Method for testing uplift-resistant bearing capacity of building blocks in building block structure
A technology of masonry structure and test method, which is applied in the test of machine/structural parts, the test of mechanical parts, force/torque/work measuring instrument, etc. Simple, easy to operate, high stability
Active Publication Date: 2014-11-12
浙江省钱塘江管理局勘测设计院
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Problems solved by technology
In areas with wind, waves and tidal surges, the blocks in the masonry structure may be lifted and damaged. However, at present, there is no test device for measuring the anti-lifting bearing capacity of the blocks in the masonry structure.
Method used
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Embodiment Construction
[0021] Such as figure 1 As shown, this embodiment is a test method for the anti-lifting bearing capacity of blocks in a masonry structure, which can be used for testing the anti-lifting bearing capacity of stone strips on ancient seawalls. The steps are as follows:
[0022] 1. First, select the stone strips as samples on the ancient seawall, that is, the tested block 102 in this example. The principle is to select the stone strips of the first or third floor of the ancient seawall from top to bottom for testing. The tested block 102, there should be no other load on the top of the tested block, and the adjacent stones are all original stones. The number of selected tested blocks 102 is the same as the conventional in-situ direct shear test in the field;
[0023] 2. Build a test work platform at the test location, and install and bury supports that provide recoil force. In this example, the supports are formed by stacking several prefabricated concrete blocks 10 with a single w...
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Abstract
The invention relates to a method for testing uplift-resistant bearing capacity of building blocks in a building block structure. The technical scheme includes that the method comprises steps of a, selecting a tested building block; b, mounting a support for providing recoil; c, grinding the lower middle portion of an outer upright surface of the tested building block by an electric cutting machine; d, placing a triangular support seat which leans against the support, and sequentially arranging a stress sensor and a jack on an inclined plane of the triangular support seat; e, mounting a displacement measuring device on the top surface of the tested building block; f, performing stepping loading; and g, processing data and drawing. The head of the jack is abutted to a concave force bearing point on the tested building block, and the bottom surface of the jack clings to the inclined plane of the triangular support seat via the stress sensor. The method for testing the uplift-resistant bearing capacity of the building blocks in the building block structure has the advantages of simplicity, feasibility, clear structure and convenience in operation, and is used for measuring the uplift-resistant bearing capacity of the building blocks in the building block structure. The method is applicable to the technical field of in-situ tests in civil engineering.
Description
technical field [0001] The invention relates to an in-situ direct shear test method, in particular to a test method for the lift-resistant bearing capacity of blocks in a masonry structure. It belongs to the technical field of in-situ testing in civil engineering, and can be used in water conservancy, port waterway, transportation, municipal and other industries to measure the lift-resistant bearing capacity of blocks in masonry structures. Background technique [0002] The conventional in-situ direct shear test is used to measure the shear strength and friction coefficient of the fixed shear surface of rock and soil or the contact surface of different media, and the applied load is usually horizontal. In areas with wind, waves and tidal surges, the blocks in the masonry structure may be lifted and damaged. However, at present, there is no test device for measuring the anti-lifting bearing capacity of the blocks in the masonry structure. Contents of the invention [0003]...
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IPC IPC(8): G01L5/00G01M13/00
Inventor 陈振华张开伟贺俊王拥文祝湛毅俞先伟沈跃君
Owner 浙江省钱塘江管理局勘测设计院