CN207829012U - A kind of foundation pit support post is constructed with basement bottom board connecting node - Google Patents
A kind of foundation pit support post is constructed with basement bottom board connecting node Download PDFInfo
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- CN207829012U CN207829012U CN201721716892.0U CN201721716892U CN207829012U CN 207829012 U CN207829012 U CN 207829012U CN 201721716892 U CN201721716892 U CN 201721716892U CN 207829012 U CN207829012 U CN 207829012U
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- bottom plate
- lattice column
- basement
- bottom board
- areas
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- 239000004567 concrete Substances 0.000 claims abstract description 47
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 43
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 31
- 239000010959 steel Substances 0.000 claims abstract description 31
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 29
- 238000007789 sealing Methods 0.000 claims abstract description 19
- 210000003205 muscle Anatomy 0.000 claims abstract description 17
- 238000005452 bending Methods 0.000 claims description 12
- 238000003466 welding Methods 0.000 claims description 6
- 230000015271 coagulation Effects 0.000 claims description 2
- 238000005345 coagulation Methods 0.000 claims description 2
- 230000008595 infiltration Effects 0.000 abstract description 5
- 238000001764 infiltration Methods 0.000 abstract description 5
- 230000000149 penetrating effect Effects 0.000 abstract description 4
- 238000010276 construction Methods 0.000 description 10
- 238000010586 diagram Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000012946 outsourcing Methods 0.000 description 3
- 239000002689 soil Substances 0.000 description 3
- 238000002513 implantation Methods 0.000 description 2
- 239000003973 paint Substances 0.000 description 2
- 239000005871 repellent Substances 0.000 description 2
- 230000001680 brushing effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
Abstract
A kind of foundation pit support post is constructed with basement bottom board connecting node, basement bottom board includes bottom plate top bars, bottom plate lower layer reinforcing bar and underplate concrete, concrete intercept net is equipped with around lattice column, concrete intercept net includes side net and bottom surface net, basement bottom board forms the areas grooved bottom board Hou Jiao by the interception of concrete intercept net around lattice column, the downside of bottom surface net is equipped with water expandable waterstop, steel plate for sealing water is equipped in the altitude range in the areas bottom plate Hou Jiao, the end of bottom plate lower layer reinforcing bar is fixedly connected on lattice column, bottom plate top bars are bent on the surface of lattice column, additional muscle is equipped in the areas bottom plate Hou Jiao.The utility model optimizes the connection relation between lattice column and basement bottom board reinforcing bar, water expandable waterstop is set on the interface of new-old concrete and steel plate for sealing water is set in the areas Hou Jiao, pouring concrete forms common stress system with first pouring concrete after guarantee, it prevents from forming penetrating passage, reduces the generation of basement infiltration.
Description
Technical field
The utility model belongs to foundation pit construction field, especially a kind of to be connect with basement bottom board positioned at foundation pit support post
Node structure.
Background technology
Since foundation pit support lattice column needs that negative one layer structure construction is waited for be removed after the completion, so lattice column and ground
The node processing of lower room bottom plate connection junction will be carried out at the same time with structure construction.Conventional construction method is by basement bottom board
Concrete connection is directly poured with lattice column, and after the cutting of later stage lattice column, bottom plate is damaged by two parts of reinforcing bar and concrete.
After bottom plate top bars are damaged, easily cause the baseplate reinforcing bar later stage discontinuous；Underplate concrete is damaged
Afterwards, the waterproof measure for cutting off position is also damaged together, and general treatment measures are that direct brushing water-repellent paint is repaired,
Such way can cause water-tight concrete and water-repellent paint to be unable to reach the effect of expected waterproof due to the corrosion of lattice column steel plate.
In addition the broken parts of underplate concrete can pour novel concrete, and the concrete newly poured and original lattice column combination effect are poor,
It is difficult to form the system of common stress, forms penetrating passage, eventually lead to basement bottom board infiltration；After especially infiltration occurs
It is not easy to be repaired, once infiltration phenomenon seriously also needs to abolish rises underplate concrete and repairing influences cost and work again
Phase, it is difficult to ensure structurally waterproof quality requirement.
Utility model content
The purpose of this utility model is to provide a kind of foundation pit support post and is constructed with basement bottom board connecting node, to solve
The existing lattice column damage bottom plate top bars that directly cut off lead to the discontinuous technical problem of baseplate reinforcing bar；It also solves existing
It directly cuts off lattice column and destroys underplate concrete, original waterproof repairing method effect is poor, and the new-old concrete on bottom plate is difficult to shape
At the system of common stress, the technical issues of forming penetrating passage, basement bottom board caused to seep water.
To achieve the above object, the utility model adopts the following technical solution：
A kind of foundation pit support post is constructed with basement bottom board connecting node, including basement bottom board and runs through basement bottom
The lattice column of plate, the basement bottom board include bottom plate top bars, bottom plate lower layer reinforcing bar and underplate concrete,
The concrete intercept net of basement bottom board is equipped with around the lattice column, the concrete intercept net includes four
The side net of a side and a bottom surface net, the side net is down-set from the uper side surface position of basement bottom board, side
The height of net is the half of basement bottom board thickness, and the basement bottom board is by the interception of concrete intercept net in lattice column
Around form grooved bottom board Hou Jiao areas,
The downside of the bottom surface net is equipped with encloses water expandable waterstop around lattice column one,
Horizontal steel plate for sealing water is equipped in the altitude range in the areas the bottom plate Hou Jiao, steel plate for sealing water half is embedded to basement bottom
In plate, the other half is stretched into the areas bottom plate Hou Jiao,
Bottom plate lower layer reinforcing bar disconnects at the position that lattice column runs through basement bottom board, the bottom plate lower layer steel of disconnection
The end of muscle is fixedly connected on lattice column,
The bottom plate top bars disconnect at the position that lattice column runs through basement bottom board, the bottom plate upper layer steel of disconnection
The end of muscle is stretched into the areas bottom plate Hou Jiao, is bent on the surface of lattice column,
The additional muscle that the bottom plate top bars that will be switched off are connected as one is equipped in the areas the bottom plate Hou Jiao, the lattice is vertical
Column waits for that section is located in the altitude range in the areas bottom plate Hou Jiao.
The height in the areas the bottom plate Hou Jiao is not less than the half of base plate thickness, and the width in the areas the bottom plate Hou Jiao is not less than bottom
Twice of the lap of splice of plate top bars and additional muscle and the sum of the diameter of lattice column.
The additional muscle is groined type, including center and extension, and the center encloses the outside of lattice column, described to stretch
Long section is integrated with the bottom plate top bars overlap joint stretched into the areas bottom plate Hou Jiao.
The lattice column waits for that section is located in the altitude range in the areas bottom plate Hou Jiao.
The top bars bending segment length of the bottom plate top bars of disconnection is not less than 20 times of bar diameter.
Distance of the water expandable waterstop apart from lattice leg surface is not more than 150mm.
The absolute altitude for waiting for section is identical as the absolute altitude that bottom surface is netted.
The thickness of the steel plate for sealing water is not less than 3mm, and steel plate for sealing water is located at the middle part of the altitude range in the areas bottom plate Hou Jiao.
The lattice column is steel lattice column, and the end of the bottom plate lower layer reinforcing bar of disconnection is bent, lower layer's reinforcing bar bending segment weldering
It is connected on lattice column.
The length of lower layer's reinforcing bar bending segment and lattice column single-sided welding, welding is not less than 10 times of bar diameters.
The lattice column is the steel lattice column with external wrapping concrete layer, and the bottom plate lower layer reinforcing bar implantation outsourcing of disconnection is mixed
In solidifying soil layer.
Length in the bottom plate lower layer reinforcing bar implantation external wrapping concrete layer of disconnection is not less than 15 times bar diameters.
The utility model has the characteristics that and advantageous effect compared with prior art：
The utility model forms a grooved bottom board in lattice column and basement bottom board junction by concrete intercept net
The areas Hou Jiao optimize the connection relation between lattice column and basement bottom board reinforcing bar, the lower layer's reinforcing bar and lattice column of basement bottom board
Be fixedly connected, top bars are connectionless with lattice column, and by being enclosed in around lattice column, absolute altitude be higher than lattice column cutting position
Additional bar complete reinforcing bar continuous stress, ensure the continuous stress of basement bottom board.
The utility model is by optimizing the connection relation between lattice column and basement bottom board reinforcing bar, in new-old concrete
Water expandable waterstop is set on interface and steel plate for sealing water is set in the areas Hou Jiao, pouring concrete and first pouring concrete shape after guarantee
It at common stress system, prevents from forming penetrating passage, reduces the generation of basement infiltration.It cuts off after lattice column in grooved bottom board
It is poured in the areas Hou Jiao and mixes the concrete of micro-expanding agent construction can be completed, it is very big while ensuring the construction quality with water-stagnating effect
Save duration and cost, it is adaptable to be conducive to engineering green construction and safety construction.
Description of the drawings
The utility model is described in more detail below in conjunction with the accompanying drawings.
Fig. 1 is the structural schematic diagram of the utility model embodiment one.
Fig. 2 is the arrangement schematic diagram of bottom plate lower layer of the areas Fig. 1 bottom plate Hou Jiao reinforcing bar.
Fig. 3 is the arrangement schematic diagram of Fig. 1 bottom plate Hou Jiao area's bottom plate top bars and additional muscle.
Fig. 4 is the structural schematic diagram of the utility model embodiment two.
Fig. 5 is the arrangement schematic diagram of bottom plate lower layer of the areas Fig. 4 bottom plate Hou Jiao reinforcing bar.
Fig. 6 is the arrangement schematic diagram of Fig. 4 bottom plate Hou Jiao area's bottom plate top bars and additional muscle.
Reference numeral：1- basement bottom boards, 11- bottom plates top bars, 111- top bars bending segment, 12- bottom plates
Lower layer's reinforcing bar, 121- lower layers reinforcing bar bending segment, 13- underplate concretes, 2- lattices column, 3- concrete intercept net, 31-
Side net, the bottom surfaces 32- net, the areas 4- bottom plate Hou Jiao, 5- water expandable waterstops, 6- steel plate for sealing water, 7- wait for section, 8-
External wrapping concrete layer, 9- additional muscles, 91- centers, 92- extensions.
Specific implementation mode
Embodiment one is referring to shown in Fig. 1-3, and a kind of foundation pit support post is constructed with basement bottom board connecting node, including ground
Lower room bottom plate 1 and lattice column 2 through basement bottom board, lattice column 2 are steel lattice column, are also applied for that outsourcing can be rejected mixed
The lattice column of soil is coagulated, the basement bottom board includes bottom plate top bars 11, bottom plate lower layer reinforcing bar 12 and underplate concrete 13.
The concrete intercept net 3 of basement bottom board is equipped with around the lattice column 2, the concrete intercept net includes
The side net 31 and a bottom surface net 32 of four sides, the side net 31 is from the uper side surface position of basement bottom board to dividing into
It sets, the height of side net 31 is the half of 1 thickness of basement bottom board, and the basement bottom board 1 is blocked by concrete intercept net 3
It cuts and forms the areas grooved bottom board Hou Jiao 4 around lattice column 2.
The downside of the bottom surface net 32, new-old concrete boundary position are equipped with encloses water-swellable sealing around lattice column one
Item 5.Distance c of the water expandable waterstop 5 apart from 2 surface of lattice column is not more than 150mm.
Horizontal steel plate for sealing water 6 is equipped in the altitude range in the areas the bottom plate Hou Jiao 4,6 half of steel plate for sealing water is embedded to underground
In room bottom plate 1, the other half is stretched into the areas bottom plate Hou Jiao 4.The thickness of the steel plate for sealing water 6 is not less than 3mm.Steel plate for sealing water is located at bottom
The middle part of the altitude range in the areas Ban Houjiao.The absolute altitude of steel plate for sealing water and the height difference b of 1 uper side surface absolute altitude of basement bottom board are
200mm。
Bottom plate lower layer reinforcing bar 12 disconnects at the position that lattice column 2 runs through basement bottom board 1, under the bottom plate of disconnection
The end of layer reinforcing bar 12 is fixedly connected on lattice column 2.The end of the bottom plate lower layer reinforcing bar 12 of disconnection is bent, and lower layer's reinforcing bar is curved
Trisection 121 is welded on lattice column.Lower layer's reinforcing bar bending segment 121 and 2 single-sided welding of lattice column, the length of welding is not
Less than 10 times bar diameters.
The bottom plate top bars 11 disconnect at the position that lattice column runs through basement bottom board, the bottom plate upper layer of disconnection
It stretches into the areas bottom plate Hou Jiao 4, bent on the surface of lattice column 2 in the end of reinforcing bar 11.The upper layer of the bottom plate top bars 11 of disconnection
111 length of reinforcing bar bending segment is not less than 20 times of bar diameter.
The additional muscle 9 that the bottom plate top bars 11 that will be switched off are connected as one, the bottom are equipped in the areas the bottom plate Hou Jiao 4
The height in the areas Ban Houjiao 4 is not less than the half of base plate thickness, and the width in the areas the bottom plate Hou Jiao is not less than bottom plate top bars 11
With twice of the lap of splice of additional muscle 9 and the sum of the diameter of lattice column 2.
The lattice column 2 waits for that section 7 is located in the altitude range in the areas bottom plate Hou Jiao 4.The mark for waiting for section 7
It is high identical as the absolute altitude of bottom surface net 32.The additional muscle 9 is groined type, including center 91 and extension 92, the center 91 enclose
The outside of qualified structure column 2, the extension 92 are integrated with the overlap joint of bottom plate top bars 11 stretched into the areas bottom plate Hou Jiao 4.
The joint construction method of the present embodiment is as follows：
Step 1, overlap joint bottom plate lower layer reinforcing bar can not run through lattice column and be bent in reinforcing bar one end, by top bars bending segment
It is welded on the steel plate of steel lattice column；
Step 2 hangs concrete intercept net on the corresponding position in the areas bottom plate Hou Jiao；
Steel plate for sealing water is arranged on the corresponding position in the areas bottom plate Hou Jiao in step 3；
Step 4, in bottom surface, water expandable waterstop is fixed in the downside of net；
Step 5 overlaps bottom plate top bars, can not run through lattice column and be bent in reinforcing bar one end, then by additional muscle and bottom
Plate top bars overlap；
Step 6 cuts off lattice column in the cross section place to be cut of design；
Step 7, the reinforcing bar at polishing lattice column, then will pour the microdilatancy of a high strength grade in the areas bottom plate Hou Jiao
Concrete.
Embodiment two is referring to shown in Fig. 4-6, what is different from the first embodiment is that the lattice column 2 is with outsourcing coagulation
The bottom plate lower layer reinforcing bar 12 of the steel lattice column of soil layer 8, disconnection is implanted into external wrapping concrete layer 8.It is not less than 15 times to be implanted into length
Bar diameter, suitable for the lattice column of external wrapping concrete can not be rejected.
This joint construction method is what is different from the first embodiment is that need to plant bottom plate lower layer reinforcing bar in step 1
Enter in the external wrapping concrete layer of steel lattice column, is also required to add additional muscle on lattice column side when length does not reach requirement.
Claims (10)
1. a kind of foundation pit support post is constructed with basement bottom board connecting node, including basement bottom board（1）With through basement
The lattice column of bottom plate（2）, it is characterised in that：The basement bottom board includes bottom plate top bars（11）, bottom plate lower layer reinforcing bar
（12）And underplate concrete（13）,
The lattice column（2）Around be equipped with basement bottom board concrete intercept net（3）, the concrete intercept net includes
The side net of four sides（31）With a bottom surface net（32）, the side net（31）From the uper side surface position of basement bottom board
It is down-set, side net（31）Height be basement bottom board（1）The half of thickness, the basement bottom board（1）Pass through coagulation
Native intercept net（3）Interception in lattice column（2）Around form grooved bottom board Hou Jiao areas（4）,
The bottom surface net（32）Downside be equipped with around lattice column one enclose water expandable waterstop（5）,
The areas the bottom plate Hou Jiao（4）Altitude range in be equipped with horizontal steel plate for sealing water（6）, steel plate for sealing water（6）Half embedment ground
Lower room bottom plate（1）Interior, the other half stretches into the areas bottom plate Hou Jiao（4）It is interior,
Bottom plate lower layer reinforcing bar（12）In lattice column（2）Through basement bottom board（1）Position at disconnect, the bottom plate of disconnection
Lower layer's reinforcing bar（12）End be fixedly connected on lattice column（2）On,
The bottom plate top bars（11）It is disconnected at position of the lattice column through basement bottom board, the bottom plate upper layer steel of disconnection
Muscle（11）End stretch into the areas bottom plate Hou Jiao（4）, in lattice column（2）Surface bending,
The areas the bottom plate Hou Jiao（4）It is interior equipped with the bottom plate top bars that will be switched off（11）The additional muscle being connected as one（9）, described
Lattice column（2）Wait for section（7）Positioned at the areas bottom plate Hou Jiao（4）Altitude range in.
2. foundation pit support post according to claim 1 is constructed with basement bottom board connecting node, it is characterised in that：It is described
Additional muscle（9）For groined type, including center（91）And extension（92）, the center（91）Enclose lattice column（2）Outside,
The extension（92）With stretch into the areas bottom plate Hou Jiao（4）Interior bottom plate top bars（11）Overlap joint is integrated.
3. foundation pit support post according to claim 1 is constructed with basement bottom board connecting node, it is characterised in that：It disconnects
Bottom plate top bars（11）Top bars bending segment（111）Length is not less than 20 times of bar diameter.
4. foundation pit support post according to claim 1 is constructed with basement bottom board connecting node, it is characterised in that：It is described
Water expandable waterstop（5）Apart from lattice column（2）The distance on surface is not more than 150mm.
5. foundation pit support post according to claim 1 is constructed with basement bottom board connecting node, it is characterised in that：It is described
Wait for section（7）Absolute altitude and bottom surface net（32）Absolute altitude it is identical.
6. foundation pit support post according to claim 1 is constructed with basement bottom board connecting node, it is characterised in that：It is described
Steel plate for sealing water（6）Thickness be not less than 3mm, steel plate for sealing water is located at the middle part of the altitude range in the areas bottom plate Hou Jiao.
7. the foundation pit support post according to claim 1-6 any one is constructed with basement bottom board connecting node, special
Sign is：The lattice column（2）For steel lattice column, the bottom plate lower layer reinforcing bar of disconnection（12）End bending, lower layer's reinforcing bar is curved
Trisection（121）It is welded on lattice column.
8. foundation pit support post according to claim 7 is constructed with basement bottom board connecting node, it is characterised in that：It is described
Lower layer's reinforcing bar bending segment（121）With lattice column（2）The length of single-sided welding, welding is not less than 10 times of bar diameters.
9. the foundation pit support post according to claim 1-6 any one is constructed with basement bottom board connecting node, special
Sign is：The lattice column（2）For with external wrapping concrete layer（8）Steel lattice column, the bottom plate lower layer reinforcing bar of disconnection（12）
It is implanted into external wrapping concrete layer（8）It is interior.
10. foundation pit support post according to claim 9 is constructed with basement bottom board connecting node, it is characterised in that：It is disconnected
The bottom plate lower layer reinforcing bar opened（12）It is implanted into external wrapping concrete layer（8）Interior length is not less than 15 times bar diameters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721716892.0U CN207829012U (en) | 2017-12-12 | 2017-12-12 | A kind of foundation pit support post is constructed with basement bottom board connecting node |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721716892.0U CN207829012U (en) | 2017-12-12 | 2017-12-12 | A kind of foundation pit support post is constructed with basement bottom board connecting node |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207829012U true CN207829012U (en) | 2018-09-07 |
Family
ID=63385980
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721716892.0U Expired - Fee Related CN207829012U (en) | 2017-12-12 | 2017-12-12 | A kind of foundation pit support post is constructed with basement bottom board connecting node |
Country Status (1)
| Country | Link |
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| CN (1) | CN207829012U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109837924A (en) * | 2019-01-31 | 2019-06-04 | 中国建筑第八工程局有限公司 | Pattern foundation pit supporting structure lattice column and main structure interleave the construction method at position |
| CN110424410A (en) * | 2019-08-20 | 2019-11-08 | 陕西建工第八建设集团有限公司 | A kind of construction method of temporary support lattice column and basement structure plate junction |
| CN111188492A (en) * | 2020-01-10 | 2020-05-22 | 中国华西企业股份有限公司 | Processing method for improving interface binding power of new and old concrete |
| CN111926860A (en) * | 2020-08-11 | 2020-11-13 | 中建科工集团有限公司 | Basement steel column water stop treatment method |
-
2017
- 2017-12-12 CN CN201721716892.0U patent/CN207829012U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109837924A (en) * | 2019-01-31 | 2019-06-04 | 中国建筑第八工程局有限公司 | Pattern foundation pit supporting structure lattice column and main structure interleave the construction method at position |
| CN110424410A (en) * | 2019-08-20 | 2019-11-08 | 陕西建工第八建设集团有限公司 | A kind of construction method of temporary support lattice column and basement structure plate junction |
| CN111188492A (en) * | 2020-01-10 | 2020-05-22 | 中国华西企业股份有限公司 | Processing method for improving interface binding power of new and old concrete |
| CN111926860A (en) * | 2020-08-11 | 2020-11-13 | 中建科工集团有限公司 | Basement steel column water stop treatment method |
| CN111926860B (en) * | 2020-08-11 | 2022-02-22 | 中建科工集团有限公司 | Basement steel column water stop treatment method |
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