CN104947688A - Detachable combined variable-cross section steel middle beam - Google Patents
Detachable combined variable-cross section steel middle beam Download PDFInfo
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 87
- 239000010959 steel Substances 0.000 title claims abstract description 87
- 238000010276 construction Methods 0.000 claims description 11
- 238000009434 installation Methods 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 6
- 230000000694 effects Effects 0.000 claims description 3
- 230000008859 change Effects 0.000 claims description 2
- 230000008569 process Effects 0.000 claims description 2
- 238000005452 bending Methods 0.000 abstract description 8
- 239000000463 material Substances 0.000 abstract description 4
- 239000002699 waste material Substances 0.000 abstract description 4
- 239000003351 stiffener Substances 0.000 abstract description 3
- 238000011437 continuous method Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 239000004567 concrete Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000011150 reinforced concrete Substances 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 238000004873 anchoring Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
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Abstract
本发明公开了一种可拆卸组合式变截面型钢腰梁，是由等截面槽钢腰梁、变截面槽钢腰梁与连接装置共同构成，所述的等截面槽钢腰梁由等截面槽钢及其上加工的锚杆孔、螺栓孔组成，位于结构受剪区，主要承受剪力作用；所述的变截面槽钢腰梁由变截面槽钢及其上设置的加劲肋、螺栓孔组成，位于结构受弯区，主要承受弯矩作用；所述的连接装置由连接板及其上加工的螺栓孔组成，用于将等截面和变截面槽钢腰梁连接组合在一起。变截面槽钢腰梁在端部位置进行变截面处理，端部截面渐变至与等截面槽钢腰梁相同。本发明针对不同受力区采用不同截面的型钢，有效解决了普通型钢腰梁承载不足或钢材浪费等问题，具有重量轻、拆装方便、可回收利用等优点。
The invention discloses a detachable combined variable-section steel waist beam, which is composed of equal-section channel steel waist beams, variable-section channel steel waist beams and connecting devices. The equal-section channel steel waist beam is composed of equal-section channel Steel and the bolt holes and bolt holes processed on it are located in the shear area of the structure and mainly bear the shear force; the variable-section channel steel waist beam is composed of variable-section channel steel and the stiffeners and bolt holes set on it It is located in the bending area of the structure and mainly bears the bending moment; the connecting device is composed of a connecting plate and bolt holes processed on it, and is used to connect and combine channel steel waist beams with equal cross-section and variable cross-section. The variable cross-section channel steel waist beam is treated with variable cross section at the end position, and the end cross section gradually changes to be the same as the constant cross section channel steel waist beam. The invention adopts shaped steels with different cross-sections for different stressed areas, effectively solves the problems of insufficient bearing capacity of common shaped steel waist beams or waste of steel materials, and has the advantages of light weight, convenient disassembly and assembly, and recyclable utilization.
Description
技术领域 technical field
本发明涉及基坑工程支护技术领域，尤其涉及一种应用于基坑支护结构的可拆卸组合式变截面型钢腰梁。 The invention relates to the technical field of foundation pit engineering support, in particular to a detachable combined variable-section steel waist beam applied to foundation pit support structures.
背景技术 Background technique
随着经济技术的发展与人口数量的增加，城市高层建筑越来越多，几乎每座高层建筑都需要开挖基坑，且基坑多数需要支护。基坑支护时腰梁是常用的支护构件，腰梁也称肋梁，其作用是传递围护结构和锚杆之间的水平力，主要承受弯矩和剪力作用。目前，腰梁一般有钢筋混凝土梁和钢梁两种。钢筋混凝土梁以混凝土为材料制成，在腰梁使用中占主导地位，但其施工繁琐，且不可回收再利用；钢梁是以型钢为材料制成，具有自重小、承载力大、施工简单、操作方便等优点，逐渐被广泛使用。 With the development of economy and technology and the increase of population, there are more and more high-rise buildings in cities. Almost every high-rise building needs to excavate foundation pits, and most of the foundation pits need support. Waist beams are commonly used support components in foundation pit support. Waist beams are also called rib beams. Their function is to transmit the horizontal force between the enclosure structure and the anchor rod, and mainly bear the bending moment and shear force. At present, there are generally two types of lumbar beams: reinforced concrete beams and steel beams. Reinforced concrete beams are made of concrete and play a dominant role in the use of waist beams, but their construction is cumbersome and cannot be recycled; steel beams are made of section steel, which has small self-weight, large bearing capacity, and simple construction , easy to operate and other advantages, gradually being widely used.
实际工程中，腰梁各部位受力是不均匀的，锚杆连接部位受剪力较大，桩和梁接触部位受弯矩较大。传统的钢梁一般为等截面梁，这样的腰梁虽然制作简单，但是不考虑受力区的变化采用同一截面的型钢材料，不仅造成了钢材的浪费，且重量大、承载能力差，严重时会导致支护失效；此外，基坑工程施工完成后，大量的型钢材料被永久埋于地下，造成资源浪费与环境污染。考虑到腰梁承载力的提升和回收利用，并且针对不同的受力区采用变化截面的腰梁，目前尚未有相应的产品或文献介绍。 In actual engineering, the force on each part of the waist beam is uneven, the shear force is relatively large at the connection part of the anchor rod, and the bending moment is relatively large at the contact part between the pile and the beam. Traditional steel beams are generally equal-section beams. Although such waist beams are simple to manufacture, they use steel materials of the same section without considering the change of the force-bearing area, which not only causes waste of steel, but also has a large weight and poor bearing capacity. It will lead to support failure; in addition, after the foundation pit construction is completed, a large number of section steel materials are permanently buried underground, resulting in waste of resources and environmental pollution. Considering the improvement and recycling of the lumbar beam bearing capacity, and the use of waist beams with varying cross-sections for different load-bearing areas, there are no corresponding products or literature introductions.
发明内容 Contents of the invention
本发明的目的在于提供一种可拆卸组合式变截面型钢腰梁，针对不同受力区采用不同截面的型钢腰梁，能够有效解决普通型钢腰梁承载能力差、钢材利用率低等问题，且其重量轻、拆装方便、可回收利用。 The purpose of the present invention is to provide a detachable combined variable-section steel lumbar beam, which adopts different cross-section steel lumbar beams for different stress areas, which can effectively solve the problems of poor bearing capacity and low steel utilization rate of ordinary steel waist beams, and It is light in weight, easy to disassemble and assemble, and can be recycled.
本发明可拆卸组合式变截面型钢腰梁的构造为：由等截面槽钢腰梁、变截面槽钢腰梁和连接装置组成；所述的等截面槽钢腰梁由等截面槽钢及其上加工的锚杆孔和螺栓孔组成，位于结构受剪区，主要承受剪力作用；所述的变截面槽钢腰梁由变截面槽钢及其上设置的加劲肋和螺栓孔组成，位于结构受弯区，主要承受弯矩作用，变截面槽钢腰梁在端部位置进行变截面处理，端部截面渐变至与等截面槽钢腰梁相同；所述的连接装置为带有螺栓孔的连接板，用于将等截面槽钢腰梁和变截面槽钢腰梁组合在一起。 The structure of the detachable combined variable-section steel waist beam of the present invention is: it is composed of equal-section channel steel waist beam, variable-section channel steel waist beam and connecting device; the equal-section channel steel waist beam is composed of equal-section channel steel and its It is composed of bolt holes and bolt holes processed on the structure, located in the shear area of the structure, and mainly bears the shear force; The bending area of the structure mainly bears the action of bending moment. The variable cross-section channel steel waist beam is treated with variable cross section at the end position, and the end section gradually changes to be the same as the equal cross section channel steel waist beam; the connecting device is a connection with bolt holes The plate is used to combine the constant section channel steel waist beam and the variable section channel steel waist beam together.
在可拆卸组合式变截面型钢腰梁中，所述的螺栓孔均采用椭圆形螺栓孔，以避免因施工误差导致组装过程中螺栓孔无法对准的问题。 In the detachable combined variable-section steel waist beam, the bolt holes are all elliptical bolt holes, so as to avoid the problem that the bolt holes cannot be aligned during the assembly process due to construction errors.
本发明可拆卸组合式变截面型钢腰梁的施工方法：根据基坑土层压力大小的不同，预先制作不同型号的包含等截面槽钢腰梁、变截面槽钢腰梁和连接装置的可拆卸组合式变截面型钢腰梁；安装时，在腰梁安装部位可预先安装三角支架作为腰梁的支撑结构，采用逐段、连续的方法，首先吊装等截面槽钢腰梁，利用锚杆的锚固作用固定就位，其次吊装变截面槽钢腰梁，就位后，利用连接装置将等截面槽钢腰梁和变截面槽钢腰梁连接组合在一起；拆卸时，施工顺序与安装程序相反。 The construction method of the detachable combined variable-section steel waist beam of the present invention: according to the difference in the pressure of the soil layer of the foundation pit, different types of detachable steel waist beams including equal-section channel steel waist beams, variable-section channel steel waist beams and connecting devices are manufactured in advance. Combined variable cross-section steel waist beam; during installation, a triangular bracket can be pre-installed at the installation position of the waist beam as the support structure of the waist beam, and the section by section and continuous method is adopted. First, the equal section channel steel waist beam is hoisted and anchored by anchor The function is fixed in place, and then the variable-section channel steel waist beam is hoisted. After it is in place, the equal-section channel steel waist beam and the variable-section channel steel waist beam are connected and combined by the connecting device; when disassembling, the construction sequence is opposite to the installation procedure.
本发明可拆卸组合式变截面型钢腰梁的优点： The advantages of the detachable combined variable-section steel waist beam of the present invention:
（1）针对不同受力区采用不同截面的型钢，既保证了腰梁的承载能力，又避免了不必要的材料浪费，减轻了腰梁自重； (1) The section steel of different sections is used for different stress areas, which not only ensures the load-carrying capacity of the waist beam, but also avoids unnecessary waste of materials and reduces the weight of the waist beam;
（2）不同截面腰梁之间采用螺栓联结，组装拆卸简单方便，可重复使用； (2) The waist beams of different sections are connected by bolts, which is easy to assemble and disassemble, and can be reused;
（3）腰梁安装与拆卸时，采用逐段、连续的方法，简单易操作，节约施工周期； (3) When installing and disassembling the lumbar beam, adopt a segment-by-section and continuous method, which is simple and easy to operate, and saves the construction period;
（4）由于提前预制了型钢腰梁的各部分，基坑施工到腰梁层位时，可立即安装、及时承载。 (4) Due to the prefabricated parts of the section steel waist beam, when the foundation pit is constructed at the waist beam level, it can be installed immediately and loaded in time.
附图说明 Description of drawings
图1为本发明可拆卸组合式变截面型钢腰梁结构示意图。 Fig. 1 is a schematic diagram of the structure of the detachable combined variable-section steel waist beam of the present invention.
图2为本发明的安装示意图。 Figure 2 is a schematic diagram of the installation of the present invention.
图例说明：1-等截面槽钢腰梁；2-变截面槽钢腰梁； 3-连接装置；4-加劲肋；5-锚杆孔； 6-锚头；7-垫板；8-锚杆；9-螺栓孔；10-三角支架；11-细石混凝土。 Legend: 1-channel steel waist beam with equal cross-section; 2-channel steel waist beam with variable cross-section; 3-connecting device; 4-stiffener; 5-bolt hole; Rod; 9-bolt hole; 10-triangular bracket; 11-fine stone concrete.
具体实施方式 Detailed ways
本发明提供了一种可拆卸组合式变截面型钢腰梁，为使本发明实现的技术方案、达成目的及效果特征更加清楚明确，下面结合附图对其具体实施方式作详细说明。 The present invention provides a detachable and combined variable-section steel waist beam. In order to make the technical solution, purpose and effect characteristics of the present invention clearer, its specific implementation will be described in detail below with reference to the accompanying drawings.
如图1所示的可拆卸组合式变截面型钢腰梁由若干个等截面槽钢腰梁1、变截面槽钢腰梁2和连接装置3组成，连接方式为螺栓联结。 As shown in Figure 1, the detachable combined variable-section steel waist beam is composed of several equal-section channel steel waist beams 1, variable-section channel steel waist beams 2 and connecting devices 3, and the connection method is bolt connection.
所述的等截面槽钢腰梁1位于支护结构受剪区，主要承受剪力作用，等截面槽钢腰梁1腹板中间设有锚杆孔5，方便安装锚杆8；等截面槽钢腰梁1两端的腹板和翼缘均预设有螺栓孔9，方便利用连接装置3的连接。 The equal-section channel steel waist beam 1 is located in the shear area of the support structure and mainly bears the shear force. An anchor hole 5 is provided in the middle of the web plate of the equal-section channel steel waist beam 1 to facilitate the installation of the anchor rod 8; the equal-section groove The webs and flanges at both ends of the steel waist beam 1 are preset with bolt holes 9 to facilitate the connection by the connecting device 3 .
所述的变截面槽钢腰梁2位于支护结构受弯区，主要承受弯矩作用，变截面槽钢腰梁2在端部位置进行变截面处理，端部截面渐变至与等截面槽钢腰梁1相同，变截面槽钢腰梁2内部焊接有加劲肋4，两端的腹板和翼缘均预设有螺栓孔9，方便利用连接装置3的连接。 The variable cross-section channel steel waist beam 2 is located in the bending area of the support structure and mainly bears the action of bending moment. The variable cross section channel steel waist beam 2 is subjected to variable cross section processing at the end position, and the end cross section gradually changes to the same cross section channel steel The waist beam 1 is the same, the variable cross-section channel steel waist beam 2 is welded with stiffeners 4 inside, and the webs and flanges at both ends are preset with bolt holes 9 to facilitate the connection with the connecting device 3 .
所述的连接装置3设有螺栓孔9，螺栓孔9均为椭圆孔，避免因施工误差导致螺栓孔无法对正的问题。 The connecting device 3 is provided with bolt holes 9, and the bolt holes 9 are all elliptical holes, so as to avoid the problem that the bolt holes cannot be aligned due to construction errors.
施工时，根据基坑土层压力的不同，预先制作不同型号的包含等截面槽钢腰梁1、变截面槽钢腰梁2和连接装置3的可拆卸组合式变截面型钢腰梁；安装时，在腰梁安装部位可预先安装三角支架10作为腰梁的支撑结构，采用逐段、连续的方法，首先吊装等截面槽钢腰梁1，利用锚杆5的锚固作用固定就位，其次吊装变截面槽钢腰梁2，就位后，利用连接装置3将等截面槽钢腰梁和变截面槽钢腰梁连接组合在一起；拆卸时，与安装路径相反，依次拆除连接装置、变截面槽钢腰梁和等截面槽钢腰梁。 During construction, different types of detachable combined variable-section steel waist beams including equal-section channel steel waist beam 1, variable-section channel steel waist beam 2 and connecting device 3 are prefabricated according to the pressure of the soil layer of the foundation pit; , a triangular bracket 10 can be pre-installed at the installation site of the waist beam as the supporting structure of the waist beam, adopting a section-by-section and continuous method, first hoisting the equal-section channel steel waist beam 1, using the anchoring effect of the anchor rod 5 to fix it in place, and then hoisting Variable cross-section channel steel waist beam 2, after being in place, use connecting device 3 to connect and combine the equal cross-section channel steel waist beam and variable cross-section channel steel waist beam; Channel steel waist beams and channel steel waist beams of equal section.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107119700A (en) * | 2017-07-03 | 2017-09-01 | 四川农业大学 | A kind of slope reinforcement and ecological protection system |
| CN112459077A (en) * | 2020-10-28 | 2021-03-09 | 济南城建集团有限公司 | Continuous foundation pit waist beam and construction method thereof |
| CN112796334A (en) * | 2021-02-04 | 2021-05-14 | 河南民路网络科技有限公司 | An assembled recyclable waist beam for anchor cable |
| CN113356198A (en) * | 2021-07-01 | 2021-09-07 | 青岛业高建设工程有限公司市北分公司 | Single-spliced channel steel anchor rod waist beam structure and using method thereof |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2481759Y (en) * | 2001-06-29 | 2002-03-13 | 孙洪涛 | Steel-pipe pile and anchor bar combined foundation pit supporting member |
| CN201526090U (en) * | 2009-09-16 | 2010-07-14 | 永峻工程顾问股份有限公司 | I-shaped steel beam structure |
| CN201649104U (en) * | 2009-12-09 | 2010-11-24 | 北京市新发京建工贸有限公司 | Steel purlin suit and steel purlin for subway foundation pit support |
| CN102704490A (en) * | 2012-06-11 | 2012-10-03 | 上海强劲地基工程股份有限公司 | Assembled waist rail |
| CN203200760U (en) * | 2013-02-22 | 2013-09-18 | 东通岩土科技（杭州）有限公司 | Detachable prestress support frame system |
| CN203393721U (en) * | 2013-07-26 | 2014-01-15 | 浙江博雷重型机床制造有限公司 | Inner support main purlin component |
| JP5490300B1 (en) * | 2013-10-15 | 2014-05-14 | 株式会社フジコーポレーション | Retaining wall structure and retaining wall construction method |
| CN204780942U (en) * | 2015-07-02 | 2015-11-18 | 山东科技大学 | Can dismantle combination formula variable cross section shaped steel waist rail |
-
2015
- 2015-07-02 CN CN201510380197.0A patent/CN104947688A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2481759Y (en) * | 2001-06-29 | 2002-03-13 | 孙洪涛 | Steel-pipe pile and anchor bar combined foundation pit supporting member |
| CN201526090U (en) * | 2009-09-16 | 2010-07-14 | 永峻工程顾问股份有限公司 | I-shaped steel beam structure |
| CN201649104U (en) * | 2009-12-09 | 2010-11-24 | 北京市新发京建工贸有限公司 | Steel purlin suit and steel purlin for subway foundation pit support |
| CN102704490A (en) * | 2012-06-11 | 2012-10-03 | 上海强劲地基工程股份有限公司 | Assembled waist rail |
| CN203200760U (en) * | 2013-02-22 | 2013-09-18 | 东通岩土科技（杭州）有限公司 | Detachable prestress support frame system |
| CN203393721U (en) * | 2013-07-26 | 2014-01-15 | 浙江博雷重型机床制造有限公司 | Inner support main purlin component |
| JP5490300B1 (en) * | 2013-10-15 | 2014-05-14 | 株式会社フジコーポレーション | Retaining wall structure and retaining wall construction method |
| CN204780942U (en) * | 2015-07-02 | 2015-11-18 | 山东科技大学 | Can dismantle combination formula variable cross section shaped steel waist rail |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107119700A (en) * | 2017-07-03 | 2017-09-01 | 四川农业大学 | A kind of slope reinforcement and ecological protection system |
| CN112459077A (en) * | 2020-10-28 | 2021-03-09 | 济南城建集团有限公司 | Continuous foundation pit waist beam and construction method thereof |
| CN112796334A (en) * | 2021-02-04 | 2021-05-14 | 河南民路网络科技有限公司 | An assembled recyclable waist beam for anchor cable |
| CN113356198A (en) * | 2021-07-01 | 2021-09-07 | 青岛业高建设工程有限公司市北分公司 | Single-spliced channel steel anchor rod waist beam structure and using method thereof |
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Application publication date: 20150930 |