CN2793162Y - Symmetrical steel supporting structure with multiple diagonal bracings and large space - Google Patents

Symmetrical steel supporting structure with multiple diagonal bracings and large space Download PDF

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Publication number
CN2793162Y
CN2793162Y CN 200520026040 CN200520026040U CN2793162Y CN 2793162 Y CN2793162 Y CN 2793162Y CN 200520026040 CN200520026040 CN 200520026040 CN 200520026040 U CN200520026040 U CN 200520026040U CN 2793162 Y CN2793162 Y CN 2793162Y
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CN
China
Prior art keywords
brace summer
brace
supporting
support
install
Prior art date
Application number
CN 200520026040
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Chinese (zh)
Inventor
潘建忠
杜有亮
史广德
李建军
王少华
冯宝鸿
宋红云
Original Assignee
天津一建机施钢结构工程有限公司
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Publication date
Application filed by 天津一建机施钢结构工程有限公司 filed Critical 天津一建机施钢结构工程有限公司
Priority to CN 200520026040 priority Critical patent/CN2793162Y/en
Application granted granted Critical
Publication of CN2793162Y publication Critical patent/CN2793162Y/en

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Abstract

The utility model belongs to a symmetrical steel supporting structure with multiple diagonal bracings and large space of a steel supporting beam in a supporting system of a building foundation pit. The utility model has the essential technical characteristics that the supporting beam is formed by the mutually fixed installation and connection of standard sections, and the fixed installation of the supporting beam and a supporting ring beam of the foundation pit adopts the fixed installation of the diagonal bracings and the fixed installation of the supporting beam; the supporting beam is fixedly provided with an expansion section. The utility model solves the problems of difficult disassembly, labor wastage, time wastage, noise pollution, etc. existing when a traditional concrete structure supporting is adopted in the foundation pit with large area. The utility model has the advantages of steel saving and low cost because of the adoption of the connecting form of the standard sections, and is suitable for the foundation pit with the large space more than 4000 square meters and large tonnage from 150 tons to 400 tons.

Description

Many diagonal braces, large space opposite supporting type steel support structure
Technical field
The utility model belongs to a kind of support beam structure of building foundation pit support system, especially a kind of many diagonal braces of steel brace summer, large space opposite supporting type steel support structure.
Background technology
After having beaten foundation pit supporting pile, for reducing the structural cost of soldier pile, improve architecture quality, the control structure distortion needs level to install which floor brace summer on the pattern foundation pit supporting structure ring beam that soldier pile is poured into a mould.Existing brace summer adopts traditional concrete support structure system, is four cubic box structures that angle steel constituted, several batten plates of uniform welding on the outer cylinder of this box structure, and the end of this brace summer and collar tie beam are affixed by bolt.At present, the length of side of brace summer, length are carried out field machining according to actual needs, and are disposable machine-shaping; After engineering completion, again with the brace summer cutting, unload then and abandon.This mode not only loss a large amount of steel, and the requirement on machining accuracy of brace summer is higher, its installing/dismounting technology more complicated, efficient is lower.In addition, to the brace summer more than 100 meters, existing brace summer is an one steel member, and this structure can be stretched along with variation of temperature, causes the distortion of foundation ditch, thereby may have influence on the safety of surrounding buildings thing.
Summary of the invention:
The purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of overall structure advantages of simple, reusable, many diagonal braces, large space, large-tonnage opposite supporting type steel support structure that expansion joint is installed on brace summer are provided.
The purpose of this utility model is achieved in that
These many diagonal braces, large space opposite supporting type steel support structure, adopt the tower structure of angle steel formation and around framework, weld batten plate as brace summer, adpting flange has been welded in the end of brace summer, this adpting flange installs and is welded on the pattern foundation pit supporting structure ring beam by bolt mutually, it is characterized in that: brace summer is installed mutually by standard knot and is formed by connecting, installing of this brace summer and pattern foundation pit supporting structure ring beam also adopts the diagonal brace that installs with brace summer to install, and is fixed with expansion joint on brace summer.
And, described expansion joint is packed between two standard knots of brace summer, concrete structure is: all install a profile iron by flange and support on the end face of two standard knots of a brace summer, on the end face that these two profile irons support, install the connection joint by flange, be filled with expanding material between these two connection joints, this expansion joint is with one outward and is packed in the expansion overcoats that two profile irons support respectively.
And, affixed, the expansion joint between the described standard knot various install into bolt affixed; Affixed employing welding manner between diagonal brace and standard knot, tie-rod and standard knot tie-beam and the standard knot.
Advantage of the present utility model and good effect are:
1. solved problems such as supporting the dismounting difficulty that adopts traditional concrete support structure to exist, time-consuming, noise pollution in the large-scale excavation.
2. adopt many diagonal braces and single, double, mix support applied in any combination method, changed existingly to support structure, make the overall structure of brace summer more firm; Can solve square, rectangle or the rectangle of arbitrary section size and the interior support problem of foundation ditch of square compound section.
3. the form of brace summer employing standard knot connection, and member only has four types, and the node highly versatile supports the standardization level height, can be according to the stressed size of different rod members, selected member model.
4. owing to adopted expansion joint, make brace summer be subjected to the effect of a power opposite in advance, thereby reduce foundation pit deformation effectively, improved the safety of foundation ditch surrounding buildings thing with soil pressure.
5. the steel support system can provide the excavation space of soil excavation for large-scale excavation, so soil excavation mechanization degree height.
6. compare with general steel support, save steel, reduce cost; General every square metre of foundation ditch of support system needs 23kg/m 2, adopt structure of the present utility model only to be 1723kg/m 2Simultaneously, be convenient to the reinforcement construction of base plate of foundation pit, be applicable to that large space is that foundation ditch is space more than 4000 square metres, the tonnage large-tonnage at the 150-400 ton because support system is a lattice.
Description of drawings
Fig. 1 is the structural representation of the utility model dual-gripper beam;
Fig. 2 is the structural representation of the utility model list brace summer;
Fig. 3 is the structural representation of brace summer standard knot;
Fig. 4 is that the A-A of Fig. 3 is to cross-sectional view;
Fig. 5 is the structural representation of cross standard knot of the present utility model;
Fig. 6 is 90 ° of structural representations with 45 ° of standard knots of the present utility model;
Fig. 7 is the structural representation of two 45 ° of standard knots of the present utility model;
Fig. 8 is the structure sectional view of expansion joint of the present utility model.
The specific embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is further described:
Many diagonal braces that the utility model is related, large space opposite supporting type steel support structure, this brace summer 2 is to adopt the quadro frame formula structure that angle steel 8 constitutes (cross section can be square or rectangle, be example with the square in the present embodiment), and longitudinal separation is uniform around the framework is welded with a plurality of batten plates 7, adpting flange 6 all has been welded in two ends of brace summer, this adpting flange installs mutually and is welded on by bolt on the pattern foundation pit supporting structure ring beam (not having label among the figure), brace summer in the present embodiment is installed mutually by standard knot and is formed by connecting, length is generally 9 meters (referring to Fig. 3), standard knot has four kinds of component forms, it among Fig. 3 the standard knot of straight section, Fig. 5 is the cross standard knot, Fig. 6 is 90 ° and 45 ° of standard knots, and Fig. 7 is two 45 ° of standard knots.The cross-sectional view of standard knot is referring to Fig. 4.Adopt bolt (not having label) affixed mutually by adpting flange between the standard knot.The brace summer that is constituted can adopt parallel twin beams mode (as Fig. 1), also can adopt single-beam form (as Fig. 2).For the twin beams form, being fixed with mutually between these two brace summers increases brace summer intensity and makes the common stressed tie-rod 5 of two brace summers, generally installs tie-rod in brace summer length when 10-15 rice is above, is fixed with two tie-rods in Fig. 1; On two brace summers also respectively symmetry be fixed with the diagonal brace 1 that can install with the pattern foundation pit supporting structure ring beam, between the brace summer of two diagonal brace positions that these two brace summers install, be fixed with tie-beam 3, its effect is similar with tie-rod.For the single-beam form, also symmetry is fixed with diagonal brace on brace summer.
On many diagonal braces, large space opposite supporting type brace summer (being generally more than 100 meters), be fixed with expansion joint 4.Expansion joint is packed between two standard knots of brace summer, the concrete structure of this expansion joint is (referring to Fig. 8): all be fixed with profile iron by flange and support 9,15 on the end face of two standard knots of a brace summer, on the end face that these two profile irons support, be fixed with by flange respectively and connect joint 12,14, the end face that connects joint is a sealed condition, be filled with expanding material 13 between these two connection joints, this expansion joint is with one outward and is packed in the expansion overcoats 11 that two profile irons support by screw 10 respectively.
Profile iron supports, connection saves and expansion joint also is the tower structure that is similar to standard knot.
Carry out as follows the adjustment location of expansion joint:
The brace summer at expansion joint two ends is behind installation in position, connecting the hydraulic buckling device of placing between the joint just like jack, will connect joint to both sides push open and the installation screw that makes in advance processing with after the screw of expansion joint overcoat overlaps, mounting screw on screw, remove the hydraulic buckling device then, and the filling expanding material gets final product between the connection joint.
Affixed, expansion joint between the above-mentioned standard knot various install into bolt affixed; Affixed employing welding manner between diagonal brace and standard knot, tie-rod and standard knot tie-beam and the standard knot.

Claims (4)

1. diagonal brace more than a kind, large space opposite supporting type steel support structure, adopt the tower structure of angle steel formation and around framework, weld batten plate as brace summer, adpting flange has been welded in the end of brace summer, this adpting flange installs and is welded on the pattern foundation pit supporting structure ring beam by bolt mutually, it is characterized in that: brace summer is installed mutually by standard knot and is formed by connecting, installing of this brace summer and pattern foundation pit supporting structure ring beam also adopts the diagonal brace that installs with brace summer to install, and is fixed with expansion joint on brace summer.
2. many diagonal braces according to claim 1, large space opposite supporting type steel support structure, it is characterized in that: brace summer can adopt parallel twin beams mode, between these two brace summers, be fixed with tie-rod mutually, between the brace summer of two diagonal brace positions that these two brace summers install, be fixed with tie-beam.
3. many diagonal braces according to claim 1, large space opposite supporting type steel support structure, it is characterized in that: described expansion joint is packed between two standard knots of brace summer, concrete structure is: all install a profile iron by flange and support on the end face of two standard knots of a brace summer, on the end face that these two profile irons support, install the connection joint by flange, be filled with expanding material between these two connection joints, this expansion joint is with one outward and is packed in the expansion overcoats that two profile irons support respectively.
4. according to claim 1 or 2 or 3 described many diagonal braces, large space opposite supporting type steel support structure, it is characterized in that: affixed, the expansion joint between the described standard knot various install into bolt affixed; Affixed employing welding manner between diagonal brace and standard knot, tie-rod and standard knot tie-beam and the standard knot.
CN 200520026040 2005-06-01 2005-06-01 Symmetrical steel supporting structure with multiple diagonal bracings and large space CN2793162Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 200520026040 CN2793162Y (en) 2005-06-01 2005-06-01 Symmetrical steel supporting structure with multiple diagonal bracings and large space

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 200520026040 CN2793162Y (en) 2005-06-01 2005-06-01 Symmetrical steel supporting structure with multiple diagonal bracings and large space

Publications (1)

Publication Number Publication Date
CN2793162Y true CN2793162Y (en) 2006-07-05

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101260671B (en) * 2008-04-10 2010-06-02 王平 Deep pit trussed-beam type inner support prestressed force applying method
CN102852149A (en) * 2012-09-14 2013-01-02 同济大学 Multi-fulcrum and axial-force-adjustable type steel support
CN102962596A (en) * 2012-11-06 2013-03-13 大连船舶重工船业有限公司 Installation method of framework main body inclined support of single-point mooring system manifold platform structure
CN103276748A (en) * 2013-05-17 2013-09-04 广州机施建设集团有限公司 Steel template system used for subway foundation pit supporting beam
CN103437359A (en) * 2013-08-13 2013-12-11 浙江博雷重型机床制造有限公司 Triangular transfer block
CN103437366A (en) * 2013-08-19 2013-12-11 浙江博雷重型机床制造有限公司 Prestress loading device connecting part
CN103437361A (en) * 2013-08-13 2013-12-11 浙江博雷重型机床制造有限公司 Opposite-supporting transit component for internal supporting system for foundation pit supporting
CN103452119B (en) * 2013-08-19 2016-05-11 浙江博雷重型机床制造有限公司 The prestressing force charger of pattern foundation pit supporting structure inner support system

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101260671B (en) * 2008-04-10 2010-06-02 王平 Deep pit trussed-beam type inner support prestressed force applying method
CN102852149A (en) * 2012-09-14 2013-01-02 同济大学 Multi-fulcrum and axial-force-adjustable type steel support
CN102962596A (en) * 2012-11-06 2013-03-13 大连船舶重工船业有限公司 Installation method of framework main body inclined support of single-point mooring system manifold platform structure
CN103276748A (en) * 2013-05-17 2013-09-04 广州机施建设集团有限公司 Steel template system used for subway foundation pit supporting beam
CN103276748B (en) * 2013-05-17 2015-05-20 广州机施建设集团有限公司 Steel template system used for subway foundation pit supporting beam
CN103437359A (en) * 2013-08-13 2013-12-11 浙江博雷重型机床制造有限公司 Triangular transfer block
CN103437361A (en) * 2013-08-13 2013-12-11 浙江博雷重型机床制造有限公司 Opposite-supporting transit component for internal supporting system for foundation pit supporting
CN103437361B (en) * 2013-08-13 2016-01-06 浙江博雷重型机床制造有限公司 Pattern foundation pit supporting structure inner support system to support transfer parts
CN103437359B (en) * 2013-08-13 2016-01-06 浙江博雷重型机床制造有限公司 Triangular transfer block
CN103437366A (en) * 2013-08-19 2013-12-11 浙江博雷重型机床制造有限公司 Prestress loading device connecting part
CN103452119B (en) * 2013-08-19 2016-05-11 浙江博雷重型机床制造有限公司 The prestressing force charger of pattern foundation pit supporting structure inner support system
CN103437366B (en) * 2013-08-19 2016-06-08 浙江博雷重型机床制造有限公司 The connection member of prestressing force charger

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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: 20060705

Termination date: 20140601

C17 Cessation of patent right