CN205907812U - Take steel frame structure that encorbelments greatly of pull rod - Google Patents

Take steel frame structure that encorbelments greatly of pull rod Download PDF

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Publication number
CN205907812U
CN205907812U CN201620779270.1U CN201620779270U CN205907812U CN 205907812 U CN205907812 U CN 205907812U CN 201620779270 U CN201620779270 U CN 201620779270U CN 205907812 U CN205907812 U CN 205907812U
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CN
China
Prior art keywords
steel
frame
steel frame
layer
pull rod
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Expired - Fee Related
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CN201620779270.1U
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Chinese (zh)
Inventor
刘缉江
倪代俊
李丕俊
曹康武
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China 19th Metallurgical Corp
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China 19th Metallurgical Corp
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Priority to CN201620779270.1U priority Critical patent/CN205907812U/en
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Publication of CN205907812U publication Critical patent/CN205907812U/en
Expired - Fee Related legal-status Critical Current
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Abstract

The utility model discloses a take steel frame structure that encorbelments greatly of pull rod, this steel frame structure has included a core section of thick bamboo and has erect the N layer steel frame on a core section of thick bamboo, and the side lower extreme of steel frame body is equipped with a plurality of layers the floor of encorbelmenting, and unsettled department is equipped with interim steel column and supports, and the steel frame body vertically is equipped with a plurality of axial planes, and being located upper and lower adjacent two -layer steel frame on the axial plane, to pass through the reinforcing pull rod fixed, and the reinforcing pull rod is located the outside of a core section of thick bamboo and is the slope form of " outer down in going up ". The utility model is suitable for a hoist and mount of the steel construction in the structure of encorbelmenting greatly and inside tall and big space, overall structure is stable, and the installation accuracy is high, and factor of safety is high, and the degree of difficulty of wholly being under construction is little.

Description

Large cantilever steel-frame structure with pull bar
Technical field
The utility model is related to building and encorbelments technical field of construction, specifically, is to be related to a kind of large cantilever with pull bar Steel-frame structure.
Background technology
With the development of technology, in modern architecture construction field, skyscraper gradually increases.And for attractive in appearance or technique Demand, skyscraper is often designed with outer cantilevered structure in the middle and upper part of its agent structure high level position, and outer cantilevered structure is usual Outer overhanging steel structure truss is relied on to realize.
In existing constructing structure, cantilevered structure emerges in an endless stream, but being of limited application of existing cantilevered structure, Run into larger encorbelment height and encorbelment span when, existing structure is simultaneously inapplicable, is especially running into inner space floor When high, difficulty of construction is bigger.Specifically, in the Construction of Steel Structure of large space, steel structure hoisting, installation are impacted relatively Greatly;High-formwork construction difficulty is big, and danger coefficient is high;And need to set up high support in work progress to be constructed, encorbelment and high Large-spatial structures lifting, welding procedure difficulty are big.
Drawbacks described above, is worth solving.
Content of the invention
In order to overcome the shortcomings of existing technology, the utility model provides a kind of large cantilever steel-frame structure with pull bar.
Technical solutions of the utility model are as described below:
With the large cantilever steel-frame structure of pull bar, including steel frame body it is characterised in that described steel frame body includes Two vertical Core Walls Structures and the n-layer steel frame being set up on described Core Walls Structure, described steel frame includes girder steel, steel column and reinforcing bar Truss floor support plate, the side lower end of described steel frame body is provided with the floor of encorbelmenting of m layer, and the hanging place of described floor of encorbelmenting is provided with Dismountable interim steel column supports, and described steel frame body is longitudinally provided with some axial planes, neighbouring on described axial plane The described steel frame of two-layer is fixed by reinforcing pull rod, and described reinforcing pull rod is located at the outside of described Core Walls Structure and in " lower outer in upper " Ramped shaped.
Further, number of plies n of described steel frame meets: 7≤n≤16, the described number of floor levels m that encorbelments is not more than 4.
Further, by, in the fixing described steel frame of reinforcing pull rod, every three layers of described steel frame are one group of steel frame group, In steel frame group described in every group, the outer fix of bottom steel frame connects the interposition of middle level steel frame by described reinforcing pull rod Put, the centre position of middle level steel frame is passed through described reinforcing pull rod and connected the position near Core Walls Structure inside top layer steel frame;Upper one The described bottom steel frame organizing described steel frame group is the described top layer steel frame that next organizes described steel frame group.
Further, the top of n-th layer steel frame is provided with top floor.
Further, described axial plane includes the first axial plane, the second axial plane, the 3rd axial plane and the 4th axial plane, and described first Axial plane and described second axial plane are located at side, described 3rd axial plane and described 4th axial plane pair of described steel frame body axial line The opposite side being distributed in described axial line claiming.
Further, in described second axial plane, inside described Core Walls Structure, it is provided with auxiliary reinforcing pull rod, described auxiliary reinforcing pull rod Symmetrical with reinforcing pull rod during year of same layer.
Further, described interim steel column supports the concrete crossover location located at one layer of ground.
Further, it is provided with support with the corresponding underground in described interim steel column Support Position floor.
Further, it is provided with dismountable temporary support moulding bed at the described large space encorbelmented within floor.
According to the utility model of such scheme, its advantage is, the utility model goes for large cantilever knot The lifting of the steel construction of structure and internal large space, going for encorbelmenting highly reaches 10-25 rice, and span of encorbelmenting reaches 15-23 rice Cantilevered structure;Lifting, fixing after the completion of, interim steel column supports and temporary support moulding bed is dismountable, and overall structure is stable, installs High precision, safety coefficient is high, and integral construction difficulty is little;The utility model can also greatly save the engineering time simultaneously.
Brief description
Fig. 1 is the integrally-built side view of the utility model embodiment.
Fig. 2 is the side view that the interim steel column of the utility model embodiment band supports with temporary support moulding bed.
Fig. 3 is the structure top view of the utility model embodiment.
Fig. 4-7 is the side view to the 4th axial plane for the utility model first axial plane.
In in figure, 10, steel frame body;11st, Core Walls Structure;12nd, girder steel;13rd, steel bar truss floor support plate;14th, steel column;20、 Reinforcing pull rod;31st, interim steel column supports;32nd, temporary support moulding bed;41st, the first axial plane;42nd, the second axial plane;43rd, the 3rd axial plane; 44th, the 4th axial plane.
Specific embodiment
Below in conjunction with the accompanying drawings and embodiment conducts further description to the utility model:
Embodiment one
As shown in Figure 1-2, the large cantilever steel-frame structure with pull bar, including steel frame body 10, steel frame body 10 wraps Include two vertical Core Walls Structures 11 and the n-layer steel frame being set up on Core Walls Structure 11, steel frame includes girder steel 12, steel column 14 and steel Muscle truss floor support plate 13, the side lower end of steel frame body 11 is provided with the floor of encorbelmenting of m layer, and the hanging place of floor of encorbelmenting is provided with can The interim steel column of dismounting supports 31, and m+1 layer to n-th layer is pull bar layer, and steel frame body is longitudinally provided with some axial planes, positioned at axle The steel frame of the neighbouring two-layer on face passes through that reinforcing pull rod 20 is fixing, reinforcing pull rod 20 be located at the outside of Core Walls Structure 11 and be in " on In lower outer " ramped shaped.
Number of plies n of steel frame meets: 7≤n≤16, in the present embodiment, n=10, m=3, and construction has on the second layer The large space of one two-layer.
By, in the fixing steel frame of reinforcing pull rod 20, every compound steel framework is one group of steel frame group, in every group of steel frame group, The outer fix of bottom steel frame connects the centre position of middle level steel frame, the centre position of middle level steel frame by reinforcing pull rod 20 Position near Core Walls Structure 11 inside top layer steel frame is connected by reinforcing pull rod 20;The bottom steel frame of upper one group of steel frame group is The top layer steel frame of next group steel frame group.In the present embodiment, 4-6 layer is one group of steel frame group, the side of the 4th layer of steel frame Edge position is connected with the centre position of the 5th layer of steel frame by reinforcing pull rod 20, and reinforcing pull rod is passed through in the centre position of the 5th layer of steel frame 20 are connected near the position of Core Walls Structure 11 with the 6th layer of steel frame;6-8 layer is second group of steel frame group, the side of the 6th layer of steel frame Edge position is connected with the centre position of the 7th layer of steel frame by reinforcing pull rod 20, and reinforcing pull rod is passed through in the centre position of the 7th layer of steel frame 20 are connected near the position of Core Walls Structure 11 with the 8th layer of steel frame;By that analogy, until the centre position of the 9th layer of steel frame is passed through Reinforcing pull rod 20 is connected near the position of Core Walls Structure 11 with the 10th layer of steel frame.
The top of the 10th layer of steel frame is provided with top floor.
As shown in fig. 3 to 7, axial plane includes the first axial plane 41, the second axial plane 42, the 3rd axial plane 43 and the 4th axial plane 44, the One axial plane 41 and the second axial plane 42 are located at the side of steel frame body axial line, the 3rd axial plane 43 and the 4th axial plane 44 symmetrical point It is distributed in the opposite side of axial line.In second axial plane 42, inside Core Walls Structure 11, be provided with auxiliary reinforcing pull rod 20, auxiliary reinforcing pull rod 20 with Layer year when reinforcing pull rod 20 symmetrical.That is, reinforcing pull rod 20 and the 5th layer of steel framework are passed through in the center of inside position of the 4th layer of steel frame Centre position within frame connects, and reinforcing pull rod 20 and the 6th layer of steel frame are passed through near core in the 5th layer of centre position within steel frame The position of heart cylinder 11 connects, by that analogy.
Interim steel column supports the 31 concrete crossover locations located at one layer of ground.
The corresponding underground in 31 positions floor is supported to be provided with support with interim steel column.
Encorbelment and be provided with dismountable temporary support moulding bed 32 at the large space within floor.
Build the construction method of the large cantilever steel frame with pull bar of above-described embodiment, comprise the following steps:
First, water two Core Walls Structures 11, and the steel construction of floor the 1st to the 3rd layer of encorbelmenting is installed;
2nd, in floor encorbelments place and two Core Walls Structures 11, the corresponding steel column locations of span set up interim steel column to support 31, Interim steel column supports 31 to use steel pipe buttress top to install jack;
3rd, the 4th layer of steel frame is installed, and pours the 4th layer of floorslab concrete, the first axial plane 41 and the 4th axial plane 44 Steel frame pre- arch camber 10mm, steel frame includes girder steel, steel column, steel bar truss floor support plate;
The 4th, 5th layer and the 6th layer of steel frame is installed, and the 4th layer to the 6th layer of reinforcing pull rod 20 is installed.Specifically,
1st, carry out the reinforcing pull rod 20 of tensioning the second axial plane 42 using four sets of tensioning equipments simultaneously;It specifically includes step:
1. 4 reinforcing pull rods 20 in first simultaneous tension both sides Core Walls Structure 11 centre position, the reinforcing pull rod at every side Core Walls Structure 11 20 connect the 6th layer of steel frame near the centre position of the position of Core Walls Structure 11 and the 5th layer of steel frame, and connect the 5th layer of steel framework The centre position of frame and the 4th layer of steel frame are away from the position of Core Walls Structure 11;
2. encorbelment 4 reinforcing pull rods 20 at end in simultaneous tension Core Walls Structure 11 both sides, and the reinforcing pull rod 20 at every side Core Walls Structure 11 is even Connect the 6th layer of steel frame near the centre position of the position of Core Walls Structure 11 and the 5th layer of steel frame, and connect the 5th layer of steel frame Centre position and the 4th layer of steel frame are away from the position of Core Walls Structure 11;
3. substep tensioning apply 1000kn pretightning force, makes steel frame disengage interim steel column and supports 31, every side Core Walls Structure 11 The reinforcing pull rod 20 of both sides is in that "eight" shape is distributed.
2nd, carry out the reinforcing pull rod 20 in Core Walls Structure 11 outside of tensioning the 3rd axial plane 43, every side using four sets of tensioning equipments simultaneously Piece reinforcing pull rod 20 in top connect the 6th layer of steel frame near the centre position of the position of Core Walls Structure 11 and the 5th layer of steel frame, under Fang Yigen reinforcing pull rod 20 connects the 5th layer of steel frame centre position and the 4th layer of outer fix, so that the steel in every side Core Walls Structure 11 outside is drawn Bar 20 is in the ramped shaped of " lower outer in upper ", the pretightning force of substep tensioning the 1000kn applying;
3rd, adopt four sets tensioning equipments successively outside the Core Walls Structure 11 of tensioning the first axial plane 41 and the 4th axial plane 44 simultaneously Reinforcing pull rod 20, top one reinforcing pull rod 20 of every side connects the 6th layer of steel frame near the position of Core Walls Structure 11 and the 5th layer of steel frame Centre position, piece reinforcing pull rod 20 in lower section connects the 5th layer of steel frame centre position and the 4th layer of outer fix, makes every side core The reinforcing pull rod 20 in cylinder 11 outside is in the ramped shaped of " lower outer in upper ", applies initial pretightning force using torque wrench.
5th, retain interim steel column and support 31, make to encorbelment end and inside are greatly across vertical deformation close to 0mm;
6th, repeat step three, four, install the 7th layer to the 10th layer of steel frame, and install the 7th layer to the 10th layer of steel and draw Bar 20;During installing 7-10 layer reinforcing pull rod 20, the pretightning force that substep tensioning applies is 500kn.
7th, construction roof and roof trusses layer steel frame;
8th, garret composite floor is arrived in the 7th layer of successively construction successively;
9th, the additional dead loads such as building way, curtain wall are added;
Tenth, add and use live load;
11, remove interim steel column and support 31.
Further, in step 4, the installation process of reinforcing pull rod 20 includes:
The construction of the large space of layer 2-3 is also included, specifically, before setting up large space, at the 2nd layer in the present embodiment First erection temporary support moulding bed 32, then set up the 4th layer of steel frame, remove interim propping up while interim steel column supports 31 removing Support frame 32.
Application Example:
Before being located at Shenzhen City, Guangdong Province within 2016, the ruling by law mansion item body structure in sea is smoothly realized binding.
Ruling by law mansion project adopts unique " balance " design concept, with the band of the Core Walls Structure 11 stress Framed frame of both sides Brace steel frame structural system, applies bridge mode of construction simultaneously, is aided with the high-strength e650 of φ 220mm in fact by arranging steel frame Core brace solves thing both sides 17.4m large cantilever and middle part large span, thus realizing complex Space Idea.This structure Technical approach processing technology is complicated, and installation accuracy requirement is high, still belongs to the first in national house construction engineering.
During project construction, carry out Core Walls Structure 11 steel concrete integrated construction, complete large overhanging steel structure installation, complete entirely State's maximum gauge reinforcing pull rod 20 is constructed and steel construction health monitoring etc. becomes several big technical barriers, is also that can construction plan suitable The key that profit is implemented.
It should be appreciated that for those of ordinary skills, can be improved according to the above description or be converted, And all these modifications and variations all should belong to the protection domain of the utility model claims.
Above in conjunction with accompanying drawing, exemplary description is carried out to the utility model patent it is clear that the reality of the utility model patent Now it is not subject to the restrictions described above, as long as the method design employing the utility model patent is various with what technical scheme was carried out Improve, or the not improved design by the utility model patent and technical scheme directly apply to other occasions, all in this reality With in new protection domain.

Claims (9)

1. the large cantilever steel-frame structure with pull bar, including steel frame body it is characterised in that described steel frame body includes two The vertical Core Walls Structure of root and the n-layer steel frame being set up on described Core Walls Structure, described steel frame includes girder steel, steel column and reinforcing bar purlin Frame floor support plate,
The side lower end of described steel frame body is provided with the floor of encorbelmenting of m layer, and the hanging place of described floor of encorbelmenting is provided with detachably Interim steel column support, described steel frame body is longitudinally provided with some axial planes, the neighbouring two-layer on described axial plane Described steel frame is fixed by reinforcing pull rod, and described reinforcing pull rod is located at outside the slope in " lower outer in upper " of described Core Walls Structure Shape.
2. the large cantilever steel-frame structure with pull bar according to claim 1 is it is characterised in that the number of plies of described steel frame N meets: 7≤n≤16, the described number of floor levels m that encorbelments is not more than 4.
3. the large cantilever steel-frame structure with pull bar according to claim 1 is it is characterised in that fixing by reinforcing pull rod In described steel frame, every three layers of described steel frame are one group of steel frame group, in steel frame group described in every group, outside bottom steel frame Side position passes through the centre position that described reinforcing pull rod connects middle level steel frame, and the centre position of middle level steel frame is drawn by described steel Bar connects the position inside top layer steel frame near Core Walls Structure;The described bottom steel frame of steel frame group described in upper a group is next Organize the described top layer steel frame of described steel frame group.
4. the large cantilever steel-frame structure with pull bar according to claim 1 is it is characterised in that the top of n-th layer steel frame Portion is provided with top floor.
5. the large cantilever steel-frame structure with pull bar according to claim 1 is it is characterised in that described axial plane includes first Axial plane, the second axial plane, the 3rd axial plane and the 4th axial plane, described first axial plane and described second axial plane are located at described steel frame originally The symmetrical opposite side being distributed in described axial line of the side of body axial line, described 3rd axial plane and described 4th axial plane.
6. the large cantilever steel-frame structure with pull bar according to claim 5 is it is characterised in that in described second axial plane, It is provided with auxiliary reinforcing pull rod, during the year of described auxiliary reinforcing pull rod and same layer, reinforcing pull rod is symmetrical inside described Core Walls Structure.
7. the large cantilever steel-frame structure with pull bar according to claim 1 is it is characterised in that described interim steel column supports Located at one layer of the concrete crossover location in ground.
8. the large cantilever steel-frame structure with pull bar according to claim 7 is it is characterised in that prop up with described interim steel column The support corresponding underground in position floor is provided with support.
9. the large cantilever steel-frame structure with pull bar according to claim 1 is it is characterised in that inside described floor of encorbelmenting Large space at be provided with dismountable temporary support moulding bed.
CN201620779270.1U 2016-07-22 2016-07-22 Take steel frame structure that encorbelments greatly of pull rod Expired - Fee Related CN205907812U (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106088337A (en) * 2016-07-22 2016-11-09 中国十九冶集团有限公司 Large cantilever steel-frame structure with pull bar and construction method thereof
CN113089837A (en) * 2021-05-14 2021-07-09 中建八局第二建设有限公司 Environment-friendly steel structure spiral ramp and construction method thereof

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106088337A (en) * 2016-07-22 2016-11-09 中国十九冶集团有限公司 Large cantilever steel-frame structure with pull bar and construction method thereof
CN106088337B (en) * 2016-07-22 2018-08-21 中国十九冶集团有限公司 Large cantilever steel-frame structure with pull rod and its construction method
CN113089837A (en) * 2021-05-14 2021-07-09 中建八局第二建设有限公司 Environment-friendly steel structure spiral ramp and construction method thereof

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C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20170125

Termination date: 20200722

CF01 Termination of patent right due to non-payment of annual fee