CN207882071U - A kind of fixation loading device based on plank test specimen - Google Patents
A kind of fixation loading device based on plank test specimen Download PDFInfo
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- CN207882071U CN207882071U CN201820113131.4U CN201820113131U CN207882071U CN 207882071 U CN207882071 U CN 207882071U CN 201820113131 U CN201820113131 U CN 201820113131U CN 207882071 U CN207882071 U CN 207882071U
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- 238000004873 anchoring Methods 0.000 claims abstract description 36
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Abstract
本实用新型公开了一种基于板材试件的固定加载装置，包括：反力框架、张拉装置和锚固装置；反力框架的顶梁的上侧面设置有安装通孔，反力框架的底梁的上设置有第一试件槽和第一连接通孔，第一连接通孔穿过第一试件槽；张拉装置包括张拉板和张拉杆，张拉杆的一端与张拉板连接，张拉杆的另一端穿过安装通孔与锚固装置连接；锚固装置设置有第二试件槽和第二连接通孔；其中，试件置于第一试件槽和第二试件槽后，能够通过第一连接通孔、第二连接通孔和连接部件与反力框架和锚固装置固定连接。本实用新型的固定加载装置加载精确，加载效率较高，可提高加载实验的效率和精确度。
The utility model discloses a fixed loading device based on a plate test piece, comprising: a reaction force frame, a tensioning device and an anchoring device; the upper side of the top beam of the reaction force frame is provided with a through hole for installation; The first test piece groove and the first connecting through hole are arranged on the top, and the first connecting through hole passes through the first test piece groove; the tensioning device includes a tensioning plate and a tensioning rod, and one end of the tensioning rod is connected with the tensioning plate, The other end of the tension rod is connected to the anchoring device through the installation through hole; the anchoring device is provided with a second test piece groove and a second connecting through hole; wherein, the test piece is placed behind the first test piece groove and the second test piece groove, It can be fixedly connected with the reaction force frame and the anchoring device through the first connection through hole, the second connection through hole and the connection component. The fixed loading device of the utility model has precise loading and high loading efficiency, and can improve the efficiency and accuracy of loading experiments.
Description
技术领域technical field
本实用新型属于实验加载装置技术领域，具体涉及一种基于板材试件的固定加载装置。The utility model belongs to the technical field of experimental loading devices, in particular to a fixed loading device based on plate test pieces.
背景技术Background technique
在土木工程试验中，经常会用到板材试件单向拉伸夹持装置，通过夹持装置可模拟板材试件在结构中真实的受力状态。目前的夹持装置在实验过程中存在一些问题，例如夹持产生的力会出现偏心和夹持装置对试件螺孔位置造成的变形不可恢复等，上述问题会导致夹持应力下降，进而会导致产生实验误差。In civil engineering tests, the unidirectional tensile clamping device of the plate specimen is often used, and the real stress state of the plate specimen in the structure can be simulated by the clamping device. The current clamping device has some problems during the experiment, such as the force generated by the clamping will be eccentric and the deformation caused by the clamping device to the position of the screw hole of the specimen cannot be recovered. The above problems will lead to a decrease in the clamping stress, which in turn will lead to experimental error.
现有的加载装置中，普遍采用千斤顶施加应力，采用刚度较大的弹簧来施加所需的夹持应力，即每一个试件都需要一个夹持装置并且需要千斤顶单独加载。往往实验准备的试件较多，对这些试件一一加载费时费力，同时还需要购买大量的刚度很大的弹簧，造成了实验成本的浪费，具体实施有着很大的难度，存在加载不精确，加载效率低的问题。In the existing loading devices, jacks are generally used to apply stress, and springs with higher stiffness are used to apply the required clamping stress, that is, each specimen requires a clamping device and a jack is required to be loaded separately. There are often many test pieces prepared for the experiment, and it takes time and effort to load these test pieces one by one. At the same time, it is necessary to purchase a large number of springs with high stiffness, resulting in a waste of experimental costs. The specific implementation is very difficult, and there is inaccurate loading. , the problem of low loading efficiency.
实用新型内容Utility model content
本实用新型的目的在于提供一种基于板材试件的固定加载装置，以解决上述存在的技术问题。本实用新型的固定加载装置加载精确，加载效率较高，可提高加载实验的效率和精确度。The purpose of the utility model is to provide a fixed loading device based on a plate test piece to solve the above-mentioned existing technical problems. The fixed loading device of the utility model has precise loading and high loading efficiency, and can improve the efficiency and accuracy of loading experiments.
为达到上述目的，本实用新型采用以下技术方案：In order to achieve the above object, the utility model adopts the following technical solutions:
一种基于板材试件的固定加载装置，包括：反力框架、张拉装置和锚固装置；反力框架为矩形框架，反力框架的顶梁的上侧面设置有安装通孔，反力框架的底梁上设置有第一试件槽和第一连接通孔，第一连接通孔穿过第一试件槽；张拉装置包括张拉板和张拉杆，张拉杆的一端与张拉板连接，张拉杆的另一端穿过安装通孔与锚固装置连接，锚固装置设置于反力框架内；锚固装置设置有第二试件槽和第二连接通孔。A fixed loading device based on a plate test piece, comprising: a reaction force frame, a tensioning device and an anchoring device; The bottom beam is provided with a first specimen groove and a first connecting through hole, and the first connecting through hole passes through the first specimen groove; the tensioning device includes a tensioning plate and a tensioning rod, and one end of the tensioning rod is connected to the tensioning plate , the other end of the tension rod is connected to the anchoring device through the installation through hole, and the anchoring device is arranged in the reaction force frame; the anchoring device is provided with a second specimen groove and a second connecting through hole.
进一步的，还包括试件，试件置于第一试件槽和第二试件槽后，能够通过第一连接通孔、第二连接通孔和连接部件分别与反力框架和锚固装置固定连接。Further, it also includes a test piece, after the test piece is placed in the first test piece groove and the second test piece groove, it can be respectively fixed with the reaction force frame and the anchoring device through the first connection through hole, the second connection through hole and the connecting parts connect.
进一步的，反力框架内设置有支撑梁，支撑梁为竖直支撑梁，竖直支撑梁的数量为一个，反力框架关于竖直支撑梁左右对称。Further, a support beam is provided in the reaction force frame, the support beam is a vertical support beam, and the number of the vertical support beam is one, and the reaction force frame is left-right symmetrical about the vertical support beam.
进一步的，张拉板的下侧面固定设置有顶升垫板，顶升垫板与千斤顶接触的一侧固定设置有防滑卡。Further, the lower side of the tension plate is fixedly provided with a jacking pad, and the side of the jacking pad in contact with the jack is fixedly provided with an anti-skid card.
进一步的，第一试件槽与第二试件槽均为矩形槽，矩形槽内设置有钢板，钢板通过螺栓与矩形槽固定连接。Further, both the first specimen groove and the second specimen groove are rectangular grooves, steel plates are arranged in the rectangular grooves, and the steel plates are fixedly connected to the rectangular grooves by bolts.
进一步的，张拉杆为螺纹杆，螺纹杆上设置有锚固螺母。Further, the tension rod is a threaded rod, and anchor nuts are arranged on the threaded rod.
进一步的，锚固螺母设置于反力框架与张拉板之间，锚固螺母的直径大于安装通孔的直径。Further, the anchor nut is arranged between the reaction force frame and the tension plate, and the diameter of the anchor nut is larger than the diameter of the installation through hole.
进一步的，连接部件为螺栓。Further, the connecting parts are bolts.
进一步的，反力框架内设置有一个竖直支撑梁，反力框架的底梁上设置有两个矩形的第一试件槽和两个第一连接通孔，每个第一连接通孔均对应穿过一个第一试件槽，反力框架的顶梁的上侧面设置有两个安装通孔，每个安装通孔均与一个第一试件槽对应设置，反力框架关于竖直支撑梁左右对称；每个安装通孔内安装有一个张拉杆，张拉杆为螺纹杆，螺纹杆的上端与张拉板固定连接，下端与锚固装置固定连接，螺纹杆上安装有锚固螺母；锚固装置的数量为两个。Further, a vertical support beam is arranged in the reaction force frame, and two rectangular first specimen grooves and two first connection through holes are arranged on the bottom beam of the reaction force frame, and each first connection through hole is Correspondingly passing through a first specimen slot, two installation through holes are provided on the upper side of the top beam of the reaction force frame, and each installation through hole is correspondingly provided with a first specimen slot, and the reaction force frame is vertically supported The beam is left and right symmetrical; a tension rod is installed in each installation through hole. The tension rod is a threaded rod. The number is two.
进一步的，锚固装置的宽度与反力框架的竖梁的间距相同。Further, the width of the anchoring device is the same as the distance between the vertical beams of the reaction force frame.
与现有技术相比，本实用新型具有以下优点：Compared with the prior art, the utility model has the following advantages:
本实用新型的的加载装置通过第一试件槽和第二试件槽将试件固定，试件槽的侧壁夹住试件，可降低试件的在加载实验中的局部变形，提高了加载的精确性；加载装置可同时进行多个试件的加载实验，提高了实验效率；无需购置大量的弹簧，可降低实验成本。The loading device of the utility model fixes the test piece through the first test piece groove and the second test piece groove, and the side wall of the test piece groove clamps the test piece, which can reduce the local deformation of the test piece in the loading experiment and improve the The accuracy of loading; the loading device can carry out loading experiments on multiple specimens at the same time, which improves the efficiency of the experiment; there is no need to purchase a large number of springs, which can reduce the cost of the experiment.
进一步的，反力框架为矩形框架，便于支撑，防止反力框架倾倒；矩形框架内设置支撑梁可防止反力框架受力变形，防滑卡可防止千斤顶与顶升垫板发生相对滑动。Further, the reaction frame is a rectangular frame, which is convenient for support and prevents the reaction frame from toppling over; a support beam is set in the rectangular frame to prevent the reaction frame from being deformed by force, and the anti-slip card can prevent the jack and the lifting pad from sliding relative to each other.
进一步的，支撑梁为竖直支撑梁，可增强反力框架的抗压能力。Further, the support beam is a vertical support beam, which can enhance the compression resistance of the reaction force frame.
进一步的，通过在张拉板上设置顶升垫板，可防止张拉板受到千斤顶的顶力而发生变形。Further, by arranging a jacking pad on the tensioning plate, the tensioning plate can be prevented from being deformed by the jacking force of the jack.
进一步的，通过将试件槽设置有矩形槽，并在矩形槽内设置钢板夹，可进一步降低试件在加载实验中的局部变形。Further, by providing the specimen groove with a rectangular groove, and arranging the steel plate clamp in the rectangular groove, the local deformation of the specimen during the loading test can be further reduced.
进一步的，加载到预设值时，通过拧紧锚固螺母，可将试件固定在拉伸状态，此时可将加载用的千斤顶卸载后，移用到别的加载装置，可提高千斤顶的利用率。Further, when loading to the preset value, the specimen can be fixed in a tensioned state by tightening the anchor nut. At this time, the loading jack can be unloaded and transferred to another loading device, which can improve the utilization rate of the jack. .
进一步的，通过两试件槽固定试件可降低试件的局部变形；张拉装置可同时对两个试件加载，提高了实验的效率，降低了实验的成本；两个试件对称加载，可防止加载力偏心，进一步提升加载实验的精确性。Further, the local deformation of the test piece can be reduced by fixing the test piece through the two test piece grooves; the tensioning device can simultaneously load the two test pieces, which improves the efficiency of the experiment and reduces the cost of the experiment; the two test pieces are loaded symmetrically, It can prevent the eccentricity of the loading force and further improve the accuracy of the loading experiment.
进一步的，锚固装置的宽度刚好设置为反力框架的间距，可限制锚固装置只能上下进行移动，而防止左右晃动产生偏心和附加弯矩。Furthermore, the width of the anchoring device is just set to the distance between the reaction force frames, which can limit the anchoring device to move only up and down, and prevent eccentricity and additional bending moment caused by left and right shaking.
附图说明Description of drawings
图1是本实用新型的一种基于板材试件的固定加载装置的整体结构示意图；Fig. 1 is a kind of overall structure schematic diagram of the fixed loading device based on plate test piece of the present invention;
图2是图1中的反力框架的结构示意图；Fig. 2 is a structural schematic diagram of the reaction frame in Fig. 1;
图3是图1中的锚固装置的结构示意图；Fig. 3 is a schematic structural view of the anchoring device in Fig. 1;
图4是图1中的张拉装置与锚固装置连接结构示意图；Fig. 4 is a schematic diagram of the connection structure between the tensioning device and the anchoring device in Fig. 1;
图5是图1中的试件的结构示意图；Fig. 5 is the structural representation of the test piece among Fig. 1;
图1至图5中，1反力框架；2张拉装置；201张拉板；202张拉杆；3锚固装置；4试件；5第一试件槽；6第二试件槽；7安装通孔；8第一连接通孔；9第二连接通孔；10顶升垫板；11锚固螺母；12防滑卡。In Fig. 1 to Fig. 5, 1 reaction force frame; 2 tension devices; 201 tension plates; 202 tension rods; 3 anchoring devices; 4 test pieces; Through hole; 8 first connecting through hole; 9 second connecting through hole; 10 jacking backing plate; 11 anchor nut; 12 anti-slip card.
具体实施方式Detailed ways
下面结合附图和具体实施例对本实用新型做进一步详细说明。Below in conjunction with accompanying drawing and specific embodiment the utility model is described in further detail.
参考图1，本实用新型的一种基于板材试件的固定加载装置，包括：反力框架1、张拉装置2和锚固装置3。Referring to FIG. 1 , a fixed loading device based on a plate test piece of the present invention includes: a reaction force frame 1 , a tensioning device 2 and an anchoring device 3 .
参考图2，反力框架1为矩形框架，采用不锈钢方管进行焊接制作而成。矩形框架内设置有一个竖直支撑梁，反力框架1关于竖直支撑梁左右对称。反力框架1的顶梁的上侧面设置有安装通孔7，反力框架1的底梁的上上侧面设置有第一试件槽5，前侧面设置有第一连接通孔 8，第一连接通孔8穿过第一试件槽5。反力框架1主要平衡受拉试件所产生的反力，以及锚固试件的锚固力。反力框架1中竖直支撑梁主要承受压力，水平梁主要承受弯矩及剪力，当试件4需要较大的拉力时，可更换刚度更大的材料来制作反力框架1，或者在反力框架1内设置多个支撑梁。Referring to Fig. 2, the reaction force frame 1 is a rectangular frame made of stainless steel square tubes by welding. A vertical support beam is arranged in the rectangular frame, and the reaction force frame 1 is left-right symmetrical about the vertical support beam. The upper side of the top beam of the reaction force frame 1 is provided with an installation through hole 7, the upper and upper side of the bottom beam of the reaction force frame 1 is provided with a first specimen groove 5, and the front side is provided with a first connecting through hole 8. The connecting through hole 8 passes through the first test piece groove 5 . The reaction force frame 1 mainly balances the reaction force generated by the tensile test piece and the anchoring force of the anchor test piece. In the reaction frame 1, the vertical support beam mainly bears the pressure, and the horizontal beam mainly bears the bending moment and shear force. When the specimen 4 needs a larger tensile force, the material with higher stiffness can be replaced to make the reaction frame 1, or in the A plurality of support beams are arranged in the reaction force frame 1 .
参考图3，锚固装置3的宽度与反力框架1的竖直梁的间距相同，可限制锚固装置3只可上下进行拉伸移动，而防止其左右晃动产生偏心和附加弯矩。锚固装置3设置有第二试件槽6 和第二连接通孔9；锚固装置3采用螺栓对试件4进行夹持，同时在两面设置钢板夹住以防止试件4产生较大的局部变形，锚固装置3的另一端与螺纹杆固定连接，可随张拉装置2进行上下移动。第一试件槽5与第二试件槽6均为矩形槽，矩形槽内设置有钢板夹。Referring to Fig. 3, the width of the anchoring device 3 is the same as the spacing of the vertical beams of the reaction force frame 1, which can limit the anchoring device 3 to only move up and down, and prevent eccentricity and additional bending moment from swaying left and right. The anchoring device 3 is provided with a second specimen groove 6 and a second connecting through hole 9; the anchoring device 3 uses bolts to clamp the specimen 4, and at the same time sets steel plates on both sides to prevent the specimen 4 from undergoing large local deformation. , the other end of the anchoring device 3 is fixedly connected with the threaded rod, and can move up and down with the tensioning device 2. Both the first sample groove 5 and the second sample groove 6 are rectangular grooves, and steel plate clips are arranged in the rectangular grooves.
参考图4，张拉装置2包括张拉板201和两个张拉杆202，每个张拉杆202的一端与张拉板201连接，张拉杆202的另一端穿过安装通孔7与锚固装置3连接。张拉杆202上设置有锚固螺母11，锚固螺母11设置于反力框架1与张拉板201之间，锚固螺母11的直径大于安装通孔7的直径。张拉杆202为两个较长的螺纹杆，张拉板201为一块钢板。张拉板201的下侧面的中心位置固定设置有顶升垫板10，顶升垫板10与千斤顶接触的一侧固定设置有防滑卡12。在与螺纹杆相连的钢板上提前焊接四块与千斤顶顶头尺寸合适的角钢，从而正好卡住千斤顶顶头，防止千斤顶与加载钢板产生相对滑动。张拉板201与反力框架1之间留出千斤顶的空间，将千斤顶的中心位置对准顶升垫板10的中心，千斤顶顶升钢板带动螺纹杆拉伸从而反向对试件施加荷载，待施加至指定荷载时，通过拧紧螺纹杆上的锚固螺母11来进行固定，之后可卸下千斤顶。Referring to Fig. 4, the tensioning device 2 comprises a tensioning plate 201 and two tensioning rods 202, one end of each tensioning rod 202 is connected with the tensioning plate 201, and the other end of the tensioning rod 202 passes through the installation through hole 7 and the anchoring device 3 connect. An anchor nut 11 is arranged on the tension rod 202 . The anchor nut 11 is arranged between the reaction force frame 1 and the tension plate 201 . The diameter of the anchor nut 11 is larger than the diameter of the installation through hole 7 . The tension rods 202 are two longer threaded rods, and the tension plate 201 is a steel plate. The central position of the lower side of the tensioning plate 201 is fixedly provided with a jacking pad 10 , and the side of the jacking pad 10 in contact with the jack is fixedly provided with an anti-skid card 12 . Weld four pieces of angle steel with a suitable size to the jack head on the steel plate connected to the threaded rod in advance, so as to just block the jack head and prevent the relative sliding between the jack and the loaded steel plate. A jack space is reserved between the tensioning plate 201 and the reaction frame 1, and the center position of the jack is aligned with the center of the lifting backing plate 10, and the jack lifts the steel plate to drive the threaded rod to stretch to reversely apply a load to the specimen, When the specified load is to be applied, it is fixed by tightening the anchor nut 11 on the threaded rod, after which the jack can be removed.
参考图5，试件4的两端分别设置有连接孔，试件4置于第一试件槽5和第二试件槽6后，能够通过第一连接通孔8、第二连接通孔9、连接孔和连接螺栓与反力框架1和锚固装置3固定连接。Referring to Fig. 5, the two ends of the test piece 4 are respectively provided with connecting holes, after the test piece 4 is placed in the first test piece groove 5 and the second test piece groove 6, it can pass through the first connecting through hole 8, the second connecting through hole 9. The connecting holes and connecting bolts are fixedly connected with the reaction force frame 1 and the anchoring device 3 .
参考图1至图5，本实用新型的一种基于板材试件的固定加载装置，反力框架1内设置有一个竖直支撑梁，反力框架1的底梁上设置有两个矩形的第一试件槽5和两个第一连接通孔8，每个第一连接通孔8均对应穿过一个第一试件槽5，反力框架1的顶梁的上侧面设置有两个安装通孔7，每个安装通孔7均与一个第一试件槽5对应设置，反力框架1关于竖直支撑梁左右对称；每个安装通孔7内安装有一个张拉杆202，张拉杆202为螺纹杆，螺纹杆的上端与张拉板201固定连接，下端与锚固装置3固定连接，螺纹杆上安装有锚固螺母11；锚固装置3的数量为两个。试件4的两端中的一端打孔通过螺栓锚固在反力框架1上，试件另一端打孔与两钢板螺栓组成的锚固装置3相连。Referring to Fig. 1 to Fig. 5, a fixed loading device based on a plate test piece of the present invention, a vertical support beam is arranged in the reaction force frame 1, and two rectangular first support beams are arranged on the bottom beam of the reaction force frame 1. A test piece groove 5 and two first connecting through holes 8, each first connecting through hole 8 corresponds to pass through a first test piece groove 5, and the upper side of the top beam of the reaction force frame 1 is provided with two mounting holes. Through holes 7, each installation through hole 7 is correspondingly arranged with a first test piece groove 5, and the reaction force frame 1 is symmetrical about the vertical support beam; a tension rod 202 is installed in each installation through hole 7, and the tension rod 202 is a threaded rod, the upper end of the threaded rod is fixedly connected with the tensioning plate 201, and the lower end is fixedly connected with the anchoring device 3, and the anchoring nut 11 is installed on the threaded rod; the number of anchoring devices 3 is two. One of the two ends of the test piece 4 is drilled and anchored to the reaction force frame 1 through bolts, and the other end of the test piece is drilled and connected to the anchoring device 3 composed of two steel plate bolts.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110553912A (en) * | 2019-09-10 | 2019-12-10 | 浙江海洋大学 | Tensile test equipment |
| CN113945449A (en) * | 2021-11-15 | 2022-01-18 | 西安建筑科技大学 | Experimental device for plate type tension member load reinforcement and installation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110553912A (en) * | 2019-09-10 | 2019-12-10 | 浙江海洋大学 | Tensile test equipment |
| CN113945449A (en) * | 2021-11-15 | 2022-01-18 | 西安建筑科技大学 | Experimental device for plate type tension member load reinforcement and installation method thereof |
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