CN202745061U - Inner supporting connection piece capable of varying size and force transmission direction and used for protecting foundation pit - Google Patents
Inner supporting connection piece capable of varying size and force transmission direction and used for protecting foundation pit Download PDFInfo
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- CN202745061U CN202745061U CN 201220352187 CN201220352187U CN202745061U CN 202745061 U CN202745061 U CN 202745061U CN 201220352187 CN201220352187 CN 201220352187 CN 201220352187 U CN201220352187 U CN 201220352187U CN 202745061 U CN202745061 U CN 202745061U
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- shaped steel
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- foundation pit
- triangle part
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Abstract
The utility model provides an inner supporting connection piece capable of varying a size and a force transmission direction and used for protecting a foundation pit. An enclosing purlin is arranged inside the foundation pit; a structural steel support is connected with the enclosing purlin; a structural steel triangular piece is connected with the end part of the structural steel support; the two lateral surfaces of the structural steel triangular piece are respectively connected with a pair of inverted V-shaped structural steel supports; the other ends of the inverted V-shaped structural steel supports are connected with the enclosing purlin; the structural steel triangular piece internally comprises a standard triangular piece; and the three edges of the standard triangular piece form the expanded structural steel triangular piece by connecting structural steel. According to different foundation pit engineering, a standard connection piece is used as a main body, and the size and the force transmission direction can be changed on the basis of the different foundation pit engineering, so that a new connection piece is manufactured to meet the engineering requirements. After the engineering is completed, the novel connection piece is dismounted to be the main body and fittings. In the next engineering, the inner supporting connection piece can be repeatedly assembled and used according to demands. The connection piece has the advantages of large connection strength, high intensity, direct force transmission, convenience in mounting and dismounting, recovery and cycle utilization and the like; and the purposes of shortening a construction period, reducing an engineering manufacturing cost, and saving resources can be realized.
Description
Technical field
The utility model relates to technical field of civil engineering, particularly the pattern foundation pit supporting structure inner supporting structure.
Background technology
In foundation pit supporting construction, inner support supporting and protection structure is commonly used to be supported, and mainly contains reinforced concrete support and steel pipe support.Existing shaped steel inner support is generally steel pipe support and type steel support, and its specification changes less, encloses purlin and angle brace and is connected being connected to of support and is standard component and is connected, and the size of connector and power transmission angle and method are difficult to change, and bearing capacity is difficult to random adjusting.In the face of various complicated shapes, large-sized pattern foundation pit supporting structure; owing to needing to make a large amount of nonstandard connectors; cause existing steel support arrangement mode and method of attachment all to be difficult to meet the demands; usually tie point can occur and connect the situations such as difficulty and power transmission weak effect, be engaged in and limited the range of application that existing steel supports.
Continuous increase along with the underground space development degree; often can occur that cutting depth is large, area is large, the foundation ditch of special-shaped level; method of attachment, bearing capacity and the power transmission direction of connecting elements had higher requirement between this supported steel, and a kind of connecting elements that can change connection dimension and power transmission direction need to be arranged.Method commonly used is size and the requirement for each tie point at present, is made into nonstandard connector, and this connector can only use once, also can only make waste material after the dismounting and process, and causes a large amount of wastes.In order to make the various deep big foundation pit of safely and reliably supporting of type steel support, reduce the waste of nonstandard connector material, the connector of a kind of and power transmission direction variable-sized based on the standard connector of utility model, this connector adopts the bolt mode to connect, be combined into another connector convenient the decomposition, so not only reduces nonstandard connector cost of manufacture, also reusable, can say, the utility model of this connecting elements is very urgent and necessary.
In addition, can make off-gauge connecting elements based on standard component at the scene, can reduce connector lifting, dismounting and difficulty, thereby can accelerate construction speed.
The utility model content
Technical problem to be solved in the utility model is, overcomes existing pattern foundation pit supporting structure Shaped Steel braced structures and encloses purlin and be connected the difficulty that exists, and provides a kind of pattern foundation pit supporting structure with variable-sized and the inner support connector power transmission direction.
In order to address the above problem, the technical solution of the utility model is such:
A kind of pattern foundation pit supporting structure is with the variable-sized and inner support connector power transmission direction, be provided with in the foundation ditch and enclose purlin, enclose purlin and be connected with type steel support, the type steel support end connects a shaped steel triangle part, the other two sides of shaped steel triangle part connect respectively a pair of shaped steel Eight characters support, and the shaped steel Eight characters support other end is connected to and encloses on the purlin, it is characterized in that, described shaped steel triangle part inside comprises a standard triangle part, and standard triangle part three limits form the shaped steel triangle part that enlarges by connecting shaped steel.
With bolts or the part bolt of the shaped steel that standard triangle part three limits connect connects.
Described shaped steel triangle part is a right angle triangle, and two right-angle sides of right-angled triangle connect the support of the shaped steel Eight characters, and the hypotenuse of right-angled triangle connects the end plate of type steel support.
Described Eight characters support both sides are fish belly sill.
Fish belly sill comprises, lower-cord beam, web member and the muscle that winds up; Lower-cord beam is straight, the muscle that winds up is arc, two ends of lower-cord beam and the muscle that winds up join, the web member lower end that a plurality of length are different is fixed on the lower-cord beam, the upper end contacts with the muscle that winds up, form a fish belly shape structure, the muscle that winds up is applied with prestressing force, and the joint of lower-cord beam and the muscle that is connected connects a pin of Eight characters support.
Also be connected with a support on the top, right angle of described shaped steel triangle part, purlin is enclosed in the other end connection of support.
Described type steel support has the shaped steel more than two to consist of side by side, and bolt connects on the shaped steel length direction.
The described Eight characters supports mutually vertical, and each Eight characters support is comprised of some shaped steel, and shaped steel is bolted the shaped steel triangle part, and the other end of shaped steel encloses purlin by triangle part connection, and this triangle part is pressed in the end that fish belly sill encloses purlin lower-cord beam and the joint of the muscle that winds up.
Beneficial effect, pattern foundation pit supporting structure described in the utility model be with shaped steel inner support syndeton, and the advantages such as support stiffness is large, span is large, distortion can control, easy construction, reusing have reached the purpose of reduction of erection time, reduction construction costs.
Description of drawings
Describe the utility model in detail below in conjunction with the drawings and specific embodiments;
Fig. 1 is pattern foundation pit supporting structure described in the utility model shaped steel inner support syndeton schematic diagram.
Fig. 2 is steel structure girder and the enlarged drawing that encloses purlin and be connected.
Fig. 3 is standard steel section triangle part schematic diagram.
Fig. 4 is that fish belly sill described in the utility model encloses the purlin schematic diagram.
The specific embodiment
For technological means, creation characteristic that the utility model is realized, reach purpose and effect is easy to understand, below in conjunction with concrete diagram, further set forth the utility model.
Referring to Fig. 1, foundation ditch adopts inner supporting structure in the present embodiment, inner support is the steel structure girder 1 to support, steel structure girder 1 two end supports is being enclosed on the purlin, steel structure girder 1 is made of side by side many shaped steel, support side by side for six roots of sensation shaped steel in the present embodiment, six roots of sensation shaped steel laterally interfixes by junction plate, vertically is bolted to reach the length extension.The shaped steel radical that steel structure girder 1 includes is chosen according to the actual loading situation.
Referring to Fig. 2, the end of steel structure girder 1 is provided with end plate 2, and end plate 2 also is to be made of many shaped steel, and end plate 2 is bolted steel structure girder 1, and end plate 2 is used for applying prestressing force.Generally, end plate 2 inside arrange jack, and by end plate 2 power that applies are delivered on the steel structure girder 1.End plate 2 opposite sides then connect a shaped steel triangle part 3, are connecting Eight characters support 4 by shaped steel triangle part 3, and the bipod of Eight characters support 4 is connected to and encloses on the purlin.Described shaped steel triangle part 3 is an isosceles right-angled triangle, and two right-angle sides of isosceles right triangle connect shaped steel Eight characters support 4, and the hypotenuse of isosceles right triangle connects the end plate 2 of steel structure girder 1.Described Eight characters support 4 has orthogonal two legs, every leg is comprised of two groups of shaped steel, the other end that two groups of shaped steel is bolted 3, two groups of shaped steel of shaped steel triangle part connects by a triangle part 5 and encloses purlin, and this triangle part 5 is pressed in that fish belly sill encloses the purlin lower-cord beam and the end of the joint of the muscle that winds up.When the size span of Eight characters support 4 is larger, in order to prevent that the Eight characters from supportting the purlin that encloses inner under 4 hips and being out of shape, support 4 centre positions at the Eight characters, a type steel support 6 is set, type steel support 6 one ends are against and enclose on the purlin, and the other end inserts in the top, right angle of shaped steel triangle part 3 and is bolted.
The size of end plate 2 is chosen according to shaped steel radical and its width that steel structure girder 1 includes, shaped steel triangle part 3 then must coincide with the measure-alike of end plate 2, the transfer function of competence exertion power, but generally the shaped steel triangle part is that the preform sizes size is fixing, the width dimensions of steel structure girder 1 is different in different engineerings, is difficult to meet the demands.Shaped steel triangle part 3 is following structure for this reason, referring to Fig. 3, its inside comprises a standard triangle part 31, standard triangle part 31 is mill work, the arranged outside of standard triangle part 31 have shaped steel and by bolt partly connect the part welding or all bolt connect, form the shaped steel triangle part 3 of a large-size, shaped steel quantity and thickness that standard triangle part 31 outsides install additional are decided according to the width dimensions of steel structure girder 1.The length of its hypotenuse must be coincide with the size of end plate 2.Construct complete after, can pass through demounting bolt, thereby the shaped steel in dismounting standard triangle part 31 outsides recycles and reuses.
Referring to Fig. 4, be provided with fish belly sill in the both sides of the bipod that encloses the support of the Eight characters on the purlin 4 and enclose purlin 7, fish belly sill encloses purlin 7 and comprises a lower-cord beam 71, steel strand 72, web member 73.
Its lower-cord beam 71 is assembled by section steel material; Its steel strand 72 are comprised of many high-strength underrelaxation steel wires, adopt the plastic cement pipe box to play and fill with grease protection and isolation between the every steel strand.
Its web member 73 assembles wooden font or yi word pattern by section steel material; Web member 73 arranges on the string beam 71, and the two ends of steel strand 72 connect lower-cord beam 71 two ends, and the middle part of steel strand 72 is supported by web member 73 and is the fish belly shape.Shaped steel and steel strand are assembled into the purlin that encloses of a fish belly shape structure, steel strand are applied prestressing force, this encloses the purlin span to reach increase, increases to enclose purlin rigidity the purpose of the horizontal distortion of control foundation ditch.
The material of lower-cord beam 71 and web member 73 is high-strength shaped steel, connects with bolt by welding between the shaped steel.Be separate between the many web members 73 or link together with the contact bar.The two ends of enclosing purlin 7 at this fish belly sill need to arrange the strong point.The Eight characters supports two legs and is arranged on this strong point, and the Eight characters that has supports two legs bottoms and is provided with triangle part 5, triangle part 5 be pressed in fish belly sill enclose purlin two end supports point on, i.e. the intersection point place of steel strand 72 and lower-cord beam 71.Triangle part 5 is isosceles right triangle, and the inclined-plane is pressed in and encloses on the purlin, and right-angle side connects Eight characters support.
In the steel structure support of the present embodiment, adjustable triangle part has the following advantages:
On the basis of standard triangle part, increase the outer width of triangle part by outside the standard triangle part, splicing shaped steel, be conducive to wider layout to support, increased support in weak axial bending rigidity.
By scene splicing triangle part, can effectively reduce the weight of standard triangle part, be conducive to on-site hoisting, after using, also for convenience detach.Dismantle complete after, can recycle in the engineering, and can be according to different engineerings next time, set up the triangle part of different size, reach install with remove convenient, recyclable circulation makes, reduction of erection time, reduction construction costs, purpose economizes on resources.
By adjusting the size of triangle part, can increase the rigidity of triangle part, can make the effective transmission to support and Eight characters support internal force that links to each other with triangle part, and by self rigidity, regulate interior equilibrium of forces.
Above demonstration and described basic principle of the present utility model, principal character and advantage of the present utility model.The technician of the industry should understand; the utility model is not subjected to the restriction of above-mentioned example; that describes in above-mentioned example and the manual just illustrates principle of the present utility model; the utility model also has various changes and modifications under the prerequisite that does not break away from the utility model spirit and scope, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (8)
1. a pattern foundation pit supporting structure is with the variable-sized and inner support connector power transmission direction, be provided with in the foundation ditch and enclose purlin, enclose purlin and be connected with type steel support, the type steel support end connects a shaped steel triangle part, the other two sides of shaped steel triangle part connect respectively a pair of shaped steel Eight characters support, and the shaped steel Eight characters support other end is connected to and encloses on the purlin, it is characterized in that, described shaped steel triangle part inside comprises a standard triangle part, and standard triangle part three limits form the shaped steel triangle part that enlarges by connecting shaped steel.
2. a kind of pattern foundation pit supporting structure according to claim 1 is characterized in that with the variable-sized and inner support connector power transmission direction, and the with bolts or part bolt of the shaped steel that standard triangle part three limits connect connects.
3. a kind of pattern foundation pit supporting structure according to claim 1 is with the variable-sized and inner support connector power transmission direction, it is characterized in that, described shaped steel triangle part is a right angle triangle, and two right-angle sides of right-angled triangle connect the support of the shaped steel Eight characters, and the hypotenuse of right-angled triangle connects the end plate of type steel support.
4. a kind of pattern foundation pit supporting structure according to claim 1 is characterized in that with the variable-sized and inner support connector power transmission direction, and described Eight characters support both sides are fish belly sill.
5. a kind of pattern foundation pit supporting structure according to claim 4 is characterized in that with the variable-sized and inner support connector power transmission direction, and fish belly sill comprises, lower-cord beam, web member and the muscle that winds up; Lower-cord beam is straight, the muscle that winds up is arc, two ends of lower-cord beam and the muscle that winds up join, the web member lower end that a plurality of length are different is fixed on the lower-cord beam, the upper end contacts with the muscle that winds up, form a fish belly shape structure, the muscle that winds up is applied with prestressing force, and the joint of lower-cord beam and the muscle that is connected connects a pin of Eight characters support.
6. a kind of pattern foundation pit supporting structure according to claim 1 is characterized in that with the variable-sized and inner support connector power transmission direction, also is connected with a support on the top, right angle of described shaped steel triangle part, and purlin is enclosed in the other end connection of support.
7. a kind of pattern foundation pit supporting structure according to claim 1 is characterized in that with the variable-sized and inner support connector power transmission direction, and described type steel support has the shaped steel more than two to consist of side by side, and bolt connects on the shaped steel length direction.
8. a kind of pattern foundation pit supporting structure according to claim 5 is with the variable-sized and inner support connector power transmission direction, it is characterized in that, described Eight characters support is mutually vertical, each Eight characters support is comprised of some shaped steel, shaped steel is bolted the shaped steel triangle part, the other end of shaped steel encloses purlin by triangle part connection, and this triangle part is pressed in the end that fish belly sill encloses purlin lower-cord beam and the joint of the muscle that winds up.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220352187 CN202745061U (en) | 2012-07-19 | 2012-07-19 | Inner supporting connection piece capable of varying size and force transmission direction and used for protecting foundation pit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220352187 CN202745061U (en) | 2012-07-19 | 2012-07-19 | Inner supporting connection piece capable of varying size and force transmission direction and used for protecting foundation pit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202745061U true CN202745061U (en) | 2013-02-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220352187 Withdrawn - After Issue CN202745061U (en) | 2012-07-19 | 2012-07-19 | Inner supporting connection piece capable of varying size and force transmission direction and used for protecting foundation pit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202745061U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102733397A (en) * | 2012-07-19 | 2012-10-17 | 上海新强劲工程技术有限公司 | Inner supporting connecting element with variable dimension and force transmission direction for retaining and protecting foundation pit |
| CN106759381A (en) * | 2017-03-13 | 2017-05-31 | 上海强劲地基工程股份有限公司 | The arrangement form that the standard connecting key of assembling type steel structure support is connected with support beam |
-
2012
- 2012-07-19 CN CN 201220352187 patent/CN202745061U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102733397A (en) * | 2012-07-19 | 2012-10-17 | 上海新强劲工程技术有限公司 | Inner supporting connecting element with variable dimension and force transmission direction for retaining and protecting foundation pit |
| CN102733397B (en) * | 2012-07-19 | 2014-09-10 | 上海新强劲工程技术有限公司 | Inner supporting connecting element with variable dimension and force transmission direction for retaining and protecting foundation pit |
| CN106759381A (en) * | 2017-03-13 | 2017-05-31 | 上海强劲地基工程股份有限公司 | The arrangement form that the standard connecting key of assembling type steel structure support is connected with support beam |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130220 Effective date of abandoning: 20140910 |
|
| RGAV | Abandon patent right to avoid regrant |