Is the masonry at the bottom of the beam always piled to the bottom of the beam? In the project is generally how to do?
Oblique brick bricks in this form of the beam caused by the beam and fill the wall of the extrusion force does not have the advantage, the actual situation is just the opposite. Did not do the construction of the possible understanding of this, if it is a horizontal masonry, then to the end of the beam at the end will always leave a layer of brick are no less than the level of the gap, the gap you can only plug the mortar inside, very Difficult to be dense full, that in the end to avoid cracks; if the use of oblique brick, then you can put all the top full, so as to avoid cracks.
1, this situation is usually only in the filling wall construction occurs, is the first beam after the wall of the frame structure.
2, after the construction of the filling wall should be in the framework of the structure has enough strength before they can go up masonry, and masonry space order should be from top to bottom (which is currently most of the project is not strictly enforced) When the construction requirements of the beam from the beam at the end of 20CM will stop construction, especially at least 7 days before the method can be used to fill the brick. The purpose of this requirement is to stabilize the deformation of the system after loading, thus avoiding the negative bending moment of the beam caused by the frame beam, thus changing the stress state of the beam of the frame structure, causing the safety hazard (accident); two to avoid filling the wall Due to the beam under the crack was squeezed and cracked.
In other words, stay 7 days after the closure of the beam and stressed the top-down construction sequence, itself is to avoid the two adverse consequences, with the back of the masonry purpose does not matter.
The purpose of the masonry brick is to make the filling wall and the beam more closely combined, so as to avoid the occurrence of cracks in some demanding places, but also require the location of the cement mortar but also to fill the micro-expansion agent, the purpose is to compensate the wall Body sinking deformation, thus avoiding cracking.
