CN110593271A - Node for enabling independent lattice column to penetrate through inner supporting beam and construction method of node - Google Patents
Node for enabling independent lattice column to penetrate through inner supporting beam and construction method of node Download PDFInfo
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- CN110593271A CN110593271A CN201910898631.2A CN201910898631A CN110593271A CN 110593271 A CN110593271 A CN 110593271A CN 201910898631 A CN201910898631 A CN 201910898631A CN 110593271 A CN110593271 A CN 110593271A
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- lattice column
- haunching
- inner support
- independent lattice
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- 238000010276 construction Methods 0.000 title abstract description 37
- 239000004793 Polystyrene Substances 0.000 claims abstract description 32
- 229920002223 polystyrene Polymers 0.000 claims abstract description 32
- 230000002787 reinforcement Effects 0.000 claims description 33
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 25
- 239000004567 concrete Substances 0.000 claims description 25
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 15
- 229910052742 iron Inorganic materials 0.000 claims description 13
- 238000009415 formwork Methods 0.000 claims description 8
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 2
- 238000004873 anchoring Methods 0.000 claims 1
- 229920006389 polyphenyl polymer Polymers 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000010410 layer Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 210000001099 axilla Anatomy 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/02—Foundation pits
- E02D17/04—Bordering surfacing or stiffening the sides of foundation pits
Abstract
A node for an independent lattice column to penetrate through an inner supporting beam and a construction method thereof are disclosed, wherein the width of the inner supporting beam is larger than the longitudinal width of the independent lattice column, polystyrene boards are attached to the outer walls of four sides of the inner supporting beam part penetrated by the independent lattice column, haunching areas are arranged on the opposite side edges of the inner supporting beam and two sides corresponding to the independent lattice column, the horizontal section of the haunching area is an isosceles trapezoid, the central point of the independent lattice column and the upper edges of the two isosceles trapezoids, namely the connecting line of the central points of the border lines of the haunching areas are positioned on the same longitudinal straight line, and the length of the border lines of the haunching areas is at least three times of the. The invention can effectively solve the difficult problem that the independent lattice column is not rigidly connected with the inner supporting beam, effectively ensure the width of the section of the inner support and the construction quality, and ensure the safety and the stability of the inner support.
Description
Technical Field
The invention relates to the field of building construction, in particular to a node for an independent lattice column to penetrate through an inner supporting beam and a construction method thereof.
Background
The reinforced concrete inner support is widely applied to an oversized deep foundation pit, and a steel lattice column is generally adopted as a vertical support of the inner support. The construction of the existing deep foundation pit is mainly divided into forward construction method and reverse construction method, the construction of the foundation pit and the basement structure during the forward construction method occupies longer time, and the finish time of positive and negative zero floors is later; although the reverse construction method can firstly complete the construction of positive and negative zero floors, the construction of the multi-layer basement structure is difficult and time-consuming.
The construction technology of positive and negative zero floors is adopted in certain engineering according to the construction technology of a reverse construction method, the construction of a floor interlayer and the positive and negative zero floors is completed before the whole earthwork excavation of the foundation pit, and the lattice column is used as a temporary vertical supporting structure of the floor. The requirement of the building seat lattice column is mutually independent from the inner support, the inner support is ensured not to influence the displacement and settlement of the building seat structure, and the safety and stability of deep foundation pit construction are ensured.
Disclosure of Invention
The invention aims to provide a node for an independent lattice column to penetrate through an inner supporting beam and a construction method thereof, which aim to solve the problem that the independent lattice column is not rigidly connected with the inner supporting beam, effectively guarantee the width and construction quality of the section of an inner support, and ensure the safety and stability of the inner support.
In order to achieve the purpose, the invention adopts the following technical scheme:
a node where an individual lattice column passes through an inner support beam, the inner support beam width being greater than the individual lattice column longitudinal width, wherein: polystyrene boards are attached to the outer walls of four sides of the inner supporting beam part through which the independent latticed columns penetrate, armpit areas are arranged on the opposite side edges of the inner supporting beam and on the two sides corresponding to the independent latticed columns, the horizontal sections of the armpit areas are isosceles trapezoids, the central points of the independent latticed columns and the upper edges of the two isosceles trapezoids, namely the connecting lines of the central points of the side lines of the armpit areas are located on the same longitudinal straight line, and the length of the side lines of the armpit areas is at least three times of the transverse width of the independent latticed columns.
Further preferably, the independent lattice columns are located on the central line of the inner support beam, the widths of the haunching areas on two sides are b1 and b2 respectively, the longitudinal width of each independent lattice column is H, the distances between the two sides of the central line of the inner support beam and the opposite sides of each independent lattice column and the central line of the inner support beam are H1 and H2, H, b1, b2, H1 and H2 respectively satisfy the following relational expressions, b1= H1, H2= b2, H = b1+ b2, and the projection length a of the waist of the haunching area on each side at the bottom edge of the haunching area is 3 ~ 5 times of the width of the haunching area on the same side.
Furthermore, the independent lattice column is not located on the central line of the inner support beam, the projection length a of the haunching area waist portion at the bottom edge of the haunching area is 3 ~ times of the width of the haunching area on the same side, the widths of the haunching areas on two sides are B1 and B2 respectively, the longitudinal width of the independent lattice column is H, the distances from the polystyrene boards on two sides of the independent lattice column to the border line of the haunching area are B1 and B2 respectively, the distances from the middle points of B1 and B2 to the central line of the inner support beam are S1 and S2 respectively, the widths of the inner support beam are H, L, L, B1, B2, S1 and S2, and B1S 1= B2S 2, B1+ B2L or more, and H = B1+ B2.
Further, the projected length a of the haunch area waist portion at the bottom edge of the haunch area on each side is 3 ~ 5 times of the haunch area width b, and the longitudinal width of the independent lattice column 1 is 2 times of the haunch area width b.
Further, the haunching area width b is not less than the transverse width of the individual lattice column 1 wrapped with polystyrene board 4.
Further, the haunching area width b is not less than the transverse width of the individual lattice column 1 wrapped with polystyrene board 4.
Furthermore, the reinforcement type and the arrangement interval of the hooping of the haunching area and the inner support beam hooping of the inner support beam are the same.
Furthermore, the types and the arrangement intervals of the reinforcing steel bars used by the main reinforcing steel bars at the haunching part of the haunching area and the main reinforcing steel bars of the inner supporting beam are the same, and the main reinforcing steel bars at the haunching part of each layer are arranged corresponding to the main reinforcing steel bars of the supporting beam in each layer.
Furthermore, the length of the main reinforcement at the haunching position anchored into the inner support beam concrete is 35d, d is the diameter length of the main reinforcement at the haunching position, the support beam concrete is not rigidly connected with the independent lattice column, 2 ~ 3 main reinforcements at the haunching position on the same horizontal plane are arranged at each side of the haunching position, and the arrangement plane shape of the main reinforcement at the haunching position is matched with the shape of the haunching position.
Further, the polystyrene board is bound on the independent lattice column through iron wires, and the distance between the upper iron wire and the lower iron wire is 300 ~ 320 mm.
A construction method for enabling an independent lattice column to penetrate through a node of an inner supporting beam is characterized by comprising the following steps:
step one, constructing an independent lattice column: constructing an independent lattice column according to a conventional technical means, and binding and fixing polystyrene boards at the positions of the independent lattice column corresponding to the inner support beams;
step two, determining the position of the inner supporting beam: positioning and paying off the inner supporting beam at the position of the independent lattice column, determining the position relation between the independent lattice column and the inner supporting beam, whether the independent lattice column is positioned at the central line of the inner supporting beam or not and the position away from the central line, and determining the width L of the inner supporting beam;
step three, constructing the reinforcing steel bars of the inner supporting beam: binding the main reinforcements of the inner support beam and the stirrups of the inner support beam according to the requirements of a drawing, wherein the main reinforcements of the inner support beam are disconnected at the position meeting the polystyrene board, and the stirrups of the inner support beam are constructed to an armpit area;
step four, constructing reinforcing steel bars in the haunching area: determining the width of the haunching area and the length of the border line of the haunching area according to the fact whether the independent lattice column is on the center line of the inner supporting beam or not, and processing and binding the main reinforcement at the haunching position and the stirrup at the haunching position;
step five, pouring concrete: and after the inner support formwork is erected, pouring concrete at the haunching position and concrete of the inner support beam, maintaining the inner support concrete, and dismantling the outer formwork of the inner support after strength is achieved.
Compared with the prior art, the invention has the following characteristics and beneficial effects:
the invention discloses a node for an independent lattice column to penetrate through an inner supporting beam and a construction method thereof, which can effectively solve the difficult problem that the independent lattice column is not rigidly connected with the inner supporting beam, effectively ensure the width and construction quality of the section of an inner support, and ensure the safety and stability of the inner support. And the construction is simple and convenient, the polyphenyl board can be fixed for use after being cut, the problem that the polyphenyl board needs to be dismantled after being poured by adopting materials such as templates, battens and the like is avoided, and the construction period and the cost are saved.
The haunching construction method for the inner support beam encountering the independent lattice column node can effectively solve the difficult problem that the independent lattice column is not rigidly connected with the inner support beam, the haunching width is adjusted through the specification and the section width of the independent lattice column, different haunching main reinforcements and stirrups are replaced, the section width and the construction quality of the inner support are effectively guaranteed, and the safety and the stability of the inner support are guaranteed.
The haunching construction method for the inner support beam to meet the independent lattice column node is simple and convenient to construct, the polystyrene board can be fixed for use after being cut, the problem that materials such as templates and battens need to be manually dismantled after pouring is completed is solved, and the construction period and the cost are saved.
Drawings
FIG. 1 is a first embodiment of a node for an independent lattice column passing through an inner support beam according to the present invention;
FIG. 2 is a second embodiment of the node of the independent lattice column passing through the inner support beam according to the present invention;
figure 3 is a representation of the polystyrene plate banding to which the present invention relates.
Reference numerals: 1-an independent lattice column; 2-inner support beam; 4-polystyrene board; 5-iron wire; 7-hooping at the axilla; 8-inner support beam stirrups; 9-adding major ribs at the armpit; 10-inner supporting beam main reinforcement; 12-haunching zone sideline; a-projection length.
Detailed Description
In order to make the technical means, innovative features, objectives and functions realized by the present invention easy to understand, the present invention is further described below.
The examples described herein are specific embodiments of the present invention, are intended to be illustrative and exemplary in nature, and are not to be construed as limiting the scope of the invention. In addition to the embodiments described herein, those skilled in the art will be able to employ other technical solutions which are obvious based on the disclosure of the claims and the specification of the present application, and these technical solutions include technical solutions which make any obvious replacement or modification for the embodiments described herein.
A node of an independent lattice column penetrating through an inner supporting beam, wherein the width of the inner supporting beam 2 is larger than the longitudinal width of an independent lattice column 1, polystyrene boards 4 are attached to the outer walls of four sides of the position of the inner supporting beam 2 penetrating through the independent lattice column 1, as shown in figure 3, the polystyrene boards 4 are bound on the independent lattice column 1 through iron wires 5, the distance between the upper iron wire and the lower iron wire is 300 ~ 320mm, armpit areas are arranged on two sides, corresponding to the independent lattice column 1, on the opposite side edges of the inner supporting beam 2, the horizontal cross section of each armpit area is isosceles trapezoid, the central point of the independent lattice column 1 and the upper edges of the two isosceles trapezoids, namely the central point connecting line of the armpit area side line 12 are located on the same longitudinal straight line, and the length of the armpit area side line 12 is at least three times of the.
As shown in fig. 1, the independent lattice column 1 is located on the central line of the inner support beam 2, the widths of the axillary areas on both sides are b1 and b2, respectively, the longitudinal width of the independent lattice column 1 is H (including the thicknesses of the polystyrene boards on both sides, the same applies hereinafter), the distances from the central line of the inner support beam 2 to the sides of the central line of the inner support beam 2 and the opposite sides of the independent lattice column 1 are H1 and H2, respectively (the distances from H1 and b1 are the distance from the central line to the central line of the independent lattice column 1 on the same side and the width of the axillary area, and the sides of the independent lattice column 1 include the thickness of the polystyrene board), H, b1, b2, H1 and H2 satisfy the following relations, b1= H1, H2= b2, H = b1+ b2, and the projection length a of the axillary waist portion on each side at the bottom edge of the axillary area is 3 ~ 5 times.
As shown in FIG. 2, the independent lattice column 1 is not located on the center line of the inner support beam 2, the projection length a of the haunching area waist at the bottom edge of the haunching area is 3 ~ 5 times of the width of the haunching area at the same side, the widths of the haunching areas at two sides are B1 and B2 respectively, the longitudinal width of the independent lattice column 1 is H, the distances from the polystyrene boards 4 at two sides of the independent lattice column 1 to the haunching area side line 12 are B1 and B2 respectively, the distances from the middle points of B1 and B2 to the center line of the inner support beam 2 are S1 and S2 respectively, the beam widths of the inner support beam 2 are H, L, L, B1, B2, S1 and S2, B1S 1= B2S 2, B1+ B2 is more than or equal to L, and H = B1+ B2.
The width b of the haunching area is not less than the transverse width of the independent lattice column 1 wrapping the polystyrene board 4, the types and the arrangement intervals of the haunching position stirrups 7 of the haunching area and the inner support beam stirrups 8 of the inner support beam 2 are the same, the types and the arrangement intervals of the haunching position main reinforcements 9 of the haunching area and the inner support beam main reinforcements 10 of the inner support beam 2 are the same, the type and the arrangement intervals of the haunching position main reinforcements 9 of the haunching area and the inner support beam main reinforcements 10 of the inner support beam 2 are the same, the length of the haunching position main reinforcements 9 anchored into the inner support beam concrete is 35d, d is the diameter length of the haunching position main reinforcements 9, the support beam concrete 11 is not rigidly connected with the independent lattice column 1, 2 ~ 3 main reinforcements 9 of the haunching position on the same horizontal plane of each side haunching area are provided, and the arrangement plane shape of the haunching position.
A construction method for enabling an independent lattice column to penetrate through a node of an inner supporting beam is characterized by comprising the following steps:
step one, constructing an independent lattice column 1: constructing an independent lattice column 1 according to a conventional technical means, and binding and fixing a polystyrene board 4 at the position of the independent lattice column 1 corresponding to the inner supporting beam 2;
step two, determining the position of the inner supporting beam 2: positioning and paying off the support beam 2 in the independent lattice column 1 part, determining the position relation between the independent lattice column 1 and the inner support beam 2, determining whether the independent lattice column 1 is positioned at the center line of the inner support beam 2 and at a position away from the center line, and determining the beam width L of the inner support beam 2;
step three, constructing the inner supporting beam 2 steel bars: binding an inner support beam main rib 10 and an inner support beam stirrup 8 according to the requirement of a drawing, wherein the inner support beam main rib 10 is disconnected at the position meeting the polystyrene board 4, and the inner support beam stirrup 8 is constructed to an armpit area;
step four, constructing reinforcing steel bars in the haunching area: determining the width of the haunching area and the length of the border line 12 of the haunching area according to whether the independent lattice column 1 is on the central line of the inner supporting beam 2, and processing and binding the main reinforcement 9 at the haunching position and the stirrup at the haunching position;
step five, pouring concrete: and after the inner support formwork is erected, pouring concrete at the haunching position and concrete of the inner support beam, maintaining the inner support concrete, and dismantling the outer formwork of the inner support after strength is achieved.
The construction method comprises the steps of firstly arranging polystyrene boards in the coverage range of the inner support beams on four sides of the independent lattice column, fixing the polystyrene boards firmly by adopting binding iron wires, then binding inner support beam stirrups and inner support beam main reinforcements according to the drawing requirements, breaking the inner support beam main reinforcements when meeting the polystyrene boards, constructing the inner support beam stirrups to an haunching area, determining the haunching width and length according to the position relation of the independent lattice column and the inner support beams, blanking and binding the haunching main reinforcements and the haunching stirrups, and pouring haunching concrete and inner support beam concrete after the inner support template is erected. The construction method can effectively solve the difficult problem that the independent lattice column is not rigidly connected with the inner supporting beam, effectively ensure the width of the section of the inner support and the construction quality, and ensure the safety and the stability of the inner support. And the construction is simple and convenient, the polyphenyl board can be fixed for use after being cut, the problem that the polyphenyl board needs to be dismantled after being poured by adopting materials such as templates, battens and the like is avoided, and the construction period and the cost are saved.
The following provides specific examples of the construction of the present invention:
in this embodiment, the construction method of the supporting device for installing the steel column of the foundation slab includes:
the method comprises the following steps: arranging polystyrene boards in the coverage range of the inner support beams on four sides of the independent lattice column, wherein the polystyrene boards are fixed by binding iron wires;
step two: and positioning and paying off the inner support at the independent lattice column part, determining the position relation between the independent lattice column and the inner support beam, and determining the width L of the inner support beam according to whether the independent lattice column is positioned at the center line and at a position away from the center line.
Step three: binding the inner support beam stirrups and the inner support beam main reinforcements according to the drawing requirements, wherein the inner support beam main reinforcements are disconnected at the position meeting the polystyrene board, and the inner support beam stirrups are constructed to an armpit area.
Step four: and determining the width and the length of the haunch according to the measured position relation between the independent lattice column and the inner support beam, and blanking the main reinforcement at the haunch and the stirrup at the haunch. When the independent lattice column is positioned on the central line of the inner support, determining the haunching widths b1 and b2 at two sides, b1+ b2= the longitudinal width H of the independent lattice column (the longitudinal direction is the direction vertical to the transverse extension direction of the inner support beam) according to the distance between the independent lattice column and the polystyrene board deviated from the central line of the inner support beam; when the independent lattice columns are not positioned on the inner support center line, trial calculation is carried out according to the formula B1S 1= B2S 2 and the formula B1+ B2 which is not less than or equal to the inner support beam width L according to the distance of the independent lattice columns deviating from the inner support beam center line, then haunching widths B1 and B2 are calculated, and the net section width of the inner support beam is ensured. Wherein B1 and B2 are the distances from the independent lattice column and the polyphenyl plate to the haunch side line, S1 is the distance from the midpoint of B1 to the midpoint of the support beam, and S2 is the distance from the midpoint of B2 to the midpoint of the support beam.
Step five: and processing and binding the main reinforcement at the haunch and the stirrup at the haunch according to the blanking list.
Step six: and after the inner support formwork is erected, pouring concrete at the haunching position and inner support beam concrete.
Step seven: and maintaining the inner support concrete, and removing the outer side formwork of the inner support after the strength is reached.
In this embodiment, it is required that the concrete of the independent lattice column for supporting the positive and negative zero floors and the inner support beam cannot be rigidly connected. The length of the main reinforcement anchored into the inner support beam concrete at the haunching position is 35d, the size of the polyphenyl plate is 50mm in thickness, 750mm in height and 550mm in width of each side. The cross-sectional dimension of the individual lattice column is 500X 500 mm. The binding iron wire is 14# iron wire and is arranged at an interval of 300 mm.
In this embodiment, the width of the inner support beam is 800mm, 1200mm, 1800mm, 2200mm, 2400mm, 2800mm, 3000mm, and the height of the inner support beam is 700 mm.
In other embodiments, the width and height of the inner supporting beam are selected according to the design of the drawing.
In this embodiment, the main rib of the inner supporting beam is provided with22、22、25 are different, and the inner support beam stirrup is provided with8@200mm、8@150 mm.
In other embodiments, the main reinforcements and the stirrups of the inner supporting beam are selected according to the design of a drawing, and the arrangement requirements of the auxiliary main reinforcements and the stirrups are the same as those of the inner supporting beam.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (9)
1. A node for an individual lattice column passing through an inner support beam, the inner support beam (2) having a width greater than the longitudinal width of the individual lattice column (1), characterized in that: polystyrene boards (4) are attached to the outer walls of four sides of the inner supporting beam (2) through which the independent lattice column (1) penetrates, armpit areas are arranged on the opposite side edges of the inner supporting beam (2) and on the two sides corresponding to the independent lattice column (1), the horizontal section of each armpit area is isosceles trapezoid, the central point of the independent lattice column (1) and the upper edges of the two isosceles trapezoids, namely the connecting line of the central points of the side lines (12) of the armpit areas are located on the same longitudinal straight line, and the length of each side line (12) of the armpit areas is at least three times of the transverse width of the independent lattice column (1).
2. A node for passing an independent lattice column through an inner supporting beam according to claim 1 is characterized in that the independent lattice column (1) is positioned on the central line of the inner supporting beam (2), the widths of the haunching areas on two sides are respectively b1 and b2, the longitudinal width of the independent lattice column (1) is H, the distances between the two sides of the central line of the inner supporting beam (2) and the opposite sides of the independent lattice column (1) and the central line of the inner supporting beam (2) are respectively H1 and H2, H, b1, b2, H1 and H2 satisfy the following relations, b1= H1, H2= b2 and H = b1+ b2, and the projection length (a) of the haunching area waist part on each side at the bottom edge of the haunching area is 3 times and 3 ~ 5 times of the width of the haunching area on the same side.
3. A node for penetrating an independent lattice column through an inner support beam according to claim 1 is characterized in that the independent lattice column (1) is not positioned on the central line of the inner support beam (2), the projection length (a) of the waist part of the haunching area at the bottom edge of the haunching area is 3 ~ times of the width of the haunching area at the same side, the widths of the haunching areas at two sides are B1 and B2 respectively, the longitudinal width of the independent lattice column (1) is H, the distances from the polystyrene boards (4) at two sides of the independent lattice column (1) to the border line (12) of the haunching area are B1 and B2 respectively, the distances from the middle points of B1 and B2 to the central line of the inner support beam (2) are S1 and S2 respectively, and the beam widths of the inner support beam (2) are H, L, L, B1, B2, S1 and S2 respectively, and B1= B2, B2 + B2 + 1L and B2 + B.
4. A node of an independent lattice column across an inner support beam as claimed in claim 1, wherein: the width (b) of the haunching area is not less than the transverse width of the independent lattice column (1) wrapping the polystyrene board (4).
5. A node of an independent lattice column across an inner support beam as claimed in claim 1, wherein: the reinforcement type and the arrangement distance of the hooping (7) at the haunching position of the haunching area and the inner support beam hooping (8) of the inner support beam (2) are the same.
6. A node of an independent lattice column across an inner support beam as claimed in claim 1, wherein: the types and the arrangement intervals of reinforcing steel bars used by the main reinforcing steel bars (9) at the haunching positions in the haunching areas and the main reinforcing steel bars (10) of the inner support beams (2) are the same, and the main reinforcing steel bars (9) at the haunching positions in each layer are arranged corresponding to the main reinforcing steel bars (10) of the support beams in each layer.
7. A node for penetrating an inner supporting beam by an independent lattice column according to claim 6, wherein the length of anchoring the main reinforcement (9) at the haunch into the concrete of the inner supporting beam is 35d, d is the diameter length of the main reinforcement (9) at the haunch, the concrete (11) of the supporting beam is not rigidly connected with the independent lattice column (1), 2 ~ 3 of the main reinforcements (9) at the haunch at each side are positioned at the same horizontal plane, and the arrangement plane shape of the main reinforcement (9) at the haunch is adapted to the shape of the haunch.
8. A node of independent lattice column passing through inner supporting beam according to claim 1, characterized in that the polystyrene board (4) is bound on the independent lattice column (1) by iron wires (5), the distance between the upper and lower iron wires (5) is 300 ~ 320 mm.
9. A method of constructing a node of an individual lattice column across an inner support beam as claimed in any one of claims 1 ~ 8, comprising the steps of:
step one, constructing an independent lattice column (1): constructing an independent lattice column (1) according to a conventional technical means, and binding and fixing polystyrene boards (4) at the positions of the independent lattice column (1) corresponding to the inner supporting beams (2);
step two, determining the position of the inner supporting beam (2): positioning and paying off an inner supporting beam (2) at the position of the independent lattice column (1), determining the position relation between the independent lattice column (1) and the inner supporting beam (2), determining whether the independent lattice column is positioned at the center line of the inner supporting beam (2) and the position away from the center line, and determining the beam width L of the inner supporting beam (2);
thirdly, constructing the reinforcing steel bars of the inner supporting beam (2): binding an inner support beam main rib (10) and an inner support beam stirrup (8) according to the requirement of a drawing, wherein the inner support beam main rib (10) is disconnected when meeting the polystyrene board (4), and the inner support beam stirrup (8) is constructed to an armpit area;
step four, constructing reinforcing steel bars in the haunching area: determining the width of an armpit area and the length of an armpit area sideline (12) according to whether the central line of the inner supporting beam (2) of the independent lattice column (1) is the same as that of the inner supporting beam, and processing and binding main ribs (9) at the armpit and stirrups at the armpit;
step five, pouring concrete: and after the inner support formwork is erected, pouring concrete at the haunching position and concrete of the inner support beam, maintaining the inner support concrete, and dismantling the outer formwork of the inner support after strength is achieved.
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| CN201910898631.2A CN110593271A (en) | 2019-09-23 | 2019-09-23 | Node for enabling independent lattice column to penetrate through inner supporting beam and construction method of node |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115506370A (en) * | 2022-10-26 | 2022-12-23 | 中建一局集团建设发展有限公司 | Construction system and construction method for solving conflict between outer frame column and inner support node |
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| US4505087A (en) * | 1983-03-14 | 1985-03-19 | U.S. Filigree Wideslab, Inc. | Method of construction of concrete decks with haunched supporting beams |
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| CN103628572A (en) * | 2013-12-18 | 2014-03-12 | 华东建筑设计研究院有限公司 | Project beam-column joint for reverse building method |
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| CN105649217A (en) * | 2015-12-31 | 2016-06-08 | 上海建工建集团有限公司 | Profiled steel structure beam column joint for reverse construction of stiffened structure and construction method |
| CN109736449A (en) * | 2019-01-11 | 2019-05-10 | 杭州江润科技有限公司 | Stiffness structure bean column node and construction method |
| CN210917391U (en) * | 2019-09-23 | 2020-07-03 | 中建一局集团建设发展有限公司 | Construction joint between lattice column and inner supporting beam piece |
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| US4505087A (en) * | 1983-03-14 | 1985-03-19 | U.S. Filigree Wideslab, Inc. | Method of construction of concrete decks with haunched supporting beams |
| JPH0718733A (en) * | 1991-08-09 | 1995-01-20 | Shimizu Corp | Joint structure of column and beam |
| CN101845850A (en) * | 2010-06-22 | 2010-09-29 | 中国建筑第二工程局有限公司 | Strengthening concrete frame structure and construction method thereof |
| CN103628572A (en) * | 2013-12-18 | 2014-03-12 | 华东建筑设计研究院有限公司 | Project beam-column joint for reverse building method |
| CN103711199A (en) * | 2013-12-19 | 2014-04-09 | 上海建工七建集团有限公司 | Method and structure for processing construction joints at large-section beam and column joints |
| CN105649217A (en) * | 2015-12-31 | 2016-06-08 | 上海建工建集团有限公司 | Profiled steel structure beam column joint for reverse construction of stiffened structure and construction method |
| CN109736449A (en) * | 2019-01-11 | 2019-05-10 | 杭州江润科技有限公司 | Stiffness structure bean column node and construction method |
| CN210917391U (en) * | 2019-09-23 | 2020-07-03 | 中建一局集团建设发展有限公司 | Construction joint between lattice column and inner supporting beam piece |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115506370A (en) * | 2022-10-26 | 2022-12-23 | 中建一局集团建设发展有限公司 | Construction system and construction method for solving conflict between outer frame column and inner support node |
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