the deflection adjusting upper seat plate, the bottom of the steel rod is of a hemispherical structure, the hemispherical structure of the bottom of the steel rod is arranged in the hemispherical groove at the top of the mounting seat, a plurality of reinforcing inclined plates are uniformly distributed on the circumference between the side wall of the steel rod and the bottom of the deflection adjusting upper seat plate, four deflection adjusting components are arranged at four corners between the top of the deflection adjusting lower seat plate and the bottom of the deflection adjusting upper seat plate, the deflection adjusting components comprise screw sleeves welded at the top of the deflection adjusting lower seat plate and spherical caps welded at the bottom of the deflection adjusting upper seat plate, ball screws are arranged in the screw sleeves in threads, the ball screws are arranged at the top of the spherical caps, the hemispherical structure is arranged inside the spherical caps, square steel plates are fixedly arranged at the upper ends of the ball screws, a plurality of deflection adjusting operation rods are arranged on the outer walls of the square steel plates, and a plurality of stiffening angle plates are uniformly distributed between the screw sleeves and the outer walls of the spherical caps.
The component bond wrapping device comprises a lower fixing plate and an upper fixing plate, wherein connecting seats are arranged on two sides of the bottom of the lower fixing plate and fixed on the top of the deviation adjusting upper seat plate through connecting seats and connecting bolts, the upper fixing plate comprises two parts, the lower fixing plate and the butt joint end of the upper fixing plate are provided with first connecting lug plates and corresponding first connecting lug plates which are connected through bolts, second connecting lug plates and corresponding second connecting lug plates which are arranged between the two parts of the upper fixing plate are connected through bolts, and anti-skid rubber pads are arranged on the inner walls of the lower fixing plate and the upper fixing plate.
The operation platform comprises a platform body arranged on the periphery of the top conversion platform, enclosure rails are arranged on the periphery of the upper surface of the platform body, and an operation panel is arranged on the upper surface of the platform body.
The low-carbon construction method of the temporary supporting device suitable for the heavy assembly type components comprises the following specific steps:
s1, selecting supporting points:
s11, determining the unit weight M of the supported assembled component according to the section of the supported assembled component, and determining the dead weight G=M×L of the supported assembled component according to the axial span L of the supported assembled component;
s12, selecting 2 times of dead weight G, determining the axial compressive bearing capacity sigma=2G/4A=0.5G/A of the temporary support frame body, and determining the number of temporary supports of the temporary support frame body according to an empirical formula n=sigma/0.7f; wherein A is the cross section area of a single vertical connecting column of the temporary support frame body, and f is the steel strength design value of the temporary support frame body;
S13, assuming that n support points are adopted, the middle span is l=L/n+1, the cantilever continuous beam with the cantilever end length of 0.5L is adopted, when n=2, the cantilever continuous beam is a cantilever simply supported beam, 1.2 times of dead weight is selected,checking deflection of supported member
Figure SMS_1
Wherein the moment of inertia of the supported component +.>
Figure SMS_2
；
S14, optimizing the positions of the supporting points according to the calculation result and the site construction conditions;
s2, determining the setting height of the temporary support frame body and the setting height of the jacking and fixing device:
s21, calculating the design height H of the temporary support frame according to the CAD drawing 2 =supported fabricated component upper beam bottom elevation H Upper layer -supported fabricated component underbeam top elevation H Lower layer ；
S22, selecting 1.2 times of the self weight G of the supported member 0 =m×l, L is the distance between the support points, l=l/n+1, determining the amount of compressive deformation of the temporary support frame
Figure SMS_3
；
S23, setting the height from the upper surface of the lower fixing plate to the bottom of the whole supporting device to be
Figure SMS_4
The height of the bottom conversion beam is +.>
Figure SMS_5
The height of the top conversion platform is +.>
Figure SMS_6
The initial state height of the deviation adjusting device is +.>
Figure SMS_7
The thickness of the lower fixing plate of the component holding device is B, and the height of the jacking and fixing device is +.>
Figure SMS_8
The temporary support frame body is provided with a height>
Figure SMS_9
；
S24, according to
Figure SMS_10
Determining the height of the temporary support frame and the height of the jacking and fixing device; according to the height of the temporary support frame body, the number of standard knots, the number of non-standard knots and the specification are further determined;
S3, structural girder stress analysis and deepening design treatment under the bottom conversion girder:
s31, simplifying the bottom conversion beams and the structural main beams into single-span beams with fixed beam ends, wherein the structural main beams under each bottom conversion beam adopt a concentrated force P=1.5G Upper part /4≈0.4G Upper part Simplification;
s32, checking and calculating stress condition of structural main beam under bottom conversion beam
Figure SMS_11
，/>
Figure SMS_12
，
Figure SMS_13
Wherein->
Figure SMS_14
For the moment of inertia of the structural girder, y corresponding to sigma is taken as the maximum distance from the extreme edge of the structural girder to the neutralization axis, sigma 1 The corresponding y is taken as the maximum distance from the junction of the structural girder flange and the web plate to the neutralization axis, t wB The width of the web plate of the structural girder, f and fv are respectively the design value of the tensile strength/compressive strength and the design value of the shearing strength of steel materials;
s33, at the junction of the structural main beam and the bottom conversion beam, constructional measures for preventing lateral deviation are adopted in the stage of deepening design: adding transverse stiffening ribs to the section steel beam; adopting haunching reinforcing measures for the reinforced concrete beam at the beam slab;
s4, measuring and positioning:
s41, determining the position of a temporary supporting point;
s42, determining the positions of the outer edge of the temporary support frame and the central line of the vertical connecting column;
s43, determining the placement position of the bottom conversion beam, and marking the upper part of the main structural beam below the bottom conversion beam with an ink line;
S44, determining the position of a supporting point of the supported member, and marking lines of 300mm and 500mm on two sides of the supporting point respectively;
s5, temporary support frame body installation:
s51, installing a bottom conversion beam on the structural main beam and anchoring;
s52, hoisting the temporary support frame body on the bottom conversion beam, welding the lug plate on the bottom conversion beam beside the lug plate connected to the side surface of the bottom of the temporary support frame body, and connecting the lug plate on the bottom conversion beam with the lug plate connected to the side surface of the bottom of the temporary support frame body in a mode of using a double steel plate as a connecting plate and a bolt;
s53, sequentially hoisting a standard section and a non-standard section of the upper temporary support frame body, fixedly bolting, using a steel plate as a connecting plate, and adopting bolts to fix the side surface connecting lug plates;
s54, hoisting a top conversion platform on the top of the temporary support frame body and fixing the top conversion platform;
s55, preparing 1.2 times G 0 The sand bags or the balancing weights are gradually added to the upper part of the top conversion platform for prepressing; or a water tank with equal weight can be adopted, and after being hoisted in place, water is gradually added to load and prepressing;
s56, unloading the pre-pressed sand bags or the balancing weights and water, and hoisting the operation platform on the top of the temporary support frame;
s57, installing a jack bottom supporting upright post in the middle of the top conversion platform, fixing the jack, and adjusting to a zero extension state; mounting beam fixing upright posts on two sides of the beam along direction;
S58, installing a deviation adjusting device on the upper portion of the jack, and setting the deviation adjusting device in an initial state, namely, arranging a lower fixing plate of a component holding device on the deviation adjusting device, wherein the length of a thread of a four-corner ball screw is half of that of the external leakage, and the length of the thread of each ball screw is equal;
S59the plunger is lifted by the extension of the jack, the top of the center position of the lower fixing plate of the control component holding and wrapping device is positioned at
Figure SMS_15
Elevation position of (2); if the jack stroke is insufficient, a heightening stool and a backing plate can be added for compensation, and the measure is not needed in the non-special situation;
s510, installing a heightening stool, a backing plate and a wooden wedge on a beam fixing upright post to ensure the stability of the deviation adjusting device;
s6, installing a supported member:
s61, an anti-slip rubber pad is arranged at the middle and the end parts of the lower fixing plate of the component holding and wrapping device, so that the anti-slip effect is achieved, and the protection of finished products at four corners of a supported component is ensured;
s62, hoisting the supported assembly type component to a designated position through a hoisting machine, and ensuring that 300mm lines on the beam side of the supported component are all arranged on the inner side of a lower fixing plate of the component holding and wrapping device;
s63, unhooking slowly to enable the lifting rope of the hoisting machinery to be in a single loose state or a full semi-loose state, and observing the installation condition of the supported member;
S64, an upper fixing plate of the mounting member holding device is screwed and fixed with a lower fixing plate by bolts;
s65, when curvatures or angles of two ends of the torsion type component are different, the movement of the component is limited after the lower fixing plate and the upper fixing plate are screwed, so that component holding and wrapping devices of inner side supporting points can be screwed, the component holding and wrapping devices of other supporting points are not provided with anti-skid rubber pads, bolts of the lower fixing plate and the upper fixing plate are not screwed, and the supported component can be freely stretched outwards;
s7, adjusting the deviation adjusting device to change the posture of the supported member:
the four ball screw rods of the deviation adjusting device are adjusted by connecting the deviation adjusting operation rods on the ball screw rods through a rotating spanner;
the four ball screw rods are respectively defined as A number, B number, C number and D number according to the clockwise direction;
s71, firstly, determining adjustment displacement values of four ball screw rods of the deviation adjusting device:
front and back ball screw rods: projection distances of A number and B number, C number and D number are
Figure SMS_16
；
Left and right ball screw rods: projection distances of A and D, B and C are
Figure SMS_17
；
The interval between every two adjacent threads of the ball screw is
Figure SMS_18
；
Is known to have a longitudinal slope in the beam direction of
Figure SMS_19
The method comprises the steps of carrying out a first treatment on the surface of the The transverse gradient of the vertical beam direction is +.>
Figure SMS_20
；
The adjustment displacement value of the ball screw rod A is determined as follows:
Figure SMS_21
；
The adjustment displacement value of the ball screw rod number B is determined as follows:
Figure SMS_22
；
the adjustment displacement value of the ball screw with the number C is determined as follows:
Figure SMS_23
；
the adjustment displacement value of the ball screw with the number D is determined as follows:
Figure SMS_24
；
s72, adjusting the longitudinal gradient of the beam: respectively and simultaneously rotate the ball screw rod with the number A and the number B in opposite directions
Figure SMS_25
A ring; then, the ball screw rod of the ball screw C and the ball screw rod of the ball screw D are respectively rotated in opposite directions at the same time>
Figure SMS_26
A ring;
s73, adjusting the transverse gradient of the beam: respectively and simultaneously rotate the ball screw rod A and the ball screw rod D in opposite directions
Figure SMS_27
A ring; then, the ball screw rod of the ball screw B and the ball screw rod of the ball screw C are respectively rotated in opposite directions at the same time>
Figure SMS_28
A ring;
s74, adjusting the ball screw rods of each group simultaneously, wherein the rotation turns are the same;
s8, connecting and fixing components:
s81, after the assembly type components are temporarily connected and fixed, removing a lifting rope connected with the hoisting machinery;
s82, performing formal connection of the assembled components and the main body structure, wherein the formal connection comprises welding, bolt connection and bolt welding combined connection;
s83, after a supported member is connected with a main body structure, on the temporary supporting device, a door type movable support is additionally arranged on the upper part of the temporary supporting device by using an operation platform as a working platform, lifting equipment is adopted to lift an upper chord member of the truss, and after the upper chord member is connected with the main body structure, the temporary supporting device is slowly unhooked and a lifting rope is taken off;
S84, sequentially installing an overhanging main beam, an outer ring beam and an inner secondary beam to form a whole;
s9, unloading the structure and removing the temporary supporting device
S91, removing an upper fixing plate of the component holding and wrapping device;
s92, dismantling a backing plate or a heightening stool on the beam fixing upright post;
s93, following the principle of big before small, long before short, heavy before light, unloading the temporary supporting device of the member with longer overhanging span and larger dead weight, and unloading the temporary supporting device of the member with smaller overhanging span and smaller dead weight;
s94, during unloading, according to the principle that grading is symmetrical, the lifting pressure of a jack is controlled to be main, the unloading amount is controlled to be auxiliary, the supporting pressure after the installation is recorded before the unloading, and the unloading is respectively divided into 70%, 30% and 0 for three times, wherein the unloading amount is controlled within 50mm each time; the outer temporary supporting points are unloaded preferentially during unloading, and the inner temporary supporting points are unloaded afterwards; the temporary supporting point pressure of all the components reaches 30% of the supporting pressure after the installation is completed, and then the final unloading is carried out;
s95, after unloading of all the components is completed, the jack is adjusted to be in a zero lifting state, and the jack is sequentially removed from top to bottom: the device comprises a lower fixing plate of a component holding device, a deviation adjusting device, an operation platform, a top conversion platform, a temporary support frame body and a bottom conversion beam; if the temporary supporting device is needed to be used in the field, the temporary supporting device can be removed by the grouping blocks according to the lifting capacity, so that the temporary supporting device is convenient to turn over.
The beneficial effects of the invention are as follows: the invention can effectively realize the accurate installation and positioning of the heavy assembly type component, ensures the low-carbon construction and the high-precision installation, and has safe and reliable structure and strong practicability.
Drawings
FIG. 1 is a front view of a temporary support device of the present invention;
FIG. 2 is a right side view of the temporary support device of the present invention;
FIG. 3 is a perspective view of the temporary support device of the present invention;
FIG. 4 is a schematic view of the connection of adjacent temporary supports of the temporary support frame of the present invention;
FIG. 5 is a perspective view of the lifting and fixing device, the deviation adjusting device and the component holding device of the present invention;
FIG. 6 is a schematic view of the structure of the lifting and fixing device and the deviation adjusting device of the present invention;
FIG. 7 is a schematic structural view of a ball screw of the present invention;
in the figure: 1-a bottom transfer beam; 2-temporary support frames; 3-top conversion platform; 4-lifting and fixing devices; 5-a deflection adjusting device; 6-means gripping means; 7-an operation platform; 8-climbing a ladder; 9-structural girders; 10-U-shaped anchor ring; 11-an anchor plate;
201-vertical connection column; 202-a horizontal connecting rod; 203-X-shaped reinforcing support bars; 204-butt joint end plates; 205-side connection ear plate; 206-stiffening rib plates;
301-a platform girder; 302-platform secondary beam; 303-an anti-falling object safety net;
401-jack bottom support columns; 402-fixing the uprights along the beam; 403-jack; 404-raising the stool;
501-deflection lower seat plate; 502-aligning the upper seat plate; 503-mounting seats; 504-steel rod; 505-reinforcing swash plate; 506-screw sleeve; 507-ball cap; 508-ball screw; 509-square steel plate; 5010—an offset lever; 5011-stiffening the corner plate;
601-lower fixing plate; 602-upper fixing plate; 603-a first connection lug; 604-a second connection ear;
701-a platform body; 702-guard rails; 703-an operation panel;
the embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
Detailed Description
The principles and features of the present invention are described below with reference to the drawings, the examples are illustrated for the purpose of illustrating the invention and are not to be construed as limiting the scope of the invention. The invention is more particularly described by way of example in the following paragraphs with reference to the drawings. The advantages and features of the present invention will become more apparent from the following description. It should be noted that the drawings are in a very simplified form and are all to a non-precise scale, merely for convenience and clarity in aiding in the description of embodiments of the invention.
It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When a component is considered to be "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
The invention is further illustrated by the following examples in conjunction with the accompanying drawings:
the temporary supporting device suitable for the heavy assembly type components comprises a bottom conversion beam 1 fixed on a structural main beam 9, a temporary supporting frame body 2 erected on the bottom conversion beam 1, a top conversion platform 3 installed on the temporary supporting frame body 2, a jacking and fixing device 4 erected on the top conversion platform 3, a deviation adjusting device 5 installed on the jacking and fixing device 4, a component holding device 6 erected on the deviation adjusting device 5, an operation platform 7 arranged on the periphery of the top conversion platform 3 and a ladder stand 8 installed on one side of the operation platform 7, as shown in fig. 1 to 3.
The bottom conversion beam 1 is used for replacing a temporary supporting foundation, the top conversion platform 3 is used for dispersing upper concentrated load, the deviation adjusting device 5 is used for being adjusted by supporting members and adjusting the aerial posture, the member holding device 6 is used for supporting the members and playing a limiting role, and the operating platform 7 and the ladder stand 8 are convenient to operate.
As shown in fig. 1 to 3, the illustrated bottom conversion beam 1 is usually provided by laying h-steel along the short span direction of the main beam 9 of the bottom structure. For the case of a larger span of the main girder 9 of the bottom structure, a beret girder can be used instead of the h-steel. The bottom conversion beam 1 is installed on the structural girder 9 through a plurality of connecting components, each connecting component comprises two U-shaped anchor rings 10 which are arranged on the structural girder 9 in a wrapping mode and an anchor plate 11 which is arranged on the upper surface of the bottom conversion beam 1, the tops of the U-shaped anchor rings 10 are anchored on the anchor plate 11, and the two U-shaped anchor rings 10 are respectively located on two sides of the bottom conversion beam 1. If the structural main beam 9 is in the form of a concrete beam plate, the sleeves need to be pre-embedded on the beam side in advance so as to be penetrated by the U-shaped anchor ring 10 at the later stage.
As shown in fig. 1 to 4, the temporary support frame body 2 is formed by sequentially connecting a plurality of temporary supports from top to bottom, the temporary support frame body 2 adopts cast iron or welding standard knots customized by the market, standard grids of 2500 x 2500, 2500 x 2000, 2500 x 1500, 2500 x 1000 are typically used.
Each temporary support comprises four vertical connecting columns 201, horizontal connecting rods 202 are arranged between the upper ends and the lower ends of two adjacent vertical connecting columns 201, X-shaped reinforcing support rods 203 are arranged between the two adjacent vertical connecting columns 201, butt joint seal plates 204 are arranged at the top and the bottom of each vertical connecting column 201, a plurality of side face connecting lug plates 205 are uniformly distributed on the upper ends and the lower ends of the side walls of each vertical connecting column 201 in a circumferential mode, and stiffening rib plates 206 are arranged corresponding to the side face connecting lug plates 205.
The temporary supports are connected with each other in a special double-connection mode, specifically, the butt joint end plates 204 between two adjacent temporary supports are fixedly connected with each other through bolts and double nuts, and the corresponding side face connecting lug plates 205 are fixedly connected with each other.
The butt joint end enclosure plate 204 at the bottom of the bottommost temporary support is detachably connected with the bottom conversion beam 1 through bolts and double nuts, and the butt joint end enclosure plate 204 at the top of the topmost temporary support is detachably connected with the top conversion platform 3 through bolts and double nuts. The temporary support frame body 2 can be connected with the bottom conversion beam and the top conversion platform 3 in a side connection mode, the lug plates are welded on the upper surface of the bottom conversion beam 2 and the bottom of the top conversion platform 3, and the lug plates 205 are connected with the bottom conversion beam 2 and the welding lug plates of the top conversion platform 3 in a side connection mode through common bolts.
As shown in fig. 1 to 3, the top conversion platform 3 is a field-shaped platform structure formed by welding a peripheral platform main beam 301 and an inner platform secondary beam 302, the platform main beam 301 and the platform secondary beam 302 can be i-shaped steel or H-shaped steel, the center distance between the outer side section steel is set according to the size of a temporary support, a web plate and a web plate are fully welded in a butt welding mode by adopting a T-shaped combined welding seam, a flange and a flange, stiffening ribs are welded at the other side of a welding part, and arc striking plates, leading-out plates and lining plates are arranged at all welding parts. In order to avoid falling of cutting steel plates, tools and the like, the top surface of the beam lower flange of the top conversion platform 3 is provided with a hollowed part between the main platform beam 301 and the secondary platform beam 302, and a diamond mesh with the interval of 2mm-5mm is used as an anti-falling object safety mesh 303.
As shown in fig. 1 to 3 and fig. 5 to 6, the lifting and fixing device 4 comprises a middle jack bottom supporting column 401 and two side beam fixing columns 402, the top of the secondary beam 302 corresponds to the jack bottom supporting column 401, the beam fixing columns 402 are provided with limit installation components, the limit installation components comprise limit angle steel uniformly distributed on four circumferences of the top of the secondary beam 302 in a welded mode, the function of guiding the jack bottom supporting column 401 to be in place and limiting the fixed jack bottom supporting column 401 and the beam fixing column 402 is achieved, the jack bottom supporting column 401 and the beam fixing column 402 are inserted between the corresponding four limit angle steel, a plurality of limit steel plates are welded on the circumference of the top of the jack bottom supporting column 401, a jack 403 is inserted between the limit steel plates, the limit steel plates play the roles of limiting the jack 403 to move and fix the lifting device, and a base plate or a pad bench 404 is arranged on the top of the beam fixing column 402.
The jack bottom support column 401 adopts H shaped steel or square steel both sides to cut open the back of polishing as required, welds the head board, according to the difference in height, can customize to standard specifications such as 300mm, 500mm, 700 mm.
After the beam fixing upright column 402 is cut into two sides by H-shaped steel or square steel for polishing, end plates are welded, and different standard specifications such as 300mm, 500mm, 700mm, 900mm and the like can be customized according to different heights.
When a gap is smaller between the standard specification of the beam fixing upright column 402 and the upper deviation adjusting device 5, filling the gap by adopting a base plate, and selecting wedge-shaped steel plates with different thickness and thin end parts according to the size of the gap by the base plate so as to be convenient for inserting the gap; when the gap is large, the pad stool 404 is used instead of the pad, and the pad stool 404 is welded by four 20mm thick steel plates.
As shown in fig. 1 to 3 and 5 to 7, the deflection unit 5 includes a deflection lower seat plate 501 and a deflection upper seat plate 502, and the deflection lower seat plate 501 and the deflection upper seat plate 502 are steel plates 25mm thick. The lower deviation seat plate 501 is arranged at the top of the jack 403, the backing plate or the heightening stool 404, and a limiting ring is arranged at the bottom of the lower deviation seat plate 501 corresponding to the jack column of the jack 403.
The middle position at the top of the deflection-adjusting lower seat plate 501 is provided with a mounting seat 503, the top of the mounting seat 503 is provided with a hemispherical groove, the middle position at the bottom of the deflection-adjusting upper seat plate 502 is fixedly provided with a steel rod 504, the diameter of the steel rod 504 is 40mm, the bottom of the steel rod 504 is of a hemispherical structure, the hemispherical structure at the bottom of the steel rod 504 is arranged in the hemispherical groove at the top of the mounting seat 503, a plurality of reinforcing inclined plates 505 are uniformly distributed on the circumference between the side wall of the steel rod 504 and the bottom of the deflection-adjusting upper seat plate 502, the middle part of the structure is a spherical support, and as the spherical support can be customized from the internet, according to the stress condition of an upper component, the spherical support with the weight of the upper component not less than 2 times and the smaller sliding friction coefficient is specially selected.
Four deflection adjusting components are arranged at four corners between the top of the deflection adjusting lower seat plate 501 and the bottom of the deflection adjusting upper seat plate 502, each deflection adjusting component comprises a screw rod sleeve 506 welded at the top of the deflection adjusting lower seat plate 501 and a ball cap 507 welded at the bottom of the deflection adjusting upper seat plate 502, a ball head screw rod 508 is arranged in the screw rod sleeve 506 in a threaded manner, the diameter of the ball head screw rod 508 is not lower than 35mm, the top of the ball head screw rod 508 is of a hemispherical structure and is arranged in the ball cap 507, a square steel plate 509 is fixedly arranged at the upper end of the ball head screw rod 508, a plurality of deflection adjusting operation rods 5010 are uniformly distributed on the outer wall of the square steel plate 509, and a plurality of stiffening angle plates 5011 are circumferentially arranged between the outer wall of the screw rod sleeve 506 and the deflection adjusting lower seat plate 501 and between the outer wall of the ball cap 507 and the deflection adjusting upper seat plate 502.
The ball screw 508 is used as a forward and reverse rotation input shaft, and numbers "upper left", "lower right", "upper right" are "A", "B", "C", "D", the ball surface of the ball screw 508 is arranged at the top of the ball screw 508, and the lower part of the ball screw 508 is provided with a spiral thread with a depth not less than 2mm. The ball cap 507 is welded with the deflection-adjusting upper seat plate 502, and the pits with the same shape and volume as the half ball heads are excavated, polished smooth and added with lubricating oil; the ball screw 508 is connected with the deflection adjusting lower seat plate 501 by adopting a screw sleeve 506 matched with threads, the inner diameter of the screw sleeve 506 is matched with the ball screw 508, and the wall thickness of the screw sleeve 506 is not less than 12mm. A square steel plate 509 with the side length of 50mm and the thickness of 12mm is welded at a position 40mm away from the top of the ball screw 508 and the bottom of the ball surface, and the inner side of the square steel plate 509 and the ball screw 508 are fully welded around in an angle welding mode; the four sides of the outer side of the square steel plate 509 are respectively and vertically welded with 4 round steel rods, namely the deflection adjusting operation rods 5010, and are respectively and clockwise marked with 0, 0+, "" and "-" respectively as positive (negative) rotation input devices, and the sections of the four corners 0 point to the same direction when the deflection adjusting device 5 is set to the initial position by adopting a rotary spanner to connect the deflection adjusting operation rods 5010 before hoisting the components and rotating the square steel plate 509.
As shown in figures 1 to 3 and 5,
the component bond-wrapping device 6 includes fixed plate 601 down, go up fixed plate 602, lower fixed plate 601 bottom both sides are equipped with the connecting seat and pass through the connecting seat, connecting bolt fixes at the accent and go up bedplate 502 top, go up fixed plate 602 and include two parts, go up fixed plate 601, go up fixed plate 602 butt joint end and be equipped with first engaging lug 603 and the first engaging lug 603 that corresponds and pass through bolted connection, go up corresponding second engaging lug 604 that is equipped with second engaging lug 604 and the second engaging lug 604 that corresponds between the two parts of fixed plate 602 and pass through bolted connection, lower fixed plate 601, the inner wall of last fixed plate 602 is equipped with anti-skidding rubber pad.
The inner walls of the upper fixing plate 602 and the lower fixing plate 601 are respectively blanked according to the cross section of the component (the left and right sides can be respectively expanded by 10mm for convenient installation), and are made of steel plates with the thickness of not less than 12 mm. Because of the specificity of the cross section of the members, for standard box-shaped or round tube, circular arc members, the cross sections of the upper fixing plate 602 and the lower fixing plate 601 can be set to be combined rectangular or combined circular; for the H-shaped cross-section member, the cross sections of the upper fixing plate 602 and the lower fixing plate 601 may be set to be a combined rectangle; for the T-shaped section and the trapezoid section, it is recommended that the sections of the upper fixing plate 602 and the lower fixing plate 601 are trapezoid sections, and since the upper fixing plate 602 is concave with a large upper part and a small lower part, the upper fixing plate 602 needs to be arranged as left and right half parts, and the upper fixing plate 602 and the lower fixing plate are integrally connected with each other by welding lugs and adopting common bolts outside the joint part. The upper fixing plate 602 and the lower fixing plate 601 are connected by welding the first connecting lug plate 603 outside and fastening by adopting common bolts, and at the moment, due to the action of the anti-skid rubber pad, the upper fixing plate 602 and the lower fixing plate 601 cannot be completely combined, and under the condition of ensuring the form of the components, gaps can be allowed. The middle part of the bottom of the lower fixing plate 601 is arranged so that the center of the deviation adjusting upper seat plate 502 of the deviation adjusting device 5 coincides with the center of the lower fixing plate 601, and a connecting seat is arranged at the bottom of the lower fixing plate 601 corresponding to the outer side position of the deviation adjusting upper seat plate 502 and is connected with the deviation adjusting upper seat plate 502 of the deviation adjusting device 5 through bolts. Because the common sectional form of the assembly type component has extremely strong repeatability, the deviation adjusting upper seat plate 502 and the component holding and wrapping device 6 can be connected into a whole, and the disassembly and the recycling can be performed after the engineering is finished.
As shown in fig. 1 to 3, the operation platform 7 includes a platform body 701 disposed at the periphery of the top conversion platform 3, enclosure rails 702 are disposed around the upper surface of the platform body 701, and an operation panel 703 is disposed on the upper surface of the platform body 701.
The platform body 701 is formed by welding 16-number H-shaped steel, the spacing between the H-shaped steel is 0.8m-1.2m, the welding of the web plate and the web plate adopts T-shaped combination welding, the welding of the flange and the flange adopts butt welding, and the quality of the welding seam is not lower than the second level; and an inclined corner reinforcing plate is arranged at the top of the I-steel with the number 16 on the inner side, is welded with the upper flange of the I-steel in an angle mode, and plays a role in fixing the operation platform 7 on the top conversion platform 3. The upper part of the No. 16I-steel adopts a patterned steel plate as an operation panel 703, and the patterned steel plate is fixed with the I-steel by screwing or welding screws. The outer I-steel top flange is provided with a shaping guard rail 702, the guard rail 702 adopts 60 multiplied by 4, and the bottom of the guard rail 702 is provided with a foot blocking plate with the height of 250 mm.
As shown in fig. 1 to 3, a steel ladder stand 8 is arranged on the outer side of the temporary support frame 2, and a fire-retardant safety dense mesh net is arranged as an anti-falling net by taking every three temporary supports as one section, so that falling accidents are avoided.
The low-carbon construction method of the temporary supporting device suitable for the heavy assembly type components comprises the following specific steps:
s1, selecting supporting points:
s11, determining the unit weight M of the supported assembled component according to the section of the supported assembled component, and determining the dead weight G=M×L of the supported assembled component according to the axial span L of the supported assembled component;
s12, selecting a weight G which is 2 times of the weight G, determining the axial compression bearing capacity sigma=2G/4A=0.5G/A of the temporary support frame body 2, and determining the number of temporary supports of the temporary support frame body 2 according to an empirical formula n=sigma/0.7f; wherein A is the sectional area of a single vertical connecting column 201 of the temporary support frame body 2, and f is the steel strength design value of the temporary support frame body 2;
s13, assuming n supporting points, a cantilever continuous beam with a middle span of l=L/n+1 and a cantilever end length of 0.5L, selecting 1.2 times of dead weight for the cantilever simple beam when n=2, and checking deflection of a supported member
Figure SMS_29
Wherein the moment of inertia of the supported component +.>
Figure SMS_30
；
S14, optimizing the positions of the supporting points according to the calculation result and the site construction conditions;
s2, determining the setting height of the temporary support frame body 2 and the setting height of the jacking and fixing device 4:
s21, calculating the design height H of the temporary support frame body 2 according to the CAD drawing 2 =supported fabricated component upper beam bottom elevation H Upper layer -supported fabricated component underbeam top elevation H Lower layer ；
S22, selecting 1.2 times of the self weight G of the supported member 0 =m×l, L is the distance between the support points, l=l/n+1, determining the amount of compressive deformation of the temporary support frame 2
Figure SMS_31
；
S23, the height from the upper surface of the lower fixing plate 601 to the bottom of the whole supporting device is
Figure SMS_32
The height of the bottom conversion beam 1 is +.>
Figure SMS_33
The height of the top conversion platform 3 is +.>
Figure SMS_34
The initial state height of the deviation adjusting device 5 is +.>
Figure SMS_35
The lower fixing plate 601 of the component holding device 6 has a thickness B and the lifting and fixing device 4 has a height +.>
Figure SMS_36
The temporary support frame body 2 is provided with a height +>
Figure SMS_37
；
S24, according to
Figure SMS_38
Determining the height of the temporary support frame 2 and the height of the lifting and fixing device 4; according to the height of the temporary support frame body 2, the number of standard knots, the number of non-standard knots and the specification are further determined;
s3, stress analysis and deepening design treatment of the structural main beam 9 under the bottom conversion beam 1:
s31, simplifying the bottom conversion beams 1 and the structural main beams 9 into single-span beams with fixed beam ends, wherein the structural main beams 9 under each bottom conversion beam 1 adopt a concentrated force P=1.5G Upper part /4≈0.4G Upper part Simplification;
s32, checking and calculating stress conditions of the structural main beam 9 under the bottom conversion beam 1
Figure SMS_39
，/>
Figure SMS_40
，/>
Figure SMS_41
Wherein->
Figure SMS_42
For the moment of inertia of the structural girder 9, y corresponding to σ is taken as the maximum distance from the extreme edge of the structural girder 9 to the neutralization axis, σ 1 The corresponding y is taken as the maximum distance from the junction of the flange of the structural girder 9 and the web plate to the neutralization axis, t wB The width of the web plate of the structural girder 9, and f and fv are respectively the design value of the tensile strength/compressive strength and the design value of the shearing strength of steel;
s33, at the joint of the structural main beam 9 and the bottom conversion beam 1, constructional measures for preventing lateral deflection are adopted in the stage of deepening design: adding transverse stiffening ribs to the section steel beam; adopting haunching reinforcing measures for the reinforced concrete beam at the beam slab;
s4, measuring and positioning:
s41, determining the position of a temporary supporting point;
s42, determining the positions of the outer edge of the temporary support frame body 2 and the central line of the vertical connecting column 201;
s43, determining the placement position of the bottom conversion beam 1, and marking the upper part of the main structural beam 9 below the bottom conversion beam 1 with ink lines;
s44, determining the position of a supporting point of the supported member, and marking lines of 300mm and 500mm on two sides of the supporting point respectively;
s5, mounting the temporary support frame body 2:
s51, installing a bottom conversion beam 1 on a main structural beam 9 and anchoring;
s52, hoisting the temporary support frame body 2 on the bottom conversion beam 1, welding an ear plate on the bottom conversion beam 1 beside the side connecting ear plate 205 at the bottom of the temporary support frame body 2, and connecting the ear plate on the bottom conversion beam 1 with the side connecting ear plate 205 at the bottom of the temporary support frame body 2 in a mode of using double steel plates as connecting plates and bolts;
S53, sequentially hoisting standard joints and non-standard joints of the upper temporary support frame body 2, fixedly bolting, using a steel plate as a connecting plate, and fixing a side surface connecting lug plate 205 by using a bolt;
s54, hoisting and fixing the top conversion platform 3 on the top of the temporary support frame body 2;
s55, preparing 1.2 times G 0 The sand bags or the balancing weights are gradually added to the upper part of the top conversion platform 3 for prepressing; or a water tank with equal weight can be adopted, and after being hoisted in place, water is gradually added to load and prepressing;
s56, unloading the pre-pressed sand bags or the balancing weights and water, and hoisting the operation platform 7 on the top of the temporary support frame body 2;
s57, installing a jack bottom supporting column 401 in the middle of the top conversion platform 3, fixing a jack 403, and adjusting to a zero extension state; on both sides in the beam direction, beam-fixing columns 402 are installed;
s58, installing a deviation adjusting device 5 on the upper portion of a jack 403, and setting the deviation adjusting device 5 in an initial state, namely, the threaded length of a four-corner ball screw 508 is half of that of the external leakage, the threaded length of each ball screw 508 is equal, and installing a lower fixing plate 601 of a component holding and wrapping device 6 on the deviation adjusting device 5;
s59, lifting the plunger by extending the jack 403, wherein the top of the center position of the lower fixing plate 601 of the control member gripping device 6 is at
Figure SMS_43
Elevation position of (2); if the stroke of the jack 403 is insufficient, the step-up stool 404 and the base plate can be added for compensation, and the measure is not needed in the non-special case;
s510, installing a heightening stool 404, a backing plate and a wooden wedge on the beam fixing upright column 402 to ensure the stability of the deviation adjusting device 5;
s6, installing a supported member:
s61, an anti-slip rubber pad is arranged in the middle and at the end of the lower fixing plate 601 of the component holding device 6, so that the anti-slip effect is achieved, and the protection of finished products at four corners of a supported component is ensured;
s62, hoisting the supported assembly type component to a designated position through a hoisting machine, and ensuring that 300mm lines on the beam side of the supported component are all arranged on the inner side of a lower fixing plate 601 of the component holding and wrapping device 6;
s63, unhooking slowly to enable the lifting rope of the hoisting machinery to be in a single loose state or a full semi-loose state, and observing the installation condition of the supported member;
s64, an upper fixing plate 602 of the mounting member holding device 6 is screwed and fixed with a lower fixing plate 601 by bolts;
s65, when curvatures or angles of two ends of the torsion type component are different, the movement of the component is limited after the lower fixing plate 601 and the upper fixing plate 602 are screwed, so that the component holding and wrapping device 6 of the inner side supporting point can be screwed, the component holding and wrapping devices 6 of other supporting points are not provided with anti-skid rubber pads, bolts of the lower fixing plate 601 and the upper fixing plate 602 are not screwed, and the supported component can be freely stretched outwards;
S7, adjusting the deviation adjusting device 5 to change the posture of the supported member:
the four ball screw rods 508 of the deviation adjusting device are adjusted by connecting the deviation adjusting operation rod 5010 on the ball screw rods 508 through a rotating spanner;
the four ball screw 508 are respectively defined as A, B, C and D according to the clockwise direction;
s71, firstly, determining adjustment displacement values of four ball screw rods 508 of the deviation adjusting device 5:
front and rear ball screw 508: projection distances of A number and B number, C number and D number are
Figure SMS_44
；
Left and right ball screw 508: projection distances of A and D, B and C are
Figure SMS_45
；
The pitch of every two adjacent threads of the ball screw 508 is
Figure SMS_46
；
Is known to have a longitudinal slope in the beam direction of
Figure SMS_47
The method comprises the steps of carrying out a first treatment on the surface of the The transverse gradient of the vertical beam direction is +.>
Figure SMS_48
；
Determining the adjustment displacement of the ball screw 508 of the A-sizeThe values are:
Figure SMS_49
；
the adjustment displacement value of the ball screw 508 of the number B is determined as:
Figure SMS_50
；
the adjustment displacement value of the ball screw 508 of the number C is determined as:
Figure SMS_51
；
the adjustment displacement value of the ball screw 508 of the number D is determined as:
Figure SMS_52
；
s72, adjusting the longitudinal gradient of the beam: respectively and simultaneously rotate the ball screw 508 with the number A and the number B in opposite directions
Figure SMS_53
A ring; then, the ball screw 508 of the No. C and the No. D are rotated in opposite directions at the same time>
Figure SMS_54
A ring;
s73, adjusting the transverse gradient of the beam: respectively and simultaneously rotate the ball screw 508 with the number A and the number D in opposite directions
Figure SMS_55
A ring; then, the ball screw 508 of the ball screw B and the ball screw of the ball screw C are rotated in opposite directions at the same time>
Figure SMS_56
A ring; />
S74, adjusting the ball screw 508 of each group is carried out simultaneously, and the rotation turns are the same;
s8, connecting and fixing components:
s81, after the assembly type components are temporarily connected and fixed, removing a lifting rope connected with the hoisting machinery;
s82, performing formal connection of the assembled components and the main body structure, wherein the formal connection comprises welding, bolt connection and bolt welding combined connection;
s83, after a supported member is connected with a main body structure, on the temporary supporting device, using an operation platform 7, additionally arranging a door type movable support on the upper part as a working platform, hoisting an upper chord member of the truss by using hoisting equipment, and after the upper chord member is connected with the main body structure, slowly unhooking and removing a hoisting rope;
s84, sequentially installing an overhanging main beam, an outer ring beam and an inner secondary beam to form a whole;
s9, unloading the structure and removing the temporary supporting device
S91, removing an upper fixing plate 602 of the component holding and wrapping device 6;
s92, removing the backing plates or the heightening stools 404 on the beam fixing upright posts 402;
s93, following the principle of big before small, long before short, heavy before light, unloading the temporary supporting device of the member with longer overhanging span and larger dead weight, and unloading the temporary supporting device of the member with smaller overhanging span and smaller dead weight;
S94, during unloading, according to the principle that grading is symmetrical, the lifting pressure of the jack 403 is controlled to be main, the unloading amount is auxiliary, the supporting pressure after the installation is recorded before the unloading, and the unloading is respectively divided into 70%, 30% and 0 for three times, wherein the unloading amount is controlled within 50mm each time; the outer temporary supporting points are unloaded preferentially during unloading, and the inner temporary supporting points are unloaded afterwards; the temporary supporting point pressure of all the components reaches 30% of the supporting pressure after the installation is completed, and then the final unloading is carried out;
s95, after unloading all the components, the jack 403 is adjusted to be in a zero lifting state, and the jack is sequentially removed from top to bottom: the lower fixing plate 601 of the component holding and wrapping device 6, the deviation adjusting device 5, the operation platform 7, the top conversion platform 3, the temporary support frame 2 and the bottom conversion beam 1; if the temporary supporting device is needed to be used in the field, the temporary supporting device can be removed by the grouping blocks according to the lifting capacity, so that the temporary supporting device is convenient to turn over.
By the temporary supporting device and the low-carbon construction method thereof,
the invention can realize the construction of high-precision installation of heavy assembly type components and low-carbon construction by utilizing the conversion components to set up the temporary supporting device.
The invention can replace a temporary supporting foundation by the bottom conversion beam 1, reduces the erection height of the temporary supporting device, and simultaneously, the connection between the bottom conversion beam 1 and the structural main beam 9 is more stable, thereby not only increasing the stability of the temporary supporting device, but also reducing the steel consumption of the temporary supporting device, and being safe, reliable, economical and applicable; meanwhile, the method does not need reinforcement measures of adhesion, parallel connection or diagonal bracing, is simple and quick in construction, and saves construction period and cost.
The temporary supports among the temporary support frames 2 are connected in a double-connection mode, namely can be connected with the butt joint sealing plates 204 or can be connected with the side face connecting lug plates 205, so that the problem of installation caused by collision and component deformation is avoided, the construction is convenient, and the improvement of the installation precision is facilitated.
The invention fully utilizes the advantages of welding and bolts, and the interiors of the components are connected by welding, so that the integrity of each component is ensured; all the components are connected by bolts, so that the assembly, disassembly, replacement and maintenance in the later stage are convenient, and the realization of low-carbon construction is facilitated.
The invention adopts the deviation adjusting device 5 which can adjust the longitudinal slope and the transverse slope of the assembled component, on one hand, replaces the existing rough construction technology of 'chain pouring plus large hammer', and is convenient for the later high-altitude posture adjustment or deviation correction of the component; on the other hand, the hook can be detached in advance for the hoisting machine, and the utilization rate of the machine is improved.
The invention adopts the component holding and wrapping device 6 to play a role of fixing the assembled components, and cooperates with the deviation adjusting device 5 to realize the advanced unhooking of the hoisting machinery, thereby ensuring the construction safety, saving the construction cost of the customized wedge-shaped steel plate and achieving the purpose of creating effect and increasing income for projects.
The invention is provided with the operation platform 7 and the cat ladder 8 which are connected with the temporary support frame body 2, so that workers are prevented from standing on a hanging basket hung on a narrow space or a component at the top of the temporary support frame body 2 to operate, the working surface of the workers is enlarged, and the invention is beneficial to civilized construction and safe construction; the vertical application of the construction live load to the temporary support frame body 2 is ensured as much as possible, and the effect of the additional construction live load on the component and the temporary support frame body 2 is reduced.
The construction method matched with the temporary supporting device can realize the construction purposes of selecting supporting points by adopting an abstract calculation model, taking the self-compression deformation of the supporting device and the steel beam after rigidity coupling into consideration for empirical estimation, and constructing and setting the bottom conversion beam 1 and the main beam 9 of the lower structure, so as to realize efficient calculation and high-precision control.
While the invention has been described above with reference to the accompanying drawings, it will be apparent that the invention is not limited to the above embodiments, but is intended to cover various modifications, either made by the method concepts and technical solutions of the invention, or applied directly to other applications without modification, within the scope of the invention.

Claims (9)

1. Temporary support device suitable for heavy assembled component, a serial communication port, including fixing bottom conversion roof beam (1) on structure girder (9), set up temporary support frame body (2) on bottom conversion roof beam (1), install top conversion platform (3) on temporary support frame body (2), set up jacking and fixing device (4) on top conversion platform (3), install on jacking and fixing device (4) offset adjusting device (5), set up component holding device (6) on offset adjusting device (5), set up at top conversion platform (3) outlying operation platform (7) and install cat ladder (8) in operation platform (7) one side.
2. Temporary support device for heavy-duty assembled components according to claim 1, characterized in that the bottom conversion beam (1) is mounted on the structural main beam (9) by means of several connection assemblies, each connection assembly comprising two U-shaped anchor rings (10) wrapped on the structural main beam (9) and an anchor plate (11) placed on the upper surface of the bottom conversion beam (1), the tops of the U-shaped anchor rings (10) being anchored on the anchor plate (11), the two U-shaped anchor rings (10) being located on both sides of the bottom conversion beam (1), respectively.
3. The temporary supporting device suitable for heavy assembly type components according to claim 2, wherein the temporary supporting frame body (2) is formed by sequentially connecting a plurality of temporary supports from top to bottom, each temporary support comprises a standard joint and a non-standard joint, each temporary support comprises four vertical connecting columns (201), horizontal connecting rods (202) are respectively arranged between the upper ends and the lower ends of two adjacent vertical connecting columns (201), an X-shaped reinforcing supporting rod (203) is arranged between the two adjacent vertical connecting columns (201), a butt joint sealing plate (204) is respectively arranged at the top and the bottom of each vertical connecting column (201), a plurality of side face connecting lug plates (205) are respectively and uniformly distributed at the upper end and the lower end of the side wall of each vertical connecting column (201) in a circumferential mode, stiffening rib plates (206) are respectively arranged at the corresponding side face connecting lug plates (205), the butt joint plates (204) between the two adjacent temporary supports are fixedly connected through bolts and double nuts, the butt joint plates (204) at the bottom of the bottommost temporary supports are fixedly connected with the bottom of the bottom conversion beams (1) through the bolts and the double nuts, and the butt joint sealing plates (204) at the top and the top conversion plates (204) can be detached through the double nuts.
4. The temporary support device for heavy assembly type components according to claim 3, wherein the top conversion platform (3) is a field-shaped platform structure formed by welding a peripheral platform main beam (301) and an inner platform secondary beam (302), and the bottoms of the platform main beam (301) and the platform secondary beam (302) are provided with anti-falling safety nets (303) in hollowed-out areas.
5. The temporary supporting device suitable for heavy assembly type components according to claim 4, wherein the jacking and fixing device (4) comprises a middle jack bottom supporting column (401) and two side beam fixing columns (402), the tops of the secondary beams (302) are corresponding to the jack bottom supporting column (401), the beam fixing columns (402) are provided with limiting installation components, the limiting installation components comprise limiting angle steel uniformly distributed on four circumferences of the tops of the secondary beams (302) in a welding mode, the jack bottom supporting column (401) and the beam fixing columns (402) are inserted between the corresponding four limiting angle steel, a plurality of limiting steel plates are welded on the circumferences of the tops of the jack bottom supporting columns (401) and are inserted between the limiting steel plates to install a jack (403), and a backing plate or a heightening stool (404) is arranged on the tops of the beam fixing columns (402).
6. The temporary supporting device for heavy-duty assembly according to claim 5, wherein the deflection adjusting device (5) comprises a deflection lower seat plate (501) and a deflection upper seat plate (502), the deflection lower seat plate (501) is arranged at the top of a jack (403), a backing plate or a heightening stool (404), a limit ring is arranged at the bottom of the deflection lower seat plate (501) corresponding to a jack (403) jack, a mounting seat (503) is arranged at the middle position of the top of the deflection lower seat plate (501), a hemispherical groove is arranged at the top of the mounting seat (503), a steel rod (504) is fixedly arranged at the middle position of the bottom of the deflection upper seat plate (502), the bottom of the steel rod (504) is of a hemispherical structure, the hemispherical structure at the bottom of the steel rod (504) is arranged in the hemispherical groove at the top of the mounting seat (503), a plurality of reinforcing inclined plates (505) are uniformly distributed on the circumference between the side wall of the steel rod (504) and the bottom of the deflection upper seat plate (502), four deflection components are arranged at four corners of the bottom of the deflection upper seat plate (502), the deflection component comprises a sleeve (506) welded at the top of the deflection lower seat plate (501), a ball screw cap (506) and a screw cap (508) is welded at the bottom of the deflection upper seat plate (502), a screw cap (508) is arranged at the bottom of the ball cap (507), a square steel plate (509) is fixedly arranged at the upper end of the ball screw (508), a plurality of deflection adjusting operation rods (5010) are uniformly distributed on the outer wall of the square steel plate (509) in a circumferential manner, and a plurality of stiffening angle plates (5011) are uniformly arranged between the outer wall of the screw sleeve (506) and the deflection adjusting lower seat plate (501) and between the outer wall of the ball cap (507) and the deflection adjusting upper seat plate (502) in a circumferential manner.
7. The temporary supporting device suitable for heavy assembly type components according to claim 6, wherein the component holding device (6) comprises a lower fixing plate (601) and an upper fixing plate (602), wherein connecting seats are arranged on two sides of the bottom of the lower fixing plate (601) and are fixed on the top of the deflection-adjusting upper seat plate (502) through connecting seats and connecting bolts, the upper fixing plate (602) comprises two parts, the abutting end of the lower fixing plate (601) and the abutting end of the upper fixing plate (602) are provided with first connecting lug plates (603) and corresponding first connecting lug plates (603) through bolt connection, the two parts of the upper fixing plate (602) are correspondingly provided with second connecting lug plates (604) and corresponding second connecting lug plates (604) through bolt connection, and anti-skid rubber pads are arranged on the inner walls of the lower fixing plate (601) and the upper fixing plate (602).
8. The temporary support device for heavy-duty assembled components according to claim 7, wherein the operation platform (7) comprises a platform body (701) arranged at the periphery of the top conversion platform (3), enclosure rails (702) are arranged around the upper surface of the platform body (701), and an operation panel (703) is arranged on the upper surface of the platform body (701).
9. The low-carbon construction method for a temporary support device for heavy-duty fabricated components according to claim 8, characterized by the specific steps of:
s1, selecting supporting points:
s11, determining the unit weight M of the supported assembled component according to the section of the supported assembled component, and determining the dead weight G=M×L of the supported assembled component according to the axial span L of the supported assembled component;
s12, selecting 2 times of dead weight G, determining the axial compressive bearing capacity sigma= (2G)/(4A) =0.5G/A of the temporary support frame body (2), and determining the number of temporary supports of the temporary support frame body (2) according to an empirical formula n=sigma/0.7 f; wherein A is the sectional area of a single vertical connecting column (201) of the temporary support frame body (2), and f is the steel strength design value of the temporary support frame body (2);
s13, assume n branchesThe cantilever continuous beam with the supporting point, the middle span of l=L/(n+1) and the cantilever end length of 0.5L is selected as the cantilever simply supported beam with 1.2 times of dead weight when n=2, and the deflection of the supported member is checked
Figure QLYQS_1
Wherein the moment of inertia of the supported component +.>
Figure QLYQS_2
；
S14, optimizing the positions of the supporting points according to the calculation result and the site construction conditions;
s2, determining the setting height of the temporary support frame body (2) and the setting height of the jacking and fixing device (4):
S21, calculating the design height H of the temporary support frame body (2) according to the CAD drawing 2 =supported fabricated component upper beam bottom elevation H Upper layer -supported fabricated component underbeam top elevation H Lower layer ；
S22, selecting 1.2 times of the self weight G of the supported member 0 =m×l, L is the distance between the support points, l=l/(n+1), and the amount of compressive deformation of the temporary support frame (2) is determined
Figure QLYQS_3
；
S23, the setting height from the upper surface of the lower fixing plate (601) to the bottom of the whole supporting device is
Figure QLYQS_4
The height of the bottom conversion beam (1) is +.>
Figure QLYQS_5
The height of the top conversion platform (3) is +.>
Figure QLYQS_6
The initial state height of the deviation adjusting device (5) is +.>
Figure QLYQS_7
The thickness of the lower fixing plate (601) of the component holding device (6) is B, and the height of the jacking and fixing device (4) is +.>
Figure QLYQS_8
The temporary support frame body (2) is provided with a height +>
Figure QLYQS_9
；
S24, according to
Figure QLYQS_10
Determining the height of the temporary support frame body (2) and the height of the jacking and fixing device (4); according to the height of the temporary support frame body (2), the number of standard knots, the number of non-standard knots and the specification are further determined;
s3, stress analysis and deepening design treatment are carried out on the structural main beam (9) under the bottom conversion beam (1):
s31, simplifying the bottom conversion beams (1) and the structural main beams (9) into single-span beams with fixed beam ends, wherein the structural main beams (9) under each bottom conversion beam (1) adopt a concentrated force P=1.5G Upper part /4≈0.4G Upper part Simplification;
s32, checking stress conditions of the structural main beam (9) under the bottom conversion beam (1)
Figure QLYQS_11
，
Figure QLYQS_12
，/>
Figure QLYQS_13
Wherein->
Figure QLYQS_14
For the moment of inertia of the structural girder (9), y corresponding to sigma is taken as the maximum distance from the extreme edge of the structural girder (9) to the neutralization axis 1 The corresponding y is taken as the maximum distance from the joint of the flange of the main girder (9) of the structure and the web plate to the neutralization shaft, t wB The width of a web plate of the structural girder (9), and f and fv are respectively the design value of the tensile strength and the compressive strength of steel materials and the design value of the shearing strength;
s33, at the junction of the structural main beam (9) and the bottom conversion beam (1), constructional measures for preventing lateral deviation are adopted in the stage of deepening design: adding transverse stiffening ribs to the section steel beam; adopting haunching reinforcing measures for the reinforced concrete beam at the beam slab;
s4, measuring and positioning:
s41, determining the position of a temporary supporting point;
s42, determining the positions of the outer edge of the temporary support frame body (2) and the central line of the vertical connecting column (201);
s43, determining the placement position of the bottom conversion beam (1), and marking the upper part of the structural main beam (9) below the bottom conversion beam (1) with ink lines;
s44, determining the position of a supporting point of the supported member, and marking lines of 300mm and 500mm on two sides of the supporting point respectively;
S5, mounting the temporary support frame body (2):
s51, installing a bottom conversion beam (1) on the structural main beam (9) and anchoring;
s52, hoisting the temporary support frame body (2) on the bottom conversion beam (1), welding the lug plates on the bottom conversion beam (1) beside the side surface connecting lug plates (205) at the bottom of the temporary support frame body (2), and connecting the lug plates on the bottom conversion beam (1) with the side surface connecting lug plates (205) at the bottom of the temporary support frame body (2) in a mode of using double steel plates as connecting plates and bolts;
s53, sequentially hoisting standard joints and non-standard joints of the upper temporary support frame body (2), fixedly bolting, using a steel plate as a connecting plate, and fixing a side surface connecting lug plate (205) by adopting a bolt;
s54, hoisting a top conversion platform (3) on the top of the temporary support frame body (2) and fixing the top conversion platform;
s55, preparing 1.2 times G 0 The sand bags or the balancing weights are gradually added at the upper part of the top conversion platform (3) for prepressing; or adopting a water tank with equal weight, hoisting in place, and graduallyAdding water for loading and prepressing;
s56, unloading the pre-pressed sand bags or the balancing weights and water, and hoisting the operation platform (7) on the top of the temporary support frame body (2);
S57, installing a jack bottom supporting column (401) in the middle of the top conversion platform (3), fixing a jack (403) and adjusting to a zero extension state; mounting beam-fixing columns (402) on both sides in the beam direction;
s58, installing a deviation adjusting device (5) on the upper part of a jack (403), setting the deviation adjusting device (5) in an initial state, namely, arranging a four-corner ball screw (508) with a half of the screw thread length and equal screw thread length of each ball screw (508), and installing a lower fixing plate (601) of a component holding device (6) on the deviation adjusting device (5);
s59, lifting the plunger by extending the jack (403), wherein the top of the center position of the lower fixing plate (601) of the control component holding device (6) is positioned at
Figure QLYQS_15
Elevation position of (2); if the stroke of the jack (403) is insufficient, the lifting stool (404) and the backing plate can be increased for compensation, and the measure is not needed in the non-special case;
s510, installing a heightening stool (404), a backing plate and a wooden wedge on the beam fixing upright post (402) to ensure the stability of the deviation adjusting device (5);
s6, installing a supported member:
s61, an anti-slip rubber pad is arranged in the middle and at the end of a lower fixing plate (601) of the component holding and wrapping device (6), so that the anti-slip effect is achieved, and the protection of finished products at four corners of a supported component is ensured;
S62, hoisting the supported assembly type component to a designated position through a hoisting machine, and ensuring that 300mm lines on the beam side of the supported component are all arranged on the inner side of a lower fixing plate (601) of a component holding and wrapping device (6);
s63, unhooking slowly to enable the lifting rope of the hoisting machinery to be in a single loose state or a full semi-loose state, and observing the installation condition of the supported member;
s64, an upper fixing plate (602) of the mounting member holding device (6) is screwed and fixed with a lower fixing plate (601) by bolts;
s65, when curvatures or angles at two ends of the torsion type component are different, the movement of the component is limited after the lower fixing plate (601) and the upper fixing plate (602) are screwed, the component holding and wrapping device (6) of the inner side supporting point can be screwed, the component holding and wrapping devices (6) of other supporting points are not provided with anti-skid rubber pads, bolts of the lower fixing plate (601) and the upper fixing plate (602) are not screwed, and the supported component can be freely stretched outwards;
s7, adjusting the deviation adjusting device (5) to change the posture of the supported member:
the four ball screw rods (508) of the deviation adjusting device are adjusted by connecting the deviation adjusting operation rod (5010) on the ball screw rods (508) through a rotary wrench;
The four ball screw rods (508) are respectively defined as A number, B number, C number and D number according to the clockwise direction;
s71, firstly, determining adjustment displacement values of four ball screw rods (508) of the deviation adjusting device (5):
front and back ball screw rods (508): projection distances of A number and B number, C number and D number are
Figure QLYQS_16
；
Left and right ball screw rods (508): projection distances of A and D, B and C are
Figure QLYQS_17
；
Every two adjacent screw thread intervals of the ball screw rod (508) are
Figure QLYQS_18
；
Is known to have a longitudinal slope in the beam direction of
Figure QLYQS_19
The method comprises the steps of carrying out a first treatment on the surface of the The transverse gradient of the vertical beam direction is +.>
Figure QLYQS_20
；
The adjustment displacement value of the ball screw rod (508) of the No. A ball is determined as follows:
Figure QLYQS_21
；
the adjustment displacement value of the ball screw rod (508) of the number B is determined as follows:
Figure QLYQS_22
；
the adjustment displacement value of the ball screw rod (508) with the number C is determined as follows:
Figure QLYQS_23
；
the adjustment displacement value of the ball screw (508) with the number D is determined as follows:
Figure QLYQS_24
；
s72, adjusting the longitudinal gradient of the beam: respectively and simultaneously rotate the ball screw rod (508) with the number A and the number B in opposite directions
Figure QLYQS_25
A ring; then, the ball screw rods (508) of the ball screw heads C and D are respectively rotated in opposite directions>
Figure QLYQS_26
A ring;
s73, adjusting the transverse gradient of the beam: respectively and simultaneously rotate the ball screw rod (508) with the number A and the number D in opposite directions
Figure QLYQS_27
A ring; then, the ball screw rods (508) of the ball screw heads B and C are respectively rotated in opposite directions >
Figure QLYQS_28
A ring;
s74, adjusting the ball screw rods (508) of each group simultaneously, wherein the rotation turns are the same;
s8, connecting and fixing components:
s81, after the assembly type components are temporarily connected and fixed, removing a lifting rope connected with the hoisting machinery;
s82, performing formal connection of the assembled components and the main body structure, wherein the formal connection comprises welding, bolt connection and bolt welding combined connection;
s83, after a supported member is connected with a main body structure, on the temporary supporting device, a door type movable support is additionally arranged on the upper part of the temporary supporting device by using an operation platform (7) as a working platform, lifting equipment is adopted to lift an upper chord member of the truss, and after the upper chord member is connected with the main body structure, the upper chord member is slowly unhooked, and a lifting rope is taken off;
s84, sequentially installing an overhanging main beam, an outer ring beam and an inner secondary beam to form a whole;
s9, unloading the structure and removing the temporary supporting device
S91, removing an upper fixing plate (602) of the component holding and wrapping device (6);
s92, removing a backing plate or a heightening stool (404) on the beam fixing upright post (402);
s93, following the principle of big before small, long before short, heavy before light, unloading the temporary supporting device of the member with longer overhanging span and larger dead weight, and unloading the temporary supporting device of the member with smaller overhanging span and smaller dead weight;
S94, during unloading, according to the principle that grading is symmetrical, the lifting pressure of a jack (403) is controlled to be the main value, the unloading amount is controlled to be the auxiliary value, the supporting pressure after the installation is recorded before the unloading, and the unloading is divided into 70%, 30% and 0 for three times respectively, and the unloading amount is controlled within 50mm each time; the outer temporary supporting points are unloaded preferentially during unloading, and the inner temporary supporting points are unloaded afterwards; the temporary supporting point pressure of all the components reaches 30% of the supporting pressure after the installation is completed, and then the final unloading is carried out;
s95, after unloading of all the components is completed, the jack (403) is adjusted to be in a zero lifting state, and the jack is sequentially removed from top to bottom: the device comprises a lower fixing plate (601) of a component holding device (6), a deviation adjusting device (5), an operation platform (7), a top conversion platform (3), a temporary support frame body (2) and a bottom conversion beam (1); if the temporary supporting device is needed to be used in the field, the temporary supporting device can be removed by the grouping blocks according to the lifting capacity, so that the temporary supporting device is convenient to turn over.
CN202310334682.9A 2023-03-31 2023-03-31 Temporary supporting device suitable for heavy assembly type component and low-carbon construction method Pending CN116290916A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310334682.9A CN116290916A (en) 2023-03-31 2023-03-31 Temporary supporting device suitable for heavy assembly type component and low-carbon construction method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310334682.9A CN116290916A (en) 2023-03-31 2023-03-31 Temporary supporting device suitable for heavy assembly type component and low-carbon construction method

Publications (1)

Publication Number Publication Date
CN116290916A true CN116290916A (en) 2023-06-23

Family

ID=86803189

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202310334682.9A Pending CN116290916A (en) 2023-03-31 2023-03-31 Temporary supporting device suitable for heavy assembly type component and low-carbon construction method

Country Status (1)

Country Link
CN (1) CN116290916A (en)

Similar Documents

Publication Publication Date Title
CN110644664A (en) Fabricated building construction method and laminated slab construction supporting system
CN112411391A (en) Single-column capping beam steel pipe column Bailey beam construction supporting system and construction method thereof
CN112663501B (en) Upper-span existing line steel box girder structure and construction method
CN110965470A (en) Main tower cross brace structure system capable of bearing three-way load and construction method
CN111719705A (en) Large-span net rack jacking construction process
AU2013212529A1 (en) Automated formwork climbing system
CN114232805B (en) Construction method of ultrahigh-height large-span steel concrete beam hanging structure
KR100760435B1 (en) Adjustable temporary support
CN112942808A (en) Combined template construction method combining mechanized construction
CN212582721U (en) Bearing platform of tower crane for vertical tower of top plate of foundation garage
CN109339436B (en) Special-shaped concrete hole body assembled formwork supporting device
CN115162358B (en) Assembled steel-concrete combined support system for foundation pit engineering and construction method
CN218060397U (en) Fixing system for equipment installation
CN102619335A (en) Construction method of large-height small-sized cast-in-place concrete beam slab
CN116290916A (en) Temporary supporting device suitable for heavy assembly type component and low-carbon construction method
CN111485887B (en) Construction method of novel working well
CN111236631B (en) Semicircular concrete roof building supporting structure
CN113718955A (en) Construction method of giant asymmetric suspension pure steel structure tower
CN112942809A (en) Combined template assembling method capable of realizing mechanical construction
CN111188278A (en) Jig frame structure, jig frame assembly and construction method
CN220319075U (en) Guy rope hanging basket assembling platform
CN112813852B (en) Repairing and reinforcing method for bridge deck subsidence of in-service bridge
CN219218660U (en) Single-pile multi-column steel supporting structure
CN210712856U (en) Assembled foundation pit prestress supporting system
CN209905088U (en) Helicopter taking-off and landing platform capable of being quickly disassembled and assembled

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination