CN105839946A

CN105839946A - Brick-concrete structure building lifting add-layer method

Info

Publication number: CN105839946A
Application number: CN201610195826.7A
Authority: CN
Inventors: 贾强; 张鑫; 刘华军; 孙增斌; 邢建; 李鹤
Original assignee: Shandong Jianzhu University
Current assignee: Shandong Jianzhu University
Priority date: 2016-03-31
Filing date: 2016-03-31
Publication date: 2016-08-10
Anticipated expiration: 2036-03-31
Also published as: CN105839946B

Abstract

The invention discloses a brick-concrete structure building lifting add-layer method comprising the following steps: excavating building bottom earthwork so as to expose the bar shaped base; respectively arranging a transfer girder on the inner side and outer side of the building wall, and penetrating traction ropes into the building wall on the bottom of the transfer girders; penetrating the bar shaped base so as to arrange transfer columns, wherein the bottoms of the transfer columns support in the hard soil layer under the bar shaped base; arranging a traction lifting device on the top of the transfer column; cutting off the connecting portion between the transfer girder bottom building wall and the bar shaped base; using the traction lifting device to lift the building up to a set position; excavating earthwork so as to form a ground pit; casting a basement base plate on the bottom of the ground pit, and casting basement walls and the building first floor wall; constructing the basement and the building first floor board; backfilling the earthwork outside the basement walls in the ground pit, and recovering the ground. The lifting method can realize framework structure building add-layer and basement adding, can prevent roofing waterproof and heat-insulation layer repetition construction, and can reinforce ground floor members.

Description

Building with brick-concrete structure promotes and increases layer method

Technical field

The present invention relates to a kind of building building technology, a kind of method utilizing lifting implementation existing building to increase layer, tool Saying of body is that a kind of building with brick-concrete structure promotes increasing layer method.

Background technology

It is protection land resource that existing building increases layer, expands usable floor area, promotes the effective ways using function.In building Thing top increases layer to be needed to remove the insulation of former roofing and waterproof layer, the new insulation and waterproof of constructing at the top of newly-increased structure sheaf Layer, easily causes the waste of resource；Meanwhile, increasing layer and make original structure load increase, the vertical member bearing capacity bottom building is not Foot, need reinforcement process.

Summary of the invention

It is an object of the invention to as overcoming above-mentioned the deficiencies in the prior art, it is provided that a kind of building with brick-concrete structure promotes and increases layer method, After building with brick-concrete structure is promoted, more than ground, bottom, increase layer with underground, expand building usable floor area.

For achieving the above object, the present invention uses following technical proposals:

Building with brick-concrete structure promotes and increases layer method, comprises the following steps:

Step 1: the earthwork bottom excavation building, exposes strip footing；

Step 2: all lay transform beams inside and outside the building masonry wall of strip footing end face, to be sandwiched in by building masonry wall Between transform beams, the building masonry wall bottom transform beams penetrates pull rope；

Step 3: laying exchange pillar through strip footing, exchange pillar bottom support is on the hard soil layer of strip footing bottom；

Step 4: install traction enhancement device at exchange pillar top, is connected pull rope with traction enhancement device；

Step 5: make traction enhancement device tighten up pull rope, the junction of building masonry wall bottom transform beams with strip footing is cut Disconnected；

Step 6: traction enhancement device works on, and building is promoted to setting position；

Step 7: the earthwork below excavation strip footing, forms foundation ditch；

Step 8: build basement bottom board at foundation ditch bottom pour mold, pours basement wall and one layer of building immediately below building masonry wall Body of wall；

Step 9: removal traction enhancement device and pull rope, removes exchange pillar and transform beams, carries out basement and one layer of building The construction of floor；

Step 10: the earthwork in the backfill external foundation ditch of basement wall, recovers ground.

Preferably, in described step 2, the connecting key of passing through building body of wall, traction are set along transform beams interval setpoint distance Restrict and pass along connecting key building wall body bottom connecting key.

Preferably, the vertical building masonry wall of described connecting key is laid；It is easier to lay and implements, more save connecting key material, Traction enhancement process is relatively reliable.

In described step 3, exchange pillar is laid in inside and outside building masonry wall, and the installation position of exchange pillar and pull rope Corresponding.

Described traction enhancement device is hoist engine or Lift-slab machine.

Described pull rope is steel wire rope.

Concretely comprising the following steps of described step 4: install hoist engine or Lift-slab machine at exchange pillar top, pull rope is penetrated hoist engine Or the drum barrel of Lift-slab machine.

Concretely comprising the following steps of described step 5: start hoist engine or Lift-slab machine, after making pull rope tighten up painstakingly, closes down hoist engine Or Lift-slab machine, the junction of building masonry wall bottom transform beams with strip footing is blocked.

In described step 7, the degree of depth of earth excavation is equal to one layer or the floor height of two-layer basement.

The operation principle of the present invention is:

Clamp building masonry wall by arranging transform beams, and between transform beams, lay connecting key, connecting key penetrate traction Rope, as the instrument promoting building；All lay exchange pillar in building masonry wall both sides, exchange pillar traction enhancement is installed Device, after building being promoted to setting position by traction enhancement device after being connected with pull rope, earth excavation construction basement And one layer of building, utilize lifting to increase layer to realize existing building.

The invention have the benefit that

The present invention utilizes the method for jacking to achieve frame structure building to add layer and set up basement, it is to avoid roof waterproof and Heat-insulation layer repeat construction and the reinforcing of infrastructure.

The method that the present invention promotes decrease compared with jacking method the resting of the carrying of cushion block and jacking process (during jacking, Often rise to the stroke of a jack, about 20cm, just need to rest and cushion block is installed).

It addition, lifting process building is along promoting circuit walking, being not susceptible to skew, process is more easy to control, economic benefit Significantly.

Accompanying drawing explanation

Building with brick-concrete structure elevation before Fig. 1 lifting；

Building with brick-concrete structure plane graph before Fig. 2 lifting；

Fig. 3 earth excavation, exposes basic schematic；

Fig. 4 is at the elevation of strip footing both sides construction concrete transform beams；

Fig. 5 is at the plane graph of strip footing both sides construction concrete transform beams；

Fig. 6 is at strip footing both sides construction stake elevation；

Fig. 7 is at strip footing both sides construction stake plane graph；；

Fig. 8 installs the elevation of hoist engine on stake top；

Fig. 9 installs the plane graph of hoist engine on stake top；

Figure 10 blocks the connection diagram of body of wall and basis；

Figure 11 promotes upper building schematic diagram；

Figure 12 excavates the earthwork schematic diagram of infrastructure and basement；

Figure 13 constructs the body of wall schematic diagram of basement bottom board, basement wall and one layer of building；

Figure 14 removes stake, transform beams, construction basement and one layer of building beam slab, and the backfill earthwork, recovery ground show It is intended to；

In figure, 1. body of wall；2. strip footing；3. concrete beam plate；4. basis bearing stratum；The hardest soil layer；6. mixed Solidifying soil transform beams；7. underpinned pile；8. steel wire rope；9. hoist engine；10. body of wall space after basis is blocked；11. newly-increased ground Lower room beam slab；12. increase body of wall newly；13. increase basement bottom board newly；14. increase bottom beam slab newly.

Detailed description of the invention

The present invention is further described with embodiment below in conjunction with the accompanying drawings.

Embodiment:

By three layer three as a example by the building of brick mix structure strip footing, Fig. 1 and Fig. 2 is original brick-and-concrete buildings before promoting The schematic diagram of thing, this building masonry wall 1 is supported by strip footing 2, by 3 between body of wall 1 in bearing stratum 4 bottom, basis Layer concrete beam slab 3 connects, and basis bearing stratum 4 bottom support is on hard soil layer 5.

As shown in Fig. 3-Figure 14, by three layer three as a example by the building of brick mix structure strip footing, building promotes and increases layer method Including procedure below:

(1) earthwork bottom excavation building, exposes strip footing 2.

(2) at strip footing 2 end face, the both sides pouring reinforcement concrete transform beams 6 of inside and outside body of wall 1, to clamp body of wall. The armored concrete connecting key of body of wall is passed through every about 3 meters settings, to increase the globality of both sides transform beams along transform beams 6. Meanwhile, bottom connecting key, penetrate steel wire rope 8, as the instrument promoting building.

(3) relevant position penetrating steel wire rope 8 inside and outside body of wall 1 arranges underpinned pile 7, underpinned pile 7 by methods such as borings Steel-pipe pile or concrete-pile can be selected.Underpinned pile 7 end, is supported on hard soil layer 5.

(4) installing hoist engine 9 (or Lift-slab machine) on underpinned pile 7 top, steel wire rope 8 penetrates hoist engine 9 (or Lift-slab machine) Drum barrel.Start hoist engine 9 (or Lift-slab machine) make steel wire rope 8 tighten up painstaking after, stop turning of hoist engine 9 (or Lift-slab machine) Dynamic.

(5) connection of wall segment 1, body of wall 1 between body of wall 1 and strip footing 2 top are blocked bottom concrete transform beams 6 And there is gap between strip footing 2, i.e. body of wall space 10 after basis is blocked.

(6) continue to start hoist engine 9 (or Lift-slab machine) to overall increase to building push up position close to underpinned pile 7.

(7) earth excavation below building, the degree of depth is that the floor height of one or two layer of basement (needs and stake according to using function Buried depth determine), formed foundation ditch.

(8) build concrete of basement base plate at foundation ditch bottom pour mold, i.e. increase basement bottom board 13 newly, original building body of wall 1 just under Side pours the wall of concrete basement.

(9) one layer of body of wall of construction building thing is continued, at original building body of wall 1 newly-increased body of wall 12 formed below.

After (10) one layers of body of wall are connected with original building body of wall 1, dismounting underpinned pile 7 pushes up hoist engine 9 (or Lift-slab machine) and steel Cord 8, removes underpinned pile 7 and body of wall 1 both sides concrete transform beams 6.

(11) construction basement and the floor of a layer, i.e. increase basement beam slab 11 newly and increase bottom beam slab 14 newly.

(12) earthwork in the outer foundation ditch of backfill basement wall, recovers ground.

Although the detailed description of the invention of the present invention is described by the above-mentioned accompanying drawing that combines, but not to scope Limiting, one of ordinary skill in the art should be understood that, on the basis of technical scheme, those skilled in the art are not required to Various amendments that creative work to be paid can be made or deformation are still within protection scope of the present invention.

Claims

1. building with brick-concrete structure promotes and increases layer method, it is characterized in that, comprises the following steps:

Step 1: the earthwork bottom excavation building, exposes strip footing；

Step 7: the earthwork below excavation strip footing, forms foundation ditch；

2. building with brick-concrete structure as claimed in claim 1 promotes and increases layer method, it is characterized in that, in described step 2, and edge Transform beams interval setpoint distance arranges the connecting key of passing through building body of wall, and pull rope is along connecting key building bottom connecting key Pass in thing body of wall.

3. building with brick-concrete structure as claimed in claim 2 promotes and increases layer method, it is characterized in that, described connecting key is vertically built Build thing body of wall to lay.

4. building with brick-concrete structure as claimed in claim 1 promotes and increases layer method, it is characterized in that, in described step 3, and torr Change post to be laid in inside and outside building masonry wall, and exchange pillar is corresponding with the installation position of pull rope.

5. building with brick-concrete structure as claimed in claim 1 promotes and increases layer method, it is characterized in that, described traction enhancement device For hoist engine or Lift-slab machine.

6. building with brick-concrete structure as claimed in claim 1 or 2 promotes and increases layer method, it is characterized in that, described pull rope is Steel wire rope.

7. building with brick-concrete structure as claimed in claim 5 promotes and increases layer method, it is characterized in that, described step 4 concrete Step is: install hoist engine or Lift-slab machine at exchange pillar top, pull rope penetrates the drum barrel of hoist engine or Lift-slab machine.

8. building with brick-concrete structure as claimed in claim 5 promotes and increases layer method, it is characterized in that, described step 5 concrete Step is: start hoist engine or Lift-slab machine, after making pull rope tighten up painstakingly, closes down hoist engine or Lift-slab machine, at the bottom of transform beams Portion's building masonry wall blocks with the junction of strip footing.

9. building with brick-concrete structure as claimed in claim 1 promotes and increases layer method, it is characterized in that, excavates in described step 7 The degree of depth of the earthwork is equal to one layer or the floor height of two-layer basement.