CN106351462A - Temporary steel pipe supported prestressed reinforcement structure and construction method thereof - Google Patents

Temporary steel pipe supported prestressed reinforcement structure and construction method thereof Download PDF

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Publication number
CN106351462A
CN106351462A CN201610905524.4A CN201610905524A CN106351462A CN 106351462 A CN106351462 A CN 106351462A CN 201610905524 A CN201610905524 A CN 201610905524A CN 106351462 A CN106351462 A CN 106351462A
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CN
China
Prior art keywords
steel
steel pipe
plate
steel plate
hypomere
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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
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CN201610905524.4A
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Chinese (zh)
Inventor
吕文龙
马奎
黄志涛
彭发英
刘恋
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GUANGDONG JIANKE CONSTRUCTION ENGINEERING TECHNOLOGY DEVELOPMENT Co Ltd
Guangdong Provincial Academy of Building Research Group Co Ltd
Original Assignee
GUANGDONG JIANKE CONSTRUCTION ENGINEERING TECHNOLOGY DEVELOPMENT Co Ltd
Guangdong Provincial Academy of Building Research Group Co Ltd
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Application filed by GUANGDONG JIANKE CONSTRUCTION ENGINEERING TECHNOLOGY DEVELOPMENT Co Ltd, Guangdong Provincial Academy of Building Research Group Co Ltd filed Critical GUANGDONG JIANKE CONSTRUCTION ENGINEERING TECHNOLOGY DEVELOPMENT Co Ltd
Priority to CN201610905524.4A priority Critical patent/CN106351462A/en
Publication of CN106351462A publication Critical patent/CN106351462A/en
Pending legal-status Critical Current

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    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04GSCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G23/00Working measures on existing buildings
    • E04G23/02Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
    • E04G23/0218Increasing or restoring the load-bearing capacity of building construction elements

Abstract

The invention discloses a temporary steel pipe supported prestressed reinforcement structure and a construction method thereof. The reinforcement structure comprises a first support structure, wherein the first support structure is mainly composed of two steel pipes and a pair of steel plates, the two steel pipes are vertically arranged and are butted, prestress generaed by lifting is applied to the upper steel pipe which is positioned on the upper part, the lower steel pipe is positioned on the lower part, one steel plate is connected with a structural member on the top surface of a floor and is called an upper steel plate, the upper steel plate is fixed to the upper end of the upper steel pipe, the other steel plate is connected with a structural member on the bottom surface of the floor and is called a lower steel plate, and the lower steel plate is fixed to the lower end of the lower steel pipe. According to the temporary steel pipe supported prestressed reinforcement structure, the problem of support stress lag of an existing steel pipe can be solved, the arrangement is flexible, an application range is extended, normal operation of production equipment cannot be influenced during construction, the position of steel legs can be flexibly arranged according to actual conditions in the process of construction, the construction space is reasonably utilized, and additionally, the construction is facilitated.

Description

A kind of interim steel pipe support prestressed reinforcement structure and its construction method
Technical field
The present invention relates to Structures Reinforced Technique, in advance should particularly to a kind of interim steel pipe support being capable of flexible arrangement Power ruggedized construction, further relates to the construction method of this interim steel pipe support prestressed reinforcement structure.
Background technology
Building structure strengthening, as the term suggests be exactly the stability strengthening building structure.Warp during building structure strengthening The hypodynamic problem of post load bearing beam often can be run into, need by setting up interim steel pipe support to the framework being unsatisfactory for requirement for bearing capacity Post beam carries out part and the consolidation process such as underpins.
The construction of the interim steel pipe support of tradition is usually directly to need Support Position to set up interim steel pipe support.But, There is following defect in this mode directly setting up interim steel pipe support:
(1) steel pipe support stress is delayed, and support stress delayed can lead to structural elements produce slight deformation, it is unfavorable to cause Impact.
(2) the bottom of steel pipe support supports on the ground, therefore, it is impossible to directly arrange in the case of ground space deficiency Steel pipe support, so that the applicable situation of steel pipe support is very limited, construction inconvenience is it is impossible to be effectively ensured construction quality.
(3), if in carrying out interim steel pipe Construction of Supporting in Factory Building, production equipment is inevitably located at steel pipe support Side, construction when, production equipment need stop production, larger economic loss can be brought to enterprise.
Content of the invention
First purpose of the present invention is to provide that a kind of structure is simple, low cost of manufacture, easy construction, ensure that work The interim steel pipe support prestressed reinforcement structure of Cheng Zhiliang.
The above-mentioned purpose of the present invention is realized by following technical measures: a kind of interim steel pipe support prestressed reinforcement knot Structure it is characterised in that: it includes the first supporting construction, and described first supporting construction is mainly by two sections of steel pipes and a pair of steel plate group Become, described two sections of steel pipes are vertically arranged and dock, steel pipe above is epimere steel pipe, described epimere steel pipe is applied with and passes through The prestressing force that jacking produces, underlying steel pipe is hypomere steel pipe, and one of steel plate is used for the structure structure with floor top surface Part connects, referred to as upper steel plate, and this upper steel plate is fixed on the upper end of epimere steel pipe, and another block of steel plate is used for and floor bottom surface Structural elements connects, referred to as lower steel plate, and this lower steel plate is fixed on the lower end of hypomere steel pipe.
The epimere steel pipe of the present invention is applied with the prestressing force being formed by jacking, can solve existing steel pipe support well The delayed problem of stress, and, flexible arrangement of the present invention, greatly expand the scope of application of pre-stressed steel pipe temporary support. In addition, the set location of the present invention can avoid production equipment location according to on-site actual situations, will not in construction period The normal operation of impact production equipment, thus avoid bringing larger economic loss to enterprise;In work progress, steel cattle foot Set location can according to practical situation flexible arrangement, can while realizing rationally utilizing construction space convenient construction.This Bright structure is simple, low cost of manufacture, easy construction, ensure that construction quality.
As one embodiment of the present invention, described two sections of steel pipes pass through a pair of curved plate docking, and this is to arc-shaped steel The inner surface of plate is adapted with the outside wall surface of two sections of steel pipes, and this is symmetrically welded at the outer of two sections of steel pipe docking sites to curved plate On wall.
As one embodiment of the present invention, the length of described curved plate is more than or equal to 200mm, and this is to arc-shaped steel The distance between edges of boards of plate are 30~50mm.
As a modification of the present invention, have additional the second supporting construction, institute between described lower steel plate and hypomere steel pipe State the second supporting construction to be mainly made up of a pair of steel pipe, ribbed stiffener and H type steel, described lower steel plate is a pair, and this divides to lower steel plate It is not fixed on the lower end of steel pipe of described second supporting construction, the upper end of the steel pipe located at the second supporting construction for the described ribbed stiffener On the outer wall circumference of the lower end of hypomere steel pipe, the lower end of described hypomere steel pipe and ribbed stiffener thereon are fixed on described h jointly On the top flange of shaped steel, and the upper end of steel pipe of described second supporting construction and ribbed stiffener thereon are fixed on described H type jointly On the lower flange of steel.
As a kind of preferred implementation of the present invention, between the lower end of described epimere steel pipe and the upper end of hypomere steel pipe Distance is 0~5mm.
As one embodiment of the present invention, the length of the steel pipe of described second supporting construction is identical, described this under The thickness of steel plate is identical so that H type steel is to be horizontally disposed with.
Second object of the present invention is to provide a kind of construction party of above-mentioned interim steel pipe support prestressed reinforcement structure Method.
The above-mentioned purpose of the present invention is realized by following technical measures: a kind of above-mentioned interim steel pipe support prestressing force adds The construction method of fixing structure is it is characterised in that comprise the following steps:
(1) upper steel plate and lower steel plate are separately fixed on floor top surface and the structural elements of bottom surface;
(2) the upper end of epimere steel pipe is fixed on upper steel plate, and the lower end of hypomere steel pipe is fixed on lower steel plate, and on Duan Gangguan is located at the surface of hypomere steel pipe;
(3) adopt a pair of steel cattle foot and two blocks of vertical steel plates, wherein one side of two blocks of vertical steel plates is respectively welded at epimere On the outer wall of steel pipe, two blocks of vertical steel plates are to be arranged symmetrically, and another side of every block of vertical steel plate connects a steel cattle foot;
(4) the supporting steel plate fixing on the ground in the setting of the underface of each steel cattle foot, arranges 1,000 on supporting steel plate Jin top, applies prestressing force by jack jacking steel cattle foot to epimere steel pipe;
(5) after having applied prestressing force, by the upper end docking of the lower end of epimere steel pipe and hypomere steel pipe;
(6) remove jack, steel cattle foot and vertical steel plate, obtain interim steel pipe support prestressed reinforcement structure.
As one embodiment of the present invention, described step (5) in, the lower end of epimere steel pipe and hypomere steel pipe upper The distance between end is 0~5mm.
The above-mentioned purpose of the present invention can also be realized by following technical measures: a kind of interim steel pipe support prestressing force The construction method of ruggedized construction is it is characterised in that comprise the following steps:
(1) this is fixed on the structural elements of floor bottom surface to lower steel plate, then by a pair of steel pipe of the second supporting construction Lower end is separately fixed on lower steel plate;
(2) in this upper end outer wall circumference soldering ribbed stiffener to steel pipe of the second supporting construction, then upper end to steel pipe by this And ribbed stiffener thereon is welded on the lower flange of H type steel jointly;
(3) in the lower end outer wall circumference soldering ribbed stiffener of hypomere steel pipe, then by the lower end of hypomere steel pipe and ribbed stiffener thereon Jointly it is welded on the top flange of H type steel;
(4) it is arranged above upper steel plate in hypomere steel pipe, will upper steel plate be fixed on the structural elements of floor top surface, Again the upper end of epimere steel pipe is fixed on upper steel plate;
(5) adopt a pair of steel cattle foot and two blocks of vertical steel plates, wherein one side of two blocks of vertical steel plates is welded on epimere steel On the outer wall of pipe, two blocks of vertical steel plates are to be arranged symmetrically, and another side of each vertical steel plate connects a steel cattle foot;
(6) it is fixed on the supporting steel plate on loading end in the setting of the underface of each steel cattle foot, supporting steel plate arranges one Jack, applies prestressing force by jack jacking steel cattle foot to epimere steel pipe;
(7) after having applied prestressing force, by the upper end docking of the lower end of epimere steel pipe and hypomere steel pipe;
(8) remove jack, steel cattle foot and vertical steel plate, obtain interim steel pipe support prestressed reinforcement structure.
As one embodiment of the present invention, described loading end is the upper surface of the top flange of H type steel.
As another embodiment of the invention, described step (5) in, also adopt another pair steel cattle foot and in addition Two blocks of vertical steel plates, wherein one side of this two blocks vertical steel plates is welded on the outer wall of hypomere steel pipe, two blocks of vertical steel plates For being arranged symmetrically, another side of each vertical steel plate connects a steel cattle foot, the steel cattle foot on hypomere steel pipe and being located at Steel cattle foot on epimere steel pipe is up and down relatively;Described step (6) in, in the upper table of each the steel cattle foot on hypomere steel pipe Supporting steel plate is fixed on face, a jack is arranged on supporting steel plate, the steel cattle being located on epimere steel pipe by jack jacking Foot applies prestressing force to epimere steel pipe, and that is, described loading end is in the upper surface of the steel cattle foot on hypomere steel pipe.
Compared with prior art, the present invention has as follows a significantly effect:
(1) the present invention passes through jack jacking and applies prestressing force to epimere steel pipe, solves existing steel pipe support well and is subject to The delayed problem of power.
(2) the present invention has numerous embodiments, and therefore, the set location of the present invention can be avoided according to on-site actual situations Production equipment location, does not interfere with the normal operation of production equipment in construction period, thus avoiding bringing relatively to enterprise Big economic loss.
(3) the steel cattle foot of the present invention applies prestressed intermediary as to epimere steel pipe, and the position of its setting can be according to reality Border situation flexible arrangement, can while realizing rationally utilizing construction space convenient construction.
(4) flexible arrangement of the present invention, greatly expands the scope of application of pre-stressed steel pipe temporary support.
(5) present configuration is simple, low cost of manufacture, easy construction, ensure that construction quality.
Brief description
The present invention is described in further detail with specific embodiment below in conjunction with the accompanying drawings.
Fig. 1 is the structural representation (being not drawn into curved plate) of the embodiment of the present invention 1;
Fig. 2 is the structure perspective diagram that in the embodiment of the present invention 1, curved plate connects epimere steel pipe and hypomere steel pipe;
Fig. 3 is the structural representation (being not drawn into curved plate) in the embodiment of the present invention 1 work progress;
Fig. 4 is the structural representation (being not drawn into curved plate) of the embodiment of the present invention 2;
Fig. 5 is one of the structural representation in the embodiment of the present invention 2 work progress (being not drawn into curved plate);
Fig. 6 is two (being not drawn into curved plate) of the structural representation in the embodiment of the present invention 2 work progress.
Specific embodiment
Embodiment 1
As illustrated in fig. 1 and 2, it is a kind of interim steel pipe support prestressed reinforcement structure of the present invention, it includes the first support knot Structure, the first supporting construction is mainly made up of two sections of steel pipes and a pair of square plate, and the size of square plate should be according to actual needs And related current specifications, code etc. determine, steel pipe adopts seamless steel pipe, two sections of steel pipes are vertically arranged and dock, above Steel pipe is epimere steel pipe 1, and epimere steel pipe 1 is applied with the prestressing force producing by jacking, and underlying steel pipe is hypomere steel pipe 2, one of steel plate is used for being connected with the structural elements 16 of floor top surface, referred to as upper steel plate 3, and structural elements 16 is beam or plate Deng upper steel plate 3 is connected with beam or plate by chemical anchor bolts 18, and the size of chemical anchor bolts and number should be according to actual needs and related Current specifications, code etc. determine.This upper steel plate 3 is fixed on the upper end of epimere steel pipe 1, and another block of steel plate is used for and floor bottom The structural elements 17 in face connects, referred to as lower steel plate 4, and structural elements 17 is beam or plate etc., and lower steel plate 4 passes through chemical anchor bolts 18 and beam Or plate connects, this lower steel plate 4 is fixed on the lower end of hypomere steel pipe 2.
The distance between upper end of the lower end of epimere steel pipe 1 and hypomere steel pipe 2 is 0~5mm.In the present embodiment, epimere Steel pipe 1 and hypomere steel pipe 2 are docked by a pair of curved plate 5, and the length of curved plate 5 is more than or equal to 200mm.This is to arc The inner surface of steel plate 5 is adapted with the outside wall surface of epimere steel pipe 1 and hypomere steel pipe 2, and this is symmetrically welded at epimere to curved plate 5 In the outside wall surface of steel pipe 1 and hypomere steel pipe 2 docking site, this is 30~50mm to the distance between edges of boards of curved plate 5.
As shown in figure 3, the construction method of above-mentioned interim steel pipe support prestressed reinforcement structure, comprise the following steps:
(1) upper steel plate 3 and lower steel plate 4 are separately fixed on floor top surface and the structural elements of bottom surface;
(2) the upper end of epimere steel pipe 1 is fixed on upper steel plate 3, and the lower end of hypomere steel pipe 2 is fixed on lower steel plate 4, And epimere steel pipe 1 is located at the surface of hypomere steel pipe 2;
(3) adopt a pair of steel cattle foot 6 and two blocks of vertical steel plates 7, wherein one side of two blocks of vertical steel plates 7 is respectively welded at On the outer wall of epimere steel pipe 1, two blocks of vertical steel plates 7 are to be arranged symmetrically, and another side of every block of vertical steel plate 7 passes through high-strength bolt 19 one steel cattle foot 6 of connection;Should be according to actual needs with the number of the high-strength bolt 19 of steel plate and size for connecting steel cattle foot And correlation current specifications, code etc. determine.
(4) the supporting steel plate 8 fixing on the ground in the setting of the underface of each steel cattle foot 6, is arranged on supporting steel plate 8 One jack 9, applies prestressing force by jack 9 jacking steel cattle foot 6 to epimere steel pipe 1;The prestressing force that jack applies answers root According to being actually needed and related current specifications, code etc. determine.
(5) after having applied prestressing force, by the upper end docking of the lower end of epimere steel pipe 1 and hypomere steel pipe 2;Specifically adopt one Curved plate 5 is symmetrically welded on epimere steel pipe 1 and the outside wall surface of hypomere steel pipe 2 docking site, as shown in Figure 2.
(6) remove jack 9, steel cattle foot 6 and vertical steel plate 7, obtain interim steel pipe support prestressed reinforcement structure.
Embodiment 2
As shown in figure 4, the difference of the present embodiment and embodiment 1 is: increase between lower steel plate 4 and hypomere steel pipe 2 It is provided with the second supporting construction, the second supporting construction is mainly made up of a pair of steel pipe 12, ribbed stiffener 10 and H type steel 11, steel pipe adopts Seamless steel pipe, lower steel plate 4 is a pair, and this is separately fixed on the lower end of steel pipe 12 of the second supporting construction to lower steel plate 4, steel pipe 12 length is identical, and this is identical to the thickness of lower steel plate 4 so that H type steel 11 is to be horizontally disposed with, and ribbed stiffener 10 is located at the second support On the outer wall circumference of the lower end of the upper end of steel pipe 12 of structure and hypomere steel pipe 2, the lower end of hypomere steel pipe 2 and ribbed stiffener thereon On 10 top flanges being jointly fixed on H type steel 11, and the upper end of steel pipe 12 of the second supporting construction and ribbed stiffener 10 thereon are altogether It is fixed on the lower flange of H type steel 11 together.
As shown in figure 5, the construction method of above-mentioned interim steel pipe support prestressed reinforcement structure, comprise the following steps:
(1) this is fixed on the structural elements of floor bottom surface to lower steel plate 4, then a pair of steel pipe by the second supporting construction 12 lower end is separately fixed on lower steel plate 4;
(2) in this upper end outer wall circumference soldering ribbed stiffener 10 to steel pipe 12 of the second supporting construction, then by this to steel pipe 12 Upper end and ribbed stiffener 10 thereon be jointly welded on the lower flange of H type steel 11;
(3) in the lower end outer wall circumference soldering ribbed stiffener 10 of hypomere steel pipe 2, then by the lower end of hypomere steel pipe 2 and thereon plus Strength rib 10 is welded on the top flange of H type steel 11 jointly;
(4) it is arranged above upper steel plate 3 in hypomere steel pipe 2, the structural elements of floor top surface will be fixed on by upper steel plate 3 On, then the upper end of epimere steel pipe 2 is fixed on upper steel plate 3;
(5) adopt a pair of steel cattle foot 6 and two blocks of vertical steel plates 7, wherein one side of two blocks of vertical steel plates 7 is welded on On the outer wall of Duan Gangguan 1, two blocks of vertical steel plates 7 are to be arranged symmetrically, and another side of each vertical steel plate 7 passes through high-strength bolt 19 Connect a steel cattle foot 6;
(6) it is fixed on the supporting steel plate 8 on loading end in the setting of the underface of each steel cattle foot 6, in the present embodiment, hold Section is the upper surface of the top flange of H type steel 11, arranges a jack 9 on supporting steel plate 8, by jack 9 jacking steel cattle Foot 6 applies prestressing force to epimere steel pipe 1;
(7) after having applied prestressing force, by the upper end docking of the lower end of epimere steel pipe 1 and hypomere steel pipe 2;Specifically adopt one Curved plate 5 is symmetrically welded on epimere steel pipe 1 and the outside wall surface of hypomere steel pipe 2 docking site;
(8) remove jack 9, steel cattle foot 6 and vertical steel plate 7, obtain interim steel pipe support prestressed reinforcement structure.
Embodiment 3
As shown in fig. 6, the present embodiment is with the difference of embodiment 2: step (5) in, also adopt another pair steel Cattle foot 13 and other two blocks of vertical steel plates 14, wherein one side of this two blocks vertical steel plates 14 is welded on the outer of hypomere steel pipe 2 On wall, two blocks of vertical steel plates 14 are to be arranged symmetrically, and another side of each vertical steel plate 14 connects one by high-strength bolt 19 Steel cattle foot 13 is relative about 6 with the steel cattle foot being located on epimere steel pipe 1 positioned at the steel cattle foot 13 on hypomere steel pipe 2;In step (6) In, the upper surface positioned at each the steel cattle foot 13 on hypomere steel pipe 2 fixes supporting steel plate 15, supporting steel plate 15 is arranged One jack 9, the steel cattle foot 6 being located on epimere steel pipe 1 by jack 9 jacking applies prestressing force to epimere steel pipe 1, that is, carry Face is in the upper surface of the steel cattle foot 13 on hypomere steel pipe 2.
Seamless steel pipe diameter and thickness should be according to actual needs and related current specifications, code etc. determine existing according to construction Situation seamless steel pipe can be divided into four sections of steel pipes of two sections of steel pipes using embodiment 1 or embodiment 2: when needing arrangement prestress When steel pipe support locational space is enough, using two sections of seamless steel pipes;There is equipment when needing arrangement prestress steel pipe support position Or because other reasonses cause insufficient space, when steel pipe can not directly fall in underface, using four sections of seamless steel pipes.
When seamless steel pipe adopts two sections of seamless steel pipes, the length of two ends seamless steel pipe can be actually needed according to scene to be adjusted Whole, but after the completion of steel pipe arrangement, the spacing of epimere steel pipe and hypomere steel pipe should be between 0~5mm.
When seamless steel pipe adopts four sections of seamless steel pipes, epimere, hypomere, the length of a pair of seamless steel pipe of the second supporting construction Can be actually needed according to scene and be adjusted, but the length of a pair of seamless steel pipe of the second supporting construction should be identical, with this to no The thickness of the steel plate of seam fastener for connection should be identical, and after the completion of steel pipe arrangement, the spacing of epimere and hypomere steel pipe should be in 0~5mm Between.
The structural elements such as beam that floor top surface and bottom surface are connected by chemical anchor bolts with square plate or plate, its bearing capacity And construction should meet the regulation that interim pre-stressed steel pipe supports arrangement and the requirement using and related current specifications, code etc., no Should again choose when meeting and meet the position requiring or take corresponding strengthening measure to make dependency structure component meet requirement, Ran Houzai Arrange interim pre-stressed steel pipe supporting construction.
The size of ribbed stiffener should according to actual needs and related current specifications, code etc. determine.Above the steel pipe of bottom And weld size and the related request with ribbed stiffener below the steel pipe of middle part, the weld seam being connected with H type steel for steel pipe and ribbed stiffener Size and related request, all should according to actual needs and related current specifications, code etc. determine.
The size of steel cattle foot should according to actual needs and related current specifications, code etc. determine, according to job site situation Steel cattle foot can adopt two or four: when nearby space is enough for arrangement prestress steel pipe support position, using two steel cattle feet, Each steel cattle foot is attached by high-strength bolt with one block of steel plate respectively;Exist near arrangement prestress steel pipe support position Equipment or because other reasonses cause insufficient space, when jack can not directly fall on floor ground or H type girder steel, adopt four Individual steel cattle foot, each steel cattle foot is attached by high-strength bolt with one block of steel plate respectively.
The vertical steel plate being connected with steel cattle foot: during using two steel cattle feet, the vertical steel plate being connected with steel cattle foot should pass through Welding manner is connected with top seamless steel pipe, and two pieces of vertical steel plate replies claim arrangement, and arrangement height is according to needed for jack arrangement Height and below steel plate thickness determine;During using four steel cattle feet, wherein two blocks vertical steel plates should by welding manner respectively Be connected with top seamless steel pipe, in addition two blocks of vertical steel plates should by welding manner respectively with top seamless steel pipe immediately below nothing Seam fastener for connection, four blocks of vertical steel plates should arrange, arrangement pitch is high according to needed for jack arrangement by symmetrical two-by-two simultaneously consistency from top to bottom Degree and below steel plate determine.
To steel cattle foot connect vertical steel plate size should according to actual needs and related current specifications, code etc. determination.
The vertical steel plate being connected with steel cattle foot is attached using welding manner with seamless steel pipe, the size of weld seam and correlation Requirement should according to actual needs and related current specifications, code etc. determine.
Jack is two, places supporting steel plate below jack, and jack should be after steel cattle foot installs, frame respectively It is located at immediately below the steel cattle foot of upper end two, apply prestressing force as needed.The size of the supporting steel plate placed below jack should According to actual needs and related current specifications, code etc. determine.
When jack supported underneath steel plate is placed on the structural elements such as square beam or plate under floor, the holding of these structural elements Loading capability and construction should meet interim jack arrangement and the rule applying prestressed requirement and related current specifications, code etc. Fixed, should again choose when being unsatisfactory for and meet the position requiring or take corresponding strengthening measure to make dependency structure component meet requirement, Then supporting steel plate and its top jack are arranged again.
Two pieces of curved plate sizes for being fixedly connected top seamless steel pipe extremely underface seamless steel pipe should complete phase According to actual needs and related current specifications, code etc. determine, but 200mm should be not less than with, curved plate height, internal diameter with no Seam outer diameter of steel pipes is identical, the many 2mm of wall ratio wall thickness of seamless steel tube.Two pieces of curved plates should be symmetrically welded, the arc length of curved plate Should meet the following requirements: for convenience of construction, when two pieces of curved plates are fixed on seamless steel pipe by welding manner, curved plate The distance between edges of boards should be between 30~50mm.
Curved plate should be according to reality with top seamless steel pipe and its weld size of underface seamless steel pipe and related request Border needs and related current specifications, code etc. determine.
Embodiments of the present invention not limited to this, according to the above of the present invention, the ordinary skill according to this area is known Know and customary means, under the premise of without departing from the present invention above-mentioned basic fundamental thought, the present invention can also make other multiple shapes The modification of formula, replacement or change, all fall within rights protection scope of the present invention.

Claims (10)

1. a kind of interim steel pipe support prestressed reinforcement structure it is characterised in that: it includes the first supporting construction, described first Support structure is mainly made up of two sections of steel pipes and a pair of steel plate, and described two sections of steel pipes are vertically arranged and dock, steel pipe above For epimere steel pipe, described epimere steel pipe is applied with the prestressing force producing by jacking, and underlying steel pipe is hypomere steel pipe, its In one block of steel plate be used for being connected with the structural elements of floor top surface, referred to as upper steel plate, this upper steel plate is fixed on the upper of epimere steel pipe On end, and another block of steel plate is used for being connected with the structural elements of floor bottom surface, referred to as lower steel plate, and this lower steel plate is fixed on hypomere steel On the lower end of pipe.
2. interim steel pipe support prestressed reinforcement structure according to claim 1 it is characterised in that: described two sections of steel pipes lead to Cross a pair of curved plate docking, this is adapted with the outside wall surface of two sections of steel pipes to the inner surface of curved plate, and this is to curved plate It is symmetrically welded in the outside wall surface of two sections of steel pipe docking sites.
3. interim steel pipe support prestressed reinforcement structure according to claim 2 it is characterised in that: described curved plate Length is more than or equal to 200mm, and this is 30~50mm to the distance between edges of boards of curved plate.
4. interim steel pipe support prestressed reinforcement structure according to claim 3 it is characterised in that: described lower steel plate with The second supporting construction is had additional, described second supporting construction is mainly by a pair of steel pipe, ribbed stiffener and H type steel group between hypomere steel pipe Become, described lower steel plate be a pair, this is separately fixed to lower steel plate on the lower end of steel pipe of described second supporting construction, described plus On the outer wall circumference of the lower end of the upper end of the steel pipe located at the second supporting construction for the strength rib and hypomere steel pipe, under described hypomere steel pipe End and ribbed stiffener thereon are fixed on the top flange of described H type steel jointly, and the upper end of the steel pipe of described second supporting construction And ribbed stiffener thereon is fixed on the lower flange of described H type steel jointly.
5. interim steel pipe support prestressed reinforcement structure according to claim 4 it is characterised in that: described epimere steel pipe The distance between upper end of lower end and hypomere steel pipe is 0~5mm.
6. interim steel pipe support prestressed reinforcement structure according to claim 5 it is characterised in that: described second support knot The length of the steel pipe of structure is identical, described this identical to the thickness of lower steel plate so that H type steel is to be horizontally disposed with.
7. a kind of construction method of the interim steel pipe support prestressed reinforcement structure described in claim 1 is it is characterised in that include Following steps:
(1) upper steel plate and lower steel plate are separately fixed on floor top surface and the structural elements of bottom surface;
(2) the upper end of epimere steel pipe is fixed on upper steel plate, and the lower end of hypomere steel pipe is fixed on lower steel plate, and epimere steel Pipe is located at the surface of hypomere steel pipe;
(3) adopt a pair of steel cattle foot and two blocks of vertical steel plates, wherein one side of two blocks of vertical steel plates is respectively welded at epimere steel pipe Outer wall on, two blocks of vertical steel plates are to be arranged symmetrically, another side one steel cattle foot of connection of every block of vertical steel plate;
(4) the supporting steel plate fixing on the ground in the setting of the underface of each steel cattle foot, on supporting steel plate, setting one is very heavy Top, applies prestressing force by jack jacking steel cattle foot to epimere steel pipe;
(5) after having applied prestressing force, by the upper end docking of the lower end of epimere steel pipe and hypomere steel pipe;
(6) remove jack, steel cattle foot and vertical steel plate, obtain interim steel pipe support prestressed reinforcement structure.
8. a kind of construction method of the interim steel pipe support prestressed reinforcement structure described in claim 4 is it is characterised in that include Following steps:
(1) this is fixed on the structural elements of floor bottom surface to lower steel plate, then the lower end by a pair of steel pipe of the second supporting construction It is separately fixed on lower steel plate;
(2) in this upper end outer wall circumference soldering ribbed stiffener to steel pipe of the second supporting construction, then by this to the upper end of steel pipe and its On ribbed stiffener be jointly welded on the lower flange of H type steel;
(3) in the lower end outer wall circumference soldering ribbed stiffener of hypomere steel pipe, then will be common to the lower end of hypomere steel pipe and ribbed stiffener thereon It is welded on the top flange of H type steel;
(4) it is arranged above upper steel plate in hypomere steel pipe, will upper steel plate be fixed on the structural elements of floor top surface, then will The upper end of epimere steel pipe is fixed on upper steel plate;
(5) adopt a pair of steel cattle foot and two blocks of vertical steel plates, wherein one side of two blocks of vertical steel plates is welded on epimere steel pipe On outer wall, two blocks of vertical steel plates are to be arranged symmetrically, and another side of each vertical steel plate connects a steel cattle foot;
(6) it is fixed on the supporting steel plate on loading end in the setting of the underface of each steel cattle foot, setting one is very heavy on supporting steel plate Top, applies prestressing force by jack jacking steel cattle foot to epimere steel pipe;
(7) after having applied prestressing force, by the upper end docking of the lower end of epimere steel pipe and hypomere steel pipe;
(8) remove jack, steel cattle foot and vertical steel plate, obtain interim steel pipe support prestressed reinforcement structure.
9. the interim steel pipe support prestressed reinforcement structure described in a kind of claim 8 construction method it is characterised in that: described Loading end is the upper surface of the top flange of H type steel.
10. the interim steel pipe support prestressed reinforcement structure described in a kind of claim 8 construction method it is characterised in that: Described step (5) in, also adopt another pair steel cattle foot and other two blocks of vertical steel plates, by wherein the one of this two blocks vertical steel plates Side is welded on the outer wall of hypomere steel pipe, and two blocks of vertical steel plates are to be arranged symmetrically, and another side of each vertical steel plate connects One steel cattle foot is relative up and down with the steel cattle foot being located on epimere steel pipe positioned at the steel cattle foot on hypomere steel pipe;In described step (6) in, the upper surface positioned at each the steel cattle foot on hypomere steel pipe fixes supporting steel plate, supporting steel plate arranges 1,000 Jin top, the steel cattle foot being located on epimere steel pipe by jack jacking applies prestressing force to epimere steel pipe, and that is, described loading end is The upper surface of the steel cattle foot on hypomere steel pipe.
CN201610905524.4A 2016-10-18 2016-10-18 Temporary steel pipe supported prestressed reinforcement structure and construction method thereof Pending CN106351462A (en)

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CN111042579A (en) * 2020-01-02 2020-04-21 中国建筑第八工程局有限公司 Quick back jacking device and method for load-bearing structure

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