CN110004942A - A kind of large span integral supporting structure and its construction method - Google Patents

A kind of large span integral supporting structure and its construction method Download PDF

Info

Publication number
CN110004942A
CN110004942A CN201910402488.3A CN201910402488A CN110004942A CN 110004942 A CN110004942 A CN 110004942A CN 201910402488 A CN201910402488 A CN 201910402488A CN 110004942 A CN110004942 A CN 110004942A
Authority
CN
China
Prior art keywords
support
arcuately
box
construction
steel pipe
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201910402488.3A
Other languages
Chinese (zh)
Inventor
易娟
王建军
胡宝山
刘喜林
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shanghai Zhiping Foundation Engineering Co Ltd
Original Assignee
Shanghai Zhiping Foundation Engineering Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shanghai Zhiping Foundation Engineering Co Ltd filed Critical Shanghai Zhiping Foundation Engineering Co Ltd
Priority to CN201910402488.3A priority Critical patent/CN110004942A/en
Publication of CN110004942A publication Critical patent/CN110004942A/en
Pending legal-status Critical Current

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D17/00Excavations; Bordering of excavations; Making embankments
    • E02D17/02Foundation pits
    • E02D17/04Bordering surfacing or stiffening the sides of foundation pits

Abstract

The invention discloses a kind of large span integral supporting structure and its construction methods, its main feature is that crown beam or waist rail absolute altitude are equipped with the horizontal support structure of transmission rod, arcuately box beam and Two bors d's oeuveres fashioned iron or steel pipe support, the Two bors d's oeuveres fashioned iron or steel pipe support are to be welded on that both ends are arcuately horizontally-supported on the built-in fitting of box beam, have it is several with arcuately box beam and Two bors d's oeuveres fashioned iron or steel pipe support be vertical support steel column and reinforced concrete upright column;Described transmission rod one end is fixedly connected by segmented head with crown beam or waist rail, the other end and the built-in fitting of arcuately box beam weld, integral supporting structure construction includes: construction, prefabricated arcuately box beam and Two bors d's oeuveres fashioned iron or the steel pipe support splicing production of support pile, steel column and stand column pile, and sets up the construction procedures such as integral supporting structure.The present invention has in-situ precast assembly, and reusable, the advantage that engineering cost is low, work efficiency is high compared with prior art.

Description

A kind of large span integral supporting structure and its construction method
Technical field
The present invention relates to foundation pit enclosure technical field, especially a kind of large span integral supporting structure and its construction method.
Background technique
Currently, the common support form of deep big foundation pit is substantially board-like vertical support system+horizontal struts system, it is conventional Support system is that cast-in-situ steel reinforced concrete supports and bracing members, wherein cast-in-situ steel reinforced concrete support need to be conserved to design strength Just can earth excavation, the construction period is longer, and support cannot reuse, certain waste of material is caused, although bracing members can With recycling, but bracing members arrangement spacing is smaller, and earth excavation is more difficult.
Summary of the invention
The purpose of the present invention is a kind of large span integral supporting structure that designs and its apply in view of the deficiencies of the prior art Work method, the gear using the integral supporting structure of the Two bors d's oeuveres type steel support being built up on column and arcuately box beam, for deep basal pit Fortifield village's shield support, has in-situ precast assembled and reusable, the advantage that engineering cost is low, work efficiency is high is particularly suitable for week Surrounding environment is complicated, and existing building is more, and excavating sideline is apart from the closer foundation pit supporting project construction of red line.
The object of the present invention is achieved like this: a kind of large span integral supporting structure, including support pile and crown beam or waist The support system of beam combines its main feature is that crown beam or waist rail are equipped with transmission rod with arcuately box beam and Two bors d's oeuveres fashioned iron or steel pipe support Support construction, the arcuately box beam is be welded on Two bors d's oeuveres fashioned iron or steel pipe support both ends horizontally-supported, is had several It is the steel column of vertical support with arcuately box beam and Two bors d's oeuveres fashioned iron or steel pipe support;The reinforcing bar at steel column lower part insertion hole bottom In concrete column stake;The transmission rod is the rod piece that fashioned iron or steel pipe make, and one end is consolidated by segmented head and crown beam or waist rail Fixed connection, the other end and arcuately box beam Welding.
The arcuately box beam is the component that armored concrete or prestressed reinforced concrete make, and be which is provided with and transmission rod The arcuately built-in fitting of box beam Welding.
A kind of construction method of large span integral supporting structure, its main feature is that the integral supporting structure carries out in the steps below Construction:
1. then surveying setting-out after smooth location carries out support pile, steel column and reinforced concrete by design requirement and job specfication Native column pile driving construction;The arcuately box beam and Two bors d's oeuveres fashioned iron of prefabricated reinforced concrete or prestressed reinforced concrete or steel pipe support Splicing production.
2. being excavated to first of support absolute altitude, crown beam of constructing and the connection with support pile.
3. setting up first of the water combined by arcuately box beam with Two bors d's oeuveres fashioned iron or steel pipe support and segmented head and transmission rod Flat support construction, transmission rod one end are fixedly connected by segmented head with crown beam, and the other end and the built-in fitting of arcuately box beam weld;Two bors d's oeuveres Fashioned iron or steel pipe support both ends and the built-in fitting of arcuately box beam weld, and after support is set up, apply on the segmented head at both ends Prestressing force.
4. being excavated to second support absolute altitude, construct waist rail and the connection with support pile.
5. 3. setting up second combined horizontal support construction by above-mentioned steps.
6. being excavated to hole bottom absolute altitude, construction cushion coat, bottom plate and bottom plate load transfering strip are simultaneously conserved.
7. removing second combined horizontal support construction after bottom plate and load transfering strip reach design strength, recycle to next time It utilizes.
8. construction -1 floor plate of basement and floor load transfering strip are simultaneously conserved.
9. removing first of combined horizontal support knot after -1 floor plate of basement and floor load transfering strip reach design strength Structure, recycling are utilized to next time.
10. backfilling the earthwork between support pile and outer wall of basement after the completion of basement roof construction.
The present invention has in-situ precast assembled and reusable compared with prior art, and engineering cost is low, work efficiency is high Advantage is particularly suitable for surrounding enviroment complexity, and existing building is more, and excavating sideline is applied apart from the closer foundation pit supporting project of red line Work.
Detailed description of the invention
Fig. 1 is schematic structural view of the invention;
Fig. 2 is implementation example figure.
Specific embodiment
Refering to attached drawing 1, the present invention includes support pile 1, crown beam 2 or waist rail 3, transmission rod 5, arcuately box beam 6 and Two bors d's oeuveres fashioned iron Or the support system of steel pipe support 7, the crown beam 2 or 3 absolute altitude of waist rail be equipped with transmission rod 5, arcuately box beam 6 and Two bors d's oeuveres fashioned iron or The built-in fitting 10 at the combined horizontal support structure of steel pipe support 7, the Two bors d's oeuveres fashioned iron or 7 both ends of steel pipe support and arcuately box beam 6 Be welded into it is horizontally-supported, have it is several with arcuately box beam 6 and Two bors d's oeuveres fashioned iron or steel pipe support 7 be vertical support steel column 8;8 lower part of steel column is inserted in the bottom reinforced concrete upright column stake 9 below of hole;The transmission rod 5 is fashioned iron or steel pipe The rod piece of production, one end are fixedly connected by segmented head 4 with crown beam 2 or waist rail 3, the built-in fitting 10 of the other end and arcuately box beam 6 Welding;The arcuately box beam 6 is the component that armored concrete or prestressed reinforced concrete make, which is provided with transmission rod and The arcuately built-in fitting 10 of box beam Welding.
With the embodiment of a certain Large and Deep Foundation Pit, present invention is further described in detail and explanation below:
Embodiment 1
Refering to attached drawing 2, the present invention carries out foundation pit enclosure combined support construction in the steps below:
1. then it is mixed to carry out support pile 1, steel column 8 and reinforcing bar by design requirement and job specfication for surveying setting-out after smooth location The construction of solidifying soil stand column pile 9;The arcuately box beam 6 and Two bors d's oeuveres fashioned iron or steel pipe of prefabricated reinforced concrete or prestressed reinforced concrete The splicing production of support 7.
2. being excavated to first of support absolute altitude, crown beam 2 of constructing and the connection with support pile 1.
It is combined by arcuately box beam 6 with Two bors d's oeuveres fashioned iron or steel pipe support 7 and segmented head 4 and transmission rod 5 3. setting up first Support construction, 5 one end of transmission rod is fixedly connected by segmented head 4 with crown beam 2, and the other end and the built-in fitting 10 of arcuately box beam 6 weld It connects;Two bors d's oeuveres fashioned iron or 7 both ends of steel pipe support and the built-in fitting 10 of arcuately box beam 6 weld, after support is set up, the work at both ends Apply prestressing force on headstall 4.
4. being excavated to second support absolute altitude, construct waist rail 3 and the connection with support pile 1.
5. 3. setting up second combined horizontal support construction by above-mentioned steps.
6. being excavated to hole bottom absolute altitude, construction cushion coat 11, bottom plate 12 and bottom plate load transfering strip 13 are simultaneously conserved.
7. after bottom plate 12 and load transfering strip 13 reach design strength, remove second combined horizontal support construction, recycling to Next time utilizes.
8. construction -1 floor plate 15 of basement and floor load transfering strip 16 are simultaneously conserved.
9. removing first of combined horizontal branch after -1 floor plate 15 of basement and floor load transfering strip 16 reach design strength Support structure, recycling are utilized to next time.
10. backfilling the earthwork between support pile 1 and outer wall of basement 14 after the completion of the construction of basement roof 17.
Above only the present invention is further illustrated, and not to limit this patent, all is equivalence enforcement of the present invention, It is intended to be limited solely by within the scope of the claims of this patent.

Claims (3)

1. a kind of large span integral supporting structure, the support system including support pile and crown beam or waist rail, it is characterised in that crown beam Or waist rail is equipped with the horizontal support structure of transmission rod with arcuately box beam and Two bors d's oeuveres fashioned iron or steel pipe support composition, the arcuately case Beam is be welded on Two bors d's oeuveres fashioned iron or steel pipe support both ends horizontally-supported, have it is several with arcuately box beam and Two bors d's oeuveres fashioned iron or Steel pipe support is the steel column of vertical support;In the reinforced concrete upright column stake at steel column lower part insertion hole bottom;The biography Power bar is the rod piece that fashioned iron or steel pipe make, and one end is fixedly connected by segmented head with crown beam or waist rail, the other end and arcuately case Beam welding.
2. large span integral supporting structure according to claim 1, it is characterised in that the arcuately box beam is armored concrete Or the component of prestressed reinforced concrete production, it which is provided with transmission rod and the arcuately built-in fitting of box beam Welding.
3. the construction method of large span integral supporting structure described in a kind of claim 1, it is characterised in that the integral supporting structure It constructs in the steps below:
1. then surveying setting-out after smooth location carries out support pile, steel column and reinforced concrete by design requirement and job specfication Native column pile driving construction;The arcuately box beam and Two bors d's oeuveres fashioned iron of prefabricated reinforced concrete or prestressed reinforced concrete or steel pipe support Splicing production;
2. being excavated to first of support absolute altitude, crown beam of constructing and the connection with support pile;
3. setting up first of horizontal branch combined by arcuately box beam with Two bors d's oeuveres fashioned iron or steel pipe support and segmented head and transmission rod Support structure, transmission rod one end are fixedly connected by segmented head with crown beam, and the other end and the built-in fitting of arcuately box beam weld;Two bors d's oeuveres fashioned iron Or steel pipe support both ends and the built-in fitting of arcuately box beam weld, and after support is set up, apply on the segmented head at both ends and answer in advance Power;
4. being excavated to second support absolute altitude, construct waist rail and the connection with support pile;
5. 3. setting up second combined horizontal support construction by above-mentioned steps;
6. being excavated to hole bottom absolute altitude, construction cushion coat, bottom plate and bottom plate load transfering strip are simultaneously conserved;
7. removing second combined horizontal support construction after bottom plate and load transfering strip reach design strength, recycling is utilized to next time;
8. construction -1 floor plate of basement and floor load transfering strip are simultaneously conserved;
9. first of combined horizontal support construction is removed after -1 floor plate of basement and floor load transfering strip reach design strength, Recycling is utilized to next time;
10. backfilling the earthwork between support pile and outer wall of basement after the completion of basement roof construction.
CN201910402488.3A 2019-05-15 2019-05-15 A kind of large span integral supporting structure and its construction method Pending CN110004942A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910402488.3A CN110004942A (en) 2019-05-15 2019-05-15 A kind of large span integral supporting structure and its construction method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910402488.3A CN110004942A (en) 2019-05-15 2019-05-15 A kind of large span integral supporting structure and its construction method

Publications (1)

Publication Number Publication Date
CN110004942A true CN110004942A (en) 2019-07-12

Family

ID=67177007

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201910402488.3A Pending CN110004942A (en) 2019-05-15 2019-05-15 A kind of large span integral supporting structure and its construction method

Country Status (1)

Country Link
CN (1) CN110004942A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111206592A (en) * 2020-01-15 2020-05-29 天津大学 Construction method of prefabricated steel-concrete combined support foundation pit supporting structure

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111206592A (en) * 2020-01-15 2020-05-29 天津大学 Construction method of prefabricated steel-concrete combined support foundation pit supporting structure

Similar Documents

Publication Publication Date Title
KR100634726B1 (en) Form system for construction of underground slab and method for constructing underground slab and breast wall using the same
CN102505704A (en) Large open caisson construction method in soft geological shaft
CN101775807B (en) Structure for supporting deep foundation pit of soft soil foundation
CN102434717B (en) Construction method of joist steel pipe-jacking work pit
CN101914925A (en) Basement by using optimized composite prefabricated arch wall as external wall
CN101509261B (en) Method for pile plate base for ultra-high voltage electric power line steel tower on soft foundation
CN104947681A (en) Super large super deep basement ground pit construction method
JP2015127501A (en) Unit construction method for solar panel
CN102286980B (en) Steel truss foundation pit supporting structure
CN105089670A (en) Construction method for enlarging and excavating subway station on basis of parallel interval shield tunnel
CN110004942A (en) A kind of large span integral supporting structure and its construction method
CN205188981U (en) Assembled foundation ditch is gone along with sb. to guard him steel pipe concrete and is supported
JP3682704B2 (en) Built-in column construction method without casing
CN102953385A (en) Construction method for changing support of foundation pit at irregular place of rampway
CN103397661B (en) The construction technology of combined exterior wall structure under shaped steel-concrete ground
CN105926635B (en) A kind of vertical rectangular prefabricated components construction equipment, assembly and construction method
CN211257010U (en) Recoverable connection structure of double steel-pipe pile and steel truss crown beam
CN110792103A (en) Underground pipeline with integrated supporting piles and pipeline wall and construction method
JP2000352296A (en) Method o constructing passage just under underground structure
CN108755701A (en) The construction method of the support construction of deep basal pit
CN109457709A (en) A kind of supporting construction and construction method of double-row pile combination wide-angle anchor cable
CN105804093B (en) Prefabricated double-row pile foundation pit supporting construction integrated with water-stop curtain and its construction method
CN202157328U (en) Steel truss type foundation pit supporting structure
JP3133598B2 (en) Construction method of small and medium-sized building with basement floor
CN104912200A (en) Building method of underground shallow layer fully automatic parking garage

Legal Events

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