CN116201398B - A temporary support structure and method for heavier PC beams - Google Patents
A temporary support structure and method for heavier PC beamsInfo
- Publication number
- CN116201398B CN116201398B CN202310015109.1A CN202310015109A CN116201398B CN 116201398 B CN116201398 B CN 116201398B CN 202310015109 A CN202310015109 A CN 202310015109A CN 116201398 B CN116201398 B CN 116201398B
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G25/00—Shores or struts; Chocks
- E04G25/02—Shores or struts; Chocks non-telescopic
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- 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
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- 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
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- Engineering & Computer Science (AREA)
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- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
Abstract
本发明公开一种用于较重PC梁的临时支撑结构及方法，包括防倾件、稳定件、支撑件、固定件和平面外支撑，所述防倾件包括方钢管、螺栓杆、垫片和螺母，所述方钢管与螺栓杆之间焊接连接，用于防止PC梁侧翻，所述稳定件包括钢板、限位角钢、支撑角钢、连接螺栓，用于支撑上部PC梁，所述支撑件包括组合双矩形管、工字钢立柱、丝杠、调节螺母、圆钢管、横置工字钢、钢管斜撑和钢管柱，用于支撑上部构件，并将力传递至下部结构，所述固定件包括4个加劲肋、固定钢板、4个长螺杆及对应螺帽和2个紧固槽钢，用于和下部结构连接。该结构构造简单、支撑安全、操作方便、使用较少的支撑个数即可达到支撑较重PC梁的目的，且可以周转重复使用，使用率高。
The present invention discloses a temporary support structure and method for heavy PC beams, comprising an anti-roll member, a stabilizer, a support member, a fixing member, and an out-of-plane support. The anti-roll member comprises a square steel tube, a bolt rod, a washer, and a nut, the square steel tube and the bolt rod being welded together to prevent the PC beam from tipping over. The stabilizer comprises a steel plate, a limit angle steel, a support angle steel, and connecting bolts to support the upper PC beam. The support member comprises a composite double rectangular tube, an I-beam column, a lead screw, an adjusting nut, a round steel tube, a transverse I-beam, a steel pipe brace, and a steel pipe column to support the upper member and transmit force to the lower structure. The fixing member comprises four stiffening ribs, a fixing steel plate, four long screws and corresponding nuts, and two fastening channel steels for connection to the lower structure. This structure is simple in construction, provides safe support, is easy to operate, and can achieve the purpose of supporting heavy PC beams with a small number of supports. Furthermore, the structure can be reused and has a high utilization rate.
Description
Technical Field
The invention relates to the technical field of assembled concrete structure support, in particular to a temporary support structure and a temporary support method for a heavy PC beam.
Background
The assembled concrete structure, PC structure for short, refers to a concrete structure which is formed by taking prefabricated components as main stress components and assembling and connecting the prefabricated components. In the construction process of the traditional assembled concrete structure, PC beams are often directly erected on wall bodies at two ends or steel pipe square timber is erected at the lower parts as a supporting structure, but along with the continuous development of the assembled building, the PC beams are larger and larger in size and weight, construction conditions are more and more severe, the supporting quantity is required to be increased if the traditional supporting form is adopted, the lower operation space is reduced, if the attached lifting scaffold is adopted for construction, the attached lifting scaffold is required to be disconnected when the edge beam is longer and suspended, and if the traditional steel pipe square timber is adopted for supporting, the disconnected part of the attached lifting scaffold lacks protection and is difficult to operate.
Therefore, the temporary supporting structure and the temporary supporting method for the heavy PC beam are researched and developed on the basis of the prior art, the structure is simple in structure, safe to support, convenient to operate and high in utilization rate, the purpose of supporting the heavy PC beam can be achieved by using a small number of supports, and therefore when the attached lifting scaffold breaks, the support is arranged in the protection range of the attached lifting scaffold, and the support can be recycled and reused.
Disclosure of Invention
Aiming at the situation, in order to overcome the defects of the prior art, the invention provides a temporary supporting structure and a temporary supporting method for a heavy PC beam, solves the problems that the supporting weight is limited in the existing supporting mode, and when the side beam is longer and is suspended, the safety operation environment is not available, and effectively expands the application range.
The temporary supporting structure for the heavy PC beam and the method thereof comprise an anti-tilting member, a stabilizing member, a supporting member, a fixing member and an out-of-plane support, wherein the anti-tilting member comprises a square steel pipe, a bolt rod, a gasket and a nut, the square steel pipe is welded with the bolt rod and used for preventing PC Liang Cefan, the stabilizing member comprises a steel plate, a limiting angle steel, supporting angle steel and a connecting bolt and used for supporting the upper PC beam, the supporting member comprises a combined double rectangular pipe, an I-steel upright post, a screw rod, an adjusting nut, a round steel pipe, a transverse I-steel, a steel pipe diagonal brace and a steel pipe column and used for supporting an upper component and transmitting force to a lower structure, and the fixing member comprises 4 stiffening ribs, a fixed steel plate, 4 long screws, corresponding nuts and 2 fastening channel steels and is used for being connected with the lower structure.
Still further, in the stabilizer, welded connection between steel sheet and the supporting angle steel, spacing angle steel and supporting angle steel pass through connecting bolt connection, and supporting angle steel both ends set up rectangular type adjustable bolt hole, make things convenient for connecting bolt to pass through, and the position of spacing angle steel is conveniently adjusted to rectangular type adjustable bolt hole, makes upper portion PC roof beam more stable.
Furthermore, in the support piece, the combined double rectangular steel pipes are welded to two sides of the I-shaped steel upright post respectively by two square steel pipes, the upper part of the combined double rectangular steel pipes is higher than the I-shaped steel upright post by a certain distance, a certain gap is formed between the two square steel pipes at the higher part of the combined double rectangular steel pipes, a bolt rod in the anti-tilting piece penetrates through the gap in the middle of the combined rectangular pipe in the support piece, the bolt rod and the combined rectangular pipe are fastened together through a gasket and a nut, and the fastening length is determined according to the size of the supported PC beam.
Furthermore, in the support piece, the I-steel upright post is welded to one end of the upper part of the transverse I-steel, the transverse I-steel upright post and the anti-tilting piece are used for jointly fixing the PC beam, the PC beam is prevented from being overturned, the center of the lower part of the transverse I-steel is connected with the steel pipe column in a welded mode, the steel pipe column is used as a vertical support member, steel pipe diagonal braces are arranged on two sides of the steel pipe column for ensuring stable stress, and the upper parts of the steel pipe diagonal braces are respectively connected with two ends of the transverse I-steel in a welded mode.
Still further, form two holes between steel sheet, spacing angle steel and the support angle steel, square steel pipe in the piece of preventing leaning on passes the hole of one end of stabilizer, supports to the horizontal I-steel upper portion in the support piece, conveniently dismantles the PC roof beam, the I-steel stand in the support piece passes the hole of the other end of stabilizer and prevents leaning on piece, stabilizer and surrounds into a rectangle frame, and the PC roof beam passes and places in this rectangle frame, has guaranteed that the PC roof beam position is accurate, and stability is good.
Furthermore, the screw rod, the adjusting nut and the round steel tube are combined into a jacking structure, the two jacking structures are symmetrically arranged on two sides of the steel tube column and are connected with the steel tube column in a welding mode, and the jacking structure can be adjusted up and down to achieve the effect of adjusting elevation.
Still further, steel-pipe column lower extreme welded fastening steel sheet and stiffening rib, steel-pipe column are located fixed steel sheet central point put, and 4 stiffening ribs are "cross" font and arrange, and fixed steel sheet has accomplished structural member staple bolt with the lower part through long screw rod, nut, fastening channel-section steel and is connected, the fastening channel-section steel adds up two, adopts two fastening channel-section steel can reduce the construction degree of difficulty, and a long screw rod respectively is taken turns to every fastening channel-section steel both ends, adds up 4 long screw rods.
Furthermore, one end of the out-of-plane support is obliquely propped against the existing concrete main body structure through the embedded part, the other end of the out-of-plane support is connected with the steel pipe inclined strut, the embedded part is required to be fixed in place in advance when the concrete main body structure is poured, and the out-of-plane support can prevent the out-of-plane instability of the support system.
The invention also discloses a temporary support method for the heavy PC beam, which adopts the temporary support structure for the heavy PC beam, and comprises the following steps:
and firstly, pouring an external support anchoring embedded part in advance in the finished main body structural member for preventing out-of-plane instability.
And secondly, in the lower component which is constructed, fixing steel plates and fastening channel steel are respectively placed up and down, and the fixing steel plates and the fastening channel steel are connected into a whole through a long screw rod to form a hoop.
And thirdly, installing a supporting piece on the upper part of the fixed steel plate, synchronously installing an out-of-plane support, and connecting through a fastener to form a stable system.
And fourthly, the supporting piece penetrates through a hole at one end of the stabilizing piece, the stabilizing piece is placed on the upper portion of the supporting piece, and then the PC beam is placed on the upper portion of a steel plate in the stabilizing piece.
Fifthly, a square steel pipe end of the anti-tilting member is inserted into a hole at the other end of the stabilizing member, the position of the limiting angle steel is adjusted and fixed, the PC beam is tightly squeezed by the limiting angle steel, and a bolt rod in the anti-tilting member passes through and is fixed from a gap in the middle of the combined double rectangular pipe.
The invention has the technical effects that the PC beam is placed on the stabilizing piece, the supporting area of the PC beam can be increased, the lower part of the supporting piece adopts the steel pipe column and the inclined steel pipes at the two sides, and the supporting piece can bear larger load, and the instability risk is reduced, so that the requirement of safety and stability can be met for the larger and heavier PC beam by adopting the supporting structure and adopting fewer supporting quantity, thereby reducing the high-altitude work load, reducing the potential safety hazard and increasing the lower working space, and the supporting can be established in the protection range of the attached lifting scaffold when encountering the disconnected part of the attached lifting scaffold. The two sides of the upper part of the PC beam are respectively provided with the I-steel upright posts and the square steel pipes, so that the position accuracy of the PC beam is ensured. The lower part of the steel pipe column is connected with the anchor ear of the finished structural member by adopting two fastening channel steel, so that the operation is convenient. One end of the anti-tilting member is fixedly connected with the supporting member, the other end of the anti-tilting member is clamped into the hole of the stabilizing member, the anti-tilting member is convenient to install and detach, can be used in a turnover manner, and has high utilization rate.
Drawings
Fig. 1 is a three-dimensional schematic of the present invention.
Fig. 2 is a three-dimensional schematic view of the anti roll member of the present invention.
Fig. 3 is a three-dimensional schematic view of the stabilizer of the present invention (with spacing angle installed).
Fig. 4 is a three-dimensional schematic view of the stabilizer of the present invention (without the spacing angle installed).
Fig. 5 is a three-dimensional schematic of the support of the present invention.
Fig. 6 is a three-dimensional schematic of a fastener of the present invention.
In the figure, 1-1 parts of anti-tilting members, 1-2 parts of square steel pipes, 1-3 parts of bolt rods, 1-4 parts of gaskets, 1-4 parts of nuts, 2 parts of stabilizing members, 2-1 parts of steel plates, 2-2 parts of limiting angle steels, 2-3 parts of supporting angle steels, 2-4 parts of connecting bolts, 2-41 parts of adjustable bolt holes, 3 parts of supporting members, 3-1 parts of combined double rectangular pipes, 3-2 parts of I-shaped steel upright posts, 3-31 parts of lead screws, 3-32 parts of adjusting nuts, 3-parts of round steel pipes, 3-4 parts of transverse I-shaped steel, 3-5 parts of steel pipe inclined struts, 3-6 parts of steel pipe columns, 4 parts of fixing members, 4-1 parts of stiffening ribs, 4-2 parts of fixed steel plates, 4-3 parts of nuts, 4-4 parts of long screw rods, 4-5 parts of fastening channel steels, 5 parts of out-of-plane supports, 6 parts of pre-embedded parts, 7 parts of main body structures
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that, in the description of the present invention, terms such as "center", "upper", "lower", "horizontal", "vertical", "inner", "outer", "left", "right", and the like, which indicate directions or positional relationships, are based on the directions or positional relationships shown in the drawings, are merely for convenience of description, and do not indicate or imply that devices or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.
In addition, it should be noted that, in the description of the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, integrally connected, mechanically connected, electrically connected, directly connected, indirectly connected through an intermediate medium, or in communication between two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art according to the specific circumstances.
Example 1
Referring to fig. 1 to 6, a temporary supporting structure and method for a heavy PC beam includes an anti-tilting member 1, a stabilizing member 2, a supporting member 3, a fixing member 4 and an out-of-plane support 5, wherein the out-of-plane support 5 is obliquely supported on an existing concrete main structure 7 through an embedded member 6, the embedded member 6 is required to be fixed in place in advance during pouring of the concrete main structure 7, the anti-tilting member 1 includes a square steel pipe 1-1, a bolt shank 1-2, a spacer 1-3 and a nut 1-4, the square steel pipe 1-1 is welded with the bolt shank 1-2 for preventing PC Liang Cefan, the stabilizing member 2 includes a steel plate 2-1, a limit angle steel 2-2, a supporting angle steel 2-3, a connecting bolt 2-4 for supporting an upper PC beam, and the supporting member 3 includes a combined double steel pipe 3-1, an i-steel column 3-2, a lead screw 3-31, an adjusting nut 3-32, a round steel pipe 3-33, a cross steel 3-4, an inclined strut 3-5 and a nut 1-4, and a reinforcing member for transmitting the force to the upper and lower portion 4 and the lower portion of the steel pipe 4 and the reinforcing member 4 and the connecting the upper and the lower portion 4 to the supporting member 4 and the stiffening member 4 and the connecting member 4 and the upper and 4 and the reinforcing member 4.
On the basis of the embodiment, in the stabilizing piece 2, the steel plate 2-1 is welded with the supporting angle steel 2-3, the limiting angle steel 2-2 is connected with the supporting angle steel 2-3 through the connecting bolt 2-4, the two ends of the supporting angle steel 2-3 are provided with the strip-shaped adjustable bolt holes 2-41, the connecting bolt 2-4 is convenient to pass through, and the connecting bolt 2-4 can move left and right in the adjustable bolt holes 2-41, so that the position of the limiting angle steel 2-2 is adjusted, and the PC beam on the upper part is more stable.
On the basis of the embodiment, in the support member 3, the combined double rectangular steel pipe 3-1 is welded to two sides of the I-steel upright post 3-2 respectively by two square steel pipes with the length of 40mm multiplied by 40mm, the upper part of the combined double rectangular steel pipe is higher than the I-steel upright post 3-2 by a certain distance, a certain gap is formed between the two square steel pipes which are higher than the I-steel upright post 3-2, the bolt rod 1-2 in the anti-tilting member 1 penetrates through the gap in the middle of the combined rectangular pipe 3-1 in the support member 3, the bolt rod 1-2 and the combined rectangular pipe 3-1 are fastened together through the gasket 1-3 and the nut 1-4, the fastening length is determined according to the size of the supported PC beam, and the upper part of the combined double rectangular steel pipe is not stressed, so that the bolt rod 1-2 and the combined rectangular pipe 3-1 are connected through the nut 1-4 and the gasket 1-3, and the material waste is avoided.
On the basis of the embodiment, in the supporting piece 3, the I-steel upright post 3-2 is welded to the left side of the upper part of the transverse I-steel 3-4, the left side and the right side of the PC beam are fixed together with the anti-tilting piece 1, the PC beam is prevented from being overturned, the center of the lower part of the transverse I-steel 3-4 is welded with the steel pipe column 3-6, the steel pipe column 3-6 is used as a vertical supporting member, in order to ensure the stress stability of the steel pipe column, steel pipe diagonal braces 3-5 are arranged on two sides of the steel pipe column 3-6, and the upper parts of the steel pipe diagonal braces 3-5 are respectively welded with two ends of the transverse I-steel 3-4.
On the basis of the embodiment, the left hole and the right hole are formed among the steel plate 2-1, the limiting angle steel 2-2 and the supporting angle steel 2-3, the square steel pipe 1-1 in the anti-tilting member 1 penetrates through the hole on the right side of the stabilizing member 2 and is propped against the upper part on the right side of the transverse I-shaped steel 3-4 in the supporting member 3, so that a PC beam is convenient to detach, the I-shaped steel upright post 3-2 in the supporting member 3 penetrates through the hole on the left side of the stabilizing member 2 to form a rectangular frame with the anti-tilting member 1 and the stabilizing member 2, and the PC beam penetrates through the rectangular frame to be placed, so that the position of the PC beam is ensured to be accurate, the PC beam cannot shake left and right, and the stability is good.
On the basis of the embodiment, the screw rod 3-31, the adjusting nut 3-32 and the round steel pipe 3-33 form a jacking structure, the two jacking structures are symmetrically arranged on two sides of the steel pipe column 3-6 and are welded with the steel pipe column 3-6, and the jacking structure can be adjusted up and down to play a role in adjusting elevation.
On the basis of the embodiment, the steel pipe column 3-6 is welded with the fixed steel plate 4-2 and the stiffening ribs 4-1 at the lower end, the steel pipe column 3-6 is positioned at the center of the fixed steel plate 4-2, and the 4 stiffening ribs 4-1 are arranged in a cross shape, so that the contact area between the steel pipe column 3-6 and the fixed steel plate 4-2 can be increased, the supporting stability of the steel pipe column 3-6 is improved, steel materials are saved, the fixed steel plate 4-2 is connected with the lower completed structural member hoops through the long screw 4-4, the screw cap 4-3 and the fastening channel 4-5, and the two fastening channel 4-5 are totally used, and the two long screw 4-4 at the two ends of each fastening channel 4-5 are respectively installed in a bolt connection mode, so that the hoops can be independently completed by one worker, the two fastening channel 4-5 and the four long screw 4-4 enable the stress to be more uniform, and the uniform force is transferred to the lower completed structural member through the hoops.
Furthermore, one end of the out-of-plane support 5 is obliquely propped against the existing concrete main body structure 7 through the embedded part 6, the other end of the out-of-plane support 5 is connected with the steel pipe inclined strut 3-5, the embedded part 6 needs to be fixed in place in advance when the concrete main body structure 7 is poured, and the out-of-plane support 5 can prevent the out-of-plane instability of a support system.
Example two
With continued reference to fig. 1 to 6, the present embodiment provides a construction method for a temporary support structure for a heavy PC beam, using the temporary support structure for a heavy PC beam according to embodiment one, the method comprising the steps of:
First, the outer support anchoring embedments 6 are poured in advance in the finished main body structural member 7 for preventing out-of-plane instability.
And secondly, in the lower member which is constructed, fixing steel plates 4-2 and fastening channel steel 4-5 are respectively arranged at the upper part and the lower part, and are connected into a whole through a long screw 4-4 to form a hoop.
And thirdly, installing a supporting piece 3 on the upper part of the fixed steel plate 4-2, synchronously installing an out-of-plane support 5, and connecting through a fastener to form a stable system.
And fourthly, the supporting piece 3 passes through a hole at one end of the stabilizing piece 2, the stabilizing piece 2 is placed on the upper part of the supporting piece 3, and then the PC beam is placed on the upper part of the steel plate 2-1 in the stabilizing piece 2.
Fifthly, inserting the square steel tube 1-1 end of the anti-tilting member 1 into the hole at the other end of the stabilizing member 2, adjusting and fixing the position of the limiting angle steel 2-2, enabling the limiting angle steel to press the PC beam tightly, and enabling the bolt rod 1-2 in the anti-tilting member 1 to pass through and be fixed through the middle gap of the combined double rectangular tube 3-1.
According to the temporary supporting structure and the temporary supporting method for the heavy PC beam, the PC beam is placed on the stabilizing piece 2, so that the supporting area of the PC beam can be increased, the lower portion of the supporting piece is designed by adopting the steel pipe columns 3-6 and the inclined steel pipes 3-5 on the two sides, larger load can be borne, the instability risk is reduced, therefore, the requirement of safety and stability can be met for the larger heavy PC beam by adopting the supporting structure by adopting fewer supporting quantity, the high-altitude operation amount is reduced, the potential safety hazard is reduced, meanwhile, the lower operation space is increased, and therefore, when the attached lifting scaffold is disconnected, the supporting is only needed to be established in the protection range of the attached lifting scaffold. I-steel columns 3-2 and square steel pipes 1-1 are respectively arranged on two sides of the upper part of the PC beam, so that the position of the PC beam is ensured to be accurate. The lower parts of the steel pipe columns 3-6 are connected with the completed structural member hoops by adopting two fastening channel steel 4-5, so that the operation is convenient. One end of the anti-tilting member 1 is fixedly connected with the supporting member 3, the other end is clamped into the hole of the stabilizing member 2, the anti-tilting member is convenient to install and detach, can be used in a turnover manner, and has high utilization rate.
The present invention has been described in detail by way of specific embodiments and examples, but these should not be construed as limiting the scope of the invention in any way. Many variations and modifications may be made by one skilled in the art without departing from the principles of the invention, which is also considered to be within the scope of the invention.
Claims (2)
1. A temporary supporting structure for a heavy PC beam is characterized by comprising an anti-tilting member (1), a stabilizing member (2), a supporting member (3), a fixing member (4) and an out-of-plane support (5), wherein an I-shaped steel column (3-2) of the supporting member (3) is inserted into a hole at one end of the stabilizing member (2), the position of a limiting angle steel (2-2) on the supporting angle steel (2-3) is adjusted, the anti-tilting member is fixed by a connecting bolt (2-4), a square steel pipe (1-1) of the anti-tilting member (1) is inserted into the hole at the other end of the stabilizing member (2), the position of the limiting angle steel (2-2) on the supporting angle steel (2-3) is adjusted, the connecting bolt (2-4) is used for fixing, a bolt rod (1-2) of the anti-tilting member (1) is inserted into a gap of a combined double steel pipe (3-1), the bolt rod (1-2) and the combined double steel pipe (3-1) are fastened together by a gasket (1-3) and a nut (1-4), the length of the fastening member is fixed by the connecting bolt rod (1-2) and the rectangular steel pipe (3-1) to the supporting member (3) according to the size of the supporting member (3-4), then, stiffening ribs (4-1) are welded on the steel pipe columns (3-6) and the fixed steel plates (4-2) in a cross arrangement mode, one end of the out-of-plane support (5) is obliquely propped against the existing concrete main structure (7) through an embedded part (6), and the other end of the out-of-plane support is connected with a steel pipe diagonal bracing (3-5) fastener of the support part (3);
the anti-tilting member (1) comprises a square steel pipe (1-1), a bolt rod (1-2), a gasket (1-3) and a nut (1-4), wherein the square steel pipe (1-1) is welded with the bolt rod (1-2);
The stabilizing piece (2) comprises a steel plate (2-1), limiting angle steel (2-2), supporting angle steel (2-3) and connecting bolts (2-4), wherein the steel plate (2-1) is welded with the supporting angle steel (2-3), the limiting angle steel (2-2) is connected with the supporting angle steel (2-3) through the connecting bolts (2-4), strip-shaped adjustable bolt holes (2-41) are formed in two ends of the supporting angle steel (2-3) so as to facilitate adjustment of the positions of the limiting angle steel, two holes are formed among the steel plate (2-1), the limiting angle steel (2-2) and the supporting angle steel (2-3), a square steel pipe (1-1) in the anti-tilting piece (1) penetrates through the hole in one end of the stabilizing piece (2) and is propped against the upper part of a transverse I-shaped steel (3-4) in the supporting piece (3), the I-shaped steel upright (3-2) in the supporting piece (3) penetrates through the hole in the other end of the stabilizing piece (2) and the anti-tilting piece (1) and the rectangular frame, and the rectangular PC is placed in the rectangular frame;
the support piece (3) comprises a combined double rectangular pipe (3-1), an I-shaped steel column (3-2), a screw rod (3-31), an adjusting nut (3-32), a round steel pipe (3-4), transverse I-shaped steel (3-4), a steel pipe diagonal brace (3-5) and steel pipe columns (3-6), wherein the combined double rectangular pipe (3-1) is formed by welding two square steel pipes on two sides of the I-shaped steel column (3-2) respectively, a certain gap is formed between the upper part of the H-shaped steel column which is higher than the I-shaped steel column (3-2), one end of the upper part of the H-shaped steel column which is higher than the I-shaped steel column (3-2), the upper part of the I-shaped steel column which is welded to the upper part of the transverse I-shaped steel column (3-4) is fixed together with the anti-tilting piece (1), the lower part center of the transverse I-shaped steel (3-4) is welded with the steel pipe columns (3-6), the steel pipe columns (3-6) are used as vertical support members, the steel pipe diagonal braces (3-5) are arranged on two sides of the steel pipe columns (3-6), the upper parts of the diagonal brace (3-5) are welded on two sides of the steel columns (3-6), the upper parts of the I-5 are higher than the I-shaped steel column (3-2) than the upper part of the I-4, and the upper parts of the two ends of the transverse I-shaped steel column (3-4) are welded respectively, and the two ends of the upper parts (3-4) are welded to be welded with the upper ends of the upper parts of the two ends of the transverse I-4 The round steel pipes (3-33) form a jacking structure, two jacking structures are symmetrically arranged on two sides of the steel pipe column (3-6) and are welded with the steel pipe column (3-6), and the jacking structure can be adjusted up and down to play a role in adjusting elevation;
The fixing piece (4) comprises 4 stiffening ribs (4-1), a fixing steel plate (4-2), 4 long screw rods (4-4) and corresponding screw caps (4-3) and 2 fastening channel steel (4-5), the fixing steel plate (4-2) is in center alignment welding connection with the steel pipe column (3-6) of the supporting piece (3), the stiffening ribs (4-1) are arranged in a cross shape and are in welding connection with the steel pipe column (3-6) and the fixing steel plate (4-2), the fixing steel plate (4-2) is connected with the lower portion through the long screw rods (4-4), the screw caps (4-3) and the fastening channel steel (4-5) in total, each fastening channel steel (4-5) is provided with two long screw rods (4-4) at two ends, and the total of 4 long screw rods (4-4).
2. A temporary support method for a heavier PC beam, characterized by using a temporary support structure for a heavier PC beam as claimed in claim 1, comprising the steps of:
firstly, pouring an out-of-plane support (5) anchoring embedded part (6) in advance in a finished main body structure (7) component, wherein the out-of-plane support is used for preventing out-of-plane instability;
Secondly, in the lower component which is constructed, fixing steel plates (4-2) and fastening channel steel (4-5) are respectively arranged at the upper part and the lower part, and are connected into a whole through a long screw rod (4-4) to form a hoop;
Thirdly, installing a supporting piece (3) on the upper part of the fixed steel plate (4-2), synchronously installing an out-of-plane support (5), and connecting through a fastener to form a stable system;
fourthly, the supporting piece (3) passes through a hole at one end of the stabilizing piece (2), the stabilizing piece (2) is placed on the upper part of the supporting piece (3), and then the PC beam is placed on the upper part of a steel plate (2-1) in the stabilizing piece (2);
Fifthly, inserting the square steel tube (1-1) end of the anti-tilting member (1) into the hole at the other end of the stabilizing member (2), adjusting and fixing the position of the limiting angle steel (2-2) to tightly press the PC beam, and enabling the bolt rod (1-2) in the anti-tilting member (1) to pass through and be fixed from the middle gap of the combined double rectangular tube (3-1).
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| CN202310015109.1A CN116201398B (en) | 2023-01-06 | 2023-01-06 | A temporary support structure and method for heavier PC beams |
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| CN202310015109.1A CN116201398B (en) | 2023-01-06 | 2023-01-06 | A temporary support structure and method for heavier PC beams |
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| CN116201398B true CN116201398B (en) | 2025-09-30 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN219826301U (en) * | 2023-01-06 | 2023-10-13 | 中天建设集团有限公司 | Temporary supporting structure for heavier PC beam |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN204940911U (en) * | 2015-09-20 | 2016-01-06 | 叶成杰 | A kind of steel structure girder bracing or strutting arrangement |
| CN208072213U (en) * | 2018-02-12 | 2018-11-09 | 浙江交工集团股份有限公司 | A kind of steel box-girder installation temporary support |
| CN213448127U (en) * | 2020-09-24 | 2021-06-15 | 中交路桥华南工程有限公司 | Prefabricated T roof beam strutting arrangement that prevents toppling |
| CN113430914A (en) * | 2021-06-24 | 2021-09-24 | 王超 | Anti-overturning supporting device for T-shaped beam plate |
| CN217026688U (en) * | 2021-11-10 | 2022-07-22 | 云南省建设投资控股集团有限公司 | Temporary supporting device for prefabricated T-shaped beam |
| CN216577770U (en) * | 2021-12-22 | 2022-05-24 | 中电建路桥集团有限公司 | A strutting arrangement that prevents toppling for precast beam |
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| CN219826301U (en) * | 2023-01-06 | 2023-10-13 | 中天建设集团有限公司 | Temporary supporting structure for heavier PC beam |
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